Financial Instruments (Details) - USD ($) $ in Millions		12 Months Ended
		Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2014	Aug. 10, 2015
Effect of Fair Value Hedges on Results of Operations [Abstract]
Cumulative fair value adjustments resulted in increase in long-term debt		$ 2	$ 1
Interest Rate Swaps [Member] | Six-month LIBOR [Member]
Derivatives, Fair Value [Line Items]
Fair value			$ 750
Fixed interest rate percentage			5.25%
Cash Flow Hedges [Abstract]
Derivative notional amount terminated					$ 500
Interest Rate Swaps [Member] | One-month LIBOR [Member]
Derivatives, Fair Value [Line Items]
Fair value			$ 250
Fixed interest rate percentage			5.25%
Interest Rate Swaps [Member] | Derivatives Designated as Hedges [Member] | Other Non-currents Assets [Member]
Derivatives, Fair Value [Line Items]
Notional	[1]	250	$ 250
Fair value		3	2
Interest Rate Swaps [Member] | Derivatives Not Designated as Hedges [Member] | Interest Expense, Net [Member]
Effect of Fair Value Hedges on Results of Operations [Abstract]
Gains and losses due to changes in fair value of derivative instruments		0	1	$ 0
Foreign Currency Forwards [Member] | Derivatives Designated as Hedges [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Notional	[1]		1,205
Fair value			34
Foreign Currency Forwards [Member] | Derivatives Designated as Hedges [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Notional	[1]		495
Fair value			9
Foreign Currency Forwards [Member] | Derivatives Not Designated as Hedges [Member] | Selling, General and Administrative Expenses [Member]
Effect of Fair Value Hedges on Results of Operations [Abstract]
Gains and losses due to changes in fair value of derivative instruments		19	78	0
Foreign Currency Forwards [Member] | Derivatives Not Designated as Hedges [Member] | Other Income (Expenses) [Member]
Effect of Fair Value Hedges on Results of Operations [Abstract]
Gains and losses due to changes in fair value of derivative instruments		(12)	72	0
Foreign Currency Forwards [Member] | Derivatives Not Designated as Hedges [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Notional	[1]	1,177
Fair value		16
Foreign Currency Forwards [Member] | Derivatives Not Designated as Hedges [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Notional	[1]	41
Fair value		0
Basis Swaps [Member] | Derivatives Designated as Hedges [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Notional	[1]		1
Fair value			0
Basis Swaps [Member] | Derivatives Not Designated as Hedges [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Notional	[1]	2
Fair value		1
Second Step Transaction Foreign Currency Forwards [Member] | Derivatives Not Designated as Hedges [Member] | Other Income (Expenses) [Member]
Effect of Fair Value Hedges on Results of Operations [Abstract]
Gains and losses due to changes in fair value of derivative instruments		0	(166)	0
Warrants [Member] | Other Income (Expenses) [Member]
Effect of Fair Value Hedges on Results of Operations [Abstract]
Gains and losses due to changes in fair value of derivative instruments		$ (546)	$ 759	$ 366

[1] Amounts are presented in U.S. dollar equivalents, as applicable.