Hedges and Derivative Financial Instruments - Schedule of Outstanding Derivative Contracts (Details) - USD ($)	9 Months Ended	12 Months Ended
Sep. 30, 2019	Dec. 31, 2018
Derivatives, Fair Value [Line Items]
Fair value of hedged assets	$ 190,000,000	$ 77,000,000
Fair value of hedged liabilities	86,000,000	144,000,000
Derivative asset at fair value, current	97,000,000	60,000,000
Derivative asset at fair value, noncurrent	93,000,000	17,000,000
Total derivatives, hedge assets at fair value	190,000,000	77,000,000
Derivative liability at fair value, current	48,000,000	95,000,000
Derivative liability at fair value, noncurrent	38,000,000	49,000,000
Total derivatives, hedge liabilities at fair value	86,000,000	144,000,000
Derivatives accounted for as hedges
Derivatives, Fair Value [Line Items]
Fair value of hedged assets	144,000,000	50,000,000
Fair value of hedged liabilities	64,000,000	75,000,000
Derivatives accounted for as hedges \| Foreign exchange forwards/options
Derivatives, Fair Value [Line Items]
Notional Amount	3,093,000,000	3,126,000,000
Fair value of hedged assets	113,000,000	49,000,000
Fair value of hedged liabilities	$ 43,000,000	$ 48,000,000
Maximum term of foreign exchange forwards/options	35 months	44 months
Derivatives accounted for as hedges \| Commodity swaps/options
Derivatives, Fair Value [Line Items]
Notional Amount	$ 181,000,000	$ 216,000,000
Fair value of hedged assets	4,000,000	1,000,000
Fair value of hedged liabilities	$ 18,000,000	$ 27,000,000
Maximum term of commodity swaps/options	21 months	30 months
Derivatives accounted for as hedges \| Interest rate derivatives
Derivatives, Fair Value [Line Items]
Notional Amount	$ 1,275,000,000	$ 0
Fair value of hedged assets	27,000,000	0
Fair value of hedged liabilities	$ 3,000,000	$ 0
Maximum term of commodity swaps/options	113 months	0 months
Derivatives not accounted for as hedges
Derivatives, Fair Value [Line Items]
Fair value of hedged assets	$ 46,000,000	$ 27,000,000
Fair value of hedged liabilities	22,000,000	69,000,000
Derivatives not accounted for as hedges \| Foreign exchange forwards/options
Derivatives, Fair Value [Line Items]
Notional Amount	2,952,000,000	4,382,000,000
Fair value of hedged assets	46,000,000	27,000,000
Fair value of hedged liabilities	$ 22,000,000	$ 69,000,000
Maximum term of foreign exchange forwards/options	13 months	21 months
Derivatives not accounted for as hedges \| Commodity swaps/options
Derivatives, Fair Value [Line Items]
Notional Amount	$ 3,000,000	$ 3,000,000
Fair value of hedged assets	0	0
Fair value of hedged liabilities	$ 0	$ 0
Maximum term of commodity swaps/options	10 months	0 months

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