Derivative Financial instruments and Risk Management- Asset (liability) fair value (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Derivatives Fair Value
Asset Fair Value	$ 181	$ 131
Liability Fair Value	(126)	(150)
Machinery, Energy & Transportation
Derivatives Fair Value
Asset Fair Value	28	19
Liability Fair Value	(45)	(87)
Financial Products
Derivatives Fair Value
Asset Fair Value	153	112
Liability Fair Value	(81)	(63)
Designated Derivatives
Derivatives Fair Value
Asset (Liability) Fair Value	47	24
Designated Derivatives \| Foreign exchange contracts \| Receivables-trade and other \| Machinery, Energy & Transportation
Derivatives Fair Value
Asset Fair Value	23	16
Designated Derivatives \| Foreign exchange contracts \| Receivables-trade and other \| Financial Products
Derivatives Fair Value
Asset Fair Value	59	53
Designated Derivatives \| Foreign exchange contracts \| Long-term receivables-trade and other \| Machinery, Energy & Transportation
Derivatives Fair Value
Asset Fair Value	1	0
Designated Derivatives \| Foreign exchange contracts \| Long-term receivables-trade and other \| Financial Products
Derivatives Fair Value
Asset Fair Value	59	35
Designated Derivatives \| Foreign exchange contracts \| Accrued Expenses \| Machinery, Energy & Transportation
Derivatives Fair Value
Liability Fair Value	(35)	(26)
Designated Derivatives \| Foreign exchange contracts \| Accrued Expenses \| Financial Products
Derivatives Fair Value
Liability Fair Value	(6)	(9)
Designated Derivatives \| Foreign exchange contracts \| Other Liabilities \| Machinery, Energy & Transportation
Derivatives Fair Value
Liability Fair Value	0	(9)
Designated Derivatives \| Interest rate contracts \| Receivables-trade and other \| Financial Products
Derivatives Fair Value
Asset Fair Value	0	1
Designated Derivatives \| Interest rate contracts \| Long-term receivables-trade and other \| Financial Products
Derivatives Fair Value
Asset Fair Value	7	3
Designated Derivatives \| Interest rate contracts \| Accrued Expenses \| Financial Products
Derivatives Fair Value
Liability Fair Value	(61)	(40)
Undesignated Derivatives
Derivatives Fair Value
Asset (Liability) Fair Value	8	(43)
Undesignated Derivatives \| Foreign exchange contracts \| Receivables-trade and other \| Machinery, Energy & Transportation
Derivatives Fair Value
Asset Fair Value	2	2
Undesignated Derivatives \| Foreign exchange contracts \| Receivables-trade and other \| Financial Products
Derivatives Fair Value
Asset Fair Value	22	15
Undesignated Derivatives \| Foreign exchange contracts \| Long-term receivables-trade and other \| Financial Products
Derivatives Fair Value
Asset Fair Value	6	5
Undesignated Derivatives \| Foreign exchange contracts \| Accrued Expenses \| Machinery, Energy & Transportation
Derivatives Fair Value
Liability Fair Value	(1)	(21)
Undesignated Derivatives \| Foreign exchange contracts \| Accrued Expenses \| Financial Products
Derivatives Fair Value
Liability Fair Value	(14)	(14)
Undesignated Derivatives \| Commodity contracts \| Receivables-trade and other \| Machinery, Energy & Transportation
Derivatives Fair Value
Asset Fair Value	2	1
Undesignated Derivatives \| Commodity contracts \| Accrued Expenses \| Machinery, Energy & Transportation
Derivatives Fair Value
Liability Fair Value	$ (9)	$ (31)

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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+ References

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- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
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