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v3.25.4

Stock-Based Compensation (Schedule of Stock-based Assets and Liabilities) (Details) - USD ($) $ in Millions | Dec. 31, 2025 | Dec. 31, 2024
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Assets: |  |
Diversified investments associated with the ESU program, current | $ 4.3 | $ 3.7
Diversified investments associated with the ESU program, long-term | 55.9 | 51.4
Diversified investments associated with the ESU program, total | 60.2 | 55.1
Liabilities: |  |
Share liabilities, current | 4.4 | 3.7
Share liabilities, long-term | 8.2 | 9.0
Other - primarily timing differences between employee withholdings and related employer contributions to be submitted to various plans' trust accounts, current | 5.0 | 5.5
Other - primarily timing differences between employee withholdings and related employer contributions to be submitted to various plans' trust accounts, long-term | 0.0 | 0.0
Other - primarily timing differences between employee withholdings and related employer contributions to be submitted to various plans' trust accounts, total | 5.0 | 5.5
Total liabilities associated with stock-based compensation, current | 9.4 | 9.2
Total liabilities associated with stock-based compensation, long-term | 60.6 | 51.2
Total liabilities associated with stock-based compensation, total | 70.0 | 60.4
ESU program |  |
Liabilities: |  |
Share liabilities, current | 4.4 | 3.7
Share liabilities, long-term | 58.0 | 50.2
Share liabilities, total | 62.4 | 53.9
PSU awards |  |
Liabilities: |  |
Share liabilities, current | 0.0 | 0.0
Share liabilities, long-term | 2.6 | 1.0
Share liabilities, total | $ 2.6 | $ 1.0

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