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Stock and Stock-Based Incentive Plans Stock and Stock-Based Incentive Plans (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended |  |
--- | --- | --- | ---
May 31, 2021 | Feb. 28, 2021 | May 31, 2020
Share Repurchase Program |  |  |
Stock and Stock-Based Incentive Plans |  |  |
Stock Repurchase Program, Authorized Amount | $ 2,000.0 |  |
Available for repurchase, as of end of period | $ 1,211.5 |  | $ 1,511.6
Equity Option [Member] |  |  |
Stock and Stock-Based Incentive Plans |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 4 years |  |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period | 7 years |  |
Cash-settled restricted stock units (RSUs) |  |  |
Stock and Stock-Based Incentive Plans |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 years |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 1,239,000 | 1,606,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value | $ 93.01 | $ 70.88 |
Cash-settled restricted stock units (RSUs) | Minimum |  |  |
Stock and Stock-Based Incentive Plans |  |  |
Cash payment per cash settled restricted stock unit | 75.00% |  |
Cash-settled restricted stock units (RSUs) | Maximum |  |  |
Stock and Stock-Based Incentive Plans |  |  |
Cash payment per cash settled restricted stock unit | 200.00% |  |
Stock-settled market stock units (MSUs) |  |  |
Stock and Stock-Based Incentive Plans |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 years |  |
Share-based Compensation Arrangement by Share-based Payment Award, Conversion Ratio Quotient | 2 |  |
Market Stock Units Converted To Common Stock Conversion Ratio Number Of Final Trading Days In Vesting Period | 40 days |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 406,000 | 520,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value | $ 112.12 | $ 90.53 |
Stock-settled market stock units (MSUs) | Minimum |  |  |
Stock and Stock-Based Incentive Plans |  |  |
Stock units converted to common stock for each unit granted | 0 |  |
Stock-settled market stock units (MSUs) | Maximum |  |  |
Stock and Stock-Based Incentive Plans |  |  |
Stock units converted to common stock for each unit granted | 2 |  |
Performance Shares [Member] |  |  |
Stock and Stock-Based Incentive Plans |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 years |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 75,845 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value | $ 118.72 |  |
Performance Shares [Member] | Minimum |  |  |
Stock and Stock-Based Incentive Plans |  |  |
PSU conversion threshold | 25.00% |  |
Stock units converted to common stock for each unit granted | 0 |  |
Performance Shares [Member] | Maximum |  |  |
Stock and Stock-Based Incentive Plans |  |  |
PSU conversion threshold | 200.00% |  |
Stock units converted to common stock for each unit granted | 2 |  |
Deferred Stock Units [Member] |  |  |
Stock and Stock-Based Incentive Plans |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 1 year |  |
Stock units converted to common stock for each unit granted | 1 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 56,921 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value | $ 82.23 |  |
Restricted Stock [Member] |  |  |
Stock and Stock-Based Incentive Plans |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 5,591 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value | $ 89.41 |  |
Restricted Stock [Member] | Minimum |  |  |
Stock and Stock-Based Incentive Plans |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 1 year |  |
Restricted Stock [Member] | Maximum |  |  |
Stock and Stock-Based Incentive Plans |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period | 3 years |  |
Fiscal 2020 Grants - Year 1 [Member] | Performance Shares [Member] |  |  |
Stock and Stock-Based Incentive Plans |  |  |
PSU conversion threshold | 117.00% |  |
Fiscal 2020 Grants - Year 2 | Performance Shares [Member] |  |  |
Stock and Stock-Based Incentive Plans |  |  |
PSU conversion threshold | 100.00% |  |
PSU Grants - Performance Target Not Set [Member] | Performance Shares [Member] |  |  |
Stock and Stock-Based Incentive Plans |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | 25,397 |  |

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