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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
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Defined Benefit Plan Change In Benefit Obligation [Line Items] |  |
Defined Benefit Plan, Benefit Obligation | $ 81 | $ 73
Defined Benefit Plan, Plan Assets, Amount | $ 0 | $ 0

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