Derivative Financial Instruments and Risk Management (Details 2) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Derivatives Fair Value
Asset Fair Value	$ 170	$ 211
Liability Fair Value	(73)	(50)
Machinery, Energy & Transportation
Derivatives Fair Value
Asset Fair Value	51	73
Liability Fair Value	(61)	(40)
Financial Products
Derivatives Fair Value
Asset Fair Value	119	138
Liability Fair Value	(12)	(10)
Designated Derivatives
Derivatives Fair Value
Asset (Liability) Fair Value	83	131
Designated Derivatives | Foreign exchange contracts | Receivables-trade and other | Machinery, Energy & Transportation
Derivatives Fair Value
Asset Fair Value	38	54
Designated Derivatives | Foreign exchange contracts | Accrued Expenses | Machinery, Energy & Transportation
Derivatives Fair Value
Liability Fair Value	(19)	(39)
Designated Derivatives | Interest rate contracts | Receivables-trade and other | Financial Products
Derivatives Fair Value
Asset Fair Value	11	7
Designated Derivatives | Interest rate contracts | Long-term receivables-trade and other | Financial Products
Derivatives Fair Value
Asset Fair Value	97	115
Designated Derivatives | Interest rate contracts | Accrued Expenses | Machinery, Energy & Transportation
Derivatives Fair Value
Liability Fair Value	(38)	0
Designated Derivatives | Interest rate contracts | Accrued Expenses | Financial Products
Derivatives Fair Value
Liability Fair Value	(6)	(6)
Undesignated Derivatives
Derivatives Fair Value
Asset (Liability) Fair Value	14	30
Undesignated Derivatives | Foreign exchange contracts | Receivables-trade and other | Machinery, Energy & Transportation
Derivatives Fair Value
Asset Fair Value	12	19
Undesignated Derivatives | Foreign exchange contracts | Receivables-trade and other | Financial Products
Derivatives Fair Value
Asset Fair Value	4	7
Undesignated Derivatives | Foreign exchange contracts | Long-term receivables-trade and other | Financial Products
Derivatives Fair Value
Asset Fair Value	7	9
Undesignated Derivatives | Foreign exchange contracts | Accrued Expenses | Machinery, Energy & Transportation
Derivatives Fair Value
Liability Fair Value	(2)	(1)
Undesignated Derivatives | Foreign exchange contracts | Accrued Expenses | Financial Products
Derivatives Fair Value
Liability Fair Value	(6)	(4)
Undesignated Derivatives | Commodity contracts | Receivables-trade and other | Machinery, Energy & Transportation
Derivatives Fair Value
Asset Fair Value	1	0
Undesignated Derivatives | Commodity contracts | Accrued Expenses | Machinery, Energy & Transportation
Derivatives Fair Value
Liability Fair Value	$ (2)	$ 0