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Stock-Based Compensation (Unrecognized Compensation Costs) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2023 USD ($)
Share Based Compensation Unrecognized and Non-Vested Cost [Line Items] |
Unrecognized Compensation Cost | $ 60
Weighted Average to be Recognized | 1 year 2 months 4 days
Stock awards |
Share Based Compensation Unrecognized and Non-Vested Cost [Line Items] |
Unrecognized Compensation Cost | $ 20
Weighted Average to be Recognized | 1 year 4 months 20 days
Performance shares |
Share Based Compensation Unrecognized and Non-Vested Cost [Line Items] |
Unrecognized Compensation Cost | $ 40
Weighted Average to be Recognized | 1 year 29 days

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