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REVENUE - Revenue by End Markets (Details) - USD ($)
$ in Millions
3 Months Ended
Jan. 31, 2024
Jan. 31, 2023
Net revenue $ 1,658 $ 1,756
Pharmaceutical and Biopharmaceutical    
Net revenue 565 639
Chemicals and Advanced Materials    
Net revenue 392 406
Diagnostics and Clinical    
Net revenue 228 239
Food    
Net revenue 157 160
Academia and Government    
Net revenue 150 146
Environmental and Forensics    
Net revenue $ 166 $ 166