Financial Instruments (Narrative) (Details) € in Millions |
6 Months Ended | 12 Months Ended | ||
---|---|---|---|---|
Mar. 31, 2022
EUR (€)
|
Mar. 31, 2022
USD ($)
|
Sep. 30, 2021
EUR (€)
|
Sep. 30, 2021
USD ($)
|
|
Derivative [Line Items] | ||||
Net liability position of derivatives with credit risk-related contingent features | $ 110,100,000 | $ 53,400,000 | ||
Collateral posted on liability positions with credit risk-related contingent features | 0 | |||
Collateral amount that counterparties would be required to post | $ 28,600,000 | 38,100,000 | ||
Forward exchange contracts | Cash Flow Hedges | ||||
Derivative [Line Items] | ||||
Maximum remaining maturity of foreign currency derivatives | 3 years 9 months 18 days | 3 years 9 months 18 days | ||
Foreign currency debt | Euro Denominated | ||||
Derivative [Line Items] | ||||
Notional amount included in designated foreign currency denominated debt | € 1,304.6 | $ 1,443,900,000 | € 1,297.5 | $ 1,502,600,000 |