v3.25.0.1
Income Taxes (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Income Tax Contingency [Line Items]      
Tax credit related to investment   $ 87 $ 139
Tax credit related to renewable natural gas and commercial electric vehicles $ 18    
Tax settlement, reduction in tax provision   21  
Income taxes paid, net of refunds received 313 343 185
Net operating loss carryforwards 50    
Settlements 9 66 0
Unrecognized tax benefits if recognized that would impact effective tax rate 22 33 97
Interest on income taxes accrued (6) 1 1
Accrued liability for penalties 1    
Accrued liability for interest related to uncertain tax positions and penalties 5 $ 14 $ 15
State and Local Jurisdiction | SEC Schedule, 12-09, Valuation Allowance, Operating Loss Carryforward      
Income Tax Contingency [Line Items]      
Net operating loss carryforwards 45    
Equity Method Investment, Nonconsolidated Investee or Group of Investees      
Income Tax Contingency [Line Items]      
Tax credit related to investment $ 222