Revenues, Revenues by Business Segment and Revenue Type (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue [Abstract]
Revenues	$ 15,468	$ 10,832	$ 44,536	$ 29,437
NGL Pipelines & Services [Member]
Revenue [Abstract]
Revenues	6,237	3,816	18,371	10,987
NGL Pipelines & Services [Member] | Sales of NGLs and Related Products [Member]
Revenue [Abstract]
Revenues	5,519	3,169	16,139	9,151
NGL Pipelines & Services [Member] | Midstream Services [Member]
Revenue [Abstract]
Revenues	718	647	2,232	1,836
NGL Pipelines & Services [Member] | Midstream Services: Natural Gas Processing and Fractionation [Member]
Revenue [Abstract]
Revenues	340	253	1,143	688
NGL Pipelines & Services [Member] | Midstream Services: Transportation [Member]
Revenue [Abstract]
Revenues	250	235	708	745
NGL Pipelines & Services [Member] | Midstream Services: Storage and Terminals [Member]
Revenue [Abstract]
Revenues	128	159	381	403
Crude Oil Pipelines & Services [Member]
Revenue [Abstract]
Revenues	4,724	3,235	14,181	7,904
Crude Oil Pipelines & Services [Member] | Sales of Crude Oil [Member]
Revenue [Abstract]
Revenues	4,455	2,890	13,202	6,868
Crude Oil Pipelines & Services [Member] | Midstream Services [Member]
Revenue [Abstract]
Revenues	269	345	979	1,036
Crude Oil Pipelines & Services [Member] | Midstream Services: Transportation [Member]
Revenue [Abstract]
Revenues	162	233	650	692
Crude Oil Pipelines & Services [Member] | Midstream Services: Storage and Terminals [Member]
Revenue [Abstract]
Revenues	107	112	329	344
Natural Gas Pipelines & Services [Member]
Revenue [Abstract]
Revenues	1,886	980	4,696	3,276
Natural Gas Pipelines & Services [Member] | Sales of Natural Gas [Member]
Revenue [Abstract]
Revenues	1,556	732	3,795	2,543
Natural Gas Pipelines & Services [Member] | Midstream Services [Member]
Revenue [Abstract]
Revenues	330	248	901	733
Natural Gas Pipelines & Services [Member] | Midstream Services: Transportation [Member]
Revenue [Abstract]
Revenues	330	248	901	733
Petrochemical & Refined Products Services [Member]
Revenue [Abstract]
Revenues	2,621	2,801	7,288	7,270
Petrochemical & Refined Products Services [Member] | Sales of Petrochemicals and Refined Products [Member]
Revenue [Abstract]
Revenues	2,346	2,539	6,470	6,524
Petrochemical & Refined Products Services [Member] | Midstream Services [Member]
Revenue [Abstract]
Revenues	275	262	818	746
Petrochemical & Refined Products Services [Member] | Midstream Services: Fractionation and Isomerization [Member]
Revenue [Abstract]
Revenues	56	81	172	214
Petrochemical & Refined Products Services [Member] | Midstream Services: Transportation [Member]
Revenue [Abstract]
Revenues	149	116	426	357
Petrochemical & Refined Products Services [Member] | Midstream Services: Storage and Terminals [Member]
Revenue [Abstract]
Revenues	$ 70	$ 65	$ 220	$ 175