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Compensation Plans (Schedule of Weighted Average Assumptions Used to Fair Value Share Units) (Details) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2025 $ / shares | Dec. 31, 2024 $ / shares | Dec. 31, 2023 $ / shares | Dec. 31, 2025 $ / shares | Dec. 31, 2024 $ / shares | Dec. 31, 2023 $ / shares
Canadian Dollar [Member] | Tandem Stock Appreciation Rights (TSARs) [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Fair Value Assumptions, Risk Free Interest Rate | 2.55% | 2.92% | 3.95% |  |  |
Fair Value Assumptions, Dividend Yield | 3.12% | 2.82% | 2.78% |  |  |
Fair Value Assumptions, Expected Volatility Rate | 38.35% | 42.83% | 48.87% |  |  |
Fair Value Assumptions, Expected Term | 1 month 6 days | 7 months 6 days | 10 months 24 days |  |  |
Market Share Price |  |  |  | $ 53.79 | $ 58.23 | $ 58.16
Weighted Average Grant Date Fair Value |  |  |  | $ 47.7 | $ 54.84 | $ 62.45
United States Of America Dollars [Member] | Stock Appreciation Rights (SARs) |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Fair Value Assumptions, Risk Free Interest Rate | 2.55% | 2.92% | 3.95% |  |  |
Fair Value Assumptions, Dividend Yield | 3.06% | 2.96% | 2.73% |  |  |
Fair Value Assumptions, Expected Volatility Rate | 39.57% | 46.02% | 52.32% |  |  |
Fair Value Assumptions, Expected Term | 2 months 12 days | 8 months 12 days | 1 year 1 month 6 days |  |  |
Market Share Price | $ 39.19 | $ 40.5 | $ 43.92 |  |  |
Weighted Average Grant Date Fair Value | $ 34.36 | $ 40.91 | $ 44.77 |  |  |

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- Definition Share based compensation arrangement by share based payment award fair value assumptions weighted average grant date fair value. + References No definition available. + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iv) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Line items represent financial concepts included in a table. 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