0000723125-20-000082 | 10-K | XBRL Viewer

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Cover Page - USD ($) $ in Billions	12 Months Ended
Cover Page - USD ($) $ in Billions	Sep. 03, 2020	Oct. 09, 2020	Feb. 27, 2020
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Sep. 03, 2020
Document Transition Report	false
Entity File Number	1-10658
Entity Registrant Name	Micron Technology, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	75-1618004
Entity Address, Address Line One	8000 S. Federal Way
Entity Address, City or Town	Boise
Entity Address, State or Province	ID
Entity Address, Postal Zip Code	83716
City Area Code	208
Local Phone Number	368-4000
Title of 12(b) Security	Common Stock, par value $0.10 per share
Trading Symbol	MU
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 44.8
Entity Common Stock, Shares Outstanding		1,113,221,799
Documents Incorporated by Reference	DOCUMENTS INCORPORATED BY REFERENCE Portions of the Proxy Statement for the registrant’s Fiscal 2020 Annual Meeting of Shareholders to be held on January 14, 2021 are incorporated by reference into Part III of this Annual Report on Form 10-K.
Entity Central Index Key	0000723125
Current Fiscal Year End Date	--09-03
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	false

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Income Statement [Abstract]
Revenue	$ 21,435	$ 23,406	$ 30,391
Cost of goods sold	14,883	12,704	12,500
Gross margin	6,552	10,702	17,891
Research and development	2,600	2,441	2,141
Selling, general, and administrative	881	836	813
Other operating (income) expense, net	68	49	(57)
Operating income	3,003	7,376	14,994
Interest income	114	205	120
Interest expense	(194)	(128)	(342)
Other non-operating income (expense), net	60	(405)	(465)
Income (loss) before income taxes, net income (loss) attributable to noncontrolling interests, and equity in net income (loss) of equity method investees	2,983	7,048	14,307
Income tax (provision) benefit	(280)	(693)	(168)
Equity in net income (loss) of equity method investees	7	3	(1)
Net income	2,710	6,358	14,138
Net income attributable to noncontrolling interests	(23)	(45)	(3)
Net income attributable to Micron	$ 2,687	$ 6,313	$ 14,135
Earnings per share
Basic (in dollars per share)	$ 2.42	$ 5.67	$ 12.27
Diluted (in dollars per share)	$ 2.37	$ 5.51	$ 11.51
Number of shares used in per share calculations
Basic (in shares)	1,110	1,114	1,152
Diluted (in shares)	1,131	1,143	1,229

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 2,710	$ 6,358	$ 14,138
Other comprehensive income (loss), net of tax
Gains (losses) on derivative instruments	46	(3)	(15)
Pension liability adjustments	15	(6)	(3)
Gains (losses) on investments	1	9	(2)
Foreign currency translation adjustments	0	(1)	1
Other comprehensive income (loss)	62	(1)	(19)
Total comprehensive income	2,772	6,357	14,119
Comprehensive income attributable to noncontrolling interests	(23)	(45)	(3)
Comprehensive income attributable to Micron	$ 2,749	$ 6,312	$ 14,116

CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Millions

Sep. 03, 2020

Aug. 29, 2019

Assets

Cash and equivalents

$ 7,624

$ 7,152

Short-term investments

518

803

Receivables

3,912

3,195

Inventories

5,607

5,118

Other current assets

304

235

Total current assets

17,965

16,503

Long-term marketable investments

^[1]

1,048

1,164

Property, plant, and equipment

31,031

28,240

Operating lease right-of-use assets

584

Intangible assets

334

340

Deferred tax assets

707

837

Goodwill

1,228

Other noncurrent assets

781

575

Total assets

53,678

48,887

Liabilities and equity

Accounts payable and accrued expenses

5,817

4,626

Current debt

270

1,310

Other current liabilities

548

454

Total current liabilities

6,635

6,390

Long-term debt

6,373

4,541

Operating Lease, Liability, Noncurrent

533

Noncurrent unearned government incentives

643

636

Other noncurrent liabilities

498

452

Total liabilities

14,682

12,019

Commitments and contingencies

Redeemable noncontrolling interest

Micron shareholders' equity

Common stock, $0.10 par value, 3,000 shares authorized, 1,194 shares issued and 1,113 outstanding (1,182 shares issued and 1,106 outstanding as of August 29, 2019)

119

118

Additional capital

8,917

8,214

Retained earnings

33,384

30,761

Treasury stock, 81 shares held (76 shares as of August 29, 2019)

(3,495)

(3,221)

Accumulated other comprehensive income (loss)

Total Micron shareholders' equity

38,996

35,881

Noncontrolling interest in subsidiary

889

Total equity

38,996

36,770

Total liabilities and equity

$ 53,678

$ 48,887

[1]	The maturities of long-term marketable securities range from one to four years.

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares shares in Millions	Sep. 03, 2020	Aug. 29, 2019
Liabilities and equity
Common Stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common Stock, authorized shares (in shares)	3,000	3,000
Common Stock, issued (in shares)	1,194	1,182
Common Stock, outstanding (in shares)	1,113	1,106
Treasury Stock, held (in shares)	81	76

STATEMENT OF CHANGES IN EQUITY - USD ($) shares in Millions, $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	Common Stock	Additional Capital	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Total Micron Shareholders' Equity	Total Micron Shareholders' Equity Cumulative Effect, Period of Adoption, Adjustment	Noncontrolling Interests in Subsidiaries
Balance (in shares) at Aug. 31, 2017			1,116
Balance at Aug. 31, 2017	$ 19,470		$ 112	$ 8,287	$ 10,260		$ (67)	$ 29	$ 18,621		$ 849
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	14,138				14,135				14,135		3
Other comprehensive income (loss), net	$ (19)							(19)	(19)
Stock issued in public offering (in shares)	34		34
Stock issued in public offering	$ 1,366		$ 3	1,363					1,366
Stock issued under stock plans (in shares)			22
Stock issued under stock plans	289		$ 2	287					289
Stock-based compensation expense	198			198					198
Contributions from noncontrolling interest	18								0		18
Repurchase of stock (in shares)			(2)
Repurchase of stock	(71)		$ 0	(71)					(71)
Settlement of capped calls	0			429			(429)		0
Reclassification of redeemable convertible notes, net	18			18					18
Cash settlement and repurchase of convertible notes	(2,243)			(2,310)					(2,243)
Repurchase of convertible notes (treasury stock reissued to settle)							67
Balance (in shares) at Aug. 30, 2018			1,170
Balance at Aug. 30, 2018	33,164	$ 92	$ 117	8,201	24,395	$ 92	(429)	10	32,294	$ 92	870
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	6,358
Net income (excluding redeemable noncontrolling interest)	6,349				6,313				6,313		36
Other comprehensive income (loss), net	(1)							(1)	(1)
Stock issued under stock plans (in shares)			14
Stock issued under stock plans	179		$ 1	178					179
Stock-based compensation expense	243			243					243
Repurchase of stock (in shares)			(2)
Repurchase of stock	(2,728)		$ 0	103	(39)		(2,792)		(2,728)
Acquisitions of noncontrolling interest	(16)			1					1		(17)
Reclassification of redeemable convertible notes, net	3			3					3
Cash settlement and repurchase of convertible notes	$ (515)			(515)					(515)
Balance (in shares) at Aug. 29, 2019	1,182		1,182
Balance at Aug. 29, 2019	$ 36,770		$ 118	8,214	30,761		(3,221)	9	35,881		889
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,710
Net income (excluding redeemable noncontrolling interest)	2,702				2,687				2,687		15
Other comprehensive income (loss), net	62							62	62
Stock issued under stock plans (in shares)			14
Stock issued under stock plans	225		$ 1	224					225
Stock-based compensation expense	328			328					328
Repurchase of stock (in shares)			(2)
Repurchase of stock	(251)		$ 0	(11)	(64)		(176)		(251)
Acquisitions of noncontrolling interest	(784)			120					120		(904)
Settlement of capped calls	0			98			(98)		0
Cash settlement and repurchase of convertible notes	$ (56)			(56)					(56)
Balance (in shares) at Sep. 03, 2020	1,194		1,194
Balance at Sep. 03, 2020	$ 38,996		$ 119	$ 8,917	$ 33,384		$ (3,495)	$ 71	$ 38,996		$ 0

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Cash flows from operating activities
Net income	$ 2,710	$ 6,358	$ 14,138
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation expense and amortization of intangible assets	5,650	5,424	4,759
Amortization of debt discount and other costs	26	49	101
Stock-based compensation	328	243	198
(Gains) losses on debt prepayments, repurchases, and conversions	(40)	396	385
Change in operating assets and liabilities
Receivables	(723)	2,431	(1,734)
Inventories	(489)	(1,528)	(472)
Accounts payable and accrued expenses	725	(174)	668
Deferred income taxes, net	79	150	(265)
Other	40	(160)	(378)
Net cash provided by operating activities	8,306	13,189	17,400
Cash flows from investing activities
Expenditures for property, plant, and equipment	(8,223)	(9,780)	(8,879)
Purchases of available-for-sale securities	(1,857)	(4,218)	(760)
Proceeds from sales of available-for-sale securities	1,458	1,504	604
Proceeds from maturities of available-for-sale securities	814	1,541	320
Proceeds from government incentives	262	748	355
Other	(43)	120	144
Net cash provided by (used for) investing activities	(7,589)	(10,085)	(8,216)
Cash flows from financing activities
Repayments of debt	(4,366)	(3,340)	(10,194)
Acquisition of noncontrolling interest in IMFT	(744)	0	0
Payments to acquire treasury stock	(251)	(2,729)	(71)
Payments on equipment purchase contracts	(63)	(75)	(206)
Proceeds from issuance of debt	5,000	3,550	1,009
Proceeds from issuance of stock	225	179	1,655
Other	(118)	(23)	31
Net cash provided by (used for) financing activities	(317)	(2,438)	(7,776)
Effect of changes in currency exchange rates on cash, cash equivalents, and restricted cash	11	26	(37)
Net increase (decrease) in cash, cash equivalents, and restricted cash	411	692	1,371
Cash, cash equivalents, and restricted cash at beginning of period	7,279	6,587	5,216
Cash, cash equivalents, and restricted cash at end of period	7,690	7,279	6,587
Supplemental disclosures
Income taxes paid, net	(167)	(524)	(226)
Interest paid, net of amounts capitalized	(165)	(53)	(312)
Noncash equipment acquisitions on contracts payable	$ 278	$ 119	$ 84

Significant Accounting Policies	12 Months Ended
Significant Accounting Policies	Sep. 03, 2020
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Basis of Presentation Micron Technology, Inc., including its consolidated subsidiaries, is an industry leader in innovative memory and storage solutions. Through our global brands — Micron^® and Crucial^® — our broad portfolio of high-performance memory and storage technologies, including DRAM, NAND, 3D XPointmemory, and NOR, is transforming how the world uses information to enrich life for all. Backed by more than 40 years of technology leadership, our memory and storage solutions enable disruptive trends, including artificial intelligence, 5G, machine learning, and autonomous vehicles, in key market segments like mobile, data center, client, consumer, industrial, graphics, automotive, and networking. The accompanying consolidated financial statements include the accounts of Micron and our consolidated subsidiaries and have been prepared in accordance with accounting principles generally accepted in the United States of America. Intercompany balances and transactions have been eliminated in consolidation. Certain reclassifications have been made to prior period amounts to conform to current period presentation. See “Recently Adopted Accounting Standards.” Our fiscal year is the 52 or 53-week period ending on the Thursday closest to August 31. Fiscal 2020 contained 53 weeks and fiscal 2019 and 2018 each contained 52 weeks. Our fourth quarter of fiscal 2020 contained 14 weeks. All period references are to our fiscal periods unless otherwise indicated. Derivative and Hedging Instruments We use derivative instruments to manage our exposure to changes in currency exchange rates from (1) our monetary assets and liabilities denominated in currencies other than the U.S. dollar and (2) forecasted cash flows for certain capital expenditures and manufacturing costs. Derivative instruments are measured at their fair values and recognized as either assets or liabilities. The accounting for changes in the fair value of derivative instruments is based on the intended use of the derivative and the resulting designation. For derivative instruments that are not designated for hedge accounting, gains or losses from changes in fair values are recognized in other non-operating income (expense). For derivative instruments designated as cash flow hedges, gains or losses are included as a component of accumulated other comprehensive income and reclassified into earnings in the same line items and in the same periods in which the underlying transactions affect earnings. We enter into master netting arrangements with our counterparties to mitigate credit risk in derivative hedge transactions. These master netting arrangements allow us and our counterparties to net settle amounts owed to each other. Derivative assets and liabilities that can be net settled with each counterparty have been presented in our consolidated balance sheet on a net basis. Financial Instruments Cash equivalents include highly liquid short-term investments with original maturities to us of three months or less that are readily convertible to known amounts of cash. Other investments with remaining maturities of less than one year are included in short-term investments. Investments with remaining maturities greater than one year are included in long-term marketable investments. The carrying value of investment securities sold is determined using the specific identification method. Functional Currency The U.S. dollar is the functional currency for us and all of our consolidated subsidiaries. Goodwill and Non-Amortizing Intangible Assets We perform an annual impairment assessment for goodwill and non-amortizing intangible assets in our fourth quarter each year. Government Incentives We receive incentives from governmental entities related to expenses, assets, and other activities. Our government incentives may require that we meet or maintain specified spending levels and other operational metrics and may be subject to reimbursement if such conditions are not met or maintained. Government incentives are recorded in the financial statements in accordance with their purpose: as a reduction of expenses, a reduction of asset costs, or other income. Incentives related to specific operating activities are offset against the related expense in the period the expense is incurred. Incentives related to the acquisition or construction of fixed assets are recognized as a reduction in the carrying amounts of the related assets and reduce depreciation expense over the useful lives of the assets. Other incentives are recognized as other operating income. Government incentives received prior to being earned are recognized in current or noncurrent deferred income, whereas government incentives earned prior to being received are recognized in current or noncurrent receivables. Cash received from government incentives related to operating expenses is included as an operating activity in the statement of cash flows, whereas cash received from incentives related to the acquisition of property, plant, and equipment is included as an investing activity. Inventories Inventories are stated at the lower of average cost or net realizable value. Cost includes depreciation, labor, material, and overhead costs, including product and process technology costs. When net realizable value (which requires projecting future average selling prices, sales volumes, and costs to complete products in work in process inventories) is below cost, we record a charge to cost of goods sold to write down inventories to their estimated net realizable value in advance of when inventories are actually sold. We review the major characteristics of product type and markets in determining the unit of account for which we perform the lower of average cost or net realizable value analysis and categorize all inventories (including DRAM, NAND, and other memory) as a single group. We remove amounts from inventory and charge such amounts to cost of goods sold on an average cost basis. Leases In the first quarter of 2020, we elected new accounting policies in connection with the adoption of ASC 842 – Leases. We do not recognize a right-of-use asset or a lease liability for leases with a term of 12 months or less. For real estate and gas plant leases entered into after adoption, we do not separate lease and non-lease components. Sublease income is presented within lease expense. Product and Process Technology Costs incurred to (1) acquire product and process technology, (2) patent technology, and (3) maintain patent technology, are capitalized and amortized on a straight-line basis over periods ranging up to 12.5 years. We capitalize a portion of costs incurred to patent technology based on historical data of patents issued as a percent of patents we file. Product and process technology costs are amortized over the shorter of (1) the estimated useful life of the technology, (2) the patent term, or (3) the term of the technology agreement. Fully-amortized assets are removed from product and process technology and accumulated amortization. Product Warranty We generally provide a limited warranty that our products are in compliance with applicable specifications existing at the time of delivery. Under our standard terms and conditions of sale, liability for certain failures of product during a stated warranty period is usually limited to repair or replacement of defective items or return of, or a credit with respect to, amounts paid for such items. Under certain circumstances, we provide more extensive limited warranty coverage than that provided under our standard terms and conditions. Our warranty obligations are not material. Property, Plant, and Equipment Property, plant, and equipment is stated at cost and depreciated using the straight-line method over estimated useful lives of generally 10 to 30 years for buildings, 5 to 7 years for equipment, and 3 to 5 years for software. Assets held for sale are carried at the lower of cost or estimated fair value and are included in other noncurrent assets. When property, plant, or equipment is retired or otherwise disposed, the net book value is removed and we recognize any gain or loss in results of operations. We capitalize interest on borrowings during the period of time we carry out the activities necessary to bring assets to the condition of their intended use and location. Capitalized interest becomes part of the cost of assets. Research and Development Costs related to the conceptual formulation and design of products and processes are charged to R&D expense as incurred. Development of a product is deemed complete when it is qualified through reviews and tests for performance and reliability. Subsequent to product qualification, product costs are included in cost of goods sold. Amounts from cost-sharing arrangements are reflected as a reduction of R&D expense. Revenue Recognition Revenue is primarily recognized at a point in time when control of the promised goods is transferred to our customers in an amount that reflects the consideration we expect to be entitled to in exchange for those goods. Contracts with our customers are generally short-term in duration at fixed, negotiated prices with payment generally due shortly after delivery. We estimate a liability for returns using the expected value method based on historical rates of return. In addition, we generally offer price protection to our distributors, which is a form of variable consideration that decreases the transaction price. We use the expected value method, based on historical price adjustments and current pricing trends, to estimate the amount of revenue recognized from sales to distributors. Differences between the estimated and actual amounts are recognized as adjustments to revenue. Stock-based Compensation Stock-based compensation is measured at the grant date, based on the fair value of the award, and recognized as expense under the straight-line attribution method over the requisite service period. We account for forfeitures as they occur. We issue new shares upon the exercise of stock options or conversion of share units. Treasury Stock Treasury stock is carried at cost. When we retire our treasury stock, any excess of the repurchase price paid over par value is allocated between additional capital and retained earnings. Use of Estimates The preparation of financial statements and related disclosures in conformity with accounting principles generally accepted in the United States of America requires our management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues, expenses, and related disclosures. Estimates and judgments are based on historical experience, forecasted events, and various other assumptions that we believe to be reasonable under the circumstances. Estimates and judgments may differ under different assumptions or conditions. We evaluate our estimates and judgments on an ongoing basis. Actual results could differ from estimates.

Variable Interest Entities	12 Months Ended
Variable Interest Entities	Sep. 03, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Variable Interest Entities	Variable Interest Entities We have interests in entities that are variable interest entities (“VIEs”). If we are the primary beneficiary of a VIE, we are required to consolidate it. To determine if we are the primary beneficiary, we evaluate whether we have the power to direct the activities that most significantly impact the VIE’s economic performance and the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant to the VIE. Our evaluation includes identification of significant activities and an assessment of our ability to direct those activities based on governance provisions and arrangements to provide or receive product and process technology, product supply, operations services, equity funding, financing, and other applicable agreements and circumstances. Our assessments of whether we are the primary beneficiary of our VIEs require significant assumptions and judgments. Unconsolidated VIE PTI Xi’an: Powertech Technology Inc. Xi’an (“PTI Xi’an”) is a wholly-owned subsidiary of Powertech Technology Inc. (“PTI”) and was created to provide assembly services to us at our manufacturing site in Xi’an, China. We do not have an equity interest in PTI Xi’an. PTI Xi’an is a VIE because of the terms of its service agreement with us and its dependency on PTI to finance its operations. We do not have the power to direct the activities of PTI Xi’an that most significantly impact its economic performance, primarily because we do not have governance rights. Therefore, we do not consolidate PTI Xi’an. Our agreement for PTI to provide assembly services to us is deemed to contain an embedded lease for accounting purposes. As a result, as of September 3, 2020 and August 29, 2019, the accompanying consolidated balance sheets included net property, plant, and equipment of $38 million and $50 million, respectively, and finance lease obligations of $35 million and $47 million, respectively, in connection with this agreement. Consolidated VIE IMFT: Through October 31, 2019, IMFT was a VIE because all of its costs were passed to us and its other member, Intel, through product purchase agreements and because IMFT was dependent upon us or Intel for additional cash requirements. The primary activities of IMFT were driven by the constant introduction of product and process technology. Because we performed a significant majority of the technology development, we had the power to direct its key activities. We consolidated IMFT due to this power and our obligation to absorb losses and the right to receive benefits from IMFT that could have been potentially significant to it. We acquired Intel’s interest in IMFT on October 31, 2019, at which time IMFT, now known as MTU, became a wholly-owned subsidiary. (See “Equity – Noncontrolling Interest in Subsidiary.”)

Recently Adopted Accounting Standards	12 Months Ended
Recently Adopted Accounting Standards	Sep. 03, 2020
Accounting Standards Update and Change in Accounting Principle [Abstract]
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards In February 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-02 – Leases (as amended, “ASC 842”), which amends a number of aspects of lease accounting, including requiring lessees to recognize operating leases with a term greater than one year on their balance sheet as a right-of-use asset and corresponding lease liability, measured at the present value of lease payments. We adopted ASC 842 in the first quarter of 2020 under the modified retrospective method and elected to not recast prior periods. We elected the practical expedients available under the transition guidance, including but not limited to, not reassessing past lease accounting or using hindsight to evaluate lease term. In addition, we elected to not separate lease and non-lease components for real estate or gas plant leases. As a result of adopting ASC 842, we recognized $567 million for operating lease liabilities and right-of-use assets and reclassified an additional $66 million of other balances to right-of-use assets to conform to the new presentation requirements of ASC 842.

- Definition

The entire disclosure for change in accounting principle. Includes, but is not limited to, nature, reason, and method of adopting amendment to accounting standards or other change in accounting principle.

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+ Details

Recently Issued Accounting Standards	12 Months Ended
Recently Issued Accounting Standards	Sep. 03, 2020
Accounting Standards Update and Change in Accounting Principle [Abstract]
Recently Issued Accounting Standards	Recently Issued Accounting Standards In August 2020, the FASB issued ASU 2020-06 – Debt - Debt with Conversion and Other Options and Derivatives and Hedging - Contracts in Entity’s Own Equity, which simplifies the accounting for convertible debt instruments by reducing the number of accounting models and the number of embedded conversion features that could be recognized separately from the primary contract. This ASU requires a convertible debt instrument to be accounted for as a single liability measured at its amortized cost, as long as no other features require bifurcation and recognition as derivatives. This ASU requires an entity to use the if-converted method in the diluted earnings per share calculation for convertible instruments. This ASU will be effective for us in the first quarter of 2023, with early adoption permitted beginning in the first quarter of 2022, and permits the use of either the modified retrospective or fully retrospective method of transition. We are evaluating the timing and effects of our adoption of this ASU on our financial statements. In November 2018, the FASB issued ASU 2018-18 – Collaborative Arrangements, which clarifies that certain transactions between collaborative arrangement participants should be accounted for as revenue when the collaborative arrangement participant is a customer in the context of a unit of account and precludes recognizing as revenue consideration received from a collaborative arrangement participant if the participant is not a customer. This ASU is effective for us in the first quarter of 2021 and requires retrospective adoption to the date we adopted ASC 606, which was August 31, 2018, by recognizing a cumulative-effect adjustment to the opening balance of retained earnings of the earliest annual period presented. We do not anticipate the adoption of this ASU will have a significant impact on our financial statements. In June 2016, the FASB issued ASU 2016-13 – Measurement of Credit Losses on Financial Instruments, which requires a financial asset (or a group of financial assets) measured on the basis of amortized cost to be presented at the net amount expected to be collected. This ASU requires that the income statement reflect the measurement of credit losses for newly recognized financial assets as well as the increases or decreases of expected credit losses that have taken place during the period. This ASU requires that credit losses of debt securities designated as available-for-sale be recorded through an allowance for credit losses and limits the credit loss to the amount by which fair value is below amortized cost. This ASU is effective for us in the first quarter of 2021 and requires modified retrospective adoption, with prospective adoption for debt securities for which an other-than-temporary impairment had been recognized before the effective date. We do not anticipate the adoption of this ASU will have a significant impact on our financial statements.

Cash and Investments

12 Months Ended

Sep. 03, 2020

Investments [Abstract]

Cash and Investments

Substantially all of our marketable debt and equity investments were classified as available-for-sale as of the dates noted below. Cash and equivalents and the fair values of our available-for-sale investments, which approximated amortized costs, were as follows:


	2020														2019
As of	Cash and Equivalents		Short-term Investments		Long-term Marketable Investments⁽¹⁾		Total Fair Value		Cash and Equivalents		Short-term Investments		Long-term Marketable Investments⁽¹⁾		Total Fair Value

Cash	$	3,996	$	—	$	—	$	3,996	$	2,388	$	—	$	—	$	2,388
Level 1⁽²⁾
Money market funds	1,828		—		—		1,828		3,418		—		—		3,418
Level 2⁽³⁾
Certificates of deposits	1,740		10		2		1,752		1,292		13		1		1,306
Corporate bonds	3		266		592		861		—		550		689		1,239
Government securities	6		115		243		364		36		149		232		417
Asset-backed securities	1		31		211		243		—		67		242		309
Commercial paper	50		96		—		146		18		24		—		42
	7,624		$	518	$	1,048	$	9,190	7,152		$	803	$	1,164	$	9,119
Restricted cash⁽⁴⁾	66								127
Cash, cash equivalents, and restricted cash	$	7,690							$	7,279

⁽¹⁾The maturities of long-term marketable securities range from one to four years.

⁽²⁾The fair value of Level 1 securities is measured based on quoted prices in active markets for identical assets.

⁽³⁾The fair value of Level 2 securities is measured using information obtained from pricing services, which obtain quoted market prices for similar instruments, non-binding market consensus prices that are corroborated by observable market data, or various other methodologies, to determine the appropriate value at the measurement date. We perform supplemental analysis to validate information obtained from these pricing services. No adjustments were made to the fair values indicated by such pricing information as of September 3, 2020 or August 29, 2019.

⁽⁴⁾Restricted cash is included in other noncurrent assets and primarily relates to certain government incentives received prior to being earned and for which restrictions lapse upon achieving certain performance conditions. Restricted cash as of August 29, 2019 also included amounts related to the corporate reorganization proceedings of MMJ.

Gross realized gains and losses from sales of available-for-sale securities were not significant for any period presented. As of September 3, 2020, there were no available-for-sale securities that had been in a loss position for longer than 12 months.

Receivables

12 Months Ended

Sep. 03, 2020

Receivables [Abstract]

Receivables


As of	2020		2019

Trade receivables	$	3,494	$	2,778
Income and other taxes	232		242
Other	186		175
	$	3,912	$	3,195

Inventories

12 Months Ended

Sep. 03, 2020

Inventory Disclosure [Abstract]

Inventories


As of	2020		2019

Finished goods	$	1,001	$	757
Work in process	3,854		3,825
Raw materials and supplies	752		536
	$	5,607	$	5,118

Property, Plant, and Equipment

12 Months Ended

Sep. 03, 2020

Property, Plant and Equipment [Abstract]

Property, Plant, and Equipment


As of	2020		2019

Land	$	352	$	352
Buildings	13,981		10,931
Equipment⁽¹⁾	48,525		44,051
Construction in progress⁽²⁾	1,600		1,700
Software	873		790
	65,331		57,824
Accumulated depreciation	(34,300)		(29,584)
	$	31,031	$	28,240

⁽¹⁾Included costs related to equipment not placed into service of $1.63 billion as of September 3, 2020 and $2.33 billion as of August 29, 2019.

⁽²⁾Included building-related construction, tool installation, and software costs for assets not placed into service.

Depreciation expense was $5.57 billion, $5.34 billion, and $4.66 billion for 2020, 2019, and 2018, respectively. Interest capitalized as part of the cost of property, plant, and equipment was $77 million, $103 million, and $44 million for 2020, 2019, and 2018, respectively.

We periodically assess the estimated useful lives of our property, plant, and equipment. Based on our assessment of planned technology node transitions, capital spending, and re-use rates, we revised the estimated useful lives of the existing equipment in our NAND wafer fabrication facilities and our research and development (“R&D”) facilities from five years to seven years as of the beginning of the first quarter of 2020. This revision reduced our aggregate depreciation expense by approximately $675 million in 2020, of which approximately $165 million remained capitalized in inventory as of the end of 2020. After adjusting for the effect of the reduced amount of depreciation expense remaining in inventory, the revision in estimated useful lives benefited both operating income and net income by approximately $510 million and diluted earnings per share by approximately $0.45 for 2020.

Intangible Assets and Goodwill

12 Months Ended

Sep. 03, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets and Goodwill


	2020						2019
As of	Gross Amount		Accumulated Amortization		Gross Amount		Accumulated Amortization

Product and process technology	$	616	$	(282)	$	583	$	(243)
Goodwill	1,228				1,228

In 2020, 2019, and 2018, we capitalized $73 million, $91 million, and $48 million, respectively, for product and process technology with weighted-average useful lives of 10 years, 8 years, and 10 years, respectively. In 2019, we placed $108 million of in-process R&D in service and began amortizing it on a straight-line basis over six years.

Expected amortization expense is $73 million for 2021, $57 million for 2022, $51 million for 2023, $44 million for 2024, and $24 million for 2025.

Leases

12 Months Ended

Sep. 03, 2020

Leases [Abstract]

Leases

We have finance and operating leases through which we acquire or utilize equipment and facilities in our manufacturing operations and R&D activities as well as office space and other facilities used in our SG&A functions. Our finance leases consist primarily of gas or other supply agreements that are deemed to contain embedded leases in which we effectively control the underlying gas plants or other assets used to fulfill the supply agreements. Our operating leases consist primarily of offices, other facilities, and land used in SG&A, R&D, and certain of our manufacturing operations. Certain of our operating leases include one or more options to extend the lease term for periods from one year to 10 years for real estate and one year to 30 years for land.

Certain supply or service agreements require us to exercise significant judgment to determine whether the agreement contains a lease of a right-of-use asset. Our assessment includes determining whether we or the supplier control the assets used to fulfill the supply or service agreement by identifying whether we or the supplier have the right to change the type, quantity, timing, or location of the output of the assets. Our gas supply arrangements generally are deemed to contain a lease because we have the right to substantially all of the output of the assets used to produce the supply and we have the right to change the quantity and timing of the output of those assets. In determining the lease term, we assess whether we are reasonably certain to exercise options to renew or terminate a lease, and when or whether we would exercise an option to purchase the right-of-use asset. Measuring the present value of the initial lease liability requires exercising judgment to determine the discount rate, which we base on interest rates for similar borrowings issued by entities with credit ratings similar to ours.

Short-term and variable lease expenses were not significant and are presented within operating lease costs in the table below. Sublease income was not significant in 2020. The components of lease expense are presented below:


For the year ended	2020

Finance lease cost
Amortization of right-of-use asset	$	140
Interest on lease liability	22
Operating lease cost	102
	$	264

Other information related to our leases were as follows:


For the year ended	2020

Cash flows used for operating activities
Finance leases	$	24
Operating leases⁽¹⁾	39
Cash flows used for financing activities from financing leases	248
Noncash acquisitions of right-of-use assets
Finance leases	107
Operating leases	11

⁽¹⁾Included $48 million of reimbursements received for tenant improvements.


As of	2020

Finance lease right-of-use asset (included in property, plant, and equipment)⁽¹⁾	$	426
Weighted-average remaining lease term (in years)
Finance leases	5
Operating leases	7
Weighted-average discount rate
Finance leases	4.51		%
Operating leases	2.67		%

⁽¹⁾ As of August 29, 2019, prior to our adoption of ASC 842, property, plant, and equipment included $700 million for finance leases.

Maturities of lease liabilities existing as of September 3, 2020 were as follows:


For the year ending	Finance Leases		Operating Leases

2021	$	90	$	70
2022	90		69
2023	70		65
2024	53		55
2025	38		47
2026 and thereafter	248		401
Less imputed interest	(103)		(120)
	$	486	$	587

The table above excludes any lease liabilities for leases that have been executed but have not yet commenced. As of September 3, 2020, we had such lease liabilities relating to 1) operating lease payment obligations of $148 million for the initial 10-year lease term for a building, which may, at our election, be terminated after 3 years or extended for an additional 10 years, and 2) finance lease obligations of $838 million over a weighted-average period of 15 years for gas supply arrangements deemed to contain embedded leases. We will recognize right-of-use assets and associated lease liabilities at the time such assets become available for our use.

As of August 29, 2019, prior to our adoption of ASC 842, future minimum operating lease commitments with an initial term in excess of one year were $54 million for 2020, $64 million for 2021, $63 million for 2022, $59 million for 2023, $53 million for 2024, and $459 million in 2025 and thereafter.

Leases


For the year ended	2020

Finance lease cost
Amortization of right-of-use asset	$	140
Interest on lease liability	22
Operating lease cost	102
	$	264

Other information related to our leases were as follows:


For the year ended	2020

Cash flows used for operating activities
Finance leases	$	24
Operating leases⁽¹⁾	39
Cash flows used for financing activities from financing leases	248
Noncash acquisitions of right-of-use assets
Finance leases	107
Operating leases	11

⁽¹⁾Included $48 million of reimbursements received for tenant improvements.


As of	2020

Finance lease right-of-use asset (included in property, plant, and equipment)⁽¹⁾	$	426
Weighted-average remaining lease term (in years)
Finance leases	5
Operating leases	7
Weighted-average discount rate
Finance leases	4.51		%
Operating leases	2.67		%

⁽¹⁾ As of August 29, 2019, prior to our adoption of ASC 842, property, plant, and equipment included $700 million for finance leases.

Maturities of lease liabilities existing as of September 3, 2020 were as follows:


For the year ending	Finance Leases		Operating Leases

2021	$	90	$	70
2022	90		69
2023	70		65
2024	53		55
2025	38		47
2026 and thereafter	248		401
Less imputed interest	(103)		(120)
	$	486	$	587

Accounts Payable and Accrued Expenses

12 Months Ended

Sep. 03, 2020

Payables and Accruals [Abstract]

Accounts Payable and Accrued Expenses


As of	2020		2019

Accounts payable	$	2,191	$	1,677
Property, plant, and equipment	2,374		1,782
Salaries, wages, and benefits	849		695
Income and other taxes	237		309
Other	166		163
	$	5,817	$	4,626

Debt

12 Months Ended

Sep. 03, 2020

Debt Disclosure [Abstract]

Debt


	2020																				2019
							Net Carrying Amount												Net Carrying Amount
As of	Stated Rate		Effective Rate		Principal		Current		Long-Term		Total		Principal		Current		Long-Term		Total

Finance lease obligations	N/A		4.51	%	$	486	$	76	$	410	$	486	$	591	$	223	$	368	$	591
2023 Notes	2.497	%	2.64	%	1,250		—		1,245		1,245		—		—		—		—
2024 Notes	4.640	%	4.76	%	600		—		598		598		600		—		597		597
2024 Term Loan A	1.420	%	1.47	%	1,250		62		1,186		1,248		—		—		—		—
2026 Notes	4.975	%	5.07	%	500		—		498		498		500		—		497		497
2027 Notes	4.185	%	4.27	%	900		—		895		895		900		—		895		895
2029 Notes	5.327	%	5.40	%	700		—		696		696		700		—		696		696
2030 Notes	4.663	%	4.73	%	850		—		845		845		850		—		845		845
2032D Notes	3.125	%	6.33	%	134		131		—		131		134		—		127		127
MMJ Creditor Payments	N/A		N/A		1		1		—		1		206		198		—		198
IMFT Member Debt	N/A		N/A		—		—		—		—		693		693		—		693
2025 Notes	5.500	%	5.56	%	—		—		—		—		519		—		516		516
2033F Notes	2.125	%	2.13	%	—		—		—		—		62		196		—		196
					$	6,671	$	270	$	6,373	$	6,643	$	5,755	$	1,310	$	4,541	$	5,851

As of September 3, 2020, all of our debt, other than our finance leases, are unsecured obligations that rank equally in right of payment with all of our other existing and future unsecured indebtedness and are effectively subordinated to all of our other existing and future secured indebtedness, to the extent of the value of the assets securing such indebtedness. As of September 3, 2020, Micron had $6.16 billion of unsecured debt (net of unamortized discount and debt issuance costs) that was structurally subordinated to all liabilities of its subsidiaries, including trade payables. The terms of our indebtedness generally contain cross payment default and cross acceleration provisions. Micron’s guarantees of its subsidiary debt obligations are unsecured obligations ranking equally in right of payment with all of Micron’s other existing and future unsecured indebtedness.

Senior Unsecured Notes

Our 2023 Notes, 2024 Notes, 2026 Notes, 2027 Notes, 2029 Notes, and 2030 Notes (the “Senior Unsecured Notes”) each contain covenants that, among other things, limit, in certain circumstances, our ability and/or the ability of our restricted subsidiaries (which are generally domestic subsidiaries in which we own at least 80% of the voting stock and which own principal property, as defined in the indenture governing such notes) to (1) create or incur certain liens; (2) enter into certain sale and lease-back transactions; and (3) consolidate with or merge with or into, or convey, transfer, or lease all or substantially all of our properties and assets, to another entity. These covenants are subject to a number of limitations and exceptions. Additionally, if a change of control triggering event occurs, as defined in the indentures governing our senior unsecured notes, we will be required to offer to purchase such notes at 101% of the outstanding aggregate principal amount plus accrued interest up to the purchase date.

Credit Facility

Our credit facility provides for our Revolving Credit Facility and our 2024 Term Loan A, each of which generally bears interest at a rate equal to LIBOR plus 1.25% to 2.00%, depending on our corporate credit ratings or leverage ratio. Under the terms of the credit facility, we must maintain ratios, calculated as of the last day of each fiscal quarter, of total indebtedness to adjusted EBITDA not to exceed 2.75 to 1.00 and adjusted EBITDA to net interest expense of not less than 3.50 to 1.00.

As of September 3, 2020, borrowings under the credit facility were unsecured; however, a security interest may be automatically instated upon a decline below a certain level in our corporate credit rating. If the security interest is instated, any amounts drawn under the credit agreement would be collateralized by substantially all of the assets of Micron and MSP, subject to certain permitted liens. The credit agreement contains other covenants that, among other things, limit, in certain circumstances, our ability and/or the ability of our restricted subsidiaries to (1) create or incur certain liens and enter into sale and lease-back transactions, (2) create, assume, incur, or guarantee certain additional secured indebtedness and unsecured indebtedness of our restricted subsidiaries, and (3) consolidate with or merge with or into, or convey, transfer, lease, or otherwise dispose of all or substantially all of our assets, to another entity. These covenants are subject to a number of limitations, exceptions, and qualifications.

Revolving Credit Facility: On March 13, 2020, we drew the $2.50 billion available under our Revolving Credit Facility and on April 24, 2020, we repaid the $2.50 billion. As of September 3, 2020, no amounts were outstanding under the Revolving Credit Facility and $2.50 billion was available to us. Any amounts outstanding under the Revolving Credit Facility would mature in July 2023 and we may repay amounts borrowed any time without penalty. The Revolving Credit Facility bears interest at a rate equal to LIBOR plus 1.25% based on our current corporate credit rating and leverage ratio.

2024 Term Loan A: On October 30, 2019, we drew the $1.25 billion available under our 2024 Term Loan A credit facility. Principal payments are due annually in an amount equal to 5.0% of the initial principal amount with the balance due at maturity in October 2024. The 2024 Term Loan A facility bears interest at a rate equal to LIBOR plus 1.25% based on our current corporate credit rating and leverage ratio.

2032D Convertible Senior Notes

Conversion Rights: Holders of the 2032D Notes may convert them under the following circumstances: (1) if the notes are called for redemption; (2) during any calendar quarter if the closing price of our common stock for at least 20 trading days in the 30 consecutive trading days ending on the last trading day of the preceding calendar quarter is more than 130% of the conversion price (approximately $12.97 per share); (3) if the trading price of the 2032D Notes is less than 98% of the product of the closing price of our common stock and the conversion rate of the notes during the period specified in the indenture; (4) if specified distributions or corporate events occur, as set forth in the indenture for the notes; or (5) at any time on or after February 1, 2032.

The closing price of our common stock exceeded 130% of the conversion price for the 2032D Notes for at least 20 trading days in the 30 consecutive trading days ending on September 30, 2020. As a result, the 2032D Notes are convertible by the holders through December 31, 2020. As of September 3, 2020, the $46.33 trading price of our common stock was higher than the conversion price of our 2032D Notes and, as a result, the aggregate conversion value of $620 million exceeded the aggregate principal amount of $134 million by $486 million. It is our current intent to settle in cash the principal amount of our 2032D Notes upon conversion. As a result, only the amounts payable in excess of the principal amounts upon conversion of our 2032D Notes are considered in diluted earnings per share under the treasury stock method. We may elect to settle any amounts in excess of the principal in cash, shares of our common stock, or a combination thereof.

Cash Redemption at Our Option: We may redeem for cash the 2032D Notes if the volume weighted average price of our common stock has been at least 130% of the conversion price (approximately $12.97 per share) for at least 20 trading days during any 30 consecutive trading day period. The redemption price will equal the principal amount plus accrued and unpaid interest. If we redeem the 2032D Notes prior to May 4, 2021, we will also pay a make-whole premium in cash equal to the present value of the remaining scheduled interest payments from the redemption date to May 4, 2021.

Cash Repurchase at the Option of the Holders: Holders of our 2032D Notes have the right to require us to repurchase for cash all or a portion of the notes on May 1, 2021. As a result, our 2032D Notes are classified as current liabilities as of September 3, 2020. Debt discount and issuance costs are amortized through the holder put date. The repurchase price would equal the principal amount plus accrued and unpaid interest. Also, upon a change in control or a termination of trading, as defined in the indenture, holders of our 2032D Notes may require us to repurchase for cash all or a portion of their notes at a repurchase price equal to the principal amount plus accrued and unpaid interest.

Other: Interest expense for all our convertible notes consisted of contractual interest of $4 million, $21 million, and $44 million for 2020, 2019, and 2018, respectively, and amortization of discount and issuance costs of $4 million, $14 million, and $32 million for 2020, 2019, and 2018, respectively. As of September 3, 2020 and August 29, 2019, the carrying amounts of the equity components of our convertible notes, which are included in additional capital, were $27 million and $29 million, respectively.

IMFT Member Debt

In connection with our purchase of Intel’s noncontrolling interest in IMFT on October 31, 2019, we extinguished the remaining IMFT Member Debt as a component of the cash consideration paid to Intel for their interest in IMFT and recognized a non-operating gain of $72 million for the difference between the $505 million of cash consideration allocated to the extinguishment of IMFT Member Debt and its $577 million carrying value. (See “Equity – Noncontrolling Interest in Subsidiary” for the cash consideration allocated to the repurchase of noncontrolling interest.) Prior to our acquisition of Intel’s interests in IMFT, IMFT repaid to Intel $116 million of IMFT Member Debt in the first quarter of 2020.

Debt Activity

The table below presents the effects of issuances, prepayments, and conversions of debt in 2020. When we receive a notice of conversion for any of our convertible notes and elect to settle in cash any amount of the conversion obligation in excess of the principal amount, the cash settlement obligations become derivative debt liabilities subject to mark-to-market accounting treatment based on the volume-weighted-average price of our common stock over a period of 20 consecutive trading days. Accordingly, at the date of our election to settle a conversion in cash, we reclassify the fair value of the equity component of the converted notes from additional capital to derivative debt liability within current debt in our consolidated balance sheet.


	Increase (Decrease) in Principal		Increase (Decrease) in Carrying Value		Increase (Decrease) in Cash		Decrease in Equity		Gain (Loss)

Issuances
Revolving Credit Facility	$	2,500	$	2,493	$	2,500	$	—	$	—
2023 Notes⁽¹⁾	1,250		1,245		1,245		—		—
2024 Term Loan A	1,250		1,248		1,248		—		—
Prepayments
Revolving Credit Facility	(2,500)		(2,493)		(2,500)		—		—
IMFT Member Debt	(693)		(693)		(621)		—		72
2025 Notes	(519)		(516)		(534)		—		(18)
Settled conversions
2033F Notes⁽²⁾	(62)		(196)		(266)		(56)		(14)
	$	1,226	$	1,088	$	1,072	$	(56)	$	40

⁽¹⁾Issued April 24, 2020 and due April 24, 2023.

⁽²⁾On March 27, 2020, we notified holders of our 2033F Notes that we would redeem all of the outstanding 2033F Notes on May 5, 2020. Holders could elect to convert these notes through May 4, 2020, at a conversion rate of 91.4808 shares of our common stock per $1,000 of principal amount. In connection with our notice, we made an irrevocable election to settle any conversions in cash. Holders converted all of the 2033F Notes and on May 5, 2020, we paid $64 million to settle the conversions.

In 2019, we recognized aggregate non-operating losses of $396 million in connection with debt prepayments, repurchases, and conversions of $1.80 billion of principal amount of notes (carrying value of $1.60 billion) for an aggregate of $2.38 billion in cash. As of August 29, 2019, an aggregate of $44 million principal amount of our 2033F Notes (with a carrying value of $179 million) had converted but not settled. These notes settled in 2020 for $192 million in cash and the effect of the settlement is included in the table above.

In 2018, we recognized aggregate non-operating losses of $385 million in connection with debt prepayments, repurchases, and conversions of $6.96 billion of principal amount of notes (carrying value of $6.93 billion) for an aggregate of $9.42 billion in cash and 4 million shares of our treasury stock. As of August 30, 2018, an aggregate of $35 million principal amount of our 2033F Notes (with a carrying value of $165 million) had converted but not settled. These notes settled in 2019 for $153 million in cash and the effect of the settlement is included in the amounts in the paragraph above.

Maturities of Notes Payable

As of September 3, 2020, maturities of notes payable were as follows:


2021	$	197
2022	63
2023	1,313
2024	662
2025	1,000
2026 and thereafter	2,950
Unamortized discounts	(28)
	$	6,157

Commitments	12 Months Ended
Commitments	Sep. 03, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments	Commitments As of September 3, 2020, we had commitments of approximately $5.2 billion for purchase obligations, a substantial majority of which will be due within one year. Purchase obligations include payments for the acquisition of property, plant, and equipment, and other goods or services of either a fixed or minimum quantity and exclude any lease payments for leases that have been executed but have not yet commenced.

Contingencies	12 Months Ended
Contingencies	Sep. 03, 2020
Loss Contingency [Abstract]
Contingencies	Contingencies We are currently a party to legal actions other than those described below arising from the normal course of business, none of which are expected to have a material adverse effect on our business, results of operations, or financial condition. Patent Matters As is typical in the semiconductor and other high-tech industries, from time to time, others have asserted, and may in the future assert, that our products or manufacturing processes infringe upon their intellectual property rights. On August 12, 2014, MLC Intellectual Property, LLC filed a patent infringement action against Micron in the U.S. District Court for the Northern District of California. The complaint alleges that Micron infringes a single U.S. patent and seeks damages, attorneys’ fees, and costs. On November 21, 2014, Elm 3DS Innovations, LLC (“Elm”) filed a patent infringement action against Micron; Micron Semiconductor Products, Inc.; and Micron Consumer Products Group, Inc. in the U.S. District Court for the District of Delaware. On March 27, 2015, Elm filed an amended complaint against the same entities. The amended complaint alleges that unspecified semiconductor products of ours that incorporate multiple stacked die infringe 13 U.S. patents and seeks damages, attorneys’ fees, and costs. On December 15, 2014, Innovative Memory Solutions, Inc. (“IMS”) filed a patent infringement action against Micron in the U.S. District Court for the District of Delaware. The complaint alleges that a variety of our NAND products infringe eight U.S. patents and seeks damages, attorneys’ fees, and costs. On August 31, 2018, Micron was served with a complaint filed by IMS in Shenzhen Intermediate People’s Court in Guangdong Province, China. On November 12, 2019, IMS filed an amended complaint in the same court. The amended complaint alleges that certain of our NAND flash products infringe a Chinese patent. The complaint seeks an order requiring Micron to stop manufacturing, using, selling, and offering for sale the accused products in China, and to pay damages and costs of 21 million Chinese yuan. On August 4, 2020, the China National Intellectual Property Administration ruled invalid each of the asserted claims in the Chinese patent matter. On August 17, 2020, IMS withdrew its complaint filed in Shenzhen Intermediate People’s Court. On March 19, 2018, Micron Semiconductor (Xi’an) Co., Ltd. (“MXA”) was served with a patent infringement complaint filed by Fujian Jinhua Integrated Circuit Co., Ltd. (“Jinhua”) in the Fuzhou Intermediate People’s Court in Fujian Province, China (the “Fuzhou Court”). On April 3, 2018, Micron Semiconductor (Shanghai) Co. Ltd. (“MSS”) was served with the same complaint. The complaint alleges that MXA and MSS infringe a Chinese patent by manufacturing and selling certain Crucial DDR4 DRAM modules. The complaint seeks an order requiring MXA and MSS to destroy inventory of the accused products and equipment for manufacturing the accused products in China; to stop manufacturing, using, selling, and offering for sale the accused products in China; and to pay damages of 98 million Chinese yuan plus court fees incurred. On March 21, 2018, MXA was served with a patent infringement complaint filed by United Microelectronics Corporation (“UMC”) in the Fuzhou Court. On April 3, 2018, MSS was served with the same complaint. The complaint alleges that MXA and MSS infringe a Chinese patent by manufacturing and selling certain Crucial DDR4 DRAM modules. The complaint seeks an order requiring MXA and MSS to destroy inventory of the accused products and equipment for manufacturing the accused products in China; to stop manufacturing, using, selling, and offering for sale the accused products in China; and to pay damages of 90 million Chinese yuan plus court fees incurred. On April 3, 2018, MSS was served with another patent infringement complaint filed by Jinhua and two additional complaints filed by UMC in the Fuzhou Court. The three additional complaints allege that MSS infringes three Chinese patents by manufacturing and selling certain Crucial MX300 SSDs and certain GDDR5 memory chips. The two complaints filed by UMC each seek an order requiring MSS to destroy inventory of the accused products and equipment for manufacturing the accused products in China; to stop manufacturing, using, selling, and offering for sale the accused products in China; and to pay damages for each complaint of 90 million Chinese yuan plus court fees incurred. The complaint filed by Jinhua seeks an order requiring MSS to destroy inventory of the accused products and equipment for manufacturing the accused products in China; to stop manufacturing, using, selling, and offering for sale the accused products in China; and to pay damages of 98 million Chinese yuan plus court fees incurred. On October 9, 2018, UMC withdrew its complaint that alleged MSS infringed a Chinese patent by manufacturing and selling certain GDDR5 memory chips. On July 5, 2018, MXA and MSS were notified that the Fuzhou Court granted a preliminary injunction against those entities that enjoins them from manufacturing, selling, or importing certain Crucial and Ballistix-branded DRAM modules and solid-state drives in China. The affected products made up slightly more than 1% of our annualized revenue in 2018. We are complying with the ruling and have requested the Fuzhou Court to reconsider or stay its decision. On May 4, 2020, Flash-Control, LLC (“Flash-Control”) filed a patent infringement action against Micron in the U.S. District Court for the Western District of Texas. The complaint alleges that four U.S. patents are infringed by unspecified DDR4 SDRAM, NVRDIMM, NVDIMM, 3D XPoint, and/or SSD products that incorporate memory controllers and flash memory. The complaint seeks damages, attorneys’ fees, and costs. Among other things, the above lawsuits pertain to substantially all of our DRAM, NAND, and other memory and storage products we manufacture, which account for substantially all of our revenue. Qimonda On January 20, 2011, Dr. Michael Jaffé, administrator for Qimonda’s insolvency proceedings, filed suit against Micron and Micron Semiconductor B.V. (“Micron B.V.”), in the District Court of Munich, Civil Chamber. The complaint seeks to void, under Section 133 of the German Insolvency Act, a share purchase agreement between Micron B.V. and Qimonda signed in fall 2008, pursuant to which Micron B.V. purchased substantially all of Qimonda’s shares of Inotera (the “Inotera Shares”), representing approximately 18% of Inotera’s outstanding shares at that time, and seeks an order requiring us to re-transfer those shares to the Qimonda estate. The complaint also seeks, among other things, to recover damages for the alleged value of the joint venture relationship with Inotera and to terminate, under Sections 103 or 133 of the German Insolvency Code, a patent cross-license between us and Qimonda entered into at the same time as the share purchase agreement. Following a series of hearings with pleadings, arguments, and witnesses on behalf of the Qimonda estate, on March 13, 2014, the court issued judgments: (1) ordering Micron B.V. to pay approximately $1 million in respect of certain Inotera Shares sold in connection with the original share purchase; (2) ordering Micron B.V. to disclose certain information with respect to any Inotera Shares sold by it to third parties; (3) ordering Micron B.V. to disclose the benefits derived by it from ownership of the Inotera Shares, including in particular, any profits distributed on the Inotera Shares and all other benefits; (4) denying Qimonda’s claims against Micron for any damages relating to the joint venture relationship with Inotera; and (5) determining that Qimonda’s obligations under the patent cross-license agreement are canceled. In addition, the court issued interlocutory judgments ordering, among other things: (1) that Micron B.V. transfer to the Qimonda estate the Inotera Shares still owned by Micron B.V. and pay to the Qimonda estate compensation in an amount to be specified for any Inotera Shares sold to third parties; and (2) that Micron B.V. pay the Qimonda estate as compensation an amount to be specified for benefits derived by Micron B.V. from ownership of the Inotera Shares. The interlocutory judgments had no immediate, enforceable effect and Micron, accordingly, has been able to continue to operate with full control of the Inotera Shares subject to further developments in the case. On April 17, 2014, Micron and Micron B.V. filed a notice of appeal with the German Appeals Court challenging the District Court’s decision. After opening briefs, the Appeals Court held a hearing on the matter on July 9, 2015, and thereafter appointed an independent expert to perform an evaluation of Dr. Jaffé’s claims that the amount Micron paid for Qimonda was less than fair market value. On January 25, 2018, the court-appointed expert issued a report concluding that the amount paid by Micron was within an acceptable fair-value range. The Appeals Court held a subsequent hearing on April 30, 2019, and on May 28, 2019, the Appeals Court remanded the case to the expert for supplemental expert opinion. On March 31, 2020, the expert presented a revised opinion to the Appeals Court which reaffirmed the earlier view that the amount paid by Micron was still within an acceptable range of fair value. Antitrust Matters On April 27, 2018, a complaint was filed against Micron and other DRAM suppliers in the U.S. District Court for the Northern District of California. Subsequently, two substantially identical cases were filed in the same court. The lawsuits purported to be on behalf of a nationwide class of indirect purchasers of DRAM products. On September 3, 2019, the District Court granted Micron’s motion to dismiss and allowed plaintiffs the opportunity to file a consolidated, amended complaint. On October 28, 2019, the plaintiffs filed a consolidated amended complaint that purports to be on behalf of a nationwide class of indirect purchasers of DRAM products. The amended complaint asserts claims based on alleged price-fixing of DRAM products under federal and state law during the period from June 1, 2016 to at least February 1, 2018, and seeks treble monetary damages, costs, interest, attorneys’ fees, and other injunctive and equitable relief. On June 26, 2018, a complaint was filed against Micron and other DRAM suppliers in the U.S. District Court for the Northern District of California. Subsequently, four substantially identical cases were filed in the same court. On October 28, 2019, the plaintiffs filed a consolidated, amended complaint. The consolidated complaint purports to be on behalf of a nationwide class of direct purchasers of DRAM products. The consolidated complaint asserts claims based on alleged price-fixing of DRAM products under federal and state law during the period from June 1, 2016 through at least February 1, 2018, and seeks treble monetary damages, costs, interest, attorneys’ fees, and other injunctive and equitable relief. Additionally, six cases have been filed in the following Canadian courts: Superior Court of Quebec, the Federal Court of Canada, the Ontario Superior Court of Justice, and the Supreme Court of British Columbia. The substantive allegations in these cases are similar to those asserted in the cases filed in the United States. On May 15, 2018, the Chinese State Administration for Market Regulation (“SAMR”) notified Micron that it was investigating potential collusion and other anticompetitive conduct by DRAM suppliers in China. On May 31, 2018, SAMR made unannounced visits to our sales offices in Beijing, Shanghai, and Shenzhen to seek certain information as part of its investigation. We are cooperating with SAMR in its investigation. Securities Matters On January 23, 2019, a complaint was filed against Micron and two of our officers, Sanjay Mehrotra and David Zinsner, in the U.S. District Court for the Southern District of New York. The lawsuit purported to be brought on behalf of a class of purchasers of our stock during the period from June 22, 2018 through November 19, 2018. Subsequently two substantially similar cases were filed in the same court adding one of our former officers, Ernie Maddock, as a defendant and alleging a class action period from September 26, 2017 through November 19, 2018. The separate cases were joined, and a consolidated amended complaint was filed on June 15, 2019. The consolidated amended complaint alleged that defendants committed securities fraud through misrepresentations and omissions about purported anticompetitive behavior in the DRAM industry and sought compensatory and punitive damages, fees, interest, costs, and other appropriate relief. On October 2, 2019, the parties submitted a joint stipulation to dismiss the complaint. The Court approved the stipulation and dismissed the complaint on October 3, 2019. On March 5, 2019, a derivative complaint was filed by a shareholder in the U.S. District Court for the District of Delaware, based on similar allegations to the securities fraud cases, allegedly on behalf of and for the benefit of Micron, against certain current and former officers and directors of Micron for alleged breaches of their fiduciary duties and other violations of law. The complaint seeks damages, fees, interest, costs, and other appropriate relief. Similar shareholder derivative complaints were subsequently filed in the U.S. District Court for the District of Delaware and the U.S. District Court for the District of Idaho. On November 20, 2019, the plaintiff in the second action filed in the U.S. District Court for the District of Delaware voluntarily dismissed his complaint. On November 21, 2019, the plaintiff voluntarily dismissed his complaint that was filed in the U.S. District Court for the District of Idaho. Other On December 5, 2017, Micron filed a complaint against UMC and Jinhua in the U.S. District Court for the Northern District of California. The complaint alleges that UMC and Jinhua violated the Defend Trade Secrets Act, the civil provisions of the Racketeer Influenced and Corrupt Organizations Act, and California’s Uniform Trade Secrets Act by misappropriating Micron’s trade secrets and other misconduct. Micron’s complaint seeks damages, restitution, disgorgement of profits, injunctive relief, and other appropriate relief. On June 13, 2019, current Micron employee Chris Manning filed a putative class action lawsuit on behalf of Micron employees subject to the Idaho Wage Claim Act who earned a performance-based bonus after the conclusion of 2018 whose performance rating was calculated based upon a mandatory percentage distribution range of performance ratings. On July 12, 2019, Manning and three other Company employees filed an amended complaint as putative class action representatives. On behalf of themselves and the putative class, Manning and the three other plaintiffs assert claims for violation of the Idaho Wage Claim Act, breach of contract, breach of the covenant of good faith and fair dealing, and fraud. On June 24, 2020, the court entered judgment in favor of Micron based on the statute of limitations, and the plaintiffs filed a notice of appeal on July 23, 2020. On July 31, 2020, Micron and Intel entered into a binding arbitration agreement under which the parties agreed to present to an arbitral panel various financial disputes related to the IMFT joint venture between Micron and Intel, which ended October 31, 2019, and to other agreements relating to the joint development, production, and sale of non-volatile memory products. Each party alleges that the other owes damages relating to allegations of breach of one or more agreements. In the normal course of business, we are a party to a variety of agreements pursuant to which we may be obligated to indemnify another party. It is not possible to predict the maximum potential amount of future payments under these types of agreements due to the conditional nature of our obligations and the unique facts and circumstances involved in each particular agreement. Historically, our payments under these types of agreements have not had a material adverse effect on our business, results of operations, or financial condition. We are unable to predict the outcome of the patent matters, Qimonda matter, antitrust matters, securities matter, binding arbitration with Intel, or any other matters noted above, and therefore cannot estimate the range of possible loss. A determination that our products or manufacturing processes infringe the intellectual property rights of others or entering into a license agreement covering such intellectual property could result in significant liability and/or require us to make material changes to our products and/or manufacturing processes. Any of the foregoing, as well as the resolution of any other legal matter noted above, could have a material adverse effect on our business, results of operations, or financial condition.

Redeemable Noncontrolling Interest	12 Months Ended
Redeemable Noncontrolling Interest	Sep. 03, 2020
Noncontrolling Interest [Abstract]
Redeemable Noncontrolling Interest	Redeemable Noncontrolling Interest Redeemable noncontrolling interest as of August 29, 2019 reflected 100,000 preferred shares authorized and issued by Micron Semiconductor Asia Operations Pte. Ltd. (“MSAO”) in 2018 for net proceeds of $97 million. Holders of the preferred shares were entitled to receive a cumulative dividend of 7.75% per annum. On August 31, 2020, we redeemed the shares for $102 million.

Equity

12 Months Ended

Sep. 03, 2020

Equity [Abstract]

Equity

Micron Shareholders’ Equity

Common Stock Repurchases: Our Board of Directors has authorized the discretionary repurchase of up to $10 billion of our outstanding common stock beginning in 2019. We may purchase shares through open-market purchases, block trades, privately-negotiated transactions, derivative transactions, and/or pursuant to Rule 10b5-1 trading plans. The repurchase authorization has no expiration date, does not obligate us to acquire any common stock, and is subject to market conditions and our ongoing determination of the best use of available cash. We repurchased 3.6 million shares of our common stock for $176 million in 2020 and 66.4 million shares for $2.66 billion in 2019. Through September 3, 2020, we had repurchased an aggregate of $2.84 billion under the authorization. The repurchased shares were recorded as treasury stock.

Common Stock Issuance: In 2018, we issued 34 million shares of our common stock for $41.00 per share in a public offering, for net proceeds of $1.36 billion, net of underwriting fees and other offering costs.

Capped Calls: In 2020, we share-settled all outstanding capped calls upon their expiration and received an aggregate of 1.7 million shares of our common stock, equal to a value of $98 million. In 2018, we share-settled certain other capped calls upon their expirations, and received 9.2 million shares, equal to a value of $429 million. Amounts received upon settlement were based on volume-weighted-average trading prices of our stock at the expiration dates. The shares received in all periods were recorded as treasury stock.

Accumulated Other Comprehensive Income: Changes in accumulated other comprehensive income by component for the year ended September 3, 2020 were as follows:


	Gains (Losses) on Derivative Instruments		Pension Liability Adjustments		Unrealized Gains (Losses) on Investments		Cumulative Foreign Currency Translation Adjustment		Total

As of August 29, 2019	$	(1)	$	4	$	7	$	(1)	$	9
Other comprehensive income before reclassifications	51		25		8		—		84
Amount reclassified out of accumulated other comprehensive income	4		(3)		(6)		—		(5)
Tax effects	(9)		(7)		(1)		—		(17)
Other comprehensive income (loss)	46		15		1		—		62
As of September 3, 2020	$	45	$	19	$	8	$	(1)	$	71

Noncontrolling Interest in Subsidiary


	2020						2019
As of	Balance		Percentage		Balance		Percentage

IMFT	$	—	—	%	$	889	49	%

On October 31, 2019, we purchased Intel’s noncontrolling interest in IMFT, now known as MTU, and IMFT Member Debt for $1.25 billion. In connection therewith, we recognized a $160 million adjustment to equity for the difference between the $744 million of cash consideration allocated to Intel’s noncontrolling interest and its $904 million carrying value. (See “Debt” for the cash consideration allocated to, and extinguishment of, IMFT Member Debt.)

IMFT manufactured semiconductor products exclusively for its members under a long-term supply agreement at prices approximating cost. In 2018, IMFT discontinued production of NAND and subsequent to that time manufactured 3D XPoint memory. IMFT sales to Intel were $158 million through the date of our purchase of Intel’s noncontrolling interest in 2020, $731 million in 2019, and $507 million in 2018.

Fair Value Measurements

12 Months Ended

Sep. 03, 2020

Fair Value Disclosures [Abstract]

Fair Value Measurements

The estimated fair values and carrying values of our outstanding debt instruments (excluding the carrying value of equity components of our convertible notes) were as follows:


	2020						2019
As of	Fair Value		Carrying Value		Fair Value		Carrying Value

Notes and MMJ Creditor Payments	$	6,710	$	6,026	$	5,194	$	4,937
Convertible notes	634		131		852		323

The fair values of our convertible notes were determined based on Level 2 inputs, including the trading price of our convertible notes when available, our stock price, and interest rates based on similar debt issued by parties with credit ratings similar to ours. The fair values of our other debt instruments were estimated based on Level 2 inputs, including discounted cash flows, the trading price of our notes when available, and interest rates based on similar debt issued by parties with credit ratings similar to ours.

Other operating (income) expense, net included unrealized losses primarily from semiconductor equipment held for sale of $71 million and $82 million in 2020 and 2019, respectively. The fair values were based on quotations obtained from equipment dealers, which consider the remaining useful life and configuration of the equipment (Level 3). Assets held for sale were not significant as of the end of either period reported.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Derivative Instruments

12 Months Ended

Sep. 03, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Instruments


	Gross Notional Amount		Fair Value of
							Assets⁽¹⁾	Liabilities⁽²⁾

As of September 3, 2020
Derivative instruments with hedge accounting designation
Cash flow currency hedges	$	1,845	$	41	$	(2)

Derivative instruments without hedge accounting designation
Non-designated currency hedges	1,587		4		(1)
			$	45	$	(3)

As of August 29, 2019
Derivative instruments with hedge accounting designation
Cash flow currency hedges	$	146	$	1	$	—

Derivative instruments without hedge accounting designation
Non-designated currency hedges	1,871		1		(9)
Convertible notes settlement obligation⁽³⁾			—		(179)
			1		(188)

			$	2	$	(188)

⁽¹⁾Included in receivables – other and other noncurrent assets.

⁽²⁾Included in accounts payable and accrued expenses – other for forward contracts and in current debt for convertible notes settlement obligations.

⁽³⁾As of August 29, 2019, the notional amount of settlement obligation for notes that had been converted was 4 million shares of our common stock.

Derivative Instruments with Hedge Accounting Designation

We utilize currency forward contracts that generally mature within two years to hedge our exposure to changes in currency exchange rates. Currency forward contracts are measured at fair value based on market-based observable inputs including currency exchange spot and forward rates, interest rates, and credit-risk spreads (Level 2). We do not use derivative instruments for speculative purposes.

Cash Flow Hedges: We utilize cash flow hedges for our exposure from changes in currency exchange rates for certain capital expenditures and manufacturing costs. We recognized gains of $51 million and losses of $3 million and $17 million for 2020, 2019, and 2018, respectively, in accumulated other comprehensive income from cash flow hedges. The reclassifications from accumulated other comprehensive income to earnings were not significant in 2020, 2019, or 2018. As of September 3, 2020, we expect to reclassify $24 million of pre-tax gains related to cash flow hedges from accumulated other comprehensive income into earnings in the next 12 months.

Derivative Instruments without Hedge Accounting Designation

Currency Derivatives: We generally utilize a rolling hedge strategy with currency forward contracts that mature within three months to hedge our exposures of monetary assets and liabilities from changes in currency exchange rates. At the end of each reporting period, monetary assets and liabilities denominated in currencies other than the U.S. dollar are remeasured into U.S. dollars and the associated outstanding forward contracts are marked to market. Currency forward contracts are valued at fair values based on the middle of bid and ask prices of dealers or exchange quotations (Level 2). Realized and unrealized gains and losses on derivative instruments without hedge accounting designation as well as the changes in the underlying monetary assets and liabilities from changes in currency exchange rates are included in other non-operating income (expense), net. For derivative instruments

without hedge accounting designation, we recognized gains of $21 million, and losses of $32 million and $38 million for 2020, 2019, and 2018, respectively.

Convertible Notes Settlement Obligations: For settlement obligations associated with our convertible notes subject to mark-to-market accounting treatment, the fair values of the underlying derivative settlement obligations were initially determined using the Black-Scholes option valuation model (Level 2), which requires inputs of stock price, expected stock-price volatility, estimated option life, risk-free interest rate, and dividend rate. The subsequent measurement amounts were based on the volume-weighted-average trading price of our common stock (Level 2). (See “Debt.”) We recognized losses of $14 million, $58 million, and $124 million for 2020, 2019 and 2018, respectively, in other non-operating income (expense), net for the changes in fair value of the derivative settlement obligations.

Derivative Counterparty Credit Risk and Master Netting Arrangements

Our derivative instruments expose us to credit risk to the extent counterparties may be unable to meet the terms of the contracts. Our maximum exposure to loss due to credit risk if counterparties fail completely to perform according to the terms of the contracts would generally equal the fair value of assets for these contracts as listed in the tables above. We seek to mitigate such risk by limiting our counterparties to major financial institutions and by spreading risk across multiple financial institutions. As of September 3, 2020 and August 29, 2019, amounts netted under our master netting arrangements were not material.

Equity Plans

12 Months Ended

Sep. 03, 2020

Share-based Payment Arrangement [Abstract]

Equity Plans

As of September 3, 2020, 90 million shares of our common stock were available for future awards under our equity plans, including 26 million shares approved for issuance under our employee stock purchase plan (“ESPP”).

Restricted Stock and Restricted Stock Units (“Restricted Stock Awards”)

As of September 3, 2020, there were 17 million shares of Restricted Stock Awards outstanding, 15 million of which contained only service conditions. For service-based Restricted Stock Awards, restrictions generally lapse in one-fourth or one-third increments during each year of employment after the grant date. Restrictions lapse on Restricted Stock granted in 2020 with performance or market conditions over a three-year period if conditions are met. At the end of the performance period, the number of actual shares to be awarded will vary between 0% and 200% of target amounts, depending upon the achievement level. Restricted Stock Awards activity for 2020 is summarized as follows:


	Number of Shares	Weighted-Average Grant Date Fair Value Per Share

Outstanding as of August 29, 2019	16	$	34.72
Granted	8	46.44
Restrictions lapsed	(6)	29.34
Canceled	(1)	40.59
Outstanding as of September 3, 2020	17	42.13


For the year ended	2020		2019		2018

Restricted stock award shares granted	8		9		4
Weighted-average grant-date fair value per share	$	46.44	$	41.11	$	42.48
Aggregate vesting-date fair value of shares vested	$	294	$	248	$	259

Employee Stock Purchase Plan

Our ESPP was offered to substantially all employees beginning in August 2018 and permits eligible employees to purchase shares of our common stock through payroll deductions of up to 10% of their eligible compensation, subject to certain limitations. The purchase price of the shares under the ESPP equals 85% of the lower of the fair market value of our common stock on either the first or last day of each six-month offering period. Compensation expense is calculated as of the beginning of the offering period as the fair value of the employees’ purchase rights utilizing the Black-Scholes option valuation model and is recognized over the offering period. Grant-date fair value and assumptions used in the Black-Scholes option valuation model were as follows:


For the year ended	2020					2019				2018

Weighted-average grant-date fair value per share	$	14.24		$	11.60			$	14.55
Average expected life in years	0.5			0.5				0.5
Weighted-average expected volatility	45.0		%	45.0			%	43.0			%
Weighted-average risk-free interest rate	0.8		%	2.2			%	2.2			%
Expected dividend yield	0.0		%	0.0			%	0.0			%

Under the ESPP, employees purchased 3 million shares of common stock for $118 million in 2020 and 3 million shares for $95 million in 2019.

Stock Options

As of September 3, 2020, there were 7 million stock options outstanding, which are generally exercisable in increments of either one-fourth or one-third per year beginning one year from the date of grant. Stock options expire 8 years from the date of grant. In 2020, we did not grant any stock options and 5 million stock options were exercised. The total intrinsic value for options exercised was $130 million, $108 million, and $446 million in 2020, 2019, and 2018, respectively.

Stock options granted and assumptions used in the Black-Scholes option valuation model were as follows:


For the year ended		2019				2018

Stock options granted		—				2
Weighted-average grant-date fair value per share		$	19.50			$	18.65
Average expected life in years		5.4				5.5
Weighted-average expected volatility	44.0			%	44.0			%
Weighted-average risk-free interest rate	2.9			%	2.2			%
Expected dividend yield	0.0			%	0.0			%

Stock price volatility was based on an average of historical volatility and the implied volatility derived from traded options on our stock. The expected lives of options granted were based, in part, on historical experience and on the terms and conditions of the options. The risk-free interest rates utilized were based on the U.S. Treasury yield in effect at each grant date.

Stock-based Compensation Expense


For the year ended	2020		2019		2018

Stock-based compensation expense by caption
Cost of goods sold	$	139	$	102	$	83
Selling, general, and administrative	103		73		61
Research and development	86		68		54
	$	328	$	243	$	198

Stock-based compensation expense by type of award
Restricted stock awards	$	272	$	178	$	140
ESPP	39		32		3
Stock options	17		33		55
	$	328	$	243	$	198

Income tax benefits related to the tax deductions for share-based awards are recognized only upon the settlement of the related share-based awards. Income tax benefits for share-based awards were $72 million, $66 million and $158 million for 2020, 2019 and 2018, respectively. Stock-based compensation expense of $42 million and $30 million was capitalized and remained in inventory as of September 3, 2020 and August 29, 2019, respectively. As of September 3, 2020, $512 million of total unrecognized compensation costs for unvested awards, before the effect of any future forfeitures, was expected to be recognized through the fourth quarter of 2024, resulting in a weighted-average period of 1.2 years.

Employee Benefit Plans	12 Months Ended
Employee Benefit Plans	Sep. 03, 2020
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit Plans We have employee retirement plans at our U.S. and international sites. Details of the more significant plans are discussed as follows: Employee Savings Plan for U.S. Employees We have a 401(k) retirement plan under which U.S. employees may contribute up to 75% of their eligible pay, subject to Internal Revenue Service annual contribution limits, to various savings alternatives, none of which include direct investment in our stock. We match in cash eligible contributions from employees up to 5% of the employee’s annual eligible earnings. Contribution expense for the 401(k) plan was $66 million, $67 million, and $61 million in 2020, 2019, and 2018, respectively. Retirement Plans We have pension plans available to employees at various foreign sites. As of September 3, 2020, the projected benefit obligations of our plans were $202 million and plan assets were $222 million. As of August 29, 2019, the projected benefit obligations of our plans were $206 million and plan assets were $195 million. Pension expense was not material for 2020, 2019, or 2018.

- Definition

The entire disclosure for retirement benefits.

+ References

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+ Details

Revenue and Customer Contract Liabilities

12 Months Ended

Sep. 03, 2020

Revenue from Contract with Customer [Abstract]

Revenue and Customer Contract Liabilities

Revenue by technology is presented in the table below (See “Segment and Other Information” for disclosure of disaggregated revenue by market segments.):


For the year ended	2020		2019		2018

DRAM	$	14,510	$	16,841	$	22,625
NAND	6,131		5,355		6,510
Other (primarily 3D XPoint memory and NOR)	794		1,210		1,256
	$	21,435	$	23,406	$	30,391

Beginning in 2020, revenues for MCPs and SSDs, which contain both DRAM and NAND, are disaggregated into DRAM and NAND based on the relative values of each component. The amounts for 2019 and 2018 in the table above have been conformed to current period presentation.


As of	2020		2019

Contract liabilities from customer advances	$	40	$	61
Other contract liabilities	25		69
	$	65	$	130

Our contract liabilities from customer advances are for advance payments received from customers to secure product in future periods. Other contract liabilities consist of amounts received in advance of satisfying performance obligations. These balances are reported within other current liabilities and other noncurrent liabilities. Revenue recognized during 2020 from the ending balance of 2019 included $81 million from meeting performance obligations of other contract liabilities and shipments against customer advances. Contract liabilities from customer advances also decreased $22 million due to the return of an unutilized customer advance upon expiration of a contract.

Revenue is primarily recognized at a point in time when control of the promised goods is transferred to our customers in an amount that reflects the consideration we expect to be entitled to in exchange for those goods. Substantially all contracts with our customers are short-term in duration at fixed, negotiated prices with payment generally due shortly after delivery. From time to time, we have contracts with initial terms that include performance obligations that extend, in some cases, beyond one year. As of September 3, 2020, we expect future revenue related to these longer-term contracts of approximately $498 million, of which approximately 72% relates to performance obligations and product shipments we expect to satisfy within the next 12 months and 28% beyond 12 months.

As of September 3, 2020, other current liabilities included $466 million for estimates of consideration payable to customers, including estimates for pricing adjustments and returns.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

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+ Details

Research and Development	12 Months Ended
Research and Development	Sep. 03, 2020
Research and Development [Abstract]
Research and Development	Research and Development We shared the cost of certain product and process development activities with development partners, including agreements to jointly develop NAND and 3D XPoint technologies with Intel. We substantially completed our cost-sharing agreements with Intel to develop 3D NAND and 3D XPoint technology in 2019 and 2020, respectively. Our R&D expenses were reduced by $60 million and $201 million for 2019 and 2018, respectively, pursuant to reimbursements under these arrangements. Reimbursements were not significant for 2020.

Other Operating (Income) Expense, Net

12 Months Ended

Sep. 03, 2020

Other Income and Expenses [Abstract]

Other Operating (Income) Expense, Net


For the year ended	2020		2019		2018

Restructure and asset impairments	$	60	$	(29)	$	28
(Gain) loss on disposition of property, plant, and equipment	(3)		43		(96)
Other	11		35		11
	$	68	$	49	$	(57)

Restructure and asset impairments for 2020 primarily related to asset impairments and employee relocation and severance costs related to right-sizing our Lehi, Utah facility. Restructure and asset impairments for 2019 and 2018 primarily related to our continued emphasis to centralize certain key functions. In addition, in 2019, we finalized the sale of our 200mm fabrication facility in Singapore and recognized restructure gains of $128 million.

Other Non-Operating Income (Expense), Net

12 Months Ended

Sep. 03, 2020

Other Nonoperating Income (Expense) [Abstract]

Other Non-Operating Income (Expense), Net


For the year ended	2020		2019		2018

Gain (loss) on debt prepayments, repurchases, and conversions	$	40	$	(396)	$	(385)
Gain (loss) from changes in currency exchange rates	(8)		(9)		(75)
Other	28		—		(5)
	$	60	$	(405)	$	(465)

Income Taxes

12 Months Ended

Sep. 03, 2020

Income Tax Disclosure [Abstract]

Income Taxes

Our income tax (provision) benefit consisted of the following:


For the year ended	2020		2019		2018

Income (loss) before income taxes, net income (loss) attributable to noncontrolling interests, and equity in net income (loss) of equity method investees
U.S.	$	308	$	(67)	$	141
Foreign	2,675		7,115		14,166
	$	2,983	$	7,048	$	14,307

Income tax (provision) benefit
Current
U.S. federal	$	(20)	$	(36)	$	(54)
State	(2)		(2)		1
Foreign	(148)		(319)		(374)
	(170)		(357)		(427)
Deferred
U.S. federal	39		(146)		232
State	23		91		101
Foreign	(172)		(281)		(74)
	(110)		$	(336)	259

Income tax (provision) benefit	$	(280)	$	(693)	$	(168)

On December 22, 2017, the United States enacted comprehensive tax legislation, commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”), which imposed a one-time transition tax in 2018 (the “Repatriation Tax”) and, beginning in 2019, created a new minimum tax on certain foreign earnings (the “Foreign Minimum Tax”). We recognize the Foreign Minimum Tax in the period the tax is incurred.

Pursuant to SEC Staff Accounting Bulletin No. 118, measurement period adjustments in 2019 included $47 million of benefit for the Repatriation Tax, net of adjustments related to uncertain tax positions. Provisional estimates in 2018 included $1.34 billion of benefit for the release of the valuation allowance on the net deferred tax assets of our U.S. operations and $1.03 billion of provision for the Repatriation Tax, net of adjustments related to uncertain tax positions.

The table below reconciles our tax (provision) benefit based on the U.S. federal statutory rate to our effective rate:


For the year ended	2020						2019						2018

U.S. federal income tax (provision) benefit at statutory rate	$	(626)	21.0	%	$	(1,480)	21.0	%	$	(3,677)	25.7	%
Change in unrecognized tax benefits	(33)		1.1	%	(59)		0.8	%	60		(0.4)	%
Change in valuation allowance	(20)		0.7	%	(40)		0.6	%	2,079		(14.5)	%
U.S. tax on foreign operations	(14)		0.5	%	(327)		4.6	%	(20)		0.1	%
Foreign tax rate differential	253		(8.5)	%	993		(14.1)	%	2,606		(18.2)	%
Foreign derived intangible income deduction	67		(2.2)	%	—		—	%	—		—	%
Research and development tax credits	62		(2.1)	%	92		(1.3)	%	67		(0.5)	%
State taxes, net of federal benefit	23		(0.8)	%	102		(1.4)	%	(84)		0.6	%
Repatriation Tax related to the Tax Act	—		—	%	(10)		0.1	%	(1,049)		7.3	%
Remeasurement of deferred tax assets and liabilities related to the Tax Act	—		—	%	—		—	%	(179)		1.3	%
Other	8		(0.3)	%	36		(0.5)	%	29		(0.2)	%
Income tax (provision) benefit	$	(280)	9.4	%	$	(693)	9.8	%	$	(168)	1.2	%

We operate in a number of jurisdictions outside the United States, including Singapore, where we have tax incentive arrangements. These arrangements expire in whole or in part at various dates through 2034 and are conditional, in part, upon meeting certain business operations and employment thresholds. The effect of tax incentive arrangements reduced our tax provision by $215 million (benefiting our diluted earnings per share by $0.19) for 2020, by $756 million ($0.66 per diluted share) for 2019, and by $1.96 billion ($1.59 per diluted share) for 2018.

As of September 3, 2020, certain non-U.S. subsidiaries had cumulative undistributed earnings of $2.70 billion that were deemed to be indefinitely reinvested. A provision has not been recognized to the extent that distributions from such subsidiaries are subject to additional foreign withholding or state income tax. Determination of the amount of unrecognized deferred tax liabilities related to investments in these foreign subsidiaries is not practicable.

Deferred income taxes reflect the net tax effects of temporary differences between the bases of assets and liabilities for financial reporting and income tax purposes as well as carryforwards. Deferred tax assets and liabilities consist of the following:


As of	2020		2019

Deferred tax assets
Net operating loss and tax credit carryforwards	$	912	$	1,045
Accrued salaries, wages, and benefits	176		122
Operating lease liabilities	114		—
Property, plant, and equipment	—		80
Other	91		110
Gross deferred tax assets	1,293		1,357
Less valuation allowance	(294)		(277)
Deferred tax assets, net of valuation allowance	999		1,080

Deferred tax liabilities
Right-of-use assets	(95)		—
Product and process technology	(57)		(138)
Property, plant, and equipment	(50)		—
Other	(99)		(109)
Deferred tax liabilities	(301)		(247)

Net deferred tax assets	$	698	$	833

Reported as
Deferred tax assets	$	707	$	837
Deferred tax liabilities (included in other noncurrent liabilities)	(9)		(4)
Net deferred tax assets	$	698	$	833

We assess positive and negative evidence for each jurisdiction to determine whether it is more likely than not that existing deferred tax assets will be realized. As of September 3, 2020, and August 29, 2019, we had a valuation allowance of $294 million and $277 million, respectively, against our net deferred tax assets, primarily related to net operating loss carryforwards in Japan. Changes in 2020 in the valuation allowance were due to adjustments based on management’s assessment of tax credits and net operating losses that are more likely than not to be realized.

As of September 3, 2020, our net operating loss carryforward amounts and expiration periods, as reported to tax authorities, were as follows:


Year of Expiration	State		Japan		Singapore		Other		Total

2021 - 2025	$	49	$	1,224	$	—	$	20	$	1,293
2026 - 2030	313		84		—		10		407
2031 - 2035	337		—		—		1		338
2036 - 2040	30		—		—		—		30
Indefinite	1		—		621		119		741
	$	730	$	1,308	$	621	$	150	$	2,809

As of September 3, 2020, our federal and state tax credit carryforward amounts and expiration periods, as reported to tax authorities, were as follows:


Year of Tax Credit Expiration	U.S. Federal		State		Total

2021 - 2025	$	—	$	43	$	43
2026 - 2030	—		71		71
2031 - 2035	—		131		131
2036 - 2040	321		4		325
Indefinite	—		81		81
	$	321	$	330	$	651

Below is a reconciliation of the beginning and ending amount of our unrecognized tax benefits:


For the year ended	2020		2019		2018

Beginning unrecognized tax benefits	$	383	$	261	$	327
Increases related to tax positions from prior years	14		124		—
Increases related to tax positions taken in current year	27		44		68
Decreases related to tax positions from prior years	(13)		(46)		(126)
Settlements with tax authorities	—		—		(8)
Ending unrecognized tax benefits	$	411	$	383	$	261

As of September 3, 2020, gross unrecognized tax benefits were $411 million, substantially all of which would affect our effective tax rate in the future, if recognized. Amounts accrued for interest and penalties related to uncertain tax positions were not material for any period presented. The resolution of tax audits or expiration of statute of limitations could also reduce our unrecognized tax benefits. Although the timing of final resolution is uncertain, the estimated potential reduction in our unrecognized tax benefits in the next 12 months would not be material.

We and our subsidiaries file income tax returns with the U.S. federal government, various U.S. states, and various foreign jurisdictions throughout the world. We regularly engage in discussions and negotiations with tax authorities regarding tax matters, including transfer pricing, and we continue to defend any and all such claims presented. Our U.S. federal and state tax returns remain open to examination for 2016 through 2020. In addition, tax returns that remain open to examination in Japan range from the years 2014 to 2020 and in Singapore and Taiwan from 2015 to 2020. We believe that adequate amounts of taxes and related interest and penalties have been provided, and any adjustments as a result of examinations are not expected to materially adversely affect our business, results of operations, or financial condition.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References + Details

Earnings Per Share

12 Months Ended

Sep. 03, 2020

Earnings Per Share [Abstract]

Earnings Per Share


For the year ended	2020		2019		2018

Net income attributable to Micron – Basic	$	2,687	$	6,313	$	14,135
Assumed conversion of debt	(4)		(12)		—
Net income attributable to Micron – Diluted	$	2,683	$	6,301	$	14,135

Weighted-average common shares outstanding – Basic	1,110		1,114		1,152
Dilutive effect of equity plans and convertible notes	21		29		77
Weighted-average common shares outstanding – Diluted	1,131		1,143		1,229

Earnings per share
Basic	$	2.42	$	5.67	$	12.27
Diluted	2.37		5.51		11.51

Listed below are the potential common shares, as of the end of the periods shown, that could dilute basic earnings per share in the future that were not included in the computation of diluted earnings per share because to do so would have been antidilutive:


For the year ended	2020	2019	2018

Equity plans	5	8	3

Segment Information

12 Months Ended

Sep. 03, 2020

Segment Reporting [Abstract]

Segment Information

Segment and Other Information

Segment information reported herein is consistent with how it is reviewed and evaluated by our chief operating decision maker. We have the following four business units, which are our reportable segments:

Compute and Networking Business Unit (“CNBU”): Includes memory products sold into client, cloud server, enterprise, graphics, and networking markets and sales of certain 3D XPoint products.

Mobile Business Unit (“MBU”): Includes memory products sold into smartphone and other mobile-device markets.

Storage Business Unit (“SBU”): Includes SSDs and component-level solutions sold into enterprise and cloud, client, and consumer storage markets, other discrete storage products sold in component and wafer form to the removable storage market, and sales of certain 3D XPoint products.

Embedded Business Unit (“EBU”): Includes memory and storage products sold into automotive, industrial, and consumer markets.

Certain operating expenses directly associated with the activities of a specific segment are charged to that segment. Other indirect operating income and expenses are generally allocated to segments based on their respective percentage of cost of goods sold or forecasted wafer production. We do not identify or report internally our assets (other than goodwill) or capital expenditures by segment, nor do we allocate gains and losses from equity method investments, interest, other non-operating income or expense items, or taxes to segments. As of September 3, 2020 and August 29, 2019, CNBU, MBU, SBU, and EBU had goodwill of $832 million, $198 million, $101 million, and $97 million, respectively.


For the year ended	2020		2019		2018

Revenue
CNBU	$	9,184	$	9,968	$	15,252
MBU	5,702		6,403		6,579
SBU	3,765		3,826		5,022
EBU	2,759		3,137		3,479
All Other	25		72		59
	$	21,435	$	23,406	$	30,391

Operating income (loss)
CNBU	$	2,010	$	4,645	$	9,773
MBU	1,074		2,606		3,033
SBU	36		(386)		964
EBU	301		923		1,473
All Other	(2)		13		—
	3,419		7,801		15,243

Unallocated
Stock-based compensation	(328)		(243)		(198)
Restructure and asset impairments	(60)		32		(28)
Employee severance	—		(116)		—
Start-up and preproduction costs	—		(58)		—
Other	(28)		(40)		(23)
	(416)		(425)		(249)

Operating income	$	3,003	$	7,376	$	14,994

Depreciation and amortization expense included in operating income was as follows:


For the year ended	2020		2019		2018

CNBU	$	2,318	$	1,833	$	1,755
MBU	1,436		1,235		1,077
SBU	1,115		1,555		1,295
EBU	741		748		603
All Other	12		27		18
Unallocated	28		26		11
	$	5,650	$	5,424	$	4,759

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8981-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8721-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8657-108599

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8721-108599

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-URI http://asc.fasb.org/topic&trid=2134510

+ Details

Certain Concentrations

12 Months Ended

Sep. 03, 2020

Risks and Uncertainties [Abstract]

Certain Concentrations

Revenue by market segment as an approximate percent of total revenue is presented in the table below:


For the year ended	2020		2019		2018

Mobile	25	%	25	%	20	%
Client and graphics	20	%	20	%	25	%
Enterprise and cloud server	20	%	20	%	25	%
SSDs and other storage	20	%	15	%	15	%
Automotive, industrial, and consumer	15	%	15	%	10	%

Revenue from Kingston Technology Company, Inc. was 11%, 11%, and 10% of total revenue for 2020, 2019, and 2018, respectively. Revenue from Huawei Technologies Co. Ltd. was 12% of total revenue for 2019. Our sales to Kingston were included in our CNBU, MBU, and SBU segments and our sales to Huawei were included in our MBU, CNBU, SBU, and EBU segments.

We generally have multiple sources of supply for our raw materials and production equipment; however, only a limited number of suppliers are capable of delivering certain raw materials and production equipment that meet our standards and, in some cases, materials or production equipment are provided by a single supplier.

Financial instruments that potentially subject us to concentrations of credit risk consist principally of cash, money market accounts, certificates of deposit, fixed-rate debt securities, trade receivables, share repurchase, and derivative contracts. We invest through high-credit-quality financial institutions and, by policy, generally limit the concentration of credit exposure by restricting investments with any single obligor and monitoring credit risk of bank counterparties on an ongoing basis. A concentration of credit risk may exist with respect to receivables of certain customers. We perform ongoing credit evaluations of customers worldwide and generally do not require collateral from our customers. Historically, we have not experienced material losses on receivables. A concentration of risk may also exist with respect to our foreign currency hedges as the number of counterparties to our hedges is limited and the notional amounts are relatively large. We seek to mitigate such risk by limiting our counterparties to major financial institutions and through entering into master netting arrangements.

Geographic Information

12 Months Ended

Sep. 03, 2020

Segment Reporting [Abstract]

Geographic Information

Revenue based on the geographic location of our customers’ headquarters was as follows:


For the year ended	2020		2019		2018

United States	$	10,381	$	12,451	$	17,116
Taiwan	3,657		2,703		3,918
Mainland China (excluding Hong Kong)	2,337		3,595		3,607
Hong Kong	1,792		1,614		1,761
Japan	1,387		958		1,265
Other Asia Pacific	1,157		1,032		1,458
Other	724		1,053		1,266
	$	21,435	$	23,406	$	30,391

Long-lived assets by geographic area consisted of property, plant, and equipment and right-of-use assets and were as follows:


As of	2020		2019

Taiwan	$	10,516	$	9,397
Singapore	8,161		7,986
Japan	6,478		5,202
United States	5,434		5,048
China	478		370
Other	548		237
	$	31,615	$	28,240

Quarterly Financial Information

12 Months Ended

Sep. 03, 2020

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information

(in millions, except per share amounts)

(Unaudited)


2020	Fourth Quarter		Third Quarter		Second Quarter		First Quarter

Revenue	$	6,056	$	5,438	$	4,797	$	5,144
Gross margin	2,068		1,763		1,355		1,366
Operating income	1,157		888		440		518
Net income	990		805		407		508
Net income attributable to Micron	988		803		405		491

Earnings per share
Basic	$	0.89	$	0.72	$	0.37	$	0.44
Diluted	0.87		0.71		0.36		0.43


2019	Fourth Quarter		Third Quarter		Second Quarter		First Quarter

Revenue	$	4,870	$	4,788	$	5,835	$	7,913
Gross margin	1,395		1,828		2,864		4,615
Operating income	650		1,010		1,957		3,759
Net income	586		851		1,625		3,296
Net income attributable to Micron	561		840		1,619		3,293

Earnings per share
Basic	$	0.51	$	0.76	$	1.45	$	2.91
Diluted	0.49		0.74		1.42		2.81

Schedule II Valuation and Qualifying Accounts

12 Months Ended

Sep. 03, 2020

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Schedule II Valuation and Qualifying Accounts

SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS

(in millions)


	Balance at Beginning of Year		Charged (Credited) to Income Tax Provision		Currency Translation and Charges to Other Accounts		Balance at End of Year

Deferred Tax Asset Valuation Allowance
Year ended September 3, 2020	$	277	$	20	$	(3)	$	294
Year ended August 29, 2019	228		40		9		277
Year ended August 30, 2018	2,321		(2,079)		(14)		228

Significant Accounting Policies (Policies)	12 Months Ended
Significant Accounting Policies (Policies)	Sep. 03, 2020
Accounting Policies [Abstract]
Basis of Presentation	The accompanying consolidated financial statements include the accounts of Micron and our consolidated subsidiaries and have been prepared in accordance with accounting principles generally accepted in the United States of America.
Intercompany Eliminations	Intercompany balances and transactions have been eliminated in consolidation.
Reclassifications	Certain reclassifications have been made to prior period amounts to conform to current period presentation
Fiscal Period	Our fiscal year is the 52 or 53-week period ending on the Thursday closest to August 31. Fiscal 2020 contained 53 weeks and fiscal 2019 and 2018 each contained 52 weeks. Our fourth quarter of fiscal 2020 contained 14 weeks. All period references are to our fiscal periods unless otherwise indicated.
Derivative and Hedging Instruments	Derivative and Hedging Instruments We use derivative instruments to manage our exposure to changes in currency exchange rates from (1) our monetary assets and liabilities denominated in currencies other than the U.S. dollar and (2) forecasted cash flows for certain capital expenditures and manufacturing costs. Derivative instruments are measured at their fair values and recognized as either assets or liabilities. The accounting for changes in the fair value of derivative instruments is based on the intended use of the derivative and the resulting designation. For derivative instruments that are not designated for hedge accounting, gains or losses from changes in fair values are recognized in other non-operating income (expense). For derivative instruments designated as cash flow hedges, gains or losses are included as a component of accumulated other comprehensive income and reclassified into earnings in the same line items and in the same periods in which the underlying transactions affect earnings. We enter into master netting arrangements with our counterparties to mitigate credit risk in derivative hedge transactions. These master netting arrangements allow us and our counterparties to net settle amounts owed to each other. Derivative assets and liabilities that can be net settled with each counterparty have been presented in our consolidated balance sheet on a net basis.
Financial Instruments, Cash Equivalents	Cash equivalents include highly liquid short-term investments with original maturities to us of three months or less that are readily convertible to known amounts of cash.
Financial Instruments, Investments	Other investments with remaining maturities of less than one year are included in short-term investments. Investments with remaining maturities greater than one year are included in long-term marketable investments. The carrying value of investment securities sold is determined using the specific identification method.
Functional Currency	Functional Currency The U.S. dollar is the functional currency for us and all of our consolidated subsidiaries.
Goodwill	Goodwill and Non-Amortizing Intangible Assets We perform an annual impairment assessment for goodwill and non-amortizing intangible assets in our fourth quarter each year.
Non-Amortizing Intangible Assets	Goodwill and Non-Amortizing Intangible Assets We perform an annual impairment assessment for goodwill and non-amortizing intangible assets in our fourth quarter each year.
Government Incentives	Government Incentives We receive incentives from governmental entities related to expenses, assets, and other activities. Our government incentives may require that we meet or maintain specified spending levels and other operational metrics and may be subject to reimbursement if such conditions are not met or maintained. Government incentives are recorded in the financial statements in accordance with their purpose: as a reduction of expenses, a reduction of asset costs, or other income. Incentives related to specific operating activities are offset against the related expense in the period the expense is incurred. Incentives related to the acquisition or construction of fixed assets are recognized as a reduction in the carrying amounts of the related assets and reduce depreciation expense over the useful lives of the assets. Other incentives are recognized as other operating income. Government incentives received prior to being earned are recognized in current or noncurrent deferred income, whereas government incentives earned prior to being received are recognized in current or noncurrent receivables. Cash received from government incentives related to operating expenses is included as an operating activity in the statement of cash flows, whereas cash received from incentives related to the acquisition of property, plant, and equipment is included as an investing activity.
Inventories	Inventories Inventories are stated at the lower of average cost or net realizable value. Cost includes depreciation, labor, material, and overhead costs, including product and process technology costs. When net realizable value (which requires projecting future average selling prices, sales volumes, and costs to complete products in work in process inventories) is below cost, we record a charge to cost of goods sold to write down inventories to their estimated net realizable value in advance of when inventories are actually sold. We review the major characteristics of product type and markets in determining the unit of account for which we perform the lower of average cost or net realizable value analysis and categorize all inventories (including DRAM, NAND, and other memory) as a single group. We remove amounts from inventory and charge such amounts to cost of goods sold on an average cost basis.
Leases	Leases In the first quarter of 2020, we elected new accounting policies in connection with the adoption of ASC 842 – Leases. We do not recognize a right-of-use asset or a lease liability for leases with a term of 12 months or less. For real estate and gas plant leases entered into after adoption, we do not separate lease and non-lease components. Sublease income is presented within lease expense.
Product and Process Technology	Product and Process Technology Costs incurred to (1) acquire product and process technology, (2) patent technology, and (3) maintain patent technology, are capitalized and amortized on a straight-line basis over periods ranging up to 12.5 years. We capitalize a portion of costs incurred to patent technology based on historical data of patents issued as a percent of patents we file. Product and process technology costs are amortized over the shorter of (1) the estimated useful life of the technology, (2) the patent term, or (3) the term of the technology agreement. Fully-amortized assets are removed from product and process technology and accumulated amortization.
Product Warranty	Product Warranty We generally provide a limited warranty that our products are in compliance with applicable specifications existing at the time of delivery. Under our standard terms and conditions of sale, liability for certain failures of product during a stated warranty period is usually limited to repair or replacement of defective items or return of, or a credit with respect to, amounts paid for such items. Under certain circumstances, we provide more extensive limited warranty coverage than that provided under our standard terms and conditions. Our warranty obligations are not material.
Property, Plant, and Equipment	Property, Plant, and Equipment Property, plant, and equipment is stated at cost and depreciated using the straight-line method over estimated useful lives of generally 10 to 30 years for buildings, 5 to 7 years for equipment, and 3 to 5 years for software. Assets held for sale are carried at the lower of cost or estimated fair value and are included in other noncurrent assets. When property, plant, or equipment is retired or otherwise disposed, the net book value is removed and we recognize any gain or loss in results of operations. We capitalize interest on borrowings during the period of time we carry out the activities necessary to bring assets to the condition of their intended use and location. Capitalized interest becomes part of the cost of assets.
Research and Development	Research and Development Costs related to the conceptual formulation and design of products and processes are charged to R&D expense as incurred. Development of a product is deemed complete when it is qualified through reviews and tests for performance and reliability. Subsequent to product qualification, product costs are included in cost of goods sold. Amounts from cost-sharing arrangements are reflected as a reduction of R&D expense.
Revenue Recognition	Revenue Recognition Revenue is primarily recognized at a point in time when control of the promised goods is transferred to our customers in an amount that reflects the consideration we expect to be entitled to in exchange for those goods. Contracts with our customers are generally short-term in duration at fixed, negotiated prices with payment generally due shortly after delivery. We estimate a liability for returns using the expected value method based on historical rates of return. In addition, we generally offer price protection to our distributors, which is a form of variable consideration that decreases the transaction price. We use the expected value method, based on historical price adjustments and current pricing trends, to estimate the amount of revenue recognized from sales to distributors. Differences between the estimated and actual amounts are recognized as adjustments to revenue.
Stock-based Compensation	Stock-based Compensation Stock-based compensation is measured at the grant date, based on the fair value of the award, and recognized as expense under the straight-line attribution method over the requisite service period. We account for forfeitures as they occur. We issue new shares upon the exercise of stock options or conversion of share units.
Treasury Stock	Treasury Stock Treasury stock is carried at cost. When we retire our treasury stock, any excess of the repurchase price paid over par value is allocated between additional capital and retained earnings.
Use of Estimates	Use of Estimates The preparation of financial statements and related disclosures in conformity with accounting principles generally accepted in the United States of America requires our management to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues, expenses, and related disclosures. Estimates and judgments are based on historical experience, forecasted events, and various other assumptions that we believe to be reasonable under the circumstances. Estimates and judgments may differ under different assumptions or conditions. We evaluate our estimates and judgments on an ongoing basis. Actual results could differ from estimates.

Variable Interest Entities (Policies)	12 Months Ended
Variable Interest Entities (Policies)	Sep. 03, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Variable Interest Entities	We have interests in entities that are variable interest entities (“VIEs”). If we are the primary beneficiary of a VIE, we are required to consolidate it. To determine if we are the primary beneficiary, we evaluate whether we have the power to direct the activities that most significantly impact the VIE’s economic performance and the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant to the VIE. Our evaluation includes identification of significant activities and an assessment of our ability to direct those activities based on governance provisions and arrangements to provide or receive product and process technology, product supply, operations services, equity funding, financing, and other applicable agreements and circumstances. Our assessments of whether we are the primary beneficiary of our VIEs require significant assumptions and judgments.

Cash and Investments (Tables)

12 Months Ended

Sep. 03, 2020

Investments [Abstract]

Cash and Investments

Cash and equivalents and the fair values of our available-for-sale investments, which approximated amortized costs, were as follows:


	2020														2019
As of	Cash and Equivalents		Short-term Investments		Long-term Marketable Investments⁽¹⁾		Total Fair Value		Cash and Equivalents		Short-term Investments		Long-term Marketable Investments⁽¹⁾		Total Fair Value

Cash	$	3,996	$	—	$	—	$	3,996	$	2,388	$	—	$	—	$	2,388
Level 1⁽²⁾
Money market funds	1,828		—		—		1,828		3,418		—		—		3,418
Level 2⁽³⁾
Certificates of deposits	1,740		10		2		1,752		1,292		13		1		1,306
Corporate bonds	3		266		592		861		—		550		689		1,239
Government securities	6		115		243		364		36		149		232		417
Asset-backed securities	1		31		211		243		—		67		242		309
Commercial paper	50		96		—		146		18		24		—		42
	7,624		$	518	$	1,048	$	9,190	7,152		$	803	$	1,164	$	9,119
Restricted cash⁽⁴⁾	66								127
Cash, cash equivalents, and restricted cash	$	7,690							$	7,279

⁽¹⁾The maturities of long-term marketable securities range from one to four years.

⁽²⁾The fair value of Level 1 securities is measured based on quoted prices in active markets for identical assets.

Cash and equivalents and the fair values of available-for-sale investments

Cash and equivalents and the fair values of our available-for-sale investments, which approximated amortized costs, were as follows:


	2020														2019
As of	Cash and Equivalents		Short-term Investments		Long-term Marketable Investments⁽¹⁾		Total Fair Value		Cash and Equivalents		Short-term Investments		Long-term Marketable Investments⁽¹⁾		Total Fair Value

Cash	$	3,996	$	—	$	—	$	3,996	$	2,388	$	—	$	—	$	2,388
Level 1⁽²⁾
Money market funds	1,828		—		—		1,828		3,418		—		—		3,418
Level 2⁽³⁾
Certificates of deposits	1,740		10		2		1,752		1,292		13		1		1,306
Corporate bonds	3		266		592		861		—		550		689		1,239
Government securities	6		115		243		364		36		149		232		417
Asset-backed securities	1		31		211		243		—		67		242		309
Commercial paper	50		96		—		146		18		24		—		42
	7,624		$	518	$	1,048	$	9,190	7,152		$	803	$	1,164	$	9,119
Restricted cash⁽⁴⁾	66								127
Cash, cash equivalents, and restricted cash	$	7,690							$	7,279

⁽¹⁾The maturities of long-term marketable securities range from one to four years.

⁽²⁾The fair value of Level 1 securities is measured based on quoted prices in active markets for identical assets.

Receivables (Tables)

12 Months Ended

Sep. 03, 2020

Receivables [Abstract]

Schedule of Receivables


As of	2020		2019

Trade receivables	$	3,494	$	2,778
Income and other taxes	232		242
Other	186		175
	$	3,912	$	3,195

Inventories (Tables)

12 Months Ended

Sep. 03, 2020

Inventory Disclosure [Abstract]

Schedule of Inventories


As of	2020		2019

Finished goods	$	1,001	$	757
Work in process	3,854		3,825
Raw materials and supplies	752		536
	$	5,607	$	5,118

Property, Plant, and Equipment (Tables)

12 Months Ended

Sep. 03, 2020

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant, and Equipment


As of	2020		2019

Land	$	352	$	352
Buildings	13,981		10,931
Equipment⁽¹⁾	48,525		44,051
Construction in progress⁽²⁾	1,600		1,700
Software	873		790
	65,331		57,824
Accumulated depreciation	(34,300)		(29,584)
	$	31,031	$	28,240

⁽¹⁾Included costs related to equipment not placed into service of $1.63 billion as of September 3, 2020 and $2.33 billion as of August 29, 2019.

⁽²⁾Included building-related construction, tool installation, and software costs for assets not placed into service.

Intangible Assets and Goodwill (Tables)

12 Months Ended

Sep. 03, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill


	2020						2019
As of	Gross Amount		Accumulated Amortization		Gross Amount		Accumulated Amortization

Product and process technology	$	616	$	(282)	$	583	$	(243)
Goodwill	1,228				1,228

Leases (Tables)

12 Months Ended

Sep. 03, 2020

Leases [Abstract]

Schedule of Components of Lease Expense


For the year ended	2020

Finance lease cost
Amortization of right-of-use asset	$	140
Interest on lease liability	22
Operating lease cost	102
	$	264

Schedule of Other Lease Information


For the year ended	2020

Cash flows used for operating activities
Finance leases	$	24
Operating leases⁽¹⁾	39
Cash flows used for financing activities from financing leases	248
Noncash acquisitions of right-of-use assets
Finance leases	107
Operating leases	11

⁽¹⁾Included $48 million of reimbursements received for tenant improvements.


As of	2020

Finance lease right-of-use asset (included in property, plant, and equipment)⁽¹⁾	$	426
Weighted-average remaining lease term (in years)
Finance leases	5
Operating leases	7
Weighted-average discount rate
Finance leases	4.51		%
Operating leases	2.67		%

⁽¹⁾ As of August 29, 2019, prior to our adoption of ASC 842, property, plant, and equipment included $700 million for finance leases.

Schedule of Operating Lease Maturities


For the year ending	Finance Leases		Operating Leases

2021	$	90	$	70
2022	90		69
2023	70		65
2024	53		55
2025	38		47
2026 and thereafter	248		401
Less imputed interest	(103)		(120)
	$	486	$	587

Schedule of Finance Lease Maturities


For the year ending	Finance Leases		Operating Leases

2021	$	90	$	70
2022	90		69
2023	70		65
2024	53		55
2025	38		47
2026 and thereafter	248		401
Less imputed interest	(103)		(120)
	$	486	$	587

Accounts Payable and Accrued Expenses (Tables)

12 Months Ended

Sep. 03, 2020

Payables and Accruals [Abstract]

Schedule of Accounts Payable And Accrued Expenses


As of	2020		2019

Accounts payable	$	2,191	$	1,677
Property, plant, and equipment	2,374		1,782
Salaries, wages, and benefits	849		695
Income and other taxes	237		309
Other	166		163
	$	5,817	$	4,626

Debt (Tables)

12 Months Ended

Sep. 03, 2020

Debt Disclosure [Abstract]

Schedule of Debt


	2020																				2019
							Net Carrying Amount												Net Carrying Amount
As of	Stated Rate		Effective Rate		Principal		Current		Long-Term		Total		Principal		Current		Long-Term		Total

Finance lease obligations	N/A		4.51	%	$	486	$	76	$	410	$	486	$	591	$	223	$	368	$	591
2023 Notes	2.497	%	2.64	%	1,250		—		1,245		1,245		—		—		—		—
2024 Notes	4.640	%	4.76	%	600		—		598		598		600		—		597		597
2024 Term Loan A	1.420	%	1.47	%	1,250		62		1,186		1,248		—		—		—		—
2026 Notes	4.975	%	5.07	%	500		—		498		498		500		—		497		497
2027 Notes	4.185	%	4.27	%	900		—		895		895		900		—		895		895
2029 Notes	5.327	%	5.40	%	700		—		696		696		700		—		696		696
2030 Notes	4.663	%	4.73	%	850		—		845		845		850		—		845		845
2032D Notes	3.125	%	6.33	%	134		131		—		131		134		—		127		127
MMJ Creditor Payments	N/A		N/A		1		1		—		1		206		198		—		198
IMFT Member Debt	N/A		N/A		—		—		—		—		693		693		—		693
2025 Notes	5.500	%	5.56	%	—		—		—		—		519		—		516		516
2033F Notes	2.125	%	2.13	%	—		—		—		—		62		196		—		196
					$	6,671	$	270	$	6,373	$	6,643	$	5,755	$	1,310	$	4,541	$	5,851

Schedule of Debt Activity


	Increase (Decrease) in Principal		Increase (Decrease) in Carrying Value		Increase (Decrease) in Cash		Decrease in Equity		Gain (Loss)

Issuances
Revolving Credit Facility	$	2,500	$	2,493	$	2,500	$	—	$	—
2023 Notes⁽¹⁾	1,250		1,245		1,245		—		—
2024 Term Loan A	1,250		1,248		1,248		—		—
Prepayments
Revolving Credit Facility	(2,500)		(2,493)		(2,500)		—		—
IMFT Member Debt	(693)		(693)		(621)		—		72
2025 Notes	(519)		(516)		(534)		—		(18)
Settled conversions
2033F Notes⁽²⁾	(62)		(196)		(266)		(56)		(14)
	$	1,226	$	1,088	$	1,072	$	(56)	$	40

⁽¹⁾Issued April 24, 2020 and due April 24, 2023.

Schedule of Maturities of Notes Payable

As of September 3, 2020, maturities of notes payable were as follows:


2021	$	197
2022	63
2023	1,313
2024	662
2025	1,000
2026 and thereafter	2,950
Unamortized discounts	(28)
	$	6,157

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

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+ Details

Equity (Tables)

12 Months Ended

Sep. 03, 2020

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)


	Gains (Losses) on Derivative Instruments		Pension Liability Adjustments		Unrealized Gains (Losses) on Investments		Cumulative Foreign Currency Translation Adjustment		Total

As of August 29, 2019	$	(1)	$	4	$	7	$	(1)	$	9
Other comprehensive income before reclassifications	51		25		8		—		84
Amount reclassified out of accumulated other comprehensive income	4		(3)		(6)		—		(5)
Tax effects	(9)		(7)		(1)		—		(17)
Other comprehensive income (loss)	46		15		1		—		62
As of September 3, 2020	$	45	$	19	$	8	$	(1)	$	71

Schedule Of Noncontrolling Interest In Subsidiary


	2020						2019
As of	Balance		Percentage		Balance		Percentage

IMFT	$	—	—	%	$	889	49	%

Fair Value Measurements (Tables)

12 Months Ended

Sep. 03, 2020

Fair Value Disclosures [Abstract]

Estimated fair value and carrying value of debt instruments


	2020						2019
As of	Fair Value		Carrying Value		Fair Value		Carrying Value

Notes and MMJ Creditor Payments	$	6,710	$	6,026	$	5,194	$	4,937
Convertible notes	634		131		852		323

Derivative Instruments (Tables)

12 Months Ended

Sep. 03, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments


	Gross Notional Amount		Fair Value of
							Assets⁽¹⁾	Liabilities⁽²⁾

As of September 3, 2020
Derivative instruments with hedge accounting designation
Cash flow currency hedges	$	1,845	$	41	$	(2)

Derivative instruments without hedge accounting designation
Non-designated currency hedges	1,587		4		(1)
			$	45	$	(3)

As of August 29, 2019
Derivative instruments with hedge accounting designation
Cash flow currency hedges	$	146	$	1	$	—

Derivative instruments without hedge accounting designation
Non-designated currency hedges	1,871		1		(9)
Convertible notes settlement obligation⁽³⁾			—		(179)
			1		(188)

			$	2	$	(188)

⁽¹⁾Included in receivables – other and other noncurrent assets.

⁽²⁾Included in accounts payable and accrued expenses – other for forward contracts and in current debt for convertible notes settlement obligations.

⁽³⁾As of August 29, 2019, the notional amount of settlement obligation for notes that had been converted was 4 million shares of our common stock.

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

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+ Details

Equity Plans (Tables)

12 Months Ended

Sep. 03, 2020

Share-based Payment Arrangement [Abstract]

Schedule of Restricted Stock Awards Activity


	Number of Shares	Weighted-Average Grant Date Fair Value Per Share

Outstanding as of August 29, 2019	16	$	34.72
Granted	8	46.44
Restrictions lapsed	(6)	29.34
Canceled	(1)	40.59
Outstanding as of September 3, 2020	17	42.13


For the year ended	2020		2019		2018

Restricted stock award shares granted	8		9		4
Weighted-average grant-date fair value per share	$	46.44	$	41.11	$	42.48
Aggregate vesting-date fair value of shares vested	$	294	$	248	$	259

Employee Stock Purchase Plan Valuation Assumptions


For the year ended	2020					2019				2018

Weighted-average grant-date fair value per share	$	14.24		$	11.60			$	14.55
Average expected life in years	0.5			0.5				0.5
Weighted-average expected volatility	45.0		%	45.0			%	43.0			%
Weighted-average risk-free interest rate	0.8		%	2.2			%	2.2			%
Expected dividend yield	0.0		%	0.0			%	0.0			%

Stock Options Granted and Valuation Assumptions

Stock options granted and assumptions used in the Black-Scholes option valuation model were as follows:


For the year ended		2019				2018

Stock options granted		—				2
Weighted-average grant-date fair value per share		$	19.50			$	18.65
Average expected life in years		5.4				5.5
Weighted-average expected volatility	44.0			%	44.0			%
Weighted-average risk-free interest rate	2.9			%	2.2			%
Expected dividend yield	0.0			%	0.0			%

Stock-based Compensation Expense


For the year ended	2020		2019		2018

Stock-based compensation expense by caption
Cost of goods sold	$	139	$	102	$	83
Selling, general, and administrative	103		73		61
Research and development	86		68		54
	$	328	$	243	$	198

Stock-based compensation expense by type of award
Restricted stock awards	$	272	$	178	$	140
ESPP	39		32		3
Stock options	17		33		55
	$	328	$	243	$	198

Revenue and Customer Contract Liabilities (Tables)

12 Months Ended

Sep. 03, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Revenue by technology is presented in the table below (See “Segment and Other Information” for disclosure of disaggregated revenue by market segments.):


For the year ended	2020		2019		2018

DRAM	$	14,510	$	16,841	$	22,625
NAND	6,131		5,355		6,510
Other (primarily 3D XPoint memory and NOR)	794		1,210		1,256
	$	21,435	$	23,406	$	30,391

Schedule of Product Sales


For the year ended	2020		2019		2018

DRAM	$	14,510	$	16,841	$	22,625
NAND	6,131		5,355		6,510
Other (primarily 3D XPoint memory and NOR)	794		1,210		1,256
	$	21,435	$	23,406	$	30,391

Contract Liabilities


As of	2020		2019

Contract liabilities from customer advances	$	40	$	61
Other contract liabilities	25		69
	$	65	$	130

Other Operating (Income) Expense, Net (Tables)

12 Months Ended

Sep. 03, 2020

Other Income and Expenses [Abstract]

Schedule of Other Operating (Income) Expense, Net


For the year ended	2020		2019		2018

Restructure and asset impairments	$	60	$	(29)	$	28
(Gain) loss on disposition of property, plant, and equipment	(3)		43		(96)
Other	11		35		11
	$	68	$	49	$	(57)

Other Non-Operating Income (Expense), Net (Tables)

12 Months Ended

Sep. 03, 2020

Other Nonoperating Income (Expense) [Abstract]

Schedule of Other Nonoperating Income (Expense), Net


For the year ended	2020		2019		2018

Gain (loss) on debt prepayments, repurchases, and conversions	$	40	$	(396)	$	(385)
Gain (loss) from changes in currency exchange rates	(8)		(9)		(75)
Other	28		—		(5)
	$	60	$	(405)	$	(465)

Income Taxes (Tables)

12 Months Ended

Sep. 03, 2020

Income Tax Disclosure [Abstract]

Schedule of Income (loss) Before Tax and Other Items

Our income tax (provision) benefit consisted of the following:


For the year ended	2020		2019		2018

Income (loss) before income taxes, net income (loss) attributable to noncontrolling interests, and equity in net income (loss) of equity method investees
U.S.	$	308	$	(67)	$	141
Foreign	2,675		7,115		14,166
	$	2,983	$	7,048	$	14,307

Income tax (provision) benefit
Current
U.S. federal	$	(20)	$	(36)	$	(54)
State	(2)		(2)		1
Foreign	(148)		(319)		(374)
	(170)		(357)		(427)
Deferred
U.S. federal	39		(146)		232
State	23		91		101
Foreign	(172)		(281)		(74)
	(110)		$	(336)	259

Income tax (provision) benefit	$	(280)	$	(693)	$	(168)

Schedule of Components of Income Tax (Provision) Benefit

Our income tax (provision) benefit consisted of the following:


For the year ended	2020		2019		2018

Income (loss) before income taxes, net income (loss) attributable to noncontrolling interests, and equity in net income (loss) of equity method investees
U.S.	$	308	$	(67)	$	141
Foreign	2,675		7,115		14,166
	$	2,983	$	7,048	$	14,307

Income tax (provision) benefit
Current
U.S. federal	$	(20)	$	(36)	$	(54)
State	(2)		(2)		1
Foreign	(148)		(319)		(374)
	(170)		(357)		(427)
Deferred
U.S. federal	39		(146)		232
State	23		91		101
Foreign	(172)		(281)		(74)
	(110)		$	(336)	259

Income tax (provision) benefit	$	(280)	$	(693)	$	(168)

Schedule of Effective Income Tax Reconciliation

The table below reconciles our tax (provision) benefit based on the U.S. federal statutory rate to our effective rate:


For the year ended	2020						2019						2018

U.S. federal income tax (provision) benefit at statutory rate	$	(626)	21.0	%	$	(1,480)	21.0	%	$	(3,677)	25.7	%
Change in unrecognized tax benefits	(33)		1.1	%	(59)		0.8	%	60		(0.4)	%
Change in valuation allowance	(20)		0.7	%	(40)		0.6	%	2,079		(14.5)	%
U.S. tax on foreign operations	(14)		0.5	%	(327)		4.6	%	(20)		0.1	%
Foreign tax rate differential	253		(8.5)	%	993		(14.1)	%	2,606		(18.2)	%
Foreign derived intangible income deduction	67		(2.2)	%	—		—	%	—		—	%
Research and development tax credits	62		(2.1)	%	92		(1.3)	%	67		(0.5)	%
State taxes, net of federal benefit	23		(0.8)	%	102		(1.4)	%	(84)		0.6	%
Repatriation Tax related to the Tax Act	—		—	%	(10)		0.1	%	(1,049)		7.3	%
Remeasurement of deferred tax assets and liabilities related to the Tax Act	—		—	%	—		—	%	(179)		1.3	%
Other	8		(0.3)	%	36		(0.5)	%	29		(0.2)	%
Income tax (provision) benefit	$	(280)	9.4	%	$	(693)	9.8	%	$	(168)	1.2	%

Schedule of Deferred Tax Assets and Liabilities


As of	2020		2019

Deferred tax assets
Net operating loss and tax credit carryforwards	$	912	$	1,045
Accrued salaries, wages, and benefits	176		122
Operating lease liabilities	114		—
Property, plant, and equipment	—		80
Other	91		110
Gross deferred tax assets	1,293		1,357
Less valuation allowance	(294)		(277)
Deferred tax assets, net of valuation allowance	999		1,080

Deferred tax liabilities
Right-of-use assets	(95)		—
Product and process technology	(57)		(138)
Property, plant, and equipment	(50)		—
Other	(99)		(109)
Deferred tax liabilities	(301)		(247)

Net deferred tax assets	$	698	$	833

Reported as
Deferred tax assets	$	707	$	837
Deferred tax liabilities (included in other noncurrent liabilities)	(9)		(4)
Net deferred tax assets	$	698	$	833

Schedule of Net Operating Loss Carryforwards

As of September 3, 2020, our net operating loss carryforward amounts and expiration periods, as reported to tax authorities, were as follows:


Year of Expiration	State		Japan		Singapore		Other		Total

2021 - 2025	$	49	$	1,224	$	—	$	20	$	1,293
2026 - 2030	313		84		—		10		407
2031 - 2035	337		—		—		1		338
2036 - 2040	30		—		—		—		30
Indefinite	1		—		621		119		741
	$	730	$	1,308	$	621	$	150	$	2,809

Schedule of Tax Credit Carryforwards

As of September 3, 2020, our federal and state tax credit carryforward amounts and expiration periods, as reported to tax authorities, were as follows:


Year of Tax Credit Expiration	U.S. Federal		State		Total

2021 - 2025	$	—	$	43	$	43
2026 - 2030	—		71		71
2031 - 2035	—		131		131
2036 - 2040	321		4		325
Indefinite	—		81		81
	$	321	$	330	$	651

Rollforward of Unrecognized Tax Benefits

Below is a reconciliation of the beginning and ending amount of our unrecognized tax benefits:


For the year ended	2020		2019		2018

Beginning unrecognized tax benefits	$	383	$	261	$	327
Increases related to tax positions from prior years	14		124		—
Increases related to tax positions taken in current year	27		44		68
Decreases related to tax positions from prior years	(13)		(46)		(126)
Settlements with tax authorities	—		—		(8)
Ending unrecognized tax benefits	$	411	$	383	$	261

Earnings Per Share (Tables)

12 Months Ended

Sep. 03, 2020

Earnings Per Share [Abstract]

Basic and Diluted Earnings Per Share


For the year ended	2020		2019		2018

Net income attributable to Micron – Basic	$	2,687	$	6,313	$	14,135
Assumed conversion of debt	(4)		(12)		—
Net income attributable to Micron – Diluted	$	2,683	$	6,301	$	14,135

Weighted-average common shares outstanding – Basic	1,110		1,114		1,152
Dilutive effect of equity plans and convertible notes	21		29		77
Weighted-average common shares outstanding – Diluted	1,131		1,143		1,229

Earnings per share
Basic	$	2.42	$	5.67	$	12.27
Diluted	2.37		5.51		11.51

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share


For the year ended	2020	2019	2018

Equity plans	5	8	3

Segment Information (Tables)

12 Months Ended

Sep. 03, 2020

Segment Reporting [Abstract]

Schedule of Results by Segment


For the year ended	2020		2019		2018

Revenue
CNBU	$	9,184	$	9,968	$	15,252
MBU	5,702		6,403		6,579
SBU	3,765		3,826		5,022
EBU	2,759		3,137		3,479
All Other	25		72		59
	$	21,435	$	23,406	$	30,391

Operating income (loss)
CNBU	$	2,010	$	4,645	$	9,773
MBU	1,074		2,606		3,033
SBU	36		(386)		964
EBU	301		923		1,473
All Other	(2)		13		—
	3,419		7,801		15,243

Unallocated
Stock-based compensation	(328)		(243)		(198)
Restructure and asset impairments	(60)		32		(28)
Employee severance	—		(116)		—
Start-up and preproduction costs	—		(58)		—
Other	(28)		(40)		(23)
	(416)		(425)		(249)

Operating income	$	3,003	$	7,376	$	14,994

Depreciation and amortization expense included in operating income was as follows:


For the year ended	2020		2019		2018

CNBU	$	2,318	$	1,833	$	1,755
MBU	1,436		1,235		1,077
SBU	1,115		1,555		1,295
EBU	741		748		603
All Other	12		27		18
Unallocated	28		26		11
	$	5,650	$	5,424	$	4,759

Certain Concentrations (Tables)

12 Months Ended

Sep. 03, 2020

Risks and Uncertainties [Abstract]

Schedule of Market Concentration Risk


For the year ended	2020		2019		2018

Mobile	25	%	25	%	20	%
Client and graphics	20	%	20	%	25	%
Enterprise and cloud server	20	%	20	%	25	%
SSDs and other storage	20	%	15	%	15	%
Automotive, industrial, and consumer	15	%	15	%	10	%

Geographic Information (Tables)

12 Months Ended

Sep. 03, 2020

Segment Reporting [Abstract]

Geographic Revenue from Contracts with Customers based on Location of Customer Headquarters


For the year ended	2020		2019		2018

United States	$	10,381	$	12,451	$	17,116
Taiwan	3,657		2,703		3,918
Mainland China (excluding Hong Kong)	2,337		3,595		3,607
Hong Kong	1,792		1,614		1,761
Japan	1,387		958		1,265
Other Asia Pacific	1,157		1,032		1,458
Other	724		1,053		1,266
	$	21,435	$	23,406	$	30,391

Long-lived Assets by Geographic Area

Long-lived assets by geographic area consisted of property, plant, and equipment and right-of-use assets and were as follows:


As of	2020		2019

Taiwan	$	10,516	$	9,397
Singapore	8,161		7,986
Japan	6,478		5,202
United States	5,434		5,048
China	478		370
Other	548		237
	$	31,615	$	28,240

Quarterly Financial Information (Tables)

12 Months Ended

Sep. 03, 2020

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information


2020	Fourth Quarter		Third Quarter		Second Quarter		First Quarter

Revenue	$	6,056	$	5,438	$	4,797	$	5,144
Gross margin	2,068		1,763		1,355		1,366
Operating income	1,157		888		440		518
Net income	990		805		407		508
Net income attributable to Micron	988		803		405		491

Earnings per share
Basic	$	0.89	$	0.72	$	0.37	$	0.44
Diluted	0.87		0.71		0.36		0.43


2019	Fourth Quarter		Third Quarter		Second Quarter		First Quarter

Revenue	$	4,870	$	4,788	$	5,835	$	7,913
Gross margin	1,395		1,828		2,864		4,615
Operating income	650		1,010		1,957		3,759
Net income	586		851		1,625		3,296
Net income attributable to Micron	561		840		1,619		3,293

Earnings per share
Basic	$	0.51	$	0.76	$	1.45	$	2.91
Diluted	0.49		0.74		1.42		2.81

Schedule II Valuation and Qualifying Accounts (Tables)

12 Months Ended

Sep. 03, 2020

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Deferred Tax Asset Valuation Allowance


	Balance at Beginning of Year		Charged (Credited) to Income Tax Provision		Currency Translation and Charges to Other Accounts		Balance at End of Year

Deferred Tax Asset Valuation Allowance
Year ended September 3, 2020	$	277	$	20	$	(3)	$	294
Year ended August 29, 2019	228		40		9		277
Year ended August 30, 2018	2,321		(2,079)		(14)		228

Significant Accounting Policies - Product and Process Technology (Details)	12 Months Ended
	Sep. 03, 2020
Maximum
Finite-Lived Intangible Assets [Line Items]
Maximum life of product and process technology intangible assets (in years)	12 years 6 months

Significant Accounting Policies - Property, Plant and Equipment (Details)	12 Months Ended
	Sep. 03, 2020
Buildings \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant, and equipment useful life (in years)	10 years
Buildings \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant, and equipment useful life (in years)	30 years
Equipment \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant, and equipment useful life (in years)	5 years
Equipment \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant, and equipment useful life (in years)	7 years
Software \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant, and equipment useful life (in years)	3 years
Software \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant, and equipment useful life (in years)	5 years

Variable Interest Entities (Details) - USD ($) $ in Millions	Sep. 03, 2020	Aug. 29, 2019
Variable Interest Entity [Line Items]
Assets, PTI Xi'an (nonconsolidated VIE)	$ 53,678	$ 48,887
Liabilities, PTI Xi'an (nonconsolidated VIE)	14,682	12,019
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Assets, PTI Xi'an (nonconsolidated VIE)	38	50
Liabilities, PTI Xi'an (nonconsolidated VIE)	$ 35	$ 47

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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+ Details

- Definition

Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Recently Adopted Accounting Standards (Details) - USD ($) $ in Millions	Sep. 03, 2020	Aug. 30, 2019	Aug. 29, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets	$ 584	$ 567	$ 0
Operating Lease Liability	$ 587	567
Cumulative Effect, Period of Adoption, Reclassification from Other Accounts
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets		$ 66

Cash and Investments (Details) - USD ($)
$ in Millions

12 Months Ended

Sep. 03, 2020

Aug. 29, 2019

Aug. 30, 2018

Aug. 31, 2017

Debt Securities, Available-for-sale [Line Items]

Cash and Equivalents

$ 7,624

$ 7,152

Short-term Investments

518

803

Long-term Marketable Investments

^[1]

1,048

1,164

Total Fair Value

9,190

9,119

Restricted cash

^[2]

127

Cash, cash equivalents, and restricted cash

7,690

7,279

$ 6,587

$ 5,216

Value of available-for-sale debt securities in a continuous unrealized loss position 12 months or longer

$ 0

Minimum

Debt Securities, Available-for-sale [Line Items]

General maturities of long-term marketable securities (in years)

1 year

Maximum

Debt Securities, Available-for-sale [Line Items]

General maturities of long-term marketable securities (in years)

4 years

Cash

Debt Securities, Available-for-sale [Line Items]

Cash and Equivalents

$ 3,996

2,388

Short-term Investments

Long-term Marketable Investments

Total Fair Value

3,996

2,388

Money market funds | Level 1

Debt Securities, Available-for-sale [Line Items]

Cash and Equivalents

^[3]

1,828

3,418

Short-term Investments

^[3]

Long-term Marketable Investments

^[1],[3]

Total Fair Value

^[3]

1,828

3,418

Certificates of deposits | Level 2

Debt Securities, Available-for-sale [Line Items]

Cash and Equivalents

^[4]

1,740

1,292

Short-term Investments

^[4]

Long-term Marketable Investments

^[1],[4]

Total Fair Value

^[4]

1,752

1,306

Corporate bonds | Level 2

Debt Securities, Available-for-sale [Line Items]

Cash and Equivalents

^[4]

Short-term Investments

^[4]

266

550

Long-term Marketable Investments

^[1],[4]

592

689

Total Fair Value

^[4]

861

1,239

Government securities | Level 2

Debt Securities, Available-for-sale [Line Items]

Cash and Equivalents

^[4]

Short-term Investments

^[4]

115

149

Long-term Marketable Investments

^[1],[4]

243

232

Total Fair Value

^[4]

364

417

Asset-backed securities | Level 2

Debt Securities, Available-for-sale [Line Items]

Cash and Equivalents

^[4]

Short-term Investments

^[4]

Long-term Marketable Investments

^[1],[4]

211

242

Total Fair Value

^[4]

243

309

Commercial paper | Level 2

Debt Securities, Available-for-sale [Line Items]

Cash and Equivalents

^[4]

Short-term Investments

^[4]

Long-term Marketable Investments

^[1],[4]

Total Fair Value

^[4]

$ 146

$ 42

[1]	The maturities of long-term marketable securities range from one to four years.
[2]	Restricted cash is included in other noncurrent assets and primarily relates to certain government incentives received prior to being earned and for which restrictions lapse upon achieving certain performance conditions. Restricted cash as of August 29, 2019 also included amounts related to the corporate reorganization proceedings of MMJ.
[3]	The fair value of Level 1 securities is measured based on quoted prices in active markets for identical assets.
[4]	The fair value of Level 2 securities is measured using information obtained from pricing services, which obtain quoted market prices for similar instruments, non-binding market consensus prices that are corroborated by observable market data, or various other methodologies, to determine the appropriate value at the measurement date. We perform supplemental analysis to validate information obtained from these pricing services. No adjustments were made to the fair values indicated by such pricing information as of September 3, 2020 or August 29, 2019.

Receivables (Details) - USD ($) $ in Millions	Sep. 03, 2020	Aug. 29, 2019
Receivables [Abstract]
Trade receivables	$ 3,494	$ 2,778
Income and other taxes	232	242
Other	186	175
Receivables	$ 3,912	$ 3,195

Inventories (Details) - USD ($) $ in Millions	Sep. 03, 2020	Aug. 29, 2019
Inventory, Net, Items Net of Reserve Alternative [Abstract]
Finished goods	$ 1,001	$ 757
Work in process	3,854	3,825
Raw materials and supplies	752	536
Inventories	$ 5,607	$ 5,118

Property, Plant, and Equipment (Details) - USD ($)
$ in Millions

12 Months Ended

Sep. 03, 2020

Aug. 29, 2019

Aug. 30, 2018

Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization [Abstract]

Property, plant, and equipment, gross

$ 65,331

$ 57,824

Accumulated depreciation

(34,300)

(29,584)

Property, plant, and equipment, net

31,031

28,240

Depreciation [Abstract]

Depreciation expense

5,570

5,340

$ 4,660

Capitalized Interest Costs [Abstract]

Interest capitalized as part of the cost of property, plant, and equipment

103

$ 44

Land

Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization [Abstract]

Property, plant, and equipment, gross

352

Buildings

Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization [Abstract]

Property, plant, and equipment, gross

13,981

10,931

Equipment

Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization [Abstract]

Property, plant, and equipment, gross

^[1]

48,525

44,051

Equipment not placed into service

Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization [Abstract]

Property, plant, and equipment, gross

1,630

2,330

Construction in progress

Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization [Abstract]

Property, plant, and equipment, gross

^[2]

1,600

1,700

Software

Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization [Abstract]

Property, plant, and equipment, gross

$ 873

$ 790

[1]	Included costs related to equipment not placed into service of $1.63 billion as of September 3, 2020 and $2.33 billion as of August 29, 2019.
[2]	Included building-related construction, tool installation, and software costs for assets not placed into service.

Property, Plant, and Equipment - Change in Useful Life (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Sep. 03, 2020	May 28, 2020	Feb. 27, 2020	Nov. 28, 2019	Aug. 29, 2019	May 30, 2019	Feb. 28, 2019	Nov. 29, 2018	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Change in Accounting Estimate [Line Items]
Total (decrease) in depreciation from change in useful life									$ 5,570	$ 5,340	$ 4,660
Operating income	$ 1,157	$ 888	$ 440	$ 518	$ 650	$ 1,010	$ 1,957	$ 3,759	$ 3,003	$ 7,376	$ 14,994
Earnings Per Share, Diluted	$ 0.87	$ 0.71	$ 0.36	$ 0.43	$ 0.49	$ 0.74	$ 1.42	$ 2.81	$ 2.37	$ 5.51	$ 11.51
NAND and R&D Equipment [Member] \| Service Life
Change in Accounting Estimate [Line Items]
Property, plant, and equipment useful life (in years)									7 years	5 years
Total (decrease) in depreciation from change in useful life									$ (675)
Depreciation expense capitalized and remained in inventory	$ 165								165
Operating income									$ 510
Earnings Per Share, Diluted									$ 0.45

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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+ Details

Intangible Assets and Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Amortizing assets [Line Items]
Gross Amount, Product and process technology	$ 616	$ 583
Accumulated Amortization, Product and process technology	(282)	(243)
Annual amortization expense for intangible assets [Abstract]
2021	73
2022	57
2023	51
2024	44
2025	24
Goodwill	1,228	1,228
Product and process technology
Amortizing assets [Line Items]
Increase in amortizing intangible assets	$ 73	$ 91	$ 48
Product and process technology \| Weighted Average
Amortizing assets [Line Items]
Useful lives of assets placed into service	10 years	8 years	10 years
In-process R&D placed into service
Amortizing assets [Line Items]
Increase in amortizing intangible assets		$ 108
Useful lives of assets placed into service		6 years

Leases (Details) - USD ($)
$ in Millions

12 Months Ended

Sep. 03, 2020

Aug. 30, 2019

Aug. 29, 2019

Components of Lease Expense

Amortization of right-of-use asset

$ 140

Interest on lease liability

Operating lease cost

102

Total lease cost

264

Cash flows used for operating activities

Finance leases

Operating leases

^[1]

Cash flows used for financing activities

Cash flows used for financing activities from financing leases

248

Finance leases, noncash acquisitions of right-of-use assets

107

Operating leases, noncash acquisitions of right-of-use assets

Proceeds from tenant allowance

Lessee, Finance Lease, Description [Abstract]

Finance lease right-of-use assets (included in property, plant, and equipment)

$ 426

Finance leases, Weighted-average remaining lease term (in years)

5 years

Finance leases, Weighted-average discount rate

4.51%

Lessee, Operating Lease, Description [Abstract]

Operating leases, Weighted-average remaining lease term (in years)

7 years

Operating leases, Weighted-average discount rate

2.67%

Prior year net finance lease asset balance included in PPE

$ 700

Finance Lease Maturities

$ 90

248

Less imputed interest

(103)

Finance Lease Liability

486

591

Operating Lease Maturities

401

Less imputed interest

(120)

Operating Lease Liability

587

$ 567

Operating Leases Not yet Commenced

$ 148

10 years

3 years

10 years

Finance Lease Not yet Commenced

Payment obligations

$ 838

Operating Leases, Future Minimum Payments Due [Abstract]

$ 459

Lessee, Lease, Description [Line Items]

Lease term

15 years

Finance Lease Not yet Commenced

Lease term

15 years

Real Estate | Minimum

Lessee, Lease, Description [Line Items]

Operating lease renewal term

1 year

Real Estate | Maximum

Lessee, Lease, Description [Line Items]

Operating lease renewal term

10 years

Land | Minimum

Lessee, Lease, Description [Line Items]

Operating lease renewal term

1 year

Land | Maximum

Lessee, Lease, Description [Line Items]

Operating lease renewal term

30 years

[1]	Included $48 million of reimbursements received for tenant improvements.

Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Millions	Sep. 03, 2020	Aug. 29, 2019
Accounts Payable and Accrued Liabilities, Current [Abstract]
Accounts payable	$ 2,191	$ 1,677
Property, plant, and equipment	2,374	1,782
Salaries, wages, and benefits	849	695
Income and other taxes	237	309
Other	166	163
Total accounts payable and accrued expenses	$ 5,817	$ 4,626

Debt - Schedule of Long-term Debt (Details) $ / shares in Units, $ in Millions				12 Months Ended
	Apr. 24, 2020 USD ($)	Mar. 13, 2020 USD ($)	Oct. 30, 2019 USD ($)	Sep. 03, 2020 USD ($) d $ / shares	Aug. 29, 2019 USD ($)	Aug. 30, 2018 USD ($)
Long-term Debt, by Current and Noncurrent [Abstract]
Finance Lease Effective Rate (in ten thousandths)				4.51%
Current Finance Lease Obligations				$ 76	$ 223
Long-Term Finance Lease Obligations				410	368
Total Finance Lease Obligations				486	591
Total Long-term Debt				6,157
Long-term Debt and Lease Obligation [Abstract]
Principal (including finance lease obligation)				6,671	5,755
Current debt (including finance lease obligation)				270	1,310
Long-term debt (including finance lease obligation)				6,373	4,541
Total Net Carrying Amount of Debt (including finance lease obligation)				6,643	5,851
Credit Facility [Abstract]
Proceeds from issuance of debt				$ 5,000	3,550	$ 1,009
Repayments of Debt					2,380	9,420
Convertible Senior Notes [Abstract]
Share Price (in dollars per share) \| $ / shares				$ 46.33
Amortization of debt discount and other costs				$ 26	49	101
Long-term Debt, by Maturity [Abstract]
2021				197
2022				63
2023				1,313
2024				662
2025				1,000
2026 and thereafter				2,950
Unamortized discounts				(28)
Micron Technology, Inc.
Long-term Debt and Lease Obligation [Abstract]
Subordinated Debt				6,160
Revolving credit facility \| Credit Facility
Credit Facility [Abstract]
Repayments of Debt				$ 2,500
Corporate Bonds
Senior Unsecured Notes [Abstract]
Restricted Subsidiaries, Ownership Percentage by Parent (in hundredths)				80.00%
Debt Instrument, Redemption Price Percentage, Change in Control Event				101.00%
Corporate Bonds \| 2023 Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (exact percentage)				2.497%
Effective Rate (in ten thousandths)				2.64%
Principal				$ 1,250	0
Current Portion of Long-term Debt				0	0
Noncurrent Long-Term Debt				1,245	0
Total Long-term Debt				$ 1,245	0
Corporate Bonds \| 2024 Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (exact percentage)				4.64%
Effective Rate (in ten thousandths)				4.76%
Principal				$ 600	600
Current Portion of Long-term Debt				0	0
Noncurrent Long-Term Debt				598	597
Total Long-term Debt				$ 598	597
Corporate Bonds \| 2026 Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (exact percentage)				4.975%
Effective Rate (in ten thousandths)				5.07%
Principal				$ 500	500
Current Portion of Long-term Debt				0	0
Noncurrent Long-Term Debt				498	497
Total Long-term Debt				$ 498	497
Corporate Bonds \| 2027 Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (exact percentage)				4.185%
Effective Rate (in ten thousandths)				4.27%
Principal				$ 900	900
Current Portion of Long-term Debt				0	0
Noncurrent Long-Term Debt				895	895
Total Long-term Debt				$ 895	895
Corporate Bonds \| 2029 Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (exact percentage)				5.327%
Effective Rate (in ten thousandths)				5.40%
Principal				$ 700	700
Current Portion of Long-term Debt				0	0
Noncurrent Long-Term Debt				696	696
Total Long-term Debt				$ 696	696
Corporate Bonds \| 2030 Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (exact percentage)				4.663%
Effective Rate (in ten thousandths)				4.73%
Principal				$ 850	850
Current Portion of Long-term Debt				0	0
Noncurrent Long-Term Debt				845	845
Total Long-term Debt				$ 845	845
Corporate Bonds \| 2025 Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (exact percentage)				5.50%
Effective Rate (in ten thousandths)				5.56%
Principal				$ 0	519
Current Portion of Long-term Debt				0	0
Noncurrent Long-Term Debt				0	516
Total Long-term Debt				$ 0	516
Credit Facility \| Minimum
Credit Facility [Abstract]
Debt Covenant, Ratio of Adjusted EBITDA to Net Interest Expense				3.50
Credit Facility \| Maximum
Credit Facility [Abstract]
Debt Covenant, Ratio Of Total Debt To Adjusted EBITDA				2.75
Credit Facility \| LIBOR \| Minimum
Credit Facility [Abstract]
Margin on variable rate financing (in hundredths)				1.25%
Credit Facility \| LIBOR \| Maximum
Credit Facility [Abstract]
Margin on variable rate financing (in hundredths)				2.00%
Credit Facility \| Term loan facility
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (exact percentage)				1.42%
Effective Rate (in ten thousandths)				1.47%
Principal				$ 1,250	0
Current Portion of Long-term Debt				62	0
Noncurrent Long-Term Debt				1,186	0
Total Long-term Debt				$ 1,248	0
Credit Facility [Abstract]
Proceeds from issuance of debt			$ 1,250
Percentage of original principal to be repaid annually				5.00%
Credit Facility \| Term loan facility \| LIBOR
Credit Facility [Abstract]
Margin on variable rate financing (in hundredths)				1.25%
Credit Facility \| Revolving credit facility
Credit Facility [Abstract]
Proceeds from issuance of debt		$ 2,500
Repayments of Debt	$ 2,500
Available Borrowing Capacity under the Credit Facility				$ 2,500
Credit Facility \| Revolving credit facility \| LIBOR
Credit Facility [Abstract]
Margin on variable rate financing (in hundredths)				1.25%
Convertible Debt
Convertible Senior Notes [Abstract]
Contractual interest expense				$ 4	21	44
Amortization of debt discount and other costs				4	14	$ 32
Equity component of convertible debt included in additional paid in capital				$ 27	29
Convertible Debt \| 2032D Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (exact percentage)				3.125%
Effective Rate (in ten thousandths)				6.33%
Principal				$ 134	134
Current Portion of Long-term Debt				131	0
Noncurrent Long-Term Debt				0	127
Total Long-term Debt				$ 131	127
Convertible Senior Notes [Abstract]
Conversion rights, minimum number of trading days (in days) \| d				20
Conversion rights, consecutive trading period (in days) \| d				30
Conversion rights, threshold percentage of applicable conversion price (in hundredths)				130.00%
Conversion Price Per Share Threshold (dollars per share) \| $ / shares				$ 12.97
Conversion rights, maximum percentage of product of stock price and conversion rate (in hundredths)				98.00%
Conversion value of convertible notes				$ 620
Conversion Value in Excess of Principal				486
Convertible Debt \| IMFT Member Debt
Long-term Debt, by Current and Noncurrent [Abstract]
Principal				0	693
Current Portion of Long-term Debt				0	693
Noncurrent Long-Term Debt				0	0
Total Long-term Debt				$ 0	693
Convertible Debt \| 2033F Notes
Long-term Debt, by Current and Noncurrent [Abstract]
Stated Rate (exact percentage)				2.125%
Effective Rate (in ten thousandths)				2.13%
Principal				$ 0	62
Current Portion of Long-term Debt				0	196
Noncurrent Long-Term Debt				0	0
Total Long-term Debt				0	196
MMJ Creditor Payments
Long-term Debt, by Current and Noncurrent [Abstract]
Principal				1	206
Current Portion of Long-term Debt				1	198
Noncurrent Long-Term Debt				0	0
Total Long-term Debt				$ 1	$ 198

Debt - Debt Activity (Details)
shares in Millions, $ in Millions

2 Months Ended

3 Months Ended

12 Months Ended

May 05, 2020

USD ($)

Apr. 24, 2020

USD ($)

Oct. 31, 2019

USD ($)

Oct. 30, 2019

USD ($)

Nov. 28, 2019

USD ($)

Nov. 29, 2018

USD ($)

Sep. 03, 2020

USD ($)

Aug. 29, 2019

USD ($)

Aug. 30, 2018

USD ($)

Extinguishment of Debt [Line Items]

Increase (Decrease) Principal

$ 1,226

Decrease in Principal

$ (1,800)

$ (6,960)

Increase (Decrease) in Carrying Value

1,088

(1,600)

(6,930)

(Decrease) in Cash - Prepayments and Conversions

(2,380)

(9,420)

Increase (Decrease) in Cash

1,072

Decrease in Equity

(56)

(515)

(2,243)

Gain (Loss) on debt prepayments, repurchases, and conversions

(396)

$ (385)

Current debt

270

1,310

Treasury Stock Reissued in consideration for Convertible Note Repurchases | shares

Credit Facility | Revolving credit facility

Extinguishment of Debt [Line Items]

Decrease in Principal

(2,500)

Increase (Decrease) in Carrying Value

(2,493)

(Decrease) in Cash - Prepayments and Conversions

(2,500)

Gain (Loss) on debt prepayments, repurchases, and conversions

$ 0

Convertible Debt

Extinguishment of Debt [Line Items]

Derivative, Term of Contract (in consecutive trading days)

20 days

Convertible Debt | IMFT Member Debt

Extinguishment of Debt [Line Items]

Decrease in Principal

$ (577)

$ (116)

$ (693)

Increase (Decrease) in Carrying Value

(693)

(Decrease) in Cash - Prepayments and Conversions

(505)

$ (116)

(621)

Gain (Loss) on debt prepayments, repurchases, and conversions

$ 72

Convertible Debt | 2033F Notes

Extinguishment of Debt [Line Items]

Decrease in Principal

(62)

Increase (Decrease) in Carrying Value

(196)

(Decrease) in Cash - Prepayments and Conversions

$ (64)

$ (192)

$ (153)

(266)

Decrease in Equity

(56)

Gain (Loss) on debt prepayments, repurchases, and conversions

(14)

Conversion Ratio (shares per $1,000)

91.4808

Convertible Debt | 2033F Notes | Conversions not settled

Extinguishment of Debt [Line Items]

Principal amount of settlement obligations to be settled in cash in a future period

$ 35

Current debt

$ 179

$ 165

Corporate Bonds | 2025 Notes

Extinguishment of Debt [Line Items]

Decrease in Principal

(519)

Increase (Decrease) in Carrying Value

(516)

(Decrease) in Cash - Prepayments and Conversions

(534)

Gain (Loss) on debt prepayments, repurchases, and conversions

(18)

Credit Facility | Revolving credit facility

Extinguishment of Debt [Line Items]

Increase (Decrease) Principal

2,500

Increase (Decrease) in Carrying Value

2,493

Increase in Cash - Issuances

2,500

(Decrease) in Cash - Prepayments and Conversions

$ (2,500)

Credit Facility | Term loan facility

Extinguishment of Debt [Line Items]

Increase (Decrease) Principal

1,250

Increase (Decrease) in Carrying Value

1,248

Increase in Cash - Issuances

1,248

Corporate Bonds | 2023 Notes

Extinguishment of Debt [Line Items]

Increase (Decrease) Principal

^[1]

1,250

Increase (Decrease) in Carrying Value

^[1]

1,245

Increase in Cash - Issuances

^[1]

$ 1,245

[1]	Issued April 24, 2020 and due April 24, 2023.

Commitments (Details) $ in Billions	12 Months Ended
Commitments (Details) $ in Billions	Sep. 03, 2020 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Commitments for purchase obligations	$ 5.2
Term within which a substantial majority of commitment obligations will be paid	1 year

Contingencies (Details) ¥ in Millions, $ in Millions	12 Months Ended
Contingencies (Details) ¥ in Millions, $ in Millions	Sep. 03, 2020 USD ($) patent lawsuit agreement	Sep. 03, 2020 CNY (¥) patent lawsuit agreement	Aug. 30, 2018
Pending Litigation \| Qimonda AG Inotera Share Purchase Proceedings
Loss Contingencies [Line Items]
Percentage of total Inotera shares subject to litigation (in hundredths)	18.00%	18.00%
Loss contingency, judgment under appeal \| $	$ 1
Loss Contingency, Pending Claims, Number	1	1
Pending Litigation \| Micron vs United Microelectronics Corp and Fujian Jinhua Integrated Circuit Co
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	1	1
Pending Litigation \| Micron Intel JV Arbitration Matter [Member] \| Minimum
Loss Contingencies [Line Items]
Loss Contingency, Agreements Allegedly Breached, Number \| agreement	1	1
Under Appeal \| Employee Class Action vs Micron
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	1	1
Patent Matters \| Pending Litigation \| MLC Intellectual Property, LLC vs Micron
Loss Contingencies [Line Items]
Number of patents allegedly infringed \| patent	1	1
Loss Contingency, Pending Claims, Number	1	1
Patent Matters \| Pending Litigation \| Elm 3DS Innovations, LLC vs Micron
Loss Contingencies [Line Items]
Number of patents allegedly infringed \| patent	13	13
Loss Contingency, Pending Claims, Number	1	1
Patent Matters \| Pending Litigation \| Innovative Memory Solutions, Inc. vs Micron-Complaint 1
Loss Contingencies [Line Items]
Number of patents allegedly infringed \| patent	8	8
Loss Contingency, Pending Claims, Number	1	1
Patent Matters \| Pending Litigation \| Fujian Jinhua Integrated Circuit Co., Ltd. vs Micron-Complaint 1
Loss Contingencies [Line Items]
Number of patents allegedly infringed \| patent	1	1
Damages sought on alleged patent infringement \| ¥		¥ 98
Loss Contingency, Pending Claims, Number	1	1
Patent Matters \| Pending Litigation \| Fujian Jinhua Integrated Circuit Co., Ltd. vs Micron-Complaint 2
Loss Contingencies [Line Items]
Number of patents allegedly infringed \| patent	1	1
Damages sought on alleged patent infringement \| ¥		¥ 98
Loss Contingency, Pending Claims, Number	1	1
Patent Matters \| Pending Litigation \| United Microelectronics Corporation vs Micron-Complaint 1
Loss Contingencies [Line Items]
Number of patents allegedly infringed \| patent	1	1
Damages sought on alleged patent infringement \| ¥		¥ 90
Loss Contingency, Pending Claims, Number	1	1
Patent Matters \| Pending Litigation \| United Microelectronics Corporation vs Micron-Complaint 2
Loss Contingencies [Line Items]
Number of patents allegedly infringed \| patent	1	1
Damages sought on alleged patent infringement \| ¥		¥ 90
Loss Contingency, Pending Claims, Number	1	1
Patent Matters \| Pending Litigation \| Fuzhou Court Preliminary Injunction
Loss Contingencies [Line Items]
Percent of annualized revenue derived from impacted products			1.00%
Patent Matters \| Pending Litigation \| Flash-Control, LLC vs Micron
Loss Contingencies [Line Items]
Number of patents allegedly infringed \| patent	4	4
Loss Contingency, Pending Claims, Number	1	1
Patent Matters \| Withdrawn Litigation \| Innovative Memory Solutions, Inc. vs Micron-Complaint 3
Loss Contingencies [Line Items]
Number of patents allegedly infringed \| patent	1	1
Damages sought on alleged patent infringement \| ¥		¥ 21
Loss Contingency, Claims Withdrawn, Number	1	1
Patent Matters \| Withdrawn Litigation \| United Microelectronics Corporation vs Micron-Complaint 3
Loss Contingencies [Line Items]
Number of patents allegedly infringed \| patent	1	1
Damages sought on alleged patent infringement \| ¥		¥ 90
Loss Contingency, Claims Withdrawn, Number	1	1
Antitrust Matters \| Pending Litigation \| Consolidated Amended Indirect Purchasers CA vs Micron
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	1	1
Antitrust Matters \| Pending Litigation \| Consolidated Amended Direct Purchasers CA vs Micron
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	1	1
Antitrust Matters \| Pending Litigation \| DRAM Purchasers Canada vs Micron
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	6	6
Antitrust Matters \| Joined Litigation \| Initial direct DRAM Purchasers United States vs Micron
Loss Contingencies [Line Items]
Loss Contingency, Claims Joined, Number	1	1
Antitrust Matters \| Joined Litigation \| Subsequent direct DRAM Purchasers United States vs Micron
Loss Contingencies [Line Items]
Loss Contingency, Claims Joined, Number	4	4
Antitrust Matters \| Dismissed Litigation \| Initial indirect DRAM Purchasers United States vs Micron
Loss Contingencies [Line Items]
Loss Contingency, Claims Dismissed, Number	1	1
Antitrust Matters \| Dismissed Litigation \| Subsequent indirect DRAM Purchasers United States vs Micron
Loss Contingencies [Line Items]
Loss Contingency, Claims Dismissed, Number	2	2
Securities Matters \| Pending Litigation \| Shareholder Class Action Delaware Court vs Micron.
Loss Contingencies [Line Items]
Loss Contingency, Pending Claims, Number	1	1
Securities Matters \| Joined Litigation \| Original Shareholder Action New York vs Micron
Loss Contingencies [Line Items]
Loss Contingency, Claims Joined, Number	1	1
Securities Matters \| Joined Litigation \| Subsequent Shareholder Claims New York vs Micron
Loss Contingencies [Line Items]
Loss Contingency, Claims Joined, Number	2	2
Securities Matters \| Dismissed Litigation \| Consolidated Shareholder Class Action New York Court vs Micron
Loss Contingencies [Line Items]
Loss Contingency, Claims Dismissed, Number	1	1
Securities Matters \| Withdrawn Litigation \| Shareholder Derivative Complaint Delaware Court 2
Loss Contingencies [Line Items]
Loss Contingency, Claims Withdrawn, Number	1	1
Securities Matters \| Withdrawn Litigation \| Shareholder Derivative Complaint Idaho Court
Loss Contingencies [Line Items]
Loss Contingency, Claims Withdrawn, Number	1	1

Redeemable Noncontrolling Interest (Details) - USD ($) $ in Millions		12 Months Ended
	Aug. 31, 2020	Aug. 31, 2020	Aug. 30, 2018	Aug. 29, 2019
Redeemable Noncontrolling Interest [Line Items]
Payments for repurchase of redeemable noncontrolling interest	$ 102
Micron Semiconductor Asia Operations Pt. Ltd.
Redeemable Noncontrolling Interest [Line Items]
Redeemable noncontrolling interest, shares authorized				100,000
Redeemable noncontrolling interest, shares Issued				100,000
Net proceeds from issuance of redeemable preferred stock			$ 97
Cumulative fixed dividend on redeemable noncontrolling interests		7.75%

Equity - Common Stock Repurchases (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended			24 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018	Sep. 03, 2020
Equity, Class of Treasury Stock [Line Items]
Payments for Repurchase of Common Stock	$ 251	$ 2,729	$ 71
Repurchases Authorized by the BOD
Equity, Class of Treasury Stock [Line Items]
Common Stock Repurchase, Authorized Amount	$ 10,000			$ 10,000
Treasury Shares Repurchased (in shares)	3.6	66.4
Payments for Repurchase of Common Stock	$ 176	$ 2,660		$ 2,840

Equity - Common Stock Issuance (Details) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Aug. 30, 2018 USD ($) $ / shares shares
Statement of Stockholders' Equity [Abstract]
Common stock issued (in shares) \| shares	34
Price of common shares issued (in dollars per share) \| $ / shares	$ 41.00
Proceeds from common stock issuance \| $	$ 1,360

Equity - Capped Calls (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 30, 2018
Option Indexed to Issuer's Equity [Line Items]
Value of shares received upon settlement of capped calls	$ 0	$ 0
Treasury Stock
Option Indexed to Issuer's Equity [Line Items]
Value of shares received upon settlement of capped calls	$ 98	$ 429
Call Option \| Purchased options
Option Indexed to Issuer's Equity [Line Items]
Treasury shares received from capped call settlement	1.7	9.2
Call Option \| Purchased options \| Treasury Stock
Option Indexed to Issuer's Equity [Line Items]
Value of shares received upon settlement of capped calls	$ 98	$ 429

Equity - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income (loss)	$ 9
Other comprehensive income (loss)	62	$ (1)	$ (19)
Accumulated other comprehensive income (loss)	71	9
Gains (Losses) on Derivative Instruments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income (loss)	(1)
Other comprehensive income before reclassifications	51
Amount reclassified out of accumulated other comprehensive income	4
Tax effects	(9)
Other comprehensive income (loss)	46
Accumulated other comprehensive income (loss)	45	(1)
Pension Liability Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income (loss)	4
Other comprehensive income before reclassifications	25
Amount reclassified out of accumulated other comprehensive income	(3)
Tax effects	(7)
Other comprehensive income (loss)	15
Accumulated other comprehensive income (loss)	19	4
Unrealized Gains (Losses) on Investments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income (loss)	7
Other comprehensive income before reclassifications	8
Amount reclassified out of accumulated other comprehensive income	(6)
Tax effects	(1)
Other comprehensive income (loss)	1
Accumulated other comprehensive income (loss)	8	7
Cumulative Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income (loss)	(1)
Other comprehensive income before reclassifications	0
Amount reclassified out of accumulated other comprehensive income	0
Tax effects	0
Other comprehensive income (loss)	0
Accumulated other comprehensive income (loss)	(1)	(1)
Total Micron Shareholders' Equity
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income (loss)	9
Other comprehensive income before reclassifications	84
Amount reclassified out of accumulated other comprehensive income	(5)
Tax effects	(17)
Other comprehensive income (loss)	62	(1)	$ (19)
Accumulated other comprehensive income (loss)	$ 71	$ 9

Equity - Noncontrolling Interest in Subsidiary (Details) - USD ($) $ in Millions		2 Months Ended	3 Months Ended								12 Months Ended
	Oct. 31, 2019	Oct. 31, 2019	Sep. 03, 2020	May 28, 2020	Feb. 27, 2020	Nov. 28, 2019	Aug. 29, 2019	May 30, 2019	Feb. 28, 2019	Nov. 29, 2018	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Stockholders' Equity Attributable to Noncontrolling Interest [Abstract]
Noncontrolling Interest Balance			$ 0				$ 889				$ 0	$ 889
Joint Venture Agreement, Terms [Abstract]
Acquisition of noncontrolling interest in IMFT											744	0	$ 0
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interest											784	16
Revenue			6,056	$ 5,438	$ 4,797	$ 5,144	4,870	$ 4,788	$ 5,835	$ 7,913	21,435	23,406	30,391
Noncontrolling Interests in Subsidiaries
Joint Venture Agreement, Terms [Abstract]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interest											904	17
Intel \| IM Flash Technologies, LLC
Joint Venture Agreement, Terms [Abstract]
Revenue		$ 158										731	$ 507
IM Flash Technologies, LLC
Stockholders' Equity Attributable to Noncontrolling Interest [Abstract]
Noncontrolling Interest Balance			$ 0				$ 889				$ 0	$ 889
Noncontrolling Interest Percentage (in hundredths)			0.00%				49.00%				0.00%	49.00%
Joint Venture Agreement, Terms [Abstract]
Payments to Noncontrolling Interests, Purchase of Minority Interest and Repayment of Debt	$ 1,250
Decrease in Noncontrolling Interest from Purchase of Interests in IMFT, Effect on APIC Before Tax	160
Acquisition of noncontrolling interest in IMFT	744
IM Flash Technologies, LLC \| Noncontrolling Interests in Subsidiaries
Joint Venture Agreement, Terms [Abstract]
Noncontrolling Interest, Decrease from Redemptions or Purchase of Interest	$ 904

Fair Value Measurements - Fair and Carrying Value of Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019
Debt Instrument, Fair Value Disclosure [Abstract]
Carrying Value of Debt	$ 6,157
Unrealized losses on assets held for sale (level 3)	71	$ 82
Fair Value \| Notes and MMJ Creditor Payments
Debt Instrument, Fair Value Disclosure [Abstract]
Fair Value of Notes and MMJ Creditor Payments (level 2)	6,710	5,194
Fair Value \| Convertible Notes
Debt Instrument, Fair Value Disclosure [Abstract]
Fair Value of Convertible notes (level 2)	634	852
Carrying Value \| Notes and MMJ Creditor Payments
Debt Instrument, Fair Value Disclosure [Abstract]
Carrying Value of Debt	6,026	4,937
Carrying Value \| Convertible Notes
Debt Instrument, Fair Value Disclosure [Abstract]
Carrying Value of Debt	$ 131	$ 323

Derivative Instruments - Notional Amounts and Fair Values (Details)
shares in Millions, $ in Millions

12 Months Ended

Sep. 03, 2020

USD ($)

Aug. 29, 2019

USD ($)

Derivative, Fair Value, Net [Abstract]

Fair Value of Assets

^[1]

$ 45

$ 2

Fair Value of Liabilities

^[2]

$ (3)

(188)

Designated hedging instruments

Derivative, Fair Value, Net [Abstract]

General maturity of currency forward contracts (in months)

2 years

Designated hedging instruments | Cash flow hedges | Currency forward

Notional Disclosures [Abstract]

Gross Notional Amount, Currency forwards

$ 1,845

146

Derivative, Fair Value, Net [Abstract]

Fair Value of Assets

^[1]

Fair Value of Liabilities

^[2]

$ (2)

Not designated hedging instruments

Derivative, Fair Value, Net [Abstract]

Fair Value of Assets

^[1]

Fair Value of Liabilities

^[2]

(188)

General maturity of currency forward contracts (in months)

3 months

Not designated hedging instruments | Currency forward

Notional Disclosures [Abstract]

Gross Notional Amount, Currency forwards

$ 1,587

1,871

Derivative, Fair Value, Net [Abstract]

Fair Value of Assets

^[1]

Fair Value of Liabilities

^[2]

$ (1)

$ (9)

Not designated hedging instruments | Convertible notes settlement obligation

Notional Disclosures [Abstract]

Gross Notional Amount, Convertible notes settlement obligation (in shares) | shares

Derivative, Fair Value, Net [Abstract]

Fair Value of Assets

^[1]

$ 0

Fair Value of Liabilities

^[2]

$ (179)

[1]	Included in receivables – other and other noncurrent assets.
[2]	Included in accounts payable and accrued expenses – other for forward contracts and in current debt for convertible notes settlement obligations.

Derivative Instruments - Gain (Loss) on Derivatives (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Designated hedging instruments \| Cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized in other comprehensive income from cash flow hedges	$ 51	$ (3)	$ (17)
Cash flow hedge gains expected to be reclassified into earnings within twelve months	24
Currency forward \| Not designated hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) for derivative instruments without hedge accounting designation	21	(32)	(38)
Convertible notes settlement obligation \| Not designated hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) for derivative instruments without hedge accounting designation	$ (14)	$ (58)	$ (124)

Equity Plans - Share Based Awards (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for future awards (in shares)	90
Restricted stock awards
Restricted Stock Awards activity
Number of Shares - Outstanding (in shares)	16
Number of Shares - Granted (in shares)	8	9	4
Number of Shares - Restrictions lapsed (in shares)	(6)
Number of Shares - Canceled (in shares)	(1)
Number of Shares - Outstanding (in shares)	17	16
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted Average Grant Date Fair Value Per Share - Outstanding (in dollars per share)	$ 34.72
Weighted Average Grant Date Fair Value Per Share - Granted (in dollars per share)	46.44	$ 41.11	$ 42.48
Weighted Average Grant Date Fair Value Per Share - Restrictions lapsed (in dollars per share)	29.34
Weighted Average Grant Date Fair Value Per Share - Canceled (in dollars per share)	40.59
Weighted Average Grant Date Fair Value Per Share - Outstanding (in dollars per share)	$ 42.13	$ 34.72
Restricted stock awards granted (in shares)	8	9	4
Weighted-average grant-date fair values per share (in dollars per share)	$ 46.44	$ 41.11	$ 42.48
Aggregate vesting-date fair value of shares vested	$ 294	$ 248	$ 259
Performance and Market-based Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Restricted award vesting period	3 years
Performance and Market-based Restricted Stock Awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Restricted award achievement potential, percentage	0.00%
Performance and Market-based Restricted Stock Awards \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Restricted award achievement potential, percentage	200.00%
Service-based Restricted Stock Awards
Restricted Stock Awards activity
Number of Shares - Outstanding (in shares)	15
Service-based Restricted Stock Awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual vesting rights, percentage	25.00%
Service-based Restricted Stock Awards \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual vesting rights, percentage	33.00%
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for future awards (in shares)	26
Period from grant date until stock options expire or ESPP program period (in years or months)	6 months
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted Average Grant Date Fair Value Per Share - Granted (in dollars per share)	$ 14.24	$ 11.60	$ 14.55
Weighted-average grant-date fair values per share (in dollars per share)	$ 14.24	$ 11.60	$ 14.55
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
ESPP maximum payroll deduction percentage (in hundredths)	10.00%
ESPP percentage purchase price of common stock (in hundredths)	85.00%
ESPP shares purchased (in shares)	3	3
ESPP value of shares purchased	$ 118	$ 95
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Fair Value Assumptions, Method Used	Black-Scholes
Average expected life (in years)	6 months	6 months	6 months
Weighted-average expected volatility (in hundredths)	45.00%	45.00%	43.00%
Weighted-average risk-free interest rate (in thousandths)	0.80%	2.20%	2.20%
Expected dividend yield	0.00%	0.00%	0.00%
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period from grant date until stock options expire or ESPP program period (in years or months)	8 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of options outstanding (in shares)	7
Number of shares exercised (in shares)	5
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract]
Total intrinsic value for option exercised	$ 130	$ 108	$ 446
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Fair Value Assumptions, Method Used	Black-Scholes
Stock options granted (in shares)		0	2
Weighted-average grant-date fair values per share (in dollars per share)		$ 19.50	$ 18.65
Average expected life (in years)		5 years 4 months 24 days	5 years 6 months
Weighted-average expected volatility (in hundredths)		44.00%	44.00%
Weighted-average risk-free interest rate (in thousandths)		2.90%	2.20%
Expected dividend yield		0.00%	0.00%
Employee Stock Option \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual vesting rights, percentage	25.00%
Employee Stock Option \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual vesting rights, percentage	33.00%

Equity Plans - Stock-based compensation expense (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 328	$ 243	$ 198
Share-based Payment Arrangement, Additional Disclosure [Abstract]
Tax benefit from compensation expense	72	66	158
Total unrecognized compensation costs related to non-vested awards expected to be recognized	$ 512
Weighted average period that unrecognized compensation costs is expected to be recognized (in years)	1 year 2 months 12 days
Restricted stock awards
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 272	178	140
Employee Stock Option
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	17	33	55
Employee Stock Purchase Plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	39	32	3
Equity plans
Share-based Payment Arrangement, Additional Disclosure [Abstract]
Stock compensation expense capitalized and remained in inventory	42	30
Cost of Goods Sold
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	139	102	83
Selling, general, and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	103	73	61
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock-based compensation expense	$ 86	$ 68	$ 54

Employee Benefit Plans - (Details) - USD ($) $ in Millions	12 Months Ended
Employee Benefit Plans - (Details) - USD ($) $ in Millions	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Retirement Benefits [Abstract]
Maximum annual contributions per employee (in hundredths)	75.00%
Employer matching contribution, percent of employees' eligible earnings (in hundredths)	5.00%
Defined contribution plan contribution expense	$ 66	$ 67	$ 61
Retirement Plans
Projected pension benefit obligation	202	206
Pension plan assets	$ 222	$ 195

- Definition

Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References + Details

Revenue and Customer Contract Liabilities-Product Sales (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Sep. 03, 2020	May 28, 2020	Feb. 27, 2020	Nov. 28, 2019	Aug. 29, 2019	May 30, 2019	Feb. 28, 2019	Nov. 29, 2018	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Disaggregation of Revenue [Line Items]
Revenue	$ 6,056	$ 5,438	$ 4,797	$ 5,144	$ 4,870	$ 4,788	$ 5,835	$ 7,913	$ 21,435	$ 23,406	$ 30,391
DRAM
Disaggregation of Revenue [Line Items]
Revenue									14,510	16,841	22,625
NAND
Disaggregation of Revenue [Line Items]
Revenue									6,131	5,355	6,510
Other
Disaggregation of Revenue [Line Items]
Revenue									$ 794	$ 1,210	$ 1,256

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

+ Details

Revenue and Customer Contract Liabilities-Contract Liabilities and Customer Payables (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019
Contract Liabilities
Contract liabilities	$ 65	$ 130
Revenue recognized from beginning balance	81
Unutilized advances returned to customer	22
Consideration Payable to Customers
Estimated consideration payable to customers for pricing adjustments and returns	466
Contract liabilities from customer advances (product)
Contract Liabilities
Contract liabilities	40	61
Other contract liabilities
Contract Liabilities
Contract liabilities	$ 25	$ 69

Revenue and Customer Contract Liabilities-Remaining Performance Obligations (Details) $ in Millions	Sep. 03, 2020 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Amount of Remaining Performance Obligation	$ 498
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-09-04
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining Performance Obligation Percentage	72.00%
Remaining Performance Obligation, Period of Expected Timing of Satisfaction (in months)	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-09-03
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining Performance Obligation Percentage	28.00%
Remaining Performance Obligation, Period of Expected Timing of Satisfaction (in months)

Research and Development (Details) - USD ($) $ in Millions	12 Months Ended
Research and Development (Details) - USD ($) $ in Millions	Aug. 29, 2019	Aug. 30, 2018
Research and Development [Abstract]
Reduction in R and D expenses for reimbursements from partners	$ 60	$ 201

Other Operating (Income) Expense, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Other Income and Expenses [Abstract]
Restructure and asset impairments	$ 60	$ (29)	$ 28
(Gain) loss on disposition of property, plant, and equipment	(3)	43	(96)
Other	11	35	11
Other operating (income) expense, net	$ 68	49	$ (57)
Restructuring and Related Activities [Abstract]
Restructure (gain) on sale of asset sales and dispositions		$ (128)

Other Non-Operating Income (Expense), Net (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Other Nonoperating Income (Expense) [Abstract]
Gain (loss) on debt prepayments, repurchases, and conversions	$ 40	$ (396)	$ (385)
Gain (loss) from changes in currency exchange rates	(8)	(9)	(75)
Other	28	0	(5)
Other non-operating income (expense), net	$ 60	$ (405)	$ (465)

Income Taxes - Income (loss) before Taxes and Other Items (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Income (loss) before income taxes, net income (loss) attributable to noncontrolling interests, and equity in net income (loss) of equity method investees
U.S.	$ 308	$ (67)	$ 141
Foreign	2,675	7,115	14,166
Income (loss) before income taxes, net income (loss) attributable to noncontrolling interests, and equity in net income (loss) of equity method investees	2,983	7,048	14,307
Current
U.S. federal	(20)	(36)	(54)
State	(2)	(2)	1
Foreign	(148)	(319)	(374)
Total income tax (provision) benefit - current	(170)	(357)	(427)
Deferred
U.S. federal	39	(146)	232
State	23	91	101
Foreign	(172)	(281)	(74)
Total income tax (provision) benefit - deferred	(110)	(336)	259
Income tax (provision) benefit	$ (280)	$ (693)	$ (168)

Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Income Tax Disclosure [Abstract]
Measurement period benefit, net of uncertain tax positions		$ 47
Provisional benefit for release of valuation allowance on net deferred tax assets of US operations			$ 1,340
Provision for Repatriation Tax, net of adjustments related to uncertain tax positions			1,030
Effective Income Tax Rate Reconciliation, Amount [Abstract]
U.S. federal income tax (provision) benefit at statutory rate	$ (626)	(1,480)	(3,677)
Change in unrecognized tax benefits	(33)	(59)	60
Change in valuation allowance	(20)	(40)	2,079
U.S. tax on foreign operations	(14)	(327)	(20)
Foreign tax rate differential	253	993	2,606
Foreign derived intangible income deduction	67	0	0
Research and development tax credits	62	92	67
State taxes, net of federal benefit	23	102	(84)
Repatriation Tax related to the Tax Act	0	(10)	(1,049)
Remeasurement of deferred tax assets and liabilities related to the Tax Act	0	0	(179)
Other	8	36	29
Income tax (provision) benefit	$ (280)	$ (693)	$ (168)
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. federal statutory rate (percent)	21.00%	21.00%	25.70%
Unrecognized tax benefits (percent)	1.10%	0.80%	(0.40%)
Change in valuation allowance (percent)	0.70%	0.60%	(14.50%)
U.S. tax on foreign operations (percent)	0.50%	4.60%	0.10%
Foreign tax rate differential (percent)	(8.50%)	(14.10%)	(18.20%)
Foreign derived intangible income (percent)	(2.20%)	0.00%	0.00%
Research and development tax credits (percent)	(2.10%)	(1.30%)	(0.50%)
State taxes, net of federal benefit (percent)	(0.80%)	(1.40%)	0.60%
Repatriation Tax related to the Tax Act (percent)	0	0.001	0.073
Remeasurement of deferred tax assets and liabilities related to the Tax Act (percent)	0.00%	0.00%	1.30%
Other (percent)	(0.30%)	(0.50%)	(0.20%)
Effective tax rate (percent)	9.40%	9.80%	1.20%

Income Taxes Income Taxes - Tax Holiday (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Income Tax Disclosure [Abstract]
Tax benefit from incentive arrangements	$ 215	$ 756	$ 1,960
Tax benefit per diluted share from incentive arrangements	$ 0.19	$ 0.66	$ 1.59

Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Sep. 03, 2020	Aug. 29, 2019
Income Tax Disclosure [Abstract]
Undistributed earnings of foreign subsidiaries deemed indefinitely reinvested	$ 2,700
Deferred Tax Assets
Net operating loss and tax credit carryforwards	912	$ 1,045
Accrued salaries, wages, and benefits	176	122
Operating lease liabilities	114	0
Property, plant, and equipment	0	80
Other	91	110
Gross deferred tax assets	1,293	1,357
Less valuation allowance	(294)	(277)
Deferred tax assets, net of valuation allowance	999	1,080
Deferred Tax Liabilities
Right-of-use assets	(95)	0
Product and process technology	(57)	(138)
Property, plant, and equipment	(50)	0
Other	(99)	(109)
Deferred tax liabilities	(301)	(247)
Net deferred tax assets	698	833
Reported as
Deferred tax assets	707	837
Deferred tax liabilities (included in other noncurrent liabilities)	$ (9)	$ (4)

Income Taxes - Tax Credit Carryforwards (Details) $ in Millions	Sep. 03, 2020 USD ($)
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	$ 651
2021 - 2025
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	43
2026 - 2030
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	71
2031 - 2035
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	131
2036 - 2040
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	325
Indefinite
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	81
U.S. Federal
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	321
U.S. Federal \| 2021 - 2025
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
U.S. Federal \| 2026 - 2030
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
U.S. Federal \| 2031 - 2035
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
U.S. Federal \| 2036 - 2040
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	321
U.S. Federal \| Indefinite
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
State
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	330
State \| 2021 - 2025
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	43
State \| 2026 - 2030
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	71
State \| 2031 - 2035
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	131
State \| 2036 - 2040
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	4
State \| Indefinite
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	$ 81

Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning unrecognized tax benefits	$ 383	$ 261	$ 327
Increases related to tax positions from prior years	14	124	0
Increases related to tax positions taken in current year	27	44	68
Decreases related to tax positions from prior years	(13)	(46)	(126)
Settlements with tax authorities	0	0	(8)
Ending unrecognized tax benefits	$ 411	$ 383	$ 261

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Sep. 03, 2020	May 28, 2020	Feb. 27, 2020	Nov. 28, 2019	Aug. 29, 2019	May 30, 2019	Feb. 28, 2019	Nov. 29, 2018	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Earnings Per Share Reconciliation [Abstract]
Net income attributable to Micron - Basic	$ 988	$ 803	$ 405	$ 491	$ 561	$ 840	$ 1,619	$ 3,293	$ 2,687	$ 6,313	$ 14,135
Assumed conversion of debt									(4)	(12)	0
Net income attributable to Micron - Diluted									$ 2,683	$ 6,301	$ 14,135
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average common shares outstanding - Basic (in shares)									1,110	1,114	1,152
Dilutive effect of equity plans and convertible notes (in shares)									21	29	77
Weighted-average common shares outstanding - Diluted (in shares)									1,131	1,143	1,229
Earnings per share
Basic (in dollars per share)	$ 0.89	$ 0.72	$ 0.37	$ 0.44	$ 0.51	$ 0.76	$ 1.45	$ 2.91	$ 2.42	$ 5.67	$ 12.27
Diluted (in dollars per share)	$ 0.87	$ 0.71	$ 0.36	$ 0.43	$ 0.49	$ 0.74	$ 1.42	$ 2.81	$ 2.37	$ 5.51	$ 11.51
Antidilutive potential common shares that could dilute basic earnings per share in the future (in shares)									5	8	3

Segment Information (Details) $ in Millions	3 Months Ended								12 Months Ended
Segment Information (Details) $ in Millions	Sep. 03, 2020 USD ($)	May 28, 2020 USD ($)	Feb. 27, 2020 USD ($)	Nov. 28, 2019 USD ($)	Aug. 29, 2019 USD ($)	May 30, 2019 USD ($)	Feb. 28, 2019 USD ($)	Nov. 29, 2018 USD ($)	Sep. 03, 2020 USD ($) segment	Aug. 29, 2019 USD ($)	Aug. 30, 2018 USD ($)
Reportable Segments
Number of reportable segments \| segment									4
Segment Reporting Information, Additional Information [Abstract]
Goodwill	$ 1,228				$ 1,228				$ 1,228	$ 1,228
Net sales
Revenue	6,056	$ 5,438	$ 4,797	$ 5,144	4,870	$ 4,788	$ 5,835	$ 7,913	21,435	23,406	$ 30,391
Operating income (loss)
Stock-based compensation									(328)	(243)	(198)
Restructure and asset impairments									(60)	29	(28)
Operating income (loss)	1,157	$ 888	$ 440	$ 518	650	$ 1,010	$ 1,957	$ 3,759	3,003	7,376	14,994
Depreciation and amortization
Depreciation and amortization expense by segment									5,650	5,424	4,759
CNBU
Segment Reporting Information, Additional Information [Abstract]
Goodwill	832				832				832	832
Net sales
Revenue									9,184	9,968	15,252
MBU
Segment Reporting Information, Additional Information [Abstract]
Goodwill	198				198				198	198
Net sales
Revenue									5,702	6,403	6,579
SBU
Segment Reporting Information, Additional Information [Abstract]
Goodwill	101				101				101	101
Net sales
Revenue									3,765	3,826	5,022
EBU
Segment Reporting Information, Additional Information [Abstract]
Goodwill	$ 97				$ 97				97	97
Net sales
Revenue									2,759	3,137	3,479
All Other
Net sales
Revenue									25	72	59
Operating Segments
Operating income (loss)
Operating income (loss)									3,419	7,801	15,243
Operating Segments \| CNBU
Operating income (loss)
Operating income (loss)									2,010	4,645	9,773
Depreciation and amortization
Depreciation and amortization expense by segment									2,318	1,833	1,755
Operating Segments \| MBU
Operating income (loss)
Operating income (loss)									1,074	2,606	3,033
Depreciation and amortization
Depreciation and amortization expense by segment									1,436	1,235	1,077
Operating Segments \| SBU
Operating income (loss)
Operating income (loss)									36	(386)	964
Depreciation and amortization
Depreciation and amortization expense by segment									1,115	1,555	1,295
Operating Segments \| EBU
Operating income (loss)
Operating income (loss)									301	923	1,473
Depreciation and amortization
Depreciation and amortization expense by segment									741	748	603
Operating Segments \| All Other
Operating income (loss)
Operating income (loss)									(2)	13	0
Depreciation and amortization
Depreciation and amortization expense by segment									12	27	18
Unallocated
Operating income (loss)
Stock-based compensation									(328)	(243)	(198)
Restructure and asset impairments									(60)	32	(28)
Employee severance									0	(116)	0
Start-up and preproduction costs									0	(58)	0
Other									(28)	(40)	(23)
Operating income (loss)									(416)	(425)	(249)
Depreciation and amortization
Depreciation and amortization expense by segment									$ 28	$ 26	$ 11

Certain Concentrations (Details) - Revenue from Contract with Customer	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Product Concentration Risk \| Mobile
Concentration Risk [Line Items]
Concentration Risk, Percentage	25.00%	25.00%	20.00%
Product Concentration Risk \| Client and graphics
Concentration Risk [Line Items]
Concentration Risk, Percentage	20.00%	20.00%	25.00%
Product Concentration Risk \| Enterprise and cloud server
Concentration Risk [Line Items]
Concentration Risk, Percentage	20.00%	20.00%	25.00%
Product Concentration Risk \| SSDs and other storage
Concentration Risk [Line Items]
Concentration Risk, Percentage	20.00%	15.00%	15.00%
Product Concentration Risk \| Automotive, industrial, and consumer
Concentration Risk [Line Items]
Concentration Risk, Percentage	15.00%	15.00%	10.00%
Customer Concentration Risk \| Kingston
Concentration Risk [Line Items]
Concentration Risk, Percentage	11.00%	11.00%	10.00%
Customer Concentration Risk \| Huawei
Concentration Risk [Line Items]
Concentration Risk, Percentage		12.00%

Geographic Information (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
Geographic Information (Details) - USD ($) $ in Millions	Sep. 03, 2020	May 28, 2020	Feb. 27, 2020	Nov. 28, 2019	Aug. 29, 2019	May 30, 2019	Feb. 28, 2019	Nov. 29, 2018	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Geographic Areas, Revenues from External Customers [Abstract]
Revenue	$ 6,056	$ 5,438	$ 4,797	$ 5,144	$ 4,870	$ 4,788	$ 5,835	$ 7,913	$ 21,435	$ 23,406	$ 30,391
Geographic Revenue Allocation Basis									geographic location of our customers’ headquarters
Geographic Areas, Long-Lived Assets [Abstract]
Long-lived assets	31,615				28,240				$ 31,615	28,240
United States
Geographic Areas, Revenues from External Customers [Abstract]
Revenue									10,381	12,451	17,116
Geographic Areas, Long-Lived Assets [Abstract]
Long-lived assets	5,434				5,048				5,434	5,048
Taiwan
Geographic Areas, Revenues from External Customers [Abstract]
Revenue									3,657	2,703	3,918
Geographic Areas, Long-Lived Assets [Abstract]
Long-lived assets	10,516				9,397				10,516	9,397
China
Geographic Areas, Revenues from External Customers [Abstract]
Revenue									2,337	3,595	3,607
Geographic Areas, Long-Lived Assets [Abstract]
Long-lived assets	478				370				478	370
Hong Kong
Geographic Areas, Revenues from External Customers [Abstract]
Revenue									1,792	1,614	1,761
Japan
Geographic Areas, Revenues from External Customers [Abstract]
Revenue									1,387	958	1,265
Geographic Areas, Long-Lived Assets [Abstract]
Long-lived assets	6,478				5,202				6,478	5,202
Other Asia Pacific
Geographic Areas, Revenues from External Customers [Abstract]
Revenue									1,157	1,032	1,458
Singapore
Geographic Areas, Long-Lived Assets [Abstract]
Long-lived assets	8,161				7,986				8,161	7,986
Other
Geographic Areas, Revenues from External Customers [Abstract]
Revenue									724	1,053	$ 1,266
Geographic Areas, Long-Lived Assets [Abstract]
Long-lived assets	$ 548				$ 237				$ 548	$ 237

Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Sep. 03, 2020	May 28, 2020	Feb. 27, 2020	Nov. 28, 2019	Aug. 29, 2019	May 30, 2019	Feb. 28, 2019	Nov. 29, 2018	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 6,056	$ 5,438	$ 4,797	$ 5,144	$ 4,870	$ 4,788	$ 5,835	$ 7,913	$ 21,435	$ 23,406	$ 30,391
Gross margin	2,068	1,763	1,355	1,366	1,395	1,828	2,864	4,615	6,552	10,702	17,891
Operating income	1,157	888	440	518	650	1,010	1,957	3,759	3,003	7,376	14,994
Net income	990	805	407	508	586	851	1,625	3,296	2,710	6,358	14,138
Net income attributable to Micron	$ 988	$ 803	$ 405	$ 491	$ 561	$ 840	$ 1,619	$ 3,293	$ 2,687	$ 6,313	$ 14,135
Earnings per share
Basic (in dollars per share)	$ 0.89	$ 0.72	$ 0.37	$ 0.44	$ 0.51	$ 0.76	$ 1.45	$ 2.91	$ 2.42	$ 5.67	$ 12.27
Diluted (in dollars per share)	$ 0.87	$ 0.71	$ 0.36	$ 0.43	$ 0.49	$ 0.74	$ 1.42	$ 2.81	$ 2.37	$ 5.51	$ 11.51

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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Schedule II Valuation and Qualifying Accounts (Details) - Deferred Tax Assets Valuation Allowance - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 277	$ 228	$ 2,321
Charged to Income Tax Provision	20	40
(Credited) to Income Tax Provision			(2,079)
Currency Translation and (Credits) to Other Accounts	(3)		(14)
Currency Translation and Charges to Other Accounts		9
Balance at End of Year	$ 294	$ 277	$ 228

Income Taxes - Operating Loss Carryforwards (Details) $ in Millions	Sep. 03, 2020 USD ($)
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 2,809
2021 - 2025
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	1,293
2026 - 2030
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	407
2031 - 2035
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	338
2036 - 2040
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	30
Indefinite
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	741
State
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	730
State \| 2021 - 2025
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	49
State \| 2026 - 2030
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	313
State \| 2031 - 2035
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	337
State \| 2036 - 2040
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	30
State \| Indefinite
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	1
Foreign \| Japan
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	1,308
Foreign \| Japan \| 2021 - 2025
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	1,224
Foreign \| Japan \| 2026 - 2030
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	84
Foreign \| Japan \| 2031 - 2035
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	0
Foreign \| Japan \| 2036 - 2040
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	0
Foreign \| Japan \| Indefinite
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	0
Foreign \| Singapore
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	621
Foreign \| Singapore \| 2021 - 2025
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	0
Foreign \| Singapore \| 2026 - 2030
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	0
Foreign \| Singapore \| 2031 - 2035
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	0
Foreign \| Singapore \| 2036 - 2040
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	0
Foreign \| Singapore \| Indefinite
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	621
Foreign \| Other
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	150
Foreign \| Other \| 2021 - 2025
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	20
Foreign \| Other \| 2026 - 2030
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	10
Foreign \| Other \| 2031 - 2035
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	1
Foreign \| Other \| 2036 - 2040
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	0
Foreign \| Other \| Indefinite
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 119