Compensation Plans - Compensation Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2022	May 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 42.9	$ 60.5	$ 87.4	$ 157.2
Profit sharing plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	2.3	1.3	7.6	5.3
Restricted cash awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	29.9	52.9	62.0	102.0
Stock options and Stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	0.0	1.9	0.0	41.3
Restricted stock and RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 10.7	$ 4.4	$ 17.8	$ 8.6