Business Segments and Related Information, Consolidated Revenues and Expenses (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Consolidated Revenues [Abstract]
Total consolidated revenues		$ 16,060	$ 9,450	$ 29,068	$ 18,605
Operating costs and expenses:
Cost of sales	[1]	12,908	6,840	23,006	13,103
Other operating costs and expenses	[2]	884	702	1,641	1,417
Depreciation, amortization and accretion		544	507	1,070	1,005
Asset impairment charges		5	18	19	84
Net losses attributable to asset sales and related matters		0	0	2	11
General and administrative costs		62	52	124	108
Total consolidated costs and expenses		14,403	8,119	25,862	15,728
NGL Pipelines & Services [Member]
Consolidated Revenues [Abstract]
Total consolidated revenues		6,380	3,587	12,134	7,171
Crude Oil Pipelines & Services [Member]
Consolidated Revenues [Abstract]
Total consolidated revenues		5,385	2,504	9,457	4,669
Natural Gas Pipelines & Services [Member]
Consolidated Revenues [Abstract]
Total consolidated revenues		1,661	709	2,810	2,296
Petrochemical & Refined Products Services [Member]
Consolidated Revenues [Abstract]
Total consolidated revenues		$ 2,634	$ 2,650	$ 4,667	$ 4,469

[1] Cost of sales is a component of “Operating costs and expenses” as presented on our Unaudited Condensed Statements of Consolidated Operations.  Fluctuations in these amounts are primarily due to changes in energy commodity prices and sales volumes associated with our marketing activities.

[2] Represents the cost of operating our plants, pipelines and other fixed assets excluding: depreciation, amortization and accretion charges; asset impairment charges; and net losses attributable to asset sales and related matters.