v3.26.1
Supplemental Cash Flow Information - Schedule of Supplemental Consolidated Statements of Cash Flows (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Cash paid (received) during the period    
Interest and other finance charges, net of capitalized interest $ 52 $ 23
Income taxes, net (4) 19
Unrealized (gain) loss on derivative instruments included on the Statements of Cash Flows    
Commodity contracts 154 182
Interest rate swap contracts (interest expense) (2) 14
Unrealized (gain) loss on derivative instruments 152 196
Depreciation, amortization and accretion included on the Statements of Cash Flows    
Depreciation, amortization and accretion 92 74
Amortization of acquired fuel supply contract liabilities (29) 0
Other 3 (2)
Depreciation, amortization and accretion 66 72
Reconciliation of other non-cash operating activities    
Derivative option premium amortization 5 31
Other (1) (5)
Total 4 26
Non-cash investing activities    
Accrued PP&E additions not paid at period end $ 15 $ 12