Fair Value Measurements, Derivative Instruments and Hedging Activities - Estimated Fair Value and Basis of Valuation of Financial Instrument Assets And Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Aug. 31, 2016	Nov. 30, 2015
Assets
Derivative financial instruments	$ 13	$ 73
Liabilities
Derivative financial instruments	518	669
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 1
Assets
Total	341	875
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 1 | Money market funds
Assets
Cash equivalents	220	748
Restricted cash	25	22
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 1 | Marketable securities held in rabbi trusts
Assets
Investments	96	105
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 2
Assets
Total	14	37
Liabilities
Total	515	625
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 2 | Marketable securities held in rabbi trusts
Assets
Investments	4	8
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 2 | Derivative financial instruments
Assets
Derivative financial instruments	10	29
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 2 | Derivative financial instruments
Liabilities
Derivative financial instruments	515	625
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 3
Assets
Total	21	21
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 3 | Short-term investments
Assets
Investments	$ 21
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 3 | Marketable securities held in rabbi trusts
Assets
Investments
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 3 | Long-term other assets
Assets
Long-term other assets		$ 21