Shareholders' Equity - Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	May 30, 2013	May 31, 2012	May 30, 2013	May 31, 2012	Aug. 30, 2012
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income	$ 69		$ 69		$ 80
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Cumulative foreign currency translation adjustments	(7)	8	2	(11)
Gain (loss) on derivatives, net	(1)	(2)	(9)	(17)
Gain (loss) on investments, net	(1)	(1)	(2)	(31)
Pension liability adjustments	0	2	(1)	2
Other comprehensive income (loss)	(9)	7	(10)	(57)
Attributable to Micron [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Cumulative foreign currency translation adjustments	51		51		49
Gain (loss) on derivatives, net	21		21		31
Gain (loss) on investments, net	(1)		(1)		1
Pension liability adjustments	(2)		(2)		(1)
Accumulated other comprehensive income	69		69		80
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Cumulative foreign currency translation adjustments			2
Gain (loss) on derivatives, net			(10)
Gain (loss) on investments, net			(2)
Pension liability adjustments			(1)
Other comprehensive income (loss)			$ (11)	$ (52)