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Derivative Financial Instruments - Contingent Features (Details) - USD ($)
$ in Millions
Nov. 30, 2024
Nov. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Derivative instrument liabilities with credit-risk-related contingent features $ 102.3 $ 139.5
Collateral posted (50.6) (97.6)
Collateral received 296.1 71.0
Return of and additional collateral required in the event of a credit rating downgrade below investment grade $ 347.8 $ 112.9