Equity Method Investments - Equity Investments in Affiliates Balance Affected (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Schedule of Equity Method Investments [Line Items]
Income from equity method investments	$ 108	$ 102
Mattox
Schedule of Equity Method Investments [Line Items]
Income from equity method investments	15	15
Amberjack
Schedule of Equity Method Investments [Line Items]
Income from equity method investments	28	29
Mars
Schedule of Equity Method Investments [Line Items]
Income from equity method investments	29	29
Bengal
Schedule of Equity Method Investments [Line Items]
Income from equity method investments	2	3
Explorer
Schedule of Equity Method Investments [Line Items]
Income from equity method investments	10	7
Colonial
Schedule of Equity Method Investments [Line Items]
Income from equity method investments	21	15
Other
Schedule of Equity Method Investments [Line Items]
Income from equity method investments	$ 3	$ 4