Derivative Instruments - Derivatives and Hedges (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Commodity forward contracts | Cash Flow Hedges
Derivatives and Hedges
Unrecognized (loss) gain included in Accumulated OCI	$ (2)	$ 1	$ 3
Cross-currency swap | Cash Flow Hedges
Derivatives and Hedges
Unrecognized (loss) gain included in Accumulated OCI	(4)	(1)	(11)
Interest rate swaps | Cash Flow Hedges | Maximum
Derivatives and Hedges
Unrecognized (loss) gain included in Accumulated OCI	(1)	(1)	(1)
Interest rate swaps | Net investment hedges
Derivatives and Hedges
Unrecognized (loss) gain included in Accumulated OCI	$ 10	$ 8	$ 7