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REVENUE - Revenue by Type (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Apr. 30, 2022
Apr. 30, 2021
Net revenue $ 1,607 $ 1,525 $ 3,281 $ 3,073
Instrumentation        
Net revenue 646 632 1,337 1,313
Non-Instrumentation and Other        
Net revenue $ 961 $ 893 $ 1,944 $ 1,760