v3.26.1
Fair Value of Financial Information - Schedule of Carrying Amounts and Fair Values of Financial Instruments (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Carrying Amount    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Preferred stock with mandatory redemption requirements $ 3 $ 3
Long-term debt 14,489 14,256
Fair Value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Preferred stock with mandatory redemption requirements 3 3
Long-term debt 13,350 13,334
Fair Value | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Preferred stock with mandatory redemption requirements 0 0
Long-term debt 12,697 11,653
Fair Value | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Preferred stock with mandatory redemption requirements 0 0
Long-term debt 30 1,065
Fair Value | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Preferred stock with mandatory redemption requirements 3 3
Long-term debt $ 623 $ 616