Stock-Based Compensation Plans (Weighted-Average Assumptions) (Details) - Stock Options [Member] |
12 Months Ended | ||
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May 31, 2026 |
May 31, 2025 |
May 31, 2024 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Risk-free interest rate | 4.40% | 4.20% | 4.10% |
| Dividend yield | 3.00% | 3.20% | 3.10% |
| Volatility factor | 0.26 | 0.25 | 0.25 |
| Expected option life in years | 6 years 7 months 6 days | 6 years 6 months | 6 years 7 months 6 days |
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- Definition Share based compensation arrangements by share based payment award, fair value assumptions, expected volatility factor. No definition available.
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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