Hedges and Derivative Financial Instruments - Schedule of Outstanding Derivative Contracts (Details) - USD ($)	9 Months Ended	12 Months Ended
Sep. 30, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Fair value of hedged assets	$ 145,000,000	$ 144,000,000
Fair value of hedged liabilities	160,000,000	139,000,000
Derivative asset at fair value, current	105,000,000	55,000,000
Derivative asset at fair value, noncurrent	40,000,000	89,000,000
Total derivatives, hedge assets at fair value	145,000,000	144,000,000
Derivative liability at fair value, current	80,000,000	61,000,000
Derivative liability at fair value, noncurrent	80,000,000	78,000,000
Total derivatives, hedge liabilities at fair value	160,000,000	139,000,000
Derivatives accounted for as hedges
Derivatives, Fair Value [Line Items]
Fair value of hedged assets	117,000,000	129,000,000
Fair value of hedged liabilities	105,000,000	117,000,000
Derivatives accounted for as hedges \| Commodity swaps/options
Derivatives, Fair Value [Line Items]
Notional amount	223,000,000	174,000,000
Fair value of hedged assets	19,000,000	4,000,000
Fair value of hedged liabilities	$ 14,000,000	$ 10,000,000
Maximum term of commodity swaps/options (in months)	33 months	21 months
Derivatives accounted for as hedges \| Foreign exchange forwards/options
Derivatives, Fair Value [Line Items]
Notional amount	$ 2,901,000,000	$ 3,177,000,000
Fair value of hedged assets	72,000,000	94,000,000
Fair value of hedged liabilities	$ 29,000,000	$ 84,000,000
Maximum term of foreign exchange forwards/options (in months)	137 months	32 months
Derivatives accounted for as hedges \| Cross-currency swaps
Derivatives, Fair Value [Line Items]
Notional amount	$ 1,275,000,000	$ 1,275,000,000
Fair value of hedged assets	26,000,000	25,000,000
Fair value of hedged liabilities	$ 16,000,000	$ 23,000,000
Maximum term of cross-currency swaps (in months)	101 months	110 months
Derivatives accounted for as hedges \| Interest rate derivatives
Derivatives, Fair Value [Line Items]
Notional amount	$ 300,000,000	$ 300,000,000
Fair value of hedged assets	0	6,000,000
Fair value of hedged liabilities	$ 46,000,000	$ 0
Maximum term of interest rate derivatives (in months)	56 months	65 months
Derivatives not accounted for as hedges
Derivatives, Fair Value [Line Items]
Fair value of hedged assets	$ 28,000,000	$ 15,000,000
Fair value of hedged liabilities	55,000,000	22,000,000
Derivatives not accounted for as hedges \| Commodity swaps/options
Derivatives, Fair Value [Line Items]
Notional amount	1,000,000	1,000,000
Fair value of hedged assets	0	0
Fair value of hedged liabilities	$ 0	$ 0
Maximum term of commodity swaps/options (in months)	0 months	7 months
Derivatives not accounted for as hedges \| Foreign exchange forwards/options
Derivatives, Fair Value [Line Items]
Notional amount	$ 3,602,000,000	$ 3,182,000,000
Fair value of hedged assets	28,000,000	15,000,000
Fair value of hedged liabilities	$ 55,000,000	$ 22,000,000
Maximum term of foreign exchange forwards/options (in months)	12 months	12 months

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