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Employee Benefit Plans (Defined Benefit Plans Disclosure) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Pension Benefits        
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 4 $ 3 $ 11 $ 10
Interest cost 3 3 9 8
Expected return on plan assets (4) (3) (11) (9)
Amortization of prior service cost 0 0 0 0
Amortization of prior actuarial loss 1 1 1 2
Defined Benefit Plan, Benefit Obligation, Payment for Settlement (1) (1) (2) (1)
Total 5 5 12 12
Other Benefits        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 0 0 1 1
Interest cost 0 1 2 2
Expected return on plan assets 0 0 0 0
Amortization of prior service cost 0 0 (1) (1)
Amortization of prior actuarial loss 0 0 0 0
Defined Benefit Plan, Benefit Obligation, Payment for Settlement 0 0 0 0
Total $ 0 $ 1 $ 2 $ 2