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Acquisitions and Assets Held for Sale - Narrative (Details) - USD ($)
3 Months Ended 12 Months Ended
Feb. 02, 2021
Jan. 19, 2021
Jan. 31, 2022
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2019
Feb. 01, 2021
Business Acquisition [Line Items]              
Goodwill       $ 2,574,000,000 $ 2,447,300,000 $ 2,428,900,000  
Contingent consideration, change in fair value       66,100,000 $ 0 $ 0  
Equity Interest In Wholly-Owned Subsidiary | Disposal Group, Held-for-sale, Not Discontinued Operations              
Business Acquisition [Line Items]              
Percentage of voting interests sold 50.00%            
Ownership interest retained after sale of business 50.00%            
Asset impairment       0      
Privately-Held Medical Device Company, Developed Mara Water Vapor Ablation System              
Business Acquisition [Line Items]              
Goodwill             $ 0
Privately-Held Medical Device Company, Spectacle Lenses              
Business Acquisition [Line Items]              
Equity investment gain realized before acquisition of remaining equity interest   $ 11,500,000          
Payments to acquire business   40,900,000          
Contingent consideration   37,900,000          
Contingent consideration paid       0      
Contingent consideration, change in fair value       $ 56,800,000      
Privately-Held Medical Device Company, Spectacle Lenses, Portion Attributable To Former Equity Interest Owners              
Business Acquisition [Line Items]              
Undiscounted range of the contingent consideration, minimum   0          
Undiscounted range of the contingent consideration, maximum   139,100,000          
Contingent consideration   $ 30,200,000          
Generate Life Sciences | Subsequent Event | Forecast              
Business Acquisition [Line Items]              
Payments to acquire business     $ 1,605,000,000