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Derivative Instruments - Gain (Loss) on Derivatives (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Mar. 01, 2018
Mar. 02, 2017
Mar. 01, 2018
Mar. 02, 2017
Designated hedging instruments | Cash flow hedges        
Derivative Instruments, Gain (Loss) [Line Items]        
Net gains (losses) recognized in other comprehensive income, effective portion $ 21   $ 17 $ (9)
Designated hedging instruments | Fair value hedges        
Gain (Loss) on Fair Value Hedges Recognized in Earnings [Abstract]        
Gain (loss) on remeasurement of hedged assets and liabilities (56)      
Gain (loss) on derivatives designated as hedging instruments 56      
Amortization of amounts excluded from hedge effectiveness (19)      
Gain (loss) on fair value hedges recognized in earnings (19)      
Currency forward | Not designated hedging instruments        
Gain (Loss) on Fair Value Hedges Recognized in Earnings [Abstract]        
Net gains (losses) for derivative instruments without hedge accounting designation 50 $ 61 52 $ (117)
Convertible notes settlement obligation | Not designated hedging instruments        
Gain (Loss) on Fair Value Hedges Recognized in Earnings [Abstract]        
Net gains (losses) for derivative instruments without hedge accounting designation $ (20)   $ (24)