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Employee Retirement Benefits - Schedule of Pension Plan Assets (Details) - Pension - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount $ 118 $ 119 $ 113
Level 1 | Cash      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount 7 2  
Level 2 | U.S. Large Cap      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount 17 13  
Level 2 | U.S. Mid Cap      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount 1 2  
Level 2 | International Developed      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount 6 12  
Level 2 | International Emerging Markets      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount 3 2  
Level 2 | U.S. Treasuries      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount 40 23  
Level 2 | Corporate Bonds      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount 17 38  
Level 2 | Government Bonds      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount 1 7  
Level 2 | Municipal Bonds      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount 0 2  
Level 2 | Mortgage-Backed Securities      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount 8 1  
Level 2 | Asset-Backed Securities      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount 1 2  
Level 2 | Bank Loans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount 0 6  
Level 2 | Preferreds      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount 0 6  
Level 2 | Other      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount 17 3  
Level 2 | Total fair value of pension plan assets      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined benefit plan, plan assets, amount $ 118 $ 119