Earnings Per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended						9 Months Ended
		Jul. 31, 2024	Apr. 30, 2024	Jan. 31, 2024	Jul. 31, 2023	Apr. 30, 2023	Jan. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Earnings Per Share [Abstract]
Net income		$ 104.7	$ 88.9	$ 81.2	$ 85.3	$ 39.8	$ 84.6	$ 274.8	$ 209.7
Basic:
Weighted-average common shares (in shares)	[1]	199.1			198.1			198.8	197.8
Basic earnings per share (in dollars per share)	[1]	$ 0.53			$ 0.43			$ 1.38	$ 1.06
Diluted:
Weighted-average common shares (in shares)	[1]	199.1			198.1			198.8	197.8
Effect of dilutive stock plans (in shares)		1.5			1.5			1.5	1.4
Diluted weighted average common shares (in shares)	[1]	200.6			199.6			200.3	199.2
Diluted earnings per share (in dollars per share)	[1]	$ 0.52			$ 0.43			$ 1.37	$ 1.05

[1] All periods presented have been adjusted to reflect the four-for-one stock split effected on February 16, 2024. Refer to Note 1. General for further information.