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, 2013		Nov. 30, 2012
Assets
Derivative financial instruments	$ 39		$ 48
Liabilities
Derivative financial instruments	49		43
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 1
Assets
Total	338		328
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 1 | Money market funds
Assets
Cash equivalents	202	[1]	196	[1]
Restricted cash	25	[2]	28	[2]
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	111	[3]	104	[3]
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 2
Assets
Derivative financial instruments	39	[4]	48	[4]
Total	49		64
Liabilities
Derivative financial instruments	49	[4]	43	[4]
Total	49		43
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	$ 10	[3]	$ 16	[3]

[1] Cash equivalents are comprised of money market funds.

[2] Restricted cash is comprised of money market funds.

[3] Level 1 and 2 marketable securities are held in rabbi trusts and are primarily comprised of frequently-priced mutual funds invested in common stocks and other investments, respectively. Their use is restricted to funding certain deferred compensation and non-qualified U.S. pension plans.

[4] See "Derivative Instruments and Hedging Activities" section below for detailed information regarding our derivative financial instruments.