Intangible Assets and Goodwill, Goodwill (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2023
Changes in carrying amount of goodwill [Roll Forward]
Balance at beginning of period		$ 5,449
Goodwill related to acquisition	[1]	159
Balance at end of period		5,608
NGL Pipelines & Services [Member]
Changes in carrying amount of goodwill [Roll Forward]
Balance at beginning of period		2,652
Goodwill related to acquisition	[1]	159
Balance at end of period		2,811
Crude Oil Pipelines & Services [Member]
Changes in carrying amount of goodwill [Roll Forward]
Balance at beginning of period		1,841
Goodwill related to acquisition	[1]	0
Balance at end of period		1,841
Natural Gas Pipelines & Services [Member]
Changes in carrying amount of goodwill [Roll Forward]
Balance at beginning of period	[2]	0
Goodwill related to acquisition	[1]	0
Balance at end of period	[2]	0
Accumulated impairment charges			$ 296
Petrochemical & Refined Products Services [Member]
Changes in carrying amount of goodwill [Roll Forward]
Balance at beginning of period	[2]	956
Goodwill related to acquisition	[1]	0
Balance at end of period	[2]	$ 956
Accumulated impairment charges			$ 1

[1] This amount represents the goodwill recognized in connection with our acquisition of Navitas Midstream in February 2022.  In general, we attribute this goodwill to our ability to leverage the acquired business with our existing NGL asset base to create future business opportunities.

[2] Balances are presented net of historical accumulated impairment losses of $296 million for the Natural Gas Pipelines & Service segment and $1 million for the Petrochemical & Refined Products Services segment.  There have been no goodwill impairment charges recognized for the reporting units within the NGL Pipelines & Services and Crude Oil Pipelines & Services segments.