Basis of Presentation and Significant Accounting Policies (Narratives) (Details) - USD ($) $ in Millions	3 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Nov. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash equivalents	$ 51.3		$ 15.8
Other comprehensive income (loss)	$ 125.5	$ 134.3