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OVERVIEW, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jul. 31, 2024
Jul. 31, 2024
Oct. 31, 2023
Jul. 31, 2023
Oct. 31, 2022
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents          
Cash and cash equivalents $ 1,779 $ 1,779 $ 1,590    
Restricted Cash included in other assets 3 3 3    
Cash, cash equivalents, restricted cash and restricted cash equivalents 1,782 1,782 1,593 $ 1,332 $ 1,056
Operating Leases          
Right-of-Use Asset $ 178 $ 178 $ 154    
Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Other assets Other assets Other assets    
Operating lease liability $ 184 $ 184 $ 164    
Operating Lease Liability, Statement of Financial Position [Extensible Enumeration] Other accrued liabilities, Other long-term liabilities Other accrued liabilities, Other long-term liabilities Other accrued liabilities, Other long-term liabilities    
Variable Interest Entity          
Noncontrolling Interest in Variable Interest Entity $ 93 $ 93 $ 82    
Fair Value of Financial Instruments          
Carrying Value of Senior Notes 2,137 2,137 2,135    
BIOVECTRA          
Business Acquisition, Date of Acquisition [Abstract]          
Business Combination, Price of Acquisition, Expected 925 925      
Quoted Prices in Active Markets for Identical Assets (Level 1) | Senior Notes          
Fair Value of Financial Instruments          
Fair Value of Senior Notes $ 1,905 $ 1,905 $ 1,747