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Employee Benefit Plans (Schedule of Projected Benefit Obligations in Excess of Fair Value of Plan Assets) (Details) - Pension Plans, Defined Benefit [Member] - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plan Change In Benefit Obligation [Line Items]    
Defined Benefit Plan, Benefit Obligation $ 81 $ 73
Defined Benefit Plan, Plan Assets, Amount $ 0 $ 0