Business Segments and Related Information, Consolidated Revenues and Expenses (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Consolidated Revenues [Abstract]
Total consolidated revenues		$ 13,483	$ 10,651	$ 28,243	$ 23,095
Operating costs and expenses:
Cost of sales	[1]	10,184	7,679	21,589	17,010
Other operating costs and expenses	[2]	974	895	1,928	1,763
Depreciation, amortization and accretion		595	562	1,190	1,109
Asset impairment charges		4	3	24	16
Net losses (gains) attributable to asset sales and related matters		5	(2)	5	(4)
General and administrative costs		57	56	123	113
Total consolidated costs and expenses		11,819	9,193	24,859	20,007
NGL Pipelines & Services [Member]
Consolidated Revenues [Abstract]
Total consolidated revenues		4,265	3,689	9,405	8,618
Crude Oil Pipelines & Services [Member]
Consolidated Revenues [Abstract]
Total consolidated revenues		5,888	4,304	11,303	8,485
Natural Gas Pipelines & Services [Member]
Consolidated Revenues [Abstract]
Total consolidated revenues		612	775	1,466	1,990
Petrochemical & Refined Products Services [Member]
Consolidated Revenues [Abstract]
Total consolidated revenues		$ 2,718	$ 1,883	$ 6,069	$ 4,002

[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; asset impairment charges; and net losses (gains) attributable to asset sales and related matters.