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Income Taxes - Narrative (Details) - USD ($)
$ in Millions
 1 Months Ended 3 Months Ended 11 Months Ended 12 Months Ended
Feb. 09, 2021
Feb. 09, 2021
Dec. 31, 2022
Mar. 31, 2020
Dec. 31, 2021
Dec. 31, 2022
Dec. 31, 2020
Nov. 01, 2021
Dec. 31, 2019
Income Taxes Summary [Line Items]                  
Deferred tax assets, valuation allowance, increase (decrease)     $ 1,351     $ 2,038      
Deferred tax assets     1,954   $ 2,386 1,954      
Deferred tax assets, valuation allowance     345   2,383 345      
Deferred tax assets, valuation allowance, increase (decrease), pre tax           687      
Impairments of oil and natural gas properties   $ 0   $ 8,446 0 0 $ 8,446    
Change in valuation allowance     1,351            
Deferred tax assets, operating loss carryforward, limitations     54     54      
Income tax cancellation of debt income $ 5,000                
Net operating loss carryforwards removed     307     307      
Income tax benefit (57) (57)     (49) (1,285) (19)    
Unrecognized tax benefits $ 74 $ 74 69   74 69 $ 74   $ 74
Uncertain tax positions that would impact effective tax rate     33     33      
Income taxes receivable     168     168      
Tax credit carryforwards     4     4      
State and local                  
Income Taxes Summary [Line Items]                  
Operating loss carryforwards     3,901     3,901      
Income taxes receivable     29   29 29      
State and local | PENNSYLVANIA                  
Income Taxes Summary [Line Items]                  
Income taxes receivable     24     24      
Vine Energy Corporation (Vine)                  
Income Taxes Summary [Line Items]                  
Deferred tax liabilities     $ 30   $ 49 30   $ 30  
Income tax benefit           $ 19      
Operating loss carryforwards, 382 limitation               2  
Operating loss carryforwards, 382 limitation, expected increase per year               12  
Operating loss carryforwards, 382 limitation, expected increase per year, available utilization               $ 14