XML 99 R59.htm IDEA: XBRL DOCUMENT v3.19.3
Derivative Financial Instruments - Contingent Features (Detail) - USD ($)
$ in Millions
Aug. 31, 2019
Nov. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]    
Derivative instrument liabilities with credit-risk-related contingent features $ 113.7 $ 93.5
Collateral posted (80.0) (61.5)
Collateral received 57.0 91.5
Return of and additional collateral required in the event of a credit rating downgrade below investment grade (1) $ 90.6 $ 123.3