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FAIR VALUE MEASUREMENTS - Reconciliation of Beginning and Ending Level 3 Contingent Consideration Liability (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Apr. 30, 2022
Apr. 30, 2021
Fair Value Disclosures [Abstract]        
Fair Value Contingent Consideration, Beginning Balance $ 92 $ 0 $ 89 $ 0
Additions to contingent consideration (including measurement period adjustment) 3 96 3 96
Change in fair value (included within SG&A) (28) 0 (25) 0
Fair Value Contingent Consideration, Ending Balance $ 67 $ 96 $ 67 $ 96