Stockholders' Equity - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) Income (Details) - USD ($) $ in Millions	6 Months Ended
	Apr. 30, 2025	Apr. 30, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 8,083.6	$ 7,551.0
Gross change in value	22.5	29.1
Tax effect	6.9	2.1
Ending balance	8,288.1	7,803.9
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(421.7)	(453.8)
Ending balance	(392.3)	(422.6)
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(461.7)	(538.0)
Gross change in value	51.0	37.8
Tax effect	0.0	0.0
Ending balance	(410.7)	(500.2)
Minimum Pension Liability
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(4.9)	(3.2)
Gross change in value	0.0	0.0
Tax effect	0.0	0.0
Ending balance	(4.9)	(3.2)
Derivative Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	44.9	87.4
Gross change in value	(28.5)	(8.7)
Tax effect	6.9	2.1
Ending balance	$ 23.3	$ 80.8