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Derivatives and Risk Management Activities - Fair Value (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2024	Dec. 31, 2023
Recurring Fair Value Measurements
Gain on embedded derivative, net	$ 58
Recurring Fair Value Measures
Recurring Fair Value Measurements
Total net derivative asset/(liability)		$ (153)	$ 55
Level 1 | Recurring Fair Value Measures
Recurring Fair Value Measurements
Total net derivative asset/(liability)		(7)	9
Level 2 | Recurring Fair Value Measures
Recurring Fair Value Measurements
Total net derivative asset/(liability)		(146)	46
Level 3
Rollforward of Level 3 Net Asset/(Liability)
Beginning Balance	(189)
Net gains/(losses) for the period included in earnings	58
Settlements	131
Ending Balance	0
Change in unrealized gains/(losses) included in earnings relating to Level 3 derivatives still held at the end of the period	0
Commodity derivatives | Recurring Fair Value Measures
Recurring Fair Value Measurements
Total net derivative asset/(liability)		(169)
Commodity derivatives | Level 1 | Recurring Fair Value Measures
Recurring Fair Value Measurements
Total net derivative asset/(liability)		(7)	9
Commodity derivatives | Level 2 | Recurring Fair Value Measures
Recurring Fair Value Measurements
Total net derivative asset/(liability)		(162)	(9)
Interest rate derivatives | Recurring Fair Value Measures
Recurring Fair Value Measurements
Total net derivative asset/(liability)		16	55
Interest rate derivatives | Level 2 | Recurring Fair Value Measures
Recurring Fair Value Measurements
Total net derivative asset/(liability)		$ 16	$ 55
Preferred Distribution Rate Reset Option | Derivatives Not Designated as a Hedge | Other Income/(Expense), Net
Recurring Fair Value Measurements
Gain on embedded derivative, net	$ 58

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

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Amount of unrealized gain (loss) recognized in income for derivative asset (liability) after deduction of derivative liability (asset), measured at fair value using unobservable input (level 3) and still held.

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Amount of settlements of financial instrument classified as a derivative asset (liability) after deduction of derivative liability, measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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