Divestitures and Nonmonetary Transactions - Narrative (Divestitures) (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Feb. 28, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of assets				$ 24,000,000	$ 293,000,000
Sold
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of assets		$ 0		$ 0
Midland Basin | Sold
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of assets			$ 39,000,000		165,000,000
Gain (loss) on sale			$ 34,000,000		$ 110,000,000
Martin County Gas Processing | Sold
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of assets	$ 125,000,000
Equity method investment, realized gain (loss) on disposal	$ 0