Stock and Stock-Based Incentive Plans (Schedule of Common Stock Repurchases) (Details) - Share Repurchase Program - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Aug. 31, 2023	Aug. 31, 2022	Aug. 31, 2023	Aug. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares repurchased	0	1,729,600	0	3,373,900
Average Cost Per Share	$ 0	$ 94.24	$ 0	$ 95.01
Available for repurchase, as of end of period	$ 2,451.3	$ 2,453.9	$ 2,451.3	$ 2,453.9