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Pension and Other Postretirement Benefits (Details 5) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Retirement Benefits [Abstract]      
Employer contribution $ 41 $ 37 $ 34
Pension and Other Postretirement Benefits      
Accrued expenses 9    
Nonqualified supplemental pension plan      
Pension and Other Postretirement Benefits      
Accrued expenses 1 1  
Other noncurrent liability 9 9  
Expenses recognized $ 1 $ 1 $ 1