Stock-Based Employee Compensation - Fair Value of Stock Options (Details) - Long-Term Stock Incentive Plan - USD ($) $ in Millions |
12 Months Ended | ||
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Feb. 28, 2023 |
Feb. 28, 2022 |
Feb. 28, 2021 |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Fair value of stock options vested | $ 26.9 | $ 23.9 | $ 21.1 |
| Intrinsic value of stock options exercised | 32.6 | 269.1 | 142.1 |
| Tax benefit realized from stock options exercised | $ 7.4 | $ 62.9 | $ 33.9 |
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- Definition Amount of tax benefit from exercise of option under share-based payment arrangement. 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. No definition available.
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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