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Employee Benefits (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Target allocation and pension plan asset allocation      
Contributions made to defined benefit pension plans $ 22 $ 13  
Estimated fair value of plan assets 198 171 $ 182
Reconciliation of benefit obligation:      
Benefit obligation at beginning of year 242 276  
Service cost 5 6 9
Interest cost 11 13 10
Actuarial losses (gains) (14) 1  
Plan settlements (13) (46)  
Benefits paid (9) (8)  
Benefit obligation at end of year 222 242 276
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year 171 182  
Actual return on plan assets 25 30  
Employer contributions 22 13  
Plan settlements (13) (46)  
Benefits paid (7) (8)  
Fair value of plan assets at end of year 198 171 182
Funded status (24) (71)  
Components of net periodic benefit cost:      
Service cost 5 6 9
Interest cost 11 13 10
Expected return on plan assets (12) (11) (14)
Amortization 1   6
Settlement loss recognized 3 1  
Net periodic benefit cost 8 9 11
Amounts not reflected in net periodic benefit cost and included in accumulated other comprehensive loss (AOCL) before taxes      
Total accumulated other comprehensive loss (29) 2  
Assets exceed accumulated benefits      
Target allocation and pension plan asset allocation      
Estimated fair value of plan assets 136 122 126
Reconciliation of benefit obligation:      
Benefit obligation at beginning of year 113 129  
Service cost 2 3  
Interest cost 6 7  
Actuarial losses (gains) (11) (1)  
Plan settlements   (21)  
Benefits paid (4) (4)  
Benefit obligation at end of year 106 113 129
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year 122 126  
Actual return on plan assets 18 21  
Plan settlements   (21)  
Benefits paid (4) (4)  
Fair value of plan assets at end of year 136 122 126
Funded status 30 9  
Components of net periodic benefit cost:      
Service cost 2 3  
Interest cost 6 7  
Accumulated benefits exceed assets      
Target allocation and pension plan asset allocation      
Contributions made to defined benefit pension plans 22 13  
Estimated fair value of plan assets 62 49 56
Reconciliation of benefit obligation:      
Benefit obligation at beginning of year 129 147  
Service cost 3 3  
Interest cost 5 6  
Actuarial losses (gains) (3) 2  
Plan settlements (13) (25)  
Benefits paid (5) (4)  
Benefit obligation at end of year 116 129 147
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year 49 56  
Actual return on plan assets 7 9  
Employer contributions 22 13  
Plan settlements (13) (25)  
Benefits paid (3) (4)  
Fair value of plan assets at end of year 62 49 $ 56
Funded status (54) (80)  
Components of net periodic benefit cost:      
Service cost 3 3  
Interest cost 5 6  
Defined benefit pension plan      
Target allocation and pension plan asset allocation      
Estimated fair value of plan assets $ 198 $ 171  
Weighted-average assumptions      
Discount rate used to determine obligations (as a percent) 5.72% 5.26% 5.38%
Discount rate used to determine net periodic benefit cost (as a percent) 5.26% 5.38% 2.78%
Expected return on plan assets (as a percent) 7.00% 6.50% 6.25%
Long-term rate of increase in compensation levels (as a percent) 3.78% 3.80% 4.00%
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year $ 171    
Fair value of plan assets at end of year 198 $ 171  
Expected future benefit payments      
2025 8    
2026 38    
2027 9    
2028 11    
2029 10    
Next five years after year five 68    
Accumulated benefit obligation 200 216  
Accumulated benefit obligation for defined benefit pension plans in excess of plan assets 46 118  
Defined benefit pension plan | Level 1      
Target allocation and pension plan asset allocation      
Estimated fair value of plan assets 198 171  
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year 171    
Fair value of plan assets at end of year $ 198 171  
Defined benefit pension plan | Equity Securities      
Target allocation and pension plan asset allocation      
Target Allocations (as a percent) 80.00%    
Defined benefit pension plan | Domestic equity securities      
Target allocation and pension plan asset allocation      
Estimated fair value of plan assets $ 109 81  
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year 81    
Fair value of plan assets at end of year 109 81  
Defined benefit pension plan | Domestic equity securities | Level 1      
Target allocation and pension plan asset allocation      
Estimated fair value of plan assets 109 81  
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year 81    
Fair value of plan assets at end of year 109 81  
Defined benefit pension plan | Foreign equity securities      
Target allocation and pension plan asset allocation      
Estimated fair value of plan assets 68 51  
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year 51    
Fair value of plan assets at end of year 68 51  
Defined benefit pension plan | Foreign equity securities | Level 1      
Target allocation and pension plan asset allocation      
Estimated fair value of plan assets 68 51  
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year 51    
Fair value of plan assets at end of year $ 68 51  
Defined benefit pension plan | Fixed income      
Target allocation and pension plan asset allocation      
Target Allocations (as a percent) 20.00%    
Estimated fair value of plan assets $ 13 26  
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year 26    
Fair value of plan assets at end of year 13 26  
Defined benefit pension plan | Fixed income | Level 1      
Target allocation and pension plan asset allocation      
Estimated fair value of plan assets 13 26  
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year 26    
Fair value of plan assets at end of year 13 26  
Defined benefit pension plan | International fixed income mutual funds      
Target allocation and pension plan asset allocation      
Estimated fair value of plan assets 6 11  
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year 11    
Fair value of plan assets at end of year 6 11  
Defined benefit pension plan | International fixed income mutual funds | Level 1      
Target allocation and pension plan asset allocation      
Estimated fair value of plan assets 6 11  
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year 11    
Fair value of plan assets at end of year 6 11  
Defined benefit pension plan | Money market funds      
Target allocation and pension plan asset allocation      
Estimated fair value of plan assets 2 2  
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year 2    
Fair value of plan assets at end of year 2 2  
Defined benefit pension plan | Money market funds | Level 1      
Target allocation and pension plan asset allocation      
Estimated fair value of plan assets 2 2  
Reconciliation of fair value of plan assets:      
Fair value of plan assets at beginning of year 2    
Fair value of plan assets at end of year $ 2 $ 2