Derivative Instruments - Gain (Loss) on Derivatives (Details) - USD ($) $ in Millions	3 Months Ended
	Nov. 28, 2019	Nov. 29, 2018
Designated hedging instruments | Cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) recognized in other comprehensive income, effective portion	$ 3	$ (13)
Currency forward | Not designated hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) for derivative instruments without hedge accounting designation	5	(11)
Convertible notes settlement obligation | Not designated hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
Net gains (losses) for derivative instruments without hedge accounting designation	$ (12)	$ 16