Earnings Per Share - Schedule of Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended				6 Months Ended
		Apr. 30, 2024	Jan. 31, 2024	Apr. 30, 2023	Jan. 31, 2023	Apr. 30, 2024	Apr. 30, 2023
Earnings Per Share [Abstract]
Net income		$ 88.9	$ 81.2	$ 39.8	$ 84.6	$ 170.1	$ 124.4
Basic:
Weighted-average common shares (in shares)	[1]	198.9		197.9		198.6	197.7
Basic earnings per share (in dollars per share)	[1]	$ 0.45		$ 0.20		$ 0.86	$ 0.63
Diluted:
Weighted-average common shares (in shares)	[1]	198.9		197.9		198.6	197.7
Effect of dilutive stock plans (in shares)		1.6		1.3		1.6	1.2
Diluted weighted average common shares (in shares)	[1]	200.5		199.2		200.2	198.9
Diluted earnings per share (in dollars per share)	[1]	$ 0.44		$ 0.20		$ 0.85	$ 0.63

[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.