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Derivative Instruments - Gain (Loss) on Derivatives (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended 9 Months Ended
May 31, 2018
Jun. 01, 2017
Mar. 01, 2018
May 31, 2018
Jun. 01, 2017
Designated hedging instruments | Cash flow hedges          
Derivative Instruments, Gain (Loss) [Line Items]          
Net gains (losses) recognized in other comprehensive income, effective portion $ (23) $ 6   $ (6) $ (3)
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 28     (28)  
Gain (loss) on derivatives designated as hedging instruments (28)     28  
Amortization of amounts excluded from hedge effectiveness (13)     (32)  
Gain (loss) on fair value hedges recognized in earnings (13)     (32)  
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 (52) $ 70 $ 52   $ (47)
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 $ (119)     $ (143)