Fair Value Measurements, Derivative Instruments and Hedging Activities - Offsetting Derivative Instruments (Details) (USD $) In Millions, unless otherwise specified	Feb. 28, 2015	Nov. 30, 2014
Assets
Gross Amounts	$ 58	$ 78
Gross Amounts Offset in the Balance Sheet	(39)	(64)
Total Net Amounts Presented in the Balance Sheet	19	14
Gross Amounts not Offset in the Balance Sheet	(18)	(14)
Net Amounts	1us-gaap_DerivativeAssets	0us-gaap_DerivativeAssets
Liabilities
Gross Amounts	431	342
Gross Amounts Offset in the Balance Sheet	(39)	(64)
Total Net Amounts Presented in the Balance Sheet	392	278
Gross Amounts not Offset in the Balance Sheet	(18)	(14)
Net Amounts	$ 374us-gaap_DerivativeLiabilities	$ 264us-gaap_DerivativeLiabilities

Derivative, Collateral, Obligation to Return Securities and Cash

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Derivative, Collateral, Right to Reclaim Securities and Cash

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Fair value of liability associated with 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, 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, after offset of derivative liability, 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, before offset against an obligation to return collateral under a master netting arrangement. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, after offset of derivative asset, 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 and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Fair value, after the 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. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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Fair value of asset associated with 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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