Acquisitions and Divestiture Activities - Narrative (Divestitures) (Details) shares in Thousands, a in Thousands	1 Months Ended				6 Months Ended	9 Months Ended
	Feb. 28, 2022 USD ($)	Dec. 31, 2021 USD ($)	Oct. 31, 2021 USD ($) shares	Mar. 31, 2021 USD ($)	Jun. 30, 2022 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Oct. 01, 2021 USD ($) a
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of assets						$ 293,000,000	$ 59,000,000
Midland Basin | Sold
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of assets					$ 165,000,000
Interest received in sale					8,000,000
Gain (loss) on sale					$ 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 sale of equity method investments	$ 125,000,000
Equity method investment, realized gain (loss) on disposal	$ 0
Delaware Basin Divestiture | Sold
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of assets		$ 3,000,000,000
Laredo Petroleum, Inc. | Sold
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of assets			$ 137,000,000
Area of land | a								20
Shares received (in shares) | shares			960
Total consideration								$ 206,000,000
Wells Services | Sold
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from disposition of assets				$ 20,000,000
Gain (loss) on sale				9,000,000
Additional contingent proceeds				$ 4,000,000