Derivative Financial Instruments and Risk Management (Details 5) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Offsetting Assets
Gross Amount of Recognized Assets	$ 132	$ 128
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	132	128
Financial Instruments	(34)	(35)
Cash Collateral Received	0	0
Net Amount of Assets	98us-gaap_DerivativeAssets	93us-gaap_DerivativeAssets
Machinery, Energy & Transportation
Offsetting Assets
Gross Amount of Recognized Assets	20	27
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	20	27
Financial Instruments	(20)	(27)
Cash Collateral Received	0	0
Net Amount of Assets	0	0
Financial Products
Offsetting Assets
Gross Amount of Recognized Assets	112	101
Gross Amounts Offset in the Statement of Financial Position	0	0
Net Amount of Assets Presented in the Statement of Financial Position	112	101
Financial Instruments	(14)	(8)
Cash Collateral Received	0	0
Net Amount of Assets	$ 98	$ 93

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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