Derivative and Other Financial Instruments (Fair Values of Outstanding Derivative Instruments in the Consolidated Balance Sheets) (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Derivative assets
Total	$ 42	$ 22
Derivative liabilities
Total	52	45
Designated as Hedging Instrument [Member] \| Other Current Assets [Member] \| Foreign Exchange [Member] \| Level 2 [Member]
Derivative assets
Foreign exchange	32	20
Designated as Hedging Instrument [Member] \| Other Current Assets [Member] \| Commodities [Member] \| Level 1 [Member]
Derivative assets
Commodities	5	$ 2
Designated as Hedging Instrument [Member] \| Other Non-current Assets [Member] \| Commodities [Member] \| Level 1 [Member]
Derivative assets
Commodities	2
Designated as Hedging Instrument [Member] \| Accounts Payable and Accrued Liabilities [Member] \| Foreign Exchange [Member] \| Level 2 [Member]
Derivative liabilities
Foreign exchange	14	$ 20
Designated as Hedging Instrument [Member] \| Accounts Payable and Accrued Liabilities [Member] \| Commodities [Member] \| Level 1 [Member]
Derivative liabilities
Commodities	26	$ 10
Designated as Hedging Instrument [Member] \| Other Non-current Liabilities [Member] \| Commodities [Member] \| Level 1 [Member]
Derivative liabilities
Commodities	5
Not Designated as Hedging Instrument [Member] \| Other Current Assets [Member] \| Commodities [Member] \| Level 1 [Member]
Derivative assets
Commodities	3
Not Designated as Hedging Instrument [Member] \| Accounts Payable and Accrued Liabilities [Member] \| Foreign Exchange [Member] \| Level 2 [Member]
Derivative liabilities
Foreign exchange	2	$ 15
Not Designated as Hedging Instrument [Member] \| Accounts Payable and Accrued Liabilities [Member] \| Commodities [Member] \| Level 1 [Member]
Derivative liabilities
Commodities	$ 5

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+ References

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-Publisher FASB
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+ References

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