Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Total	Common Shares	Treasury Stock	Treasury Stock Par Net Value	Additional Paid-In Capital	Accumulated Other Comprehensive Income Loss	Retained Earnings	Noncontrolling Interests	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjustment Retained Earnings
Common stock, beginning balance (in shares) at Oct. 31, 2020		49,100,000
Treasury stock, beginning balance (in shares) at Oct. 31, 2020			4,300,000
Beginning balance at Oct. 31, 2020	$ 3,824.8	$ 4.9	$ (617.3)	$ 0.4	$ 1,646.8	$ (472.0)	$ 3,261.8	$ 0.2	$ (1.4)	$ (1.4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,944.7						2,944.7
Other comprehensive income (loss), net of tax	130.7					130.7
Issuance of common stock for stock plans, net and employee stock purchase plan (in shares)		300,000
Issuance of common stock for stock plans, net and employee stock purchase plan	27.2		$ 2.5		24.6
Treasury stock repurchase (in shares)		100,000	100,000
Treasury stock repurchase	(24.8)		$ (24.8)
Dividends on common stock ($0.03 per share)	(3.0)						(3.0)
Share-based compensation expense	43.8				43.8
Common stock, ending balance (in shares) at Oct. 31, 2021		49,300,000
Treasury stock, ending balance (in shares) at Oct. 31, 2021			4,400,000
Ending balance at Oct. 31, 2021	6,942.0	$ 5.0	$ (639.6)	0.4	1,715.2	(341.3)	6,202.1	0.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	385.8						385.8
Other comprehensive income (loss), net of tax	(125.5)					(125.5)
Issuance of common stock for stock plans, net and employee stock purchase plan (in shares)		100,000
Issuance of common stock for stock plans, net and employee stock purchase plan	$ 1.5		$ 3.6		(2.1)
Treasury stock repurchase (in shares)	191,200	100,000	100,000
Treasury stock repurchase	$ (78.5)		$ (78.5)
Dividends on common stock ($0.03 per share)	(3.0)						(3.0)
Share-based compensation expense	$ 52.4				52.4
Common stock, ending balance (in shares) at Oct. 31, 2022	49,300,000	49,300,000
Treasury stock, ending balance (in shares) at Oct. 31, 2022	4,500,000		4,500,000
Ending balance at Oct. 31, 2022	$ 7,174.7	$ 5.0	$ (714.5)	0.4	1,765.5	(466.8)	6,584.9	0.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	294.2						294.2
Other comprehensive income (loss), net of tax	13.0					13.0
Issuance of common stock for stock plans, net and employee stock purchase plan (in shares)		200,000	100,000
Issuance of common stock for stock plans, net and employee stock purchase plan	$ 11.3		$ 4.2		7.1
Treasury stock repurchase (in shares)	0
Dividends on common stock ($0.03 per share)	$ (3.0)						(3.0)
Share-based compensation expense	$ 60.8				60.8
Common stock, ending balance (in shares) at Oct. 31, 2023	49,500,000	49,500,000
Treasury stock, ending balance (in shares) at Oct. 31, 2023	4,400,000		4,400,000
Ending balance at Oct. 31, 2023	$ 7,551.0	$ 5.0	$ (710.3)	$ 0.4	$ 1,833.4	$ (453.8)	$ 6,876.1	$ 0.2