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ACQUISITIONS - Text (Details) - USD ($)
$ in Millions
Aug. 23, 2019
Nov. 14, 2018
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2019
ACEA Biosciences, Inc.          
Business Acquisition [Line Items]          
Purchase price for acquisition   $ 250      
BioTek          
Business Acquisition [Line Items]          
Purchase price for acquisition $ 1,170        
Cash payment to acquire business 470        
Liability incurred to pay for acquisition $ 700        
Acquisition transaction costs     $ 25 $ 12 $ 4