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Derivative Financial Instruments - Contingent Features (Details) - USD ($)
$ in Millions
Feb. 28, 2026
Nov. 30, 2025
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Derivative instrument liabilities with credit-risk-related contingent features $ 98.9 $ 107.3
Collateral posted (13.2) (70.0)
Collateral received 611.4 343.3
Return of and additional collateral required in the event of a credit rating downgrade below investment grade $ 697.1 $ 380.5