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Derivative Financial Instruments - Contingent Features (Details) - USD ($)
$ in Millions
Nov. 30, 2021
Nov. 30, 2020
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Derivative instrument liabilities with credit-risk-related contingent features $ 821.5 $ 284.6
Collateral posted (160.5) (129.8)
Collateral received 369.3 141.4
Return of and additional collateral required in the event of a credit rating downgrade below investment grade $ 1,030.4 $ 296.2