Derivative Financial Instruments and Risk Management (Details 3) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Derivative Instruments, Gain (Loss)
Gains (Losses) on Derivatives	$ (29)	$ (9)
Gains (Losses) on Borrowings	30	15
Amount of Gains (Losses) Recognized in AOCI (Effective Portion)	(49)	(42)
Amount of Gains (Losses) Reclassified from AOCI to Earnings	(18)	3
Recognized in Earnings (Ineffective Portion)	0	0
Gains or (Losses) on derivatives not designated as hedging instruments	(36)	78
Machinery and Power Systems
Derivative Instruments, Gain (Loss)
Foreign exchange contracts, Amount of Gains (Losses) Recognized in AOCI (Effective Portion)	(49)	(42)
Interest rate contracts, Amount of Gains (Losses) Recognized in AOCI (Effective Portion)		0
Financial Products
Derivative Instruments, Gain (Loss)
Interest rate contracts, Amount of Gains (Losses) Recognized in AOCI (Effective Portion)	0	0
Other Income (Expense) \| Machinery and Power Systems
Derivative Instruments, Gain (Loss)
Foreign exchange contracts, Amount of Gains (Losses) Reclassified from AOCI to Earnings	(17)	5
Foreign exchange contracts, Recognized in Earnings (Ineffective Portion)	0	0
Interest rate contracts, Amount of Gains (Losses) Reclassified from AOCI to Earnings		(1)
Interest rate contracts, Recognized in Earnings (Ineffective Portion)		0
Gains (Losses) reclassified from AOCI to earnings for derivatives dedesignated as related transactions are no longer probable to occur	(3)
Foreign exchange contracts, Gains or (Losses) on derivatives not designated as hedging instruments	(20)	65
Commodity contracts, Gains or (Losses) on derivatives not designated as hedging instruments	(1)	6
Other Income (Expense) \| Financial Products
Derivative Instruments, Gain (Loss)
Gains (Losses) on Derivatives	(29)	(9)
Gains (Losses) on Borrowings	30	15
Foreign exchange contracts, Gains or (Losses) on derivatives not designated as hedging instruments	(15)	7
Interest Expense \| Financial Products
Derivative Instruments, Gain (Loss)
Interest rate contracts, Amount of Gains (Losses) Reclassified from AOCI to Earnings	(1)	(1)
Interest rate contracts, Recognized in Earnings (Ineffective Portion)	$ 0	$ 0

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7668309&loc=d3e80784-113994

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

-Paragraph 45

-Subparagraph b(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.