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 (Detail) (USD $) In Millions, unless otherwise specified	Feb. 28, 2015	Nov. 30, 2014
Assets
Derivative financial instruments	$ 58	$ 78
Liabilities
Derivative financial instruments	431	342
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 1
Assets
Total	172	223
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 1 | Money market funds
Assets
Cash equivalents	39	91
Restricted cash	21	19
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 1 | Marketable securities held in rabbi trusts
Assets
Marketable securities held in rabbi trusts	112	113
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 2
Assets
Total	28	23
Liabilities
Total	392	278
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 2 | Marketable securities held in rabbi trusts
Assets
Marketable securities held in rabbi trusts	9	9
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 2 | Derivative financial instruments
Assets
Derivative financial instruments	19	14
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 2 | Derivative financial instruments
Liabilities
Derivative financial instruments	392	278
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 3
Assets
Total	20	20
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 3 | Marketable securities held in rabbi trusts
Assets
Marketable securities held in rabbi trusts
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 3 | Long-term other assets
Assets
Long-term other assets	$ 20	$ 20