Stock and Stock-Based Incentive Plans (Settled) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
May 31, 2021	May 31, 2020
Equity Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	917,455	1,570,889
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 42.33	$ 22.61
Proceeds from Stock Options Exercised	$ 21.6	$ 1.7
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	28.0	0.9
Share-based Payment Arrangement, Tax Benefit	$ 6.9	$ 0.2
Cash-settled restricted stock units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	361,115	669,053
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 136.94	$ 71.07
Share-based Compensation Arrangement by Share-based Payment Award, Payments Upon Vesting	$ 89.8	$ 34.8
Share-based Payment Arrangement, Tax Benefit	$ 24.6	$ 9.4
Stock-settled market stock units (MSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	80,910	194,766
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 178.31	$ 93.11
Share-based Payment Arrangement, Tax Benefit	$ 10.9	$ 3.0

Share-based Compensation Arrangement by Share-based Payment Award, Payments Upon Vesting

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Amount of tax benefit from exercise of option under share-based payment arrangement.

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Amount of cash inflow from exercise of option under share-based payment arrangement.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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.

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Net number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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