Derivative Financial Instruments and Risk Management (Details 3) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2012	Mar. 31, 2011
Derivative Instruments Gain (Loss)
Gains (Losses) on Derivatives	$ (9)	$ (54)
Gains (Losses) on Borrowings	15	53
Amount of Gains (Losses) Recognized in AOCI (Effective Portion)	42	27
Amount of Gains (Losses) Reclassified from AOCI (Effective Portion)	3	12
Recognized in Earnings (Ineffective Portion)		1
Gains (Losses) on derivatives not designated as hedging instruments	78	11
Machinery and Power Systems
Derivative Instruments Gain (Loss)
Foreign exchange contracts, Amount of Gains (Losses) Recognized in AOCI (Effective Portion)	42	27
Other Income (Expense) \| Machinery and Power Systems
Derivative Instruments Gain (Loss)
Gains (Losses) on Derivatives		(1)
Gains (Losses) on Borrowings		1
Foreign exchange contracts, Amount of Gains (Losses) Reclassified from AOCI (Effective Portion)	5	18
Interest rate contracts, Amount of Gains (Losses) Reclassified from AOCI (Effective Portion)	(1)
Foreign exchange contracts, Gains (Losses) on derivatives not designated as hedging instruments	65	32
Interest rate contracts, Gains (Losses) on derivatives not designated as hedging instruments		25
Commodity contracts, Gains (Losses) on derivatives not designated as hedging instruments	6	4
Other Income (Expense) \| Financial Products
Derivative Instruments Gain (Loss)
Gains (Losses) on Derivatives	(9)	(53)
Gains (Losses) on Borrowings	15	52
Foreign exchange contracts, Gains (Losses) on derivatives not designated as hedging instruments	7
Interest expense of Financial Products \| Financial Products
Derivative Instruments Gain (Loss)
Interest rate contracts, Amount of Gains (Losses) Reclassified from AOCI (Effective Portion)	(1)	(6)
Interest rate contracts, Recognized in Earnings (Ineffective Portion)		$ 1

The amount of net gains or losses on a cash flow hedge reclassified in the period to earnings from accumulated other comprehensive income.

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Net gain (loss) from the increase (decrease) in fair value of derivative instrument not designated as hedging instrument.

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The amount of net gains or losses on foreign currency cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

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The net gain (loss) recognized in earnings during the reporting period representing the amount of the cash flow hedges' ineffectiveness.

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Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

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The net gain (loss) during the reporting period due to ineffectiveness in interest rate cash flow hedges. Recognized in earnings.

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Amount of gain (loss) included in earnings for the period from the increase (decrease) in fair value of interest rate derivatives not designated as hedging instruments.

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Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of price risk derivatives not designated as hedging instruments.

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Amount of unrealized gain (loss) included in earnings for the period related to the fair value of the hedged item in an interest rate fair value hedge, which was offset by the gain (loss) on the hedging instrument to the extent that the fair value hedge is determined to be effective.

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Amount of unrealized gain (loss) related to the fair value of interest rate derivatives designated as fair value hedging instruments. Recognized in earnings and offsets the gain (loss) on the hedged item to the extent that the fair value hedge is determined to be effective.

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Amount of unrealized gain (loss) related to derivatives designated as cash flow hedging instruments, recorded in results of operations to the extent that the cash flow hedge is determined to be ineffective.

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Amount of net unrealized gain (loss) related to the change in fair value of foreign currency exchange rate derivatives designated as cash flow hedging instruments. Recorded in accumulated other comprehensive income to the extent that the cash flow hedge is determined to be effective.

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