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Compensation Plans - Compensation Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	May 31, 2025	May 31, 2024	May 31, 2025	May 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs	$ 151.6	$ 120.8	$ 309.7	$ 255.8
Profit sharing plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs	1.9	2.2	9.3	9.1
Restricted cash awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs	131.5	104.2	246.6	212.1
Restricted stock and RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs	$ 18.2	$ 14.4	$ 53.8	$ 34.6

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

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