v3.26.1
Fair Value Measures and Disclosures (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Long-term Debt $ (144) $ (145)
Long-term Debt, Fair Value (158) (157)
Long-term Debt [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Financial Instruments Gross Unrealized Gains 0 0
Financial Instruments Gross Unrealized Loss (14) (12)
Money Market Funds [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Cash Equivalents, at Carrying Value 12 11
Financial Instruments Gross Unrealized Gains 0 0
Financial Instruments Gross Unrealized Loss 0 0
Cash Equivalents, Fair Value $ 12 $ 11