Equity - MMT Share Purchase (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended				3 Months Ended		3 Months Ended
	Feb. 27, 2014	Feb. 28, 2013	Feb. 27, 2014 Noncontrolling Interests [Member]	Feb. 28, 2013 Noncontrolling Interests [Member]	Feb. 27, 2014 Rexchip Electronics Corporation, now known as Micron Memory Taiwan Co., Ltd. [Member]	Aug. 29, 2013 Rexchip Electronics Corporation, now known as Micron Memory Taiwan Co., Ltd. [Member]	Feb. 27, 2014 Rexchip Electronics Corporation, now known as Micron Memory Taiwan Co., Ltd. [Member] Noncontrolling Interests [Member]	Feb. 27, 2014 Rexchip Electronics Corporation, now known as Micron Memory Taiwan Co., Ltd. [Member] Additional Capital [Member]	Jul. 31, 2013 Elpida Acquisition [Member] Rexchip Electronics Corporation, now known as Micron Memory Taiwan Co., Ltd. [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Noncontrolling interests, ownership percentage by noncontrolling owners (in ten thousandths)					1.24%	11.11%			11.11%
Minority interest decrease from purchase of interest, change in ownership percentage (in ten thousandths)					9.87%
Acquisition of noncontrolling interest in MMT	$ (136)	$ 0	$ (167)	$ 0	$ (136)		$ (167)	$ 31