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Number of shares authorized for issuance under share-based payment arrangement.

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Stock And Stock-Based Incentive Plans (Narrative) (Details) - USD ($)	12 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2021
Preferred Stock
Stock and Stock-Based Incentive Plans
Preferred shares authorized (in shares)	20,000,000
Preferred Stock, par value (in dollars per share)	$ 20
Preferred stock shares outstanding (in shares)	0
Share Repurchase Program
Stock and Stock-Based Incentive Plans
Share repurchase, authorized amount	$ 4,000,000,000
Available for repurchase, as of end of year	$ 2,451,300,000	$ 774,500,000	$ 1,336,100,000
Stock Compensation Plan
Stock and Stock-Based Incentive Plans
Common stock, shares authorized (in shares)	60,850,000
Common shares reserved for future grants	5,769,765
Stock Option
Stock and Stock-Based Incentive Plans
Vesting period, in years	4 years
Years until expiration	7 years
Cash-Settled Restricted Stock Units
Stock and Stock-Based Incentive Plans
Vesting period, in years	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	1,004,000	1,163,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 97.19	$ 93.37
Cash-Settled Restricted Stock Units \| Minimum
Stock and Stock-Based Incentive Plans
Cash payment per RSU, percentage	75.00%
Cash-Settled Restricted Stock Units \| Maximum
Stock and Stock-Based Incentive Plans
Cash payment per RSU, percentage	200.00%
Stock-Settled Market Stock Units
Stock and Stock-Based Incentive Plans
Vesting period, in years	3 years
Conversion ratio, number of final trading days in vesting period	40 days
Share-based Compensation Arrangement by Share-based Payment Award, Conversion Ratio Quotient	2
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	404,000	393,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 120.61	$ 112.17
Stock-Settled Market Stock Units \| Minimum
Stock and Stock-Based Incentive Plans
Stock units converted to common stock	0
Stock-Settled Market Stock Units \| Maximum
Stock and Stock-Based Incentive Plans
Stock units converted to common stock	2
Performance Shares
Stock and Stock-Based Incentive Plans
Vesting period, in years	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	43,364
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 109.02
Performance Shares \| Fiscal 2020 grants - Year 1
Stock and Stock-Based Incentive Plans
PSU conversion threshold	117.00%
Performance Shares \| Fiscal 2022 Grants - Performance Target Not Set
Stock and Stock-Based Incentive Plans
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	48,658
Performance Shares \| Fiscal 2022 grants - Year 1
Stock and Stock-Based Incentive Plans
PSU conversion threshold	200.00%
Performance Shares \| Fiscal 2020 grants - Year 3
Stock and Stock-Based Incentive Plans
PSU conversion threshold	200.00%
Performance Shares \| Fiscal 2020 grants - Year 2
Stock and Stock-Based Incentive Plans
PSU conversion threshold	100.00%
Performance Shares \| Minimum
Stock and Stock-Based Incentive Plans
Stock units converted to common stock	0
PSU conversion threshold	25.00%
Performance Shares \| Maximum
Stock and Stock-Based Incentive Plans
Stock units converted to common stock	2
PSU conversion threshold	200.00%
Deferred Stock Units
Stock and Stock-Based Incentive Plans
Vesting period, in years	1 year
Stock units converted to common stock	1
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	78,893
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 91.65
Restricted Stock Awards
Stock and Stock-Based Incentive Plans
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	7,847
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 124.21
Restricted Stock Awards \| Minimum
Stock and Stock-Based Incentive Plans
Vesting period, in years	1 year
Restricted Stock Awards \| Maximum
Stock and Stock-Based Incentive Plans
Vesting period, in years	3 years
Employee Stock Purchase Plan
Stock and Stock-Based Incentive Plans
Common stock, shares authorized (in shares)	8,000,000
Associate contribution limit	10.00%
Associate contribution limit, value	$ 10,000
Company match	$ 0.15
Share-based Compensation Arrangement by Share-based Payment Award, Shares Purchased for Award	251,651	160,093	202,085
Stock Issued During Period, Value, Employee Stock Purchase Plan	$ 81.40	$ 125.22	$ 87.41
shares remained available under the purchase plan	2,014,192