Hedges and Derivative Financial Instruments - Schedule of Outstanding Derivative Contracts (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Hedge Assets	$ 232	$ 145
Hedge Liabilities	208	324
Derivative asset at fair value, current	164	103
Derivative asset at fair value, noncurrent	68	42
Total derivatives, hedge assets at fair value	232	145
Derivative liability at fair value, current	98	152
Derivative liability at fair value, noncurrent	110	172
Total derivatives, hedge liabilities at fair value	208	324
Derivatives accounted for as hedges
Derivatives, Fair Value [Line Items]
Hedge Assets	184	120
Hedge Liabilities	153	228
Derivatives accounted for as hedges \| Commodity swaps/options
Derivatives, Fair Value [Line Items]
Notional Amount	248	215
Hedge Assets	48	39
Hedge Liabilities	$ 1	$ 4
Maximum term of commodity swaps/options (in months)	27 months	30 months
Derivatives accounted for as hedges \| Foreign exchange forwards/options
Derivatives, Fair Value [Line Items]
Notional Amount	$ 3,051	$ 3,028
Hedge Assets	92	58
Hedge Liabilities	$ 91	$ 110
Maximum term of foreign exchange forwards/options (in months)	131 months	134 months
Derivatives accounted for as hedges \| Cross-currency swaps
Derivatives, Fair Value [Line Items]
Notional Amount	$ 1,275	$ 1,275
Hedge Assets	25	23
Hedge Liabilities	$ 61	$ 86
Maximum term of cross-currency swaps (in months)	95 months	98 months
Derivatives accounted for as hedges \| Interest rate derivatives
Derivatives, Fair Value [Line Items]
Notional Amount	$ 300	$ 300
Hedge Assets	19	0
Hedge Liabilities	$ 0	$ 28
Maximum term of interest rate derivatives (in months)	50 months	53 months
Derivatives not accounted for as hedges
Derivatives, Fair Value [Line Items]
Hedge Assets	$ 48	$ 25
Hedge Liabilities	55	96
Derivatives not accounted for as hedges \| Commodity swaps/options
Derivatives, Fair Value [Line Items]
Notional Amount	1	1
Hedge Assets	0	0
Hedge Liabilities	$ 0	$ 0
Maximum term of commodity swaps/options (in months)	0 months	0 months
Derivatives not accounted for as hedges \| Foreign exchange forwards/options
Derivatives, Fair Value [Line Items]
Notional Amount	$ 3,621	$ 4,161
Hedge Assets	48	25
Hedge Liabilities	$ 55	$ 96
Maximum term of foreign exchange forwards/options (in months)	9 months	12 months

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