Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2021	Oct. 31, 2020	Oct. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 2,944.7	$ 238.4	$ 466.7
Other comprehensive income (loss):
Cash flow hedges, net of tax provision of $8.2 and $(4.1) in fiscal 2021 and fiscal 2020, respectively	26.1	(13.0)	0.0
Change in minimum pension liability, net of tax provision of $7.2, $(4.0) and $(8.0), respectively	22.6	(12.8)	(25.4)
Foreign currency translation adjustment	82.0	0.9	9.0
Other comprehensive income (loss)	130.7	(24.9)	(16.4)
Comprehensive income	3,075.4	213.5	450.3
Comprehensive income attributable to Cooper stockholders	$ 3,075.4	$ 213.5	$ 450.3