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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2025
Share-Based Payment Arrangement [Abstract] |
Schedule of Flexible Stock Plan Options | At December 31, 2025, the following common shares were authorized for issuance under the Plan:
| Common Shares |  |
Unexercised options | .4 |  |  |
Outstanding stock units—vested | 4.5 |  |  |
Outstanding stock units—unvested | 2.5 |  |  |
Available for grant | 6.3 |  |  |
Authorized for issuance at December 31, 2025 | 13.7 |  |  |
Schedule of Components Of Stock-Based Compensation | The following table recaps the impact of stock-based compensation on the results of operations for each of the periods presented:
| Year Ended December 31,
| 2025 |  | 2024 |  | 2023
| To Be Settled With Stock |  | To Be Settled In Cash |  | To Be Settled With Stock |  | To Be Settled In Cash |  | To Be Settled With Stock |  | To Be Settled In Cash
Executive Stock Unit (ESU) program matching contributions 1 | $ | 2.7 |  |  | $ | .7 |  |  | $ | 3.7 |  |  | $ | .7 |  |  | $ | 3.0 |  |  | $ | .7 |
Discounts on various stock awards: |  |  |  |  |  |  |  |  |  |  |
Deferred Stock Compensation Program 2 | .6 |  |  | — |  |  | 1.2 |  |  | — |  |  | 1.5 |  |  | — |
ESU program 1 | .5 |  |  | — |  |  | 1.0 |  |  | — |  |  | 1.2 |  |  | — |
Discount Stock Plan 3 | .6 |  |  | — |  |  | .7 |  |  | — |  |  | .7 |  |  | — |
Performance Stock Unit (PSU) awards 4 | 1.1 |  |  | 1.5 |  |  | .1 |  |  | (.8) |  |  | 2.6 |  |  | .6 |
Restricted Stock Unit (RSU) awards 5 | 8.8 |  |  | — |  |  | 11.8 |  |  | — |  |  | 8.8 |  |  | — |
Other, primarily non-employee directors restricted stock | .7 |  |  | — |  |  | .8 |  |  | — |  |  | .8 |  |  | — |
Total stock-related compensation expense (income) | 15.0 |  |  | $ | 2.2 |  |  | 19.3 |  |  | $ | (.1) |  |  | 18.6 |  |  | $ | 1.3 |
Employee contributions for above stock plans | 4.6 |  |  |  |  | 7.2 |  |  |  |  | 9.0 |  |  |
Total stock-based compensation | $ | 19.6 |  |  |  |  | $ | 26.5 |  |  |  |  | $ | 27.6 |  |  |
Tax benefits on stock-based compensation expense | $ | 3.6 |  |  |  |  | $ | 4.7 |  |  |  |  | $ | 4.5 |  |  |
Tax (expense)/benefits on stock-based compensation payments | (2.8) |  |  |  |  | (1.1) |  |  |  |  | .4 |  |  |
Total tax benefits associated with stock-based compensation | $ | .8 |  |  |  |  | $ | 3.6 |  |  |  |  | $ | 4.9 |  |  |
Schedule of Stock-based Compensation Assets and Liabilities | The following table recaps the impact of stock-based compensation on assets and liabilities for each of the periods presented:
| 2025 |  | 2024
| Current |  | Long-term |  | Total |  | Current |  | Long-term |  | Total
Assets: |  |  |  |  |  |  |  |  |  |  |
Diversified investments associated with the ESU program 1 | $ | 4.3 |  |  | $ | 55.9 |  |  | $ | 60.2 |  |  | $ | 3.7 |  |  | $ | 51.4 |  |  | $ | 55.1 |
Liabilities: |  |  |  |  |  |  |  |  |  |  |
ESU program 1 | $ | 4.4 |  |  | $ | 58.0 |  |  | $ | 62.4 |  |  | $ | 3.7 |  |  | $ | 50.2 |  |  | $ | 53.9 |
PSU awards 4 | — |  |  | 2.6 |  |  | 2.6 |  |  | — |  |  | 1.0 |  |  | 1.0 |
Other - primarily timing differences between employee withholdings and related employer contributions to be submitted to various plans' trust accounts | 5.0 |  |  | — |  |  | 5.0 |  |  | 5.5 |  |  | — |  |  | 5.5 |
Total liabilities associated with stock-based compensation | $ | 9.4 |  |  | $ | 60.6 |  |  | $ | 70.0 |  |  | $ | 9.2 |  |  | $ | 51.2 |  |  | $ | 60.4 |
Schedule of Deferred Compensation Arrangement with Individual Disclosure, Postretirement Benefits |
| Options |  | Units |  | Cash
Aggregate amount of compensation deferred during 2025 | $ | .1 |  |  | $ | 2.2 |  |  | $ | .3 |
Schedule of Discount Stock Plan |
Average 2025 purchase price per share (net of discount) | $ | 7.90 |
2025 number of shares purchased by employees | .4 |
Shares purchased since inception in 1982 | 24.7 |
Maximum shares under the plan | 27.0 |
Schedule Of Share Based Compensation Arrangement By Share Based Payment Award Performance Based Units Table | Below is a summary of shares and grant date fair value related to PSU awards for the periods presented:
| Year Ended December 31,
| 2025 |  | 2024 |  | 2023
Total shares base award | .5 |  |  | .3 |  |  | .1 |
Grant date per share fair value | $ | 8.99 |  |  | $ | 15.30 |  |  | $ | 29.31 |
Risk-free interest rate | 4.0 | % |  | 4.5 | % |  | 4.4 | %
Vesting period in years | 3.0 |  | 3.0 |  | 3.0
Expected volatility | 38.9 | % |  | 30.9 | % |  | 45.7 | %
Expected dividend yield | 2.2 | % |  | 9.0 | % |  | 5.5 | %
Schedule of Share-based Compensation, Restricted Stock Units Award Activity | Stock unit information for the plans discussed above is presented in the table below:
| DSU |  | ESU |  | PSU |  | RSU |  |  |  | Total Units |  | Weighted Average Grant Date Fair Value per Unit |  | Aggregate Intrinsic Value
Unvested at December 31, 2024 | — |  |  | — |  |  | 1.1 |  |  | .3 |  |  |  |  | 1.4 |  |  | $ | 13.19 |  |  |
Granted based on current service | .3 |  |  | .4 |  |  | — |  |  | 1.3 |  |  |  |  | 2.0 |  |  | 8.66 |  |  |
Granted based on future conditions* | — |  |  | — |  |  | 1.1 |  |  | — |  |  |  |  | 1.1 |  |  | 4.50 |  |  |
Vested | (.3) |  |  | (.4) |  |  | — |  |  | (.9) |  |  |  |  | (1.6) |  |  | 9.89 |  |  |
Forfeited* | — |  |  | — |  |  | (.3) |  |  | (.1) |  |  |  |  | (.4) |  |  | 13.34 |  |  |
Unvested at December 31, 2025 | — |  |  | — |  |  | 1.9 |  |  | .6 |  |  |  |  | 2.5 |  |  | $ | 7.70 |  |  | $ | 27.2 |
Fully vested shares available for issuance at December 31, 2025 |  |  |  |  |  |  |  |  |  |  | 4.5 |  |  |  |  | $ | 50.1 |
*Stock-settled PSU awards (50%) are presented at maximum payout of 200% at grant date and when forfeited.
Schedule of Stock Units Converted to Common Stock |
| Year Ended December 31,
| 2025 |  | 2024 |  | 2023
Total intrinsic value of vested stock units converted to common stock | $ | — |  |  | $ | .1 |  |  | $ | 1.9 |

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