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Derivative Financial Instruments - Contingent Features (Details) - USD ($)
$ in Millions
Aug. 31, 2025
Nov. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Derivative instrument liabilities with credit-risk-related contingent features $ 139.5 $ 102.3
Collateral posted (87.9) (50.6)
Collateral received 285.8 296.1
Return of and additional collateral required in the event of a credit rating downgrade below investment grade $ 337.4 $ 347.8