Derivatives - Gains and Losses on Derivatives (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative instrument	$ 135	$ 399
Collars and Calls | Net sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative instrument	0	(72)
Marketing Derivatives | Net sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative instrument	135	180
Interest Rate Swaps | Gains on interest rate swaps, net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivative instrument	$ 135	$ 399