v3.26.1
Summary of Significant Accounting Policies (Schedule of Revenue from Contracts with Customers) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation Of Revenue [Line Items]        
Total revenues from contracts with customers $ 7,003 $ 4,048 $ 11,511 $ 8,598
Oil, Gas and NGL Sales [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenues from contracts with customers 5,106 2,710 8,083 5,836
Oil, Gas and NGL Sales [Member] | Crude Oil, Condensate, and Natural Gas Liquids (NGL) [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenues from contracts with customers 4,354 2,174 6,777 4,588
Oil, Gas and NGL Sales [Member] | Gas [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenues from contracts with customers 104 178 309 487
Oil, Gas and NGL Sales [Member] | NGL [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenues from contracts with customers 648 358 997 761
Marketing and Midstream Revenues [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenues from contracts with customers 1,897 1,338 3,428 2,762
Marketing and Midstream Revenues [Member] | Crude Oil, Condensate, and Natural Gas Liquids (NGL) [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenues from contracts with customers 1,411 859 2,412 1,777
Marketing and Midstream Revenues [Member] | Gas [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenues from contracts with customers 156 246 410 517
Marketing and Midstream Revenues [Member] | NGL [Member]        
Disaggregation Of Revenue [Line Items]        
Total revenues from contracts with customers $ 330 $ 233 $ 606 $ 468