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REVENUE - Revenue by End Markets (Details) - USD ($)
$ in Millions
3 Months Ended
Jan. 31, 2025
Jan. 31, 2024
Net revenue $ 1,681 $ 1,658
Pharmaceutical and Biopharmaceutical    
Net revenue 585 565
Diagnostics and Clinical    
Net revenue 240 228
Academic and Government    
Net revenue 137 150
Chemicals and Advanced Materials    
Net revenue 379 392
Food    
Net revenue 168 157
Environmental and Forensics    
Net revenue $ 172 $ 166