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Employee Benefit Plans - Pension Plan Assets at Fair Value (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Insurance contracts      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value $ 2 $ 8 $ 7
Recurring      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 48 60  
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0 0  
Recurring | Significant Other Observable Inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 46 52  
Recurring | Significant Unobservable Inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 2 8  
Recurring | Money market funds      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value   1  
Recurring | Money market funds | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value   0  
Recurring | Money market funds | Significant Other Observable Inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value   1  
Recurring | Money market funds | Significant Unobservable Inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value   0  
Recurring | Equity funds      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 17 20  
Recurring | Equity funds | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0 0  
Recurring | Equity funds | Significant Other Observable Inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 17 20  
Recurring | Equity funds | Significant Unobservable Inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0 0  
Recurring | Bond/fixed-income funds      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 26 28  
Recurring | Bond/fixed-income funds | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0 0  
Recurring | Bond/fixed-income funds | Significant Other Observable Inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 26 28  
Recurring | Bond/fixed-income funds | Significant Unobservable Inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0 0  
Recurring | Real estate indirect investments      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 3 3  
Recurring | Real estate indirect investments | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0 0  
Recurring | Real estate indirect investments | Significant Other Observable Inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 3 3  
Recurring | Real estate indirect investments | Significant Unobservable Inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0 0  
Recurring | Insurance contracts      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 2 8  
Recurring | Insurance contracts | Quoted Prices in Active Markets for Identical Assets (Level 1)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0 0  
Recurring | Insurance contracts | Significant Other Observable Inputs (Level 2)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value 0 0  
Recurring | Insurance contracts | Significant Unobservable Inputs (Level 3)      
Defined Benefit Plan Disclosure [Line Items]      
Total assets at fair value $ 2 $ 8