XML 128 R98.htm IDEA: XBRL DOCUMENT v3.20.2
Derivatives - Schedule of Net Investment Hedge (Details) - USD ($)
$ in Millions
12 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2018
Net Investment Hedge      
Derivative Instruments and Hedging Activities Disclosures [Line Items]      
Gain (loss) recognized in other comprehensive income (loss) $ (33.0) $ 29.8 $ 6.2