Shareholders' Equity (Details) (USD $) In Millions	2 Months Ended	3 Months Ended			9 Months Ended
	Jan. 31, 2011	Jun. 02, 2011	Jun. 03, 2010	Mar. 04, 2010	Jun. 02, 2011	Jun. 03, 2010
Schedule of Stockholders' Equity [Line Items]
Beginning Balance					$ 9,816	$ 6,939
Net income		77	960		324	1,541
Other comprehensive income		21	5		116	21
Comprehensive income		98	965		440	1,562
Stock issued in acquisition of Numonyx					0	1,112
Acquisition of noncontrolling interests in TECH					(159)	0
Net distributions to noncontrolling interests					(151)	(222)
Capital and other transactions attributable to Micron					86	76
Ending Balance		10,032	9,467		10,032	9,467
Attributable to Micron [Member]
Schedule of Stockholders' Equity [Line Items]
Beginning Balance					8,020	4,953
Net income					302	1,508
Other comprehensive income					108	21
Comprehensive income					410	1,529
Stock issued in acquisition of Numonyx					0	1,112
Acquisition of noncontrolling interests in TECH	67	0	0	10	67	10
Net distributions to noncontrolling interests					0	0
Capital and other transactions attributable to Micron					86	76
Ending Balance		8,583	7,680		8,583	7,680
Noncontrolling Interest [Member]
Schedule of Stockholders' Equity [Line Items]
Beginning Balance					1,796	1,986
Net income					22	33
Other comprehensive income					8	0
Comprehensive income					30	33
Stock issued in acquisition of Numonyx					0	0
Acquisition of noncontrolling interests in TECH	(226)				(226)	(10)
Net distributions to noncontrolling interests					(151)	(222)
Capital and other transactions attributable to Micron					0	0
Ending Balance		$ 1,449	$ 1,787		$ 1,449	$ 1,787