Equity - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Aug. 29, 2019	Aug. 30, 2018	Aug. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income	$ 10
Other comprehensive income (loss)	(1)	$ (19)	$ 64
Accumulated other comprehensive income	9	10
Pension Liability Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income	10
Other comprehensive income	(13)
Amount reclassified out of accumulated other comprehensive income	4
Tax effects	3
Other comprehensive income (loss)	(6)
Accumulated other comprehensive income	4	10
Gains (Losses) on Derivative Instruments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income	2
Other comprehensive income	(3)
Amount reclassified out of accumulated other comprehensive income	0
Tax effects	0
Other comprehensive income (loss)	(3)
Accumulated other comprehensive income	(1)	2
Cumulative Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income	0
Other comprehensive income	(1)
Amount reclassified out of accumulated other comprehensive income	0
Tax effects	0
Other comprehensive income (loss)	(1)
Accumulated other comprehensive income	(1)	0
Unrealized Gains (Losses) on Investments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income	(2)
Other comprehensive income	14
Amount reclassified out of accumulated other comprehensive income	(3)
Tax effects	(2)
Other comprehensive income (loss)	9
Accumulated other comprehensive income	7	(2)
Total Micron Shareholders' Equity
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income	10
Other comprehensive income	(3)
Amount reclassified out of accumulated other comprehensive income	1
Tax effects	1
Other comprehensive income (loss)	(1)	(19)	$ 64
Accumulated other comprehensive income	$ 9	$ 10