Revenues, Revenues by Business Segment and Revenue Type (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue [Abstract]
Revenues	$ 16,060	$ 9,450	$ 29,068	$ 18,605
NGL Pipelines & Services [Member]
Revenue [Abstract]
Revenues	6,380	3,587	12,134	7,171
NGL Pipelines & Services [Member] | Sales of NGLs and Related Products [Member]
Revenue [Abstract]
Revenues	5,580	2,976	10,620	5,982
NGL Pipelines & Services [Member] | Midstream Services [Member]
Revenue [Abstract]
Revenues	800	611	1,514	1,189
NGL Pipelines & Services [Member] | Midstream Services: Natural Gas Processing and Fractionation [Member]
Revenue [Abstract]
Revenues	463	252	803	435
NGL Pipelines & Services [Member] | Midstream Services: Transportation [Member]
Revenue [Abstract]
Revenues	229	235	458	510
NGL Pipelines & Services [Member] | Midstream Services: Storage and Terminals [Member]
Revenue [Abstract]
Revenues	108	124	253	244
Crude Oil Pipelines & Services [Member]
Revenue [Abstract]
Revenues	5,385	2,504	9,457	4,669
Crude Oil Pipelines & Services [Member] | Sales of Crude Oil [Member]
Revenue [Abstract]
Revenues	5,031	2,139	8,747	3,978
Crude Oil Pipelines & Services [Member] | Midstream Services [Member]
Revenue [Abstract]
Revenues	354	365	710	691
Crude Oil Pipelines & Services [Member] | Midstream Services: Transportation [Member]
Revenue [Abstract]
Revenues	249	250	488	459
Crude Oil Pipelines & Services [Member] | Midstream Services: Storage and Terminals [Member]
Revenue [Abstract]
Revenues	105	115	222	232
Natural Gas Pipelines & Services [Member]
Revenue [Abstract]
Revenues	1,661	709	2,810	2,296
Natural Gas Pipelines & Services [Member] | Sales of Natural Gas [Member]
Revenue [Abstract]
Revenues	1,359	476	2,239	1,811
Natural Gas Pipelines & Services [Member] | Midstream Services [Member]
Revenue [Abstract]
Revenues	302	233	571	485
Natural Gas Pipelines & Services [Member] | Midstream Services: Transportation [Member]
Revenue [Abstract]
Revenues	302	233	571	485
Petrochemical & Refined Products Services [Member]
Revenue [Abstract]
Revenues	2,634	2,650	4,667	4,469
Petrochemical & Refined Products Services [Member] | Sales of Petrochemicals and Refined Products [Member]
Revenue [Abstract]
Revenues	2,370	2,386	4,124	3,985
Petrochemical & Refined Products Services [Member] | Midstream Services [Member]
Revenue [Abstract]
Revenues	264	264	543	484
Petrochemical & Refined Products Services [Member] | Midstream Services: Fractionation and Isomerization [Member]
Revenue [Abstract]
Revenues	47	80	116	133
Petrochemical & Refined Products Services [Member] | Midstream Services: Transportation [Member]
Revenue [Abstract]
Revenues	139	124	277	241
Petrochemical & Refined Products Services [Member] | Midstream Services: Storage and Terminals [Member]
Revenue [Abstract]
Revenues	$ 78	$ 60	$ 150	$ 110