v3.26.1
Business Segment Information - Schedule of Segment Information (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jul. 31, 2026
Jul. 31, 2025
Jul. 31, 2026
Jul. 31, 2025
Segment Reporting [Line Items]        
Total net sales $ 1,066.2 $ 1,060.3 $ 3,171.8 $ 3,027.3
Operating Segments | Coopervision Segment        
Segment Reporting [Line Items]        
Total net sales 717.0 718.4 2,135.6 2,034.1
Operating Segments | Coopersurgical Segment        
Segment Reporting [Line Items]        
Total net sales 349.2 341.9 1,036.2 993.2
Operating Segments | Toric and multifocal | Coopervision Segment        
Segment Reporting [Line Items]        
Total net sales 363.8 358.8 1,079.9 1,006.6
Operating Segments | Sphere, other | Coopervision Segment        
Segment Reporting [Line Items]        
Total net sales 353.2 359.6 1,055.7 1,027.5
Operating Segments | Office and surgical | Coopersurgical Segment        
Segment Reporting [Line Items]        
Total net sales 208.0 204.8 624.6 609.5
Operating Segments | Fertility | Coopersurgical Segment        
Segment Reporting [Line Items]        
Total net sales $ 141.2 $ 137.1 $ 411.6 $ 383.7