Stock-Based Employee Compensation - Total Compensation Costs and Related Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
Feb. 28, 2025	Feb. 29, 2024	Feb. 28, 2023
Share-Based Payment Arrangement [Abstract]
Total compensation cost recognized in our results of operations	$ 72.2	$ 63.6	$ 68.5
Income tax benefit related thereto recognized in our results of operations	$ 10.6	$ 9.5	$ 8.0

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Name:	us-gaap_AllocatedShareBasedCompensationExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration