Debt MMJ Debt Restructure (Details)	12 Months Ended						1 Months Ended
	Aug. 28, 2014 USD ($)	Aug. 29, 2013 USD ($)	Aug. 30, 2012 USD ($)	Aug. 28, 2014 Reorganization obligation [Member] USD ($)	Aug. 28, 2014 Reorganization obligation [Member] JPY (¥)	Aug. 29, 2013 Reorganization obligation [Member] USD ($)	Oct. 31, 2013 Elpida Memories, Inc. now known as Micron Memory Japan, Inc. [Member] Reorganization obligation [Member] JPY (¥)	Aug. 28, 2014 Elpida Memories, Inc. now known as Micron Memory Japan, Inc. [Member] Reorganization obligation [Member] USD ($)	Aug. 28, 2014 Elpida Memories, Inc. now known as Micron Memory Japan, Inc. [Member] Reorganization obligation [Member] JPY (¥)	Aug. 28, 2014 Akita, now known as Micron Akita, Inc. [Member] Reorganization obligation [Member]	Aug. 28, 2014 Scenario, Plan [Member] Elpida Memories, Inc. now known as Micron Memory Japan, Inc. [Member] Reorganization obligation [Member] USD ($)	Aug. 28, 2014 Scenario, Plan [Member] Elpida Memories, Inc. now known as Micron Memory Japan, Inc. [Member] Reorganization obligation [Member] JPY (¥)	Aug. 28, 2014 Secured Creditors [Member] Elpida Memories, Inc. now known as Micron Memory Japan, Inc. [Member] Reorganization obligation [Member] decimal	Aug. 28, 2014 Unsecured Creditor [Member] Elpida Memories, Inc. now known as Micron Memory Japan, Inc. [Member] Reorganization obligation [Member] decimal	Aug. 28, 2014 Unsecured Creditor [Member] Akita, now known as Micron Akita, Inc. [Member] Reorganization obligation [Member] decimal
Assumed Debt Subject to Bankruptcy [Line Items]
Reorganization Plan Payments, Total Cash Payments					¥ 200,000,000,000
Recovery Rate Of Secured Creditors								100.00%	100.00%
Recovery Rate of Unsecured Creditors								17.40%	17.40%	19.00%
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities	3,843,000,000	743,000,000	203,000,000				51,000,000,000
Reorganization Plan Number of Annual Installment Payments													6	7	7
Effective interest rate (in hundredths)				6.25%	6.25%
Elpida Sponsor Agreement [Abstract]
2015											196,000,000	20,330,000,000
2016											194,000,000	20,197,000,000
2017											193,000,000	20,063,000,000
2018											192,000,000	19,928,000,000
2019											276,000,000	28,674,000,000
2020											318,000,000	33,024,000,000
Estimated Reorganization Payment to Third Party Creditors, Total Cash Payments											1,369,000,000	142,216,000,000
Debt Instrument, Unamortized Discount								(238,000,000)	(24,700,000,000)
Debt	$ 6,593,000,000	$ 6,037,000,000		$ 1,131,000,000		$ 1,644,000,000		$ 1,131,000,000	¥ 117,516,000,000