Basis of Presentation and Significant Accounting Policies (Narratives) (Details) - USD ($) $ in Millions	3 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Nov. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash equivalents	$ 488.4		$ 508.2
Other comprehensive income (loss)	$ 138.7	$ 125.5