Equity-Based Awards, Phantom Unit Awards (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Summary of awards activity, equity instruments other than options, additional disclosures [Abstract]
Cash payments made in connection with DERs				$ 17	$ 15
Phantom Unit Awards [Member]
Summary of awards activity, equity instruments other than options [Roll Forward]
Beginning of period (in units)				17,170,919
Granted (in units)	[1]			7,968,380
Vested (in units)				(6,169,973)
Forfeited (in units)				(338,034)
End of period (in units)		18,631,292		18,631,292
Phantom units outstanding, weighted-average grant date fair value [Roll Forward]
Weighted-average grant date fair value per unit, at beginning of period (in dollars per unit)	[2]			$ 24.31
Granted weighted-average grant date fair value per unit (in dollars per unit)	[1],[2]			24.11
Vested weighted-average grant date fair value per unit (in dollars per unit)	[2]			25.14
Forfeited weighted-average grant date fair value per unit (in dollars per unit)	[2]			23.94
Weighted-average grant date fair value per unit, at end of period (in dollars per unit)	[2]	$ 23.95		$ 23.95
Summary of awards activity, equity instruments other than options, additional disclosures [Abstract]
Aggregate grant date fair value				$ 192
Estimated forfeiture rate				2.00%
Cash payments made in connection with DERs		$ 9	$ 8	$ 17	15
Total intrinsic value of phantom unit awards that vested during period		7	$ 6	149	$ 119
Unrecognized Compensation Expense [Abstract]
Unrecognized compensation cost		238		$ 238
Recognition period for total unrecognized compensation cost				2 years 1 month 6 days
Phantom Unit Awards [Member] | Minimum [Member]
Summary of awards activity, equity instruments other than options, additional disclosures [Abstract]
Grant date market price of common units (in dollars per unit)				$ 24.10
Phantom Unit Awards [Member] | Maximum [Member]
Summary of awards activity, equity instruments other than options, additional disclosures [Abstract]
Grant date market price of common units (in dollars per unit)				$ 25.61
Phantom Unit Awards [Member] | Enterprise [Member]
Unrecognized Compensation Expense [Abstract]
Unrecognized compensation cost		$ 197		$ 197

[1] The aggregate grant date fair value of phantom unit awards issued during 2022 was $192 million based on a grant date market price of the Partnership’s common units ranging from $24.10 to $25.61 per unit.  An estimated annual forfeiture rate of 2.0% was applied to these awards.

[2] Determined by dividing the aggregate grant date fair value of awards (before an allowance for forfeitures) by the number of awards issued.