Stockholders' Equity - Changes in Accumulated Other Comprehensive Income (Loss) Income (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 7,174.7	$ 6,942.0	$ 3,824.8
Gross change in value	11.6	(90.7)	146.3
Tax effect	1.4	(34.8)	(15.6)
Ending balance	7,551.0	7,174.7	6,942.0
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(466.8)	(341.3)	(472.0)
Ending balance	(453.8)	(466.8)	(341.3)
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(555.0)	(320.3)	(402.3)
Gross change in value	17.0	(234.7)	82.2
Tax effect	0.0	0.0	(0.2)
Ending balance	(538.0)	(555.0)	(320.3)
Derivatives
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	94.4	13.1	(13.0)
Gross change in value	(9.4)	107.4	34.3
Tax effect	2.4	(26.1)	(8.2)
Ending balance	87.4	94.4	13.1
Minimum Pension Liability
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(6.2)	(34.1)	(56.7)
Gross change in value	4.0	36.6	29.8
Tax effect	(1.0)	(8.7)	(7.2)
Ending balance	$ (3.2)	$ (6.2)	$ (34.1)