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Compensation Plans - Compensation Cost (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Aug. 31, 2025	Aug. 31, 2024	Aug. 31, 2025	Aug. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs	$ 142.5	$ 119.2	$ 452.1	$ 374.9
Profit sharing plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs	2.2	2.1	11.4	11.2
Restricted cash awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs	126.3	103.7	372.9	315.8
Restricted stock and RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs	$ 14.0	$ 13.4	$ 67.8	$ 47.9

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- Definition

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

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