Investments in Unconsolidated Affiliates (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated affiliates	$ 2,356		$ 2,356		$ 2,428
Equity in income of unconsolidated affiliates by business segment [Abstract]
Equity in income of unconsolidated affiliates	111	$ 137	335	$ 447
NGL Pipelines & Services [Member]
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated affiliates	645		645		656
Equity in income of unconsolidated affiliates by business segment [Abstract]
Equity in income of unconsolidated affiliates	39	31	109	88
Crude Oil Pipelines & Services [Member]
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated affiliates	1,676		1,676		1,738
Equity in income of unconsolidated affiliates by business segment [Abstract]
Equity in income of unconsolidated affiliates	70	105	221	354
Natural Gas Pipelines & Services [Member]
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated affiliates	32		32		31
Equity in income of unconsolidated affiliates by business segment [Abstract]
Equity in income of unconsolidated affiliates	2	1	4	4
Petrochemical & Refined Products Services [Member]
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated affiliates	3		3		$ 3
Equity in income of unconsolidated affiliates by business segment [Abstract]
Equity in income of unconsolidated affiliates	$ 0	$ 0	$ 1	$ 1