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Stock-Based Compensation Plans Stock-Based Compensation Plans (Schedule Of Future Share-Based Compensation Cost) (Details) $ in Millions | Mar. 31, 2024 USD ($)
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Share -based Compensation Arrangement by Share-based Payment Award [Line Items] |
Remainder of 2024 | $ 31.1
2025 | 11.4
2026 | 5.4
2027 | 0.2
2028 | 0.0
Total | $ 48.1

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- Definition Line items represent financial concepts included in a table. 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