Investments in Unconsolidated Entities - Equity Method Investments (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Investments in Unconsolidated Entities
Investments in unconsolidated entities	$ 2,811	$ 2,820	$ 3,084
BridgeTex Pipeline Company, LLC (“BridgeTex”)
Investments in Unconsolidated Entities
Ownership interest in unconsolidated entity	20.00%
Investments in unconsolidated entities	$ 403	363
Capline Pipeline Company LLC (“Capline”)
Investments in Unconsolidated Entities
Ownership interest in unconsolidated entity	54.00%
Investments in unconsolidated entities	$ 501	535
Diamond Pipeline LLC
Investments in Unconsolidated Entities
Ownership interest in unconsolidated entity	50.00%
Investments in unconsolidated entities	$ 440	450
Eagle Ford Pipeline LLC
Investments in Unconsolidated Entities
Ownership interest in unconsolidated entity	50.00%
Investments in unconsolidated entities	$ 364	370
Eagle Ford Terminals Corpus Christi LLC
Investments in Unconsolidated Entities
Ownership interest in unconsolidated entity	50.00%
Investments in unconsolidated entities	$ 113	116
Saddlehorn Pipeline Company, LLC (“Saddlehorn”)
Investments in Unconsolidated Entities
Ownership interest in unconsolidated entity	40.00%
Investments in unconsolidated entities	$ 275	192
White Cliffs Pipeline, L.L.C.
Investments in Unconsolidated Entities
Ownership interest in unconsolidated entity	36.00%
Investments in unconsolidated entities	$ 123	138
Wink to Webster Pipeline LLC (“W2W Pipeline”)
Investments in Unconsolidated Entities
Ownership interest in unconsolidated entity	17.00%
Investments in unconsolidated entities	$ 393	380
Other investments
Investments in Unconsolidated Entities
Investments in unconsolidated entities	$ 199	$ 276