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UNCONSOLIDATED AFFILIATES (Details) $ in Millions	1 Months Ended	12 Months Ended
	Nov. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 25, 2023 unconsolidatedAffiliate
Schedule of Equity Method Investments [Line Items]
Number of unconsolidated affiliates | unconsolidatedAffiliate					8
Investments in unconsolidated affiliates		$ 1,874	$ 802	$ 798
Equity method goodwill		148	17
Equity in net earnings from investments		202	148	122
Incurred expenses		132	83	63
Contributions to unconsolidated affiliates		$ 207	3	1
Overland Pass
Schedule of Equity Method Investments [Line Items]
Net ownership percentage		50.00%
Investments in unconsolidated affiliates		$ 402	401
Equity in net earnings from investments		$ 56	33	19
Northern Border
Schedule of Equity Method Investments [Line Items]
Net ownership percentage		50.00%
Investments in unconsolidated affiliates		$ 338	265
Equity in net earnings from investments		$ 75	71	64
Contributions to unconsolidated affiliates	$ 91
Saddlehorn
Schedule of Equity Method Investments [Line Items]
Net ownership percentage		30.00%
Investments in unconsolidated affiliates		$ 288	0
Equity in net earnings from investments		$ 10	0	0
MVP
Schedule of Equity Method Investments [Line Items]
Net ownership percentage		25.00%
Investments in unconsolidated affiliates		$ 241	0
Equity in net earnings from investments		$ 4	0	0
Roadrunner
Schedule of Equity Method Investments [Line Items]
Net ownership percentage		50.00%
Investments in unconsolidated affiliates		$ 188	94
Equity in net earnings from investments		43	37	33
Contributions to unconsolidated affiliates		$ 105
BridgeTex
Schedule of Equity Method Investments [Line Items]
Net ownership percentage		30.00%
Investments in unconsolidated affiliates		$ 193	0
Equity in net earnings from investments		(1)	0	0
Other
Schedule of Equity Method Investments [Line Items]
Investments in unconsolidated affiliates		224	42
Equity in net earnings from investments		$ 15	$ 7	$ 6

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