Equity - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 03, 2020	Aug. 29, 2019	Aug. 30, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income (loss)	$ 9
Other comprehensive income (loss)	62	$ (1)	$ (19)
Accumulated other comprehensive income (loss)	71	9
Gains (Losses) on Derivative Instruments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income (loss)	(1)
Other comprehensive income before reclassifications	51
Amount reclassified out of accumulated other comprehensive income	4
Tax effects	(9)
Other comprehensive income (loss)	46
Accumulated other comprehensive income (loss)	45	(1)
Pension Liability Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income (loss)	4
Other comprehensive income before reclassifications	25
Amount reclassified out of accumulated other comprehensive income	(3)
Tax effects	(7)
Other comprehensive income (loss)	15
Accumulated other comprehensive income (loss)	19	4
Unrealized Gains (Losses) on Investments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income (loss)	7
Other comprehensive income before reclassifications	8
Amount reclassified out of accumulated other comprehensive income	(6)
Tax effects	(1)
Other comprehensive income (loss)	1
Accumulated other comprehensive income (loss)	8	7
Cumulative Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income (loss)	(1)
Other comprehensive income before reclassifications	0
Amount reclassified out of accumulated other comprehensive income	0
Tax effects	0
Other comprehensive income (loss)	0
Accumulated other comprehensive income (loss)	(1)	(1)
Total Micron Shareholders' Equity
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated other comprehensive income (loss)	9
Other comprehensive income before reclassifications	84
Amount reclassified out of accumulated other comprehensive income	(5)
Tax effects	(17)
Other comprehensive income (loss)	62	(1)	$ (19)
Accumulated other comprehensive income (loss)	$ 71	$ 9