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Supplemental Disclosures About Natural Gas, Oil and NGL Producing Activities (unaudited) - Sources of Change in Standardized Measure of Discounted Future Net Cash Flow (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Extractive Industries [Abstract]      
Standardized measure, beginning balance $ 12,287 $ 3,086 $ 9,000
Sales of natural gas and oil produced, net of production costs and gathering processing and transportation (8,116) (3,414) (1,140)
Net changes in prices and production costs 14,256 6,674 (5,576)
Extensions and discoveries, net of production and development costs 251 2,834 71
Changes in estimated future development costs (1,512) (459) 1,933
Previously estimated development costs incurred during the period 690 130 665
Revisions of previous quantity estimates 6,697 2,034 (1,839)
Purchase of reserves-in-place 7,047 2,807 0
Sales of reserves-in-place (402) 0 (112)
Accretion of discount 1,371 309 902
Net change in income taxes (4,972) (1,423) 14
Changes in production rates and other (1,292) (291) (832)
Standardized measure, ending balance $ 26,305 $ 12,287 $ 3,086