Valuation And Qualifying Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	$ 36.7	$ 38.0	$ 39.3
Charged to Costs and Expenses	7.8	12.6	3.7
Charged to Other Accounts	(1.5)	(1.5)	(2.3)
Deductions	(5.1)	(12.4)	(2.7)
Balance at End of Period	37.9	36.7	38.0
Allowance For Doubtful Receivables [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	5.2	5.6	6.4
Charged to Costs and Expenses	1.2	0.8	1.1
Charged to Other Accounts	(1.1)	(1.4)	(1.8)
Deductions	(0.1)	0.2	(0.1)
Balance at End of Period	5.2	5.2	5.6
Valuation Allowance On Net Deferred Tax Assets [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Period	31.5	32.4	32.9
Charged to Costs and Expenses	6.6	11.8	2.6
Charged to Other Accounts	(0.4)	(0.1)	(0.5)
Deductions	(5.0)	(12.6)	(2.6)
Balance at End of Period	$ 32.7	$ 31.5	$ 32.4