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, 2025	Aug. 31, 2024	Aug. 31, 2025	Aug. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares repurchased	2,921,000	1,376,700	5,873,400	2,822,400
Average Cost Per Share	$ 61.63	$ 77.04	$ 64.66	$ 74.41
Available for repurchase, as of end of period	$ 1,557.1	$ 2,150.1	$ 1,557.1	$ 2,150.1