Derivative Financial Instruments and Risk Management (Details 2) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Designated derivatives
Derivatives Fair Value
Asset (Liability) Fair Value	$ 322	$ 244
Designated derivatives | Foreign exchange contracts | Receivables - trade and other | Machinery and Power Systems
Derivatives Fair Value
Asset Fair Value	65	65
Designated derivatives | Foreign exchange contracts | Long-term receivables - trade and other | Machinery and Power Systems
Derivatives Fair Value
Asset Fair Value	57	52
Designated derivatives | Foreign exchange contracts | Accrued expenses | Machinery and Power Systems
Derivatives Fair Value
Liability Fair Value	(58)	(66)
Designated derivatives | Foreign exchange contracts | Other liabilities | Machinery and Power Systems
Derivatives Fair Value
Liability Fair Value	(4)	(1)
Designated derivatives | Interest rate contracts | Receivables - trade and other | Machinery and Power Systems
Derivatives Fair Value
Asset Fair Value		1
Designated derivatives | Interest rate contracts | Receivables - trade and other | Financial Products
Derivatives Fair Value
Asset Fair Value	11	14
Designated derivatives | Interest rate contracts | Long-term receivables - trade and other | Financial Products
Derivatives Fair Value
Asset Fair Value	258	197
Designated derivatives | Interest rate contracts | Accrued expenses | Financial Products
Derivatives Fair Value
Liability Fair Value	(7)	(18)
Undesignated derivatives
Derivatives Fair Value
Asset (Liability) Fair Value	(61)	23
Undesignated derivatives | Foreign exchange contracts | Receivables - trade and other | Machinery and Power Systems
Derivatives Fair Value
Asset Fair Value	81	120
Undesignated derivatives | Foreign exchange contracts | Receivables - trade and other | Financial Products
Derivatives Fair Value
Asset Fair Value	13	6
Undesignated derivatives | Foreign exchange contracts | Long-term receivables - trade and other | Machinery and Power Systems
Derivatives Fair Value
Asset Fair Value	1
Undesignated derivatives | Foreign exchange contracts | Accrued expenses | Machinery and Power Systems
Derivatives Fair Value
Liability Fair Value	(31)	(46)
Undesignated derivatives | Foreign exchange contracts | Accrued expenses | Financial Products
Derivatives Fair Value
Liability Fair Value	(20)	(9)
Undesignated derivatives | Foreign exchange contracts | Other liabilities | Machinery and Power Systems
Derivatives Fair Value
Liability Fair Value	(90)	(58)
Undesignated derivatives | Interest rate contracts | Accrued expenses | Machinery and Power Systems
Derivatives Fair Value
Liability Fair Value		(6)
Undesignated derivatives | Interest rate contracts | Accrued expenses | Financial Products
Derivatives Fair Value
Liability Fair Value	(1)	(1)
Undesignated derivatives | Receivables - trade and other | Machinery and Power Systems
Derivatives Fair Value
Asset Fair Value	$ 3	$ 17