Financial Derivatives and Hedging - Narrative (Details) - USD ($) $ in Millions		9 Months Ended
	Apr. 06, 2020	Jul. 31, 2022	Jul. 31, 2021
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Pre-tax impact of gain on derivatives recognized in other comprehensive income (loss)		$ 72.9	$ 2.9
After tax impact of gain on derivatives recognized in other comprehensive income (loss)		55.2	$ 2.2
Derivative loss expected to be realized in earnings over the next twelve months		$ (22.3)
Interest Rate Swap
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, term of contract (or less)	7 years	5 years