Revenues, Revenues by Business Segment and Revenue Type (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenue [Abstract]
Revenues	$ 13,483	$ 10,651	$ 28,243	$ 23,095
NGL Pipelines & Services [Member]
Revenue [Abstract]
Revenues	4,265	3,689	9,405	8,618
NGL Pipelines & Services [Member] | Sales of NGLs and Related Products [Member]
Revenue [Abstract]
Revenues	3,581	3,040	7,981	7,304
NGL Pipelines & Services [Member] | Midstream Services [Member]
Revenue [Abstract]
Revenues	684	649	1,424	1,314
NGL Pipelines & Services [Member] | Midstream Services: Natural Gas Processing and Fractionation [Member]
Revenue [Abstract]
Revenues	336	300	694	600
NGL Pipelines & Services [Member] | Midstream Services: Transportation [Member]
Revenue [Abstract]
Revenues	263	246	542	512
NGL Pipelines & Services [Member] | Midstream Services: Storage and Terminals [Member]
Revenue [Abstract]
Revenues	85	103	188	202
Crude Oil Pipelines & Services [Member]
Revenue [Abstract]
Revenues	5,888	4,304	11,303	8,485
Crude Oil Pipelines & Services [Member] | Sales of Crude Oil [Member]
Revenue [Abstract]
Revenues	5,598	4,005	10,720	7,931
Crude Oil Pipelines & Services [Member] | Midstream Services [Member]
Revenue [Abstract]
Revenues	290	299	583	554
Crude Oil Pipelines & Services [Member] | Midstream Services: Transportation [Member]
Revenue [Abstract]
Revenues	190	200	383	355
Crude Oil Pipelines & Services [Member] | Midstream Services: Storage and Terminals [Member]
Revenue [Abstract]
Revenues	100	99	200	199
Natural Gas Pipelines & Services [Member]
Revenue [Abstract]
Revenues	612	775	1,466	1,990
Natural Gas Pipelines & Services [Member] | Sales of Natural Gas [Member]
Revenue [Abstract]
Revenues	241	445	744	1,291
Natural Gas Pipelines & Services [Member] | Midstream Services [Member]
Revenue [Abstract]
Revenues	371	330	722	699
Natural Gas Pipelines & Services [Member] | Midstream Services: Transportation [Member]
Revenue [Abstract]
Revenues	371	330	722	699
Petrochemical & Refined Products Services [Member]
Revenue [Abstract]
Revenues	2,718	1,883	6,069	4,002
Petrochemical & Refined Products Services [Member] | Sales of Petrochemicals and Refined Products [Member]
Revenue [Abstract]
Revenues	2,389	1,591	5,354	3,405
Petrochemical & Refined Products Services [Member] | Midstream Services [Member]
Revenue [Abstract]
Revenues	329	292	715	597
Petrochemical & Refined Products Services [Member] | Midstream Services: Fractionation and Isomerization [Member]
Revenue [Abstract]
Revenues	85	51	211	114
Petrochemical & Refined Products Services [Member] | Midstream Services: Transportation [Member]
Revenue [Abstract]
Revenues	163	155	341	315
Petrochemical & Refined Products Services [Member] | Midstream Services: Storage and Terminals [Member]
Revenue [Abstract]
Revenues	$ 81	$ 86	$ 163	$ 168