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Risk Management - Effect on Income Statement Not Designated (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Derivative [Line Items]        
Gain/(loss) on settlement of derivative contracts $ (16) $ 68 $ (43) $ 164
Energy commodity derivative contracts        
Derivative [Line Items]        
Gain/(loss) on derivative Instruments (14) 7 10 35
Revenues—Commodity sales | Energy commodity derivative contracts        
Derivative [Line Items]        
Gain/(loss) on settlement of derivative contracts 2 10 (9) 31
Costs of sales | Energy commodity derivative contracts        
Derivative [Line Items]        
Gain/(loss) on settlement of derivative contracts (18) 51 (32) 120
Earnings from equity investments | Energy commodity derivative contracts        
Derivative [Line Items]        
Gain/(loss) on settlement of derivative contracts 0 0 0 1
Interest, net | Interest rate contracts        
Derivative [Line Items]        
Gain/(loss) on settlement of derivative contracts $ 0 $ 7 $ (2) $ 12