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Debt - MMJ Creditor Payments (Details) ¥ in Millions, $ in Millions	Aug. 31, 2017 USD ($) payment		Aug. 31, 2017 JPY (¥) payment	Sep. 01, 2016 USD ($)	[1]
Elpida Sponsor Agreement [Abstract]
Debt | $	$ 11,134	[1]		$ 9,910
Reorganization obligation
Elpida Sponsor Agreement [Abstract]
Debt | $	$ 631	[1]		$ 869
Reorganization obligation | Micron Memory Japan, Inc.
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Total MMJ Creditor Payments | ¥			¥ 200,000
Number of periodic MMJ creditor installment payments	7		7
Elpida Sponsor Agreement [Abstract]
Less unamortized discount	$ (64)		¥ (7,075)
Debt	631		69,516
Reorganization obligation | Micron Memory Japan, Inc. | Scenario, Plan
Elpida Sponsor Agreement [Abstract]
2018	160		17,675
2019	246		27,154
2020	289		31,762
Estimated Remaining Reorganization Payments to Third Party Creditors	$ 695		¥ 76,591
Reorganization obligation | Micron Memory Japan, Inc. | Secured Creditors
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Number of periodic MMJ creditor installment payments	6		6
Recovery Rate of Reorganization Plan Creditors	100.00%		100.00%
Reorganization obligation | Micron Memory Japan, Inc. | Unsecured Creditor
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Number of periodic MMJ creditor installment payments	7		7
Reorganization obligation | Micron Memory Japan, Inc. | Unsecured Creditor | Minimum
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Recovery Rate of Reorganization Plan Creditors	17.40%		17.40%
Reorganization obligation | Micron Akita, Inc. | Unsecured Creditor
Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items]
Number of periodic MMJ creditor installment payments	7		7
[1] Net carrying amount is the principal amount less unamortized debt discount and issuance costs. In addition, the net carrying amount for our 2033E Notes for 2017 included $31 million of derivative debt liabilities recognized as a result of our election to settle entirely in cash converted notes with an aggregate principal amount of $16 million.

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