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REVENUE - Revenue by Type (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 30, 2024
Apr. 30, 2023
Apr. 30, 2024
Apr. 30, 2023
Net revenue $ 1,573 $ 1,717 $ 3,231 $ 3,473
Instrumentation        
Net revenue 548 689 1,178 1,448
Non-Instrumentation and Other        
Net revenue $ 1,025 $ 1,028 $ 2,053 $ 2,025