Derivative and Other Financial Instruments - Fair Values of Derivative Instruments and Valuation Hierarchy (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Derivative assets
Total	$ 28	$ 63
Derivative liabilities
Total	78	23
Derivatives in cash flow hedges \| Fair Value, Inputs, Level 2 \| Other current assets \| Foreign exchange \| Designated as Hedging Instrument
Derivative assets
Derivatives designated as hedges, Foreign exchange	7	5
Derivatives in cash flow hedges \| Fair Value, Inputs, Level 2 \| Other current assets \| Foreign exchange \| Derivatives not designated as hedges
Derivative assets
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	1	1
Derivatives in cash flow hedges \| Fair Value, Inputs, Level 2 \| Other current assets \| Commodities \| Designated as Hedging Instrument
Derivative assets
Derivatives designated as hedges, Commodities	17	25
Derivatives in cash flow hedges \| Fair Value, Inputs, Level 2 \| Other current assets \| Commodities \| Derivatives not designated as hedges
Derivative assets
Derivatives designated as hedges, Commodities	0	22
Derivatives in cash flow hedges \| Fair Value, Inputs, Level 2 \| Accrued liabilities \| Foreign exchange \| Designated as Hedging Instrument
Derivative liabilities
Derivatives designated as hedges, Foreign exchange	11	6
Derivatives in cash flow hedges \| Fair Value, Inputs, Level 2 \| Accrued liabilities \| Foreign exchange \| Derivatives not designated as hedges
Derivative liabilities
Derivatives not designated as hedges, Foreign exchange	1	1
Derivatives in cash flow hedges \| Fair Value, Inputs, Level 2 \| Accrued liabilities \| Commodities \| Designated as Hedging Instrument
Derivative liabilities
Derivatives designated as hedges, Commodities	21	0
Derivatives in cash flow hedges \| Fair Value, Inputs, Level 2 \| Accrued liabilities \| Commodities \| Derivatives not designated as hedges
Derivative liabilities
Derivatives designated as hedges, Commodities	0	15
Derivatives in cash flow hedges \| Fair Value, Inputs, Level 2 \| Other non-current assets \| Commodities \| Designated as Hedging Instrument
Derivative assets
Derivatives designated as hedges, Commodities	1	4
Derivatives in cash flow hedges \| Fair Value, Inputs, Level 2 \| Other non-current liabilities \| Foreign exchange \| Designated as Hedging Instrument
Derivative liabilities
Derivatives designated as hedges, Foreign exchange	1	0
Derivatives in cash flow hedges \| Fair Value, Inputs, Level 2 \| Other non-current liabilities \| Commodities \| Designated as Hedging Instrument
Derivative liabilities
Derivatives designated as hedges, Commodities	4	0
Derivatives in fair value hedges \| Accrued liabilities \| Designated as Hedging Instrument
Derivative liabilities
Derivatives designated as hedges, Foreign exchange	22	12
Derivatives in fair value hedges \| Fair Value, Inputs, Level 2 \| Other current assets \| Foreign exchange \| Designated as Hedging Instrument
Derivative assets
Derivatives designated as hedges, Foreign exchange	1	1
Derivatives in fair value hedges \| Fair Value, Inputs, Level 2 \| Other current assets \| Foreign exchange \| Derivatives not designated as hedges
Derivative assets
Derivatives designated as hedges, Foreign exchange	1	5
Derivatives in fair value hedges \| Fair Value, Inputs, Level 2 \| Accrued liabilities \| Foreign exchange \| Designated as Hedging Instrument
Derivative liabilities
Derivatives designated as hedges, Foreign exchange	1	1
Derivatives in fair value hedges \| Fair Value, Inputs, Level 2 \| Accrued liabilities \| Foreign exchange \| Derivatives not designated as hedges
Derivative liabilities
Derivatives not designated as hedges, Foreign exchange	2	0
Derivatives designated as net investment hedges \| Fair Value, Inputs, Level 2 \| Other non-current liabilities \| Foreign exchange \| Designated as Hedging Instrument
Derivative liabilities
Derivatives designated as hedges, Commodities	$ 37	$ 0

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
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-Publisher FASB
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-Publisher FASB
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+ References

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

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