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Derivative Instruments and Fair Value Measurements - Assets and liabilities not recorded at fair value (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Manufacturing group | Carrying Value
Financial instruments not reflected at fair value
Debt, excluding leases	$ (3,358)	$ (2,690)
Manufacturing group | Estimated Fair Value
Financial instruments not reflected at fair value
Debt, excluding leases	(3,504)	(2,809)
Finance group
Financial instruments not reflected at fair value
Debt	(841)	(903)
Finance group | Carrying Value
Financial instruments not reflected at fair value
Finance receivables, excluding leases	617	729
Debt	(841)	(903)
Finance group | Estimated Fair Value
Financial instruments not reflected at fair value
Finance receivables, excluding leases	656	758
Debt	$ (810)	$ (831)

X

- Definition

Represents debt, excluding leases.

+ References

No definition available.

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- Definition

Finance receivables held for investment, excluding leases.

+ References

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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 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

Reference 2: 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

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ 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=77997519&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=77997519&loc=d3e13476-108611

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