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Fair Value of Financial Information - Schedule of Carrying Amounts and Fair Values of Financial Instruments (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
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 14,256 13,155
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 13,334 11,873
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 11,653 10,165
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 1,065 1,050
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 $ 616 $ 658