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	Aug. 31, 2012		Nov. 30, 2011
Assets
Derivative financial instruments	$ 41		$ 6
Liabilities
Derivative financial instruments	38		12
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 1
Assets
Total	446		201
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 1 | Money market funds
Assets
Cash equivalents	308	[1]	92	[1]
Restricted cash	31	[2]	11	[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	107	[3]	98	[3]
Financial Instruments Measured at Fair Value on a Recurring Basis | Level 2
Assets
Derivative financial instruments	41	[4]	6	[4]
Total	57		24
Liabilities
Derivative financial instruments	38	[4]	12	[4]
Total	38		12
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	$ 16	[3]	$ 18	[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.