Derivative Instruments and Fair Value Measurements (Details 3) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Manufacturing group \| Carrying Value
Carrying value of financial instruments not recorded at fair value
Long-term debt, excluding leases	$ (2,189)	$ (2,328)
Manufacturing group \| Estimated Fair Value
Carrying value of financial instruments not recorded at fair value
Long-term debt, excluding leases	(2,536)	(2,561)
Finance group
Carrying value of financial instruments not recorded at fair value
Portion of fair value of term debt determined based on observable market transactions (as a percent)	43.00%	53.00%
Debt	(1,810)	(1,974)
Finance group \| Carrying Value
Carrying value of financial instruments not recorded at fair value
Finance receivables held for investment, excluding leases	1,750	1,997
Debt	(1,810)	(1,974)
Finance group \| Estimated Fair Value
Carrying value of financial instruments not recorded at fair value
Finance receivables held for investment, excluding leases	1,676	1,848
Debt	$ (1,749)	$ (1,854)

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Finance receivables held for investment, excluding leases.

+ References

No definition available.

+ Details

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- Definition

Long-term debt, excluding leases.

+ References

No definition available.

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- Definition

Portion of fair value of term debt determined based on observable market transactions.

+ References

No definition available.

+ Details

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- Definition

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.13,16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 10

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13476-108611

+ Details

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