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Employee Benefit Plans (Schedule of Net Funded Status) (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Change In Benefit Obligation [Line Items]    
Defined Benefit Plan, Plan Assets, Amount $ 180 $ 158
Defined Benefit Plan, Benefit Obligation 236 214
Defined Benefit Plan, Funded Status of Plan, Total (56) (56)
Qualified Plan [Member]    
Defined Benefit Plan Change In Benefit Obligation [Line Items]    
Defined Benefit Plan, Plan Assets, Amount 180 158
Defined Benefit Plan, Benefit Obligation 156 142
Defined Benefit Plan, Funded Status of Plan, Total 24 16
Nonqualified Plan [Member]    
Defined Benefit Plan Change In Benefit Obligation [Line Items]    
Defined Benefit Plan, Plan Assets, Amount [1] 0 0
Defined Benefit Plan, Benefit Obligation [1] 80 72
Defined Benefit Plan, Funded Status of Plan, Total [1] $ (80) $ (72)
[1] For non-qualified plans, there are no required funding levels.