Fair Value Measurements, Derivative Instruments and Hedging Activities - Offsetting Derivative Instruments (Details) (USD $) In Millions, unless otherwise specified	Feb. 28, 2014	Nov. 30, 2013
Offsetting Derivative Instruments [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 110	$ 137
Derivative Asset, Fair Value, Amount Offset Against Collateral	(73)	(77)
Derivative Asset, Fair Value, Amount Not Offset Against Collateral	(3)	(7)
Derivative Asset	34	53
Derivative Liability, Fair Value, Gross Liability	104	108
Derivative Liability, Fair Value, Amount Offset Against Collateral	(73)	(77)
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	(3)	(7)
Derivative Liability	28	24
Derivative Financial Instruments, Liabilities [Member]
Offsetting Derivative Instruments [Line Items]
Derivative, Fair Value, Net	31	31
Derivative Financial Instruments, Assets [Member]
Offsetting Derivative Instruments [Line Items]
Derivative, Fair Value, Net	$ 37	$ 60

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Fair value of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be offset against an obligation to return collateral under a master netting arrangement.

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Fair value of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset offset against an obligation to return collateral. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fair value before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Fair value of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be offset against a right to receive collateral under a master netting arrangement.

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Fair value of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset offset against the right to receive collateral. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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