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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, 2024
Apr. 30, 2023
Apr. 30, 2024
Apr. 30, 2023
Fair Value Disclosures [Abstract]        
Fair Value Contingent Consideration, Beginning Balance $ 1 $ 3 $ 1 $ 67
Additions to contingent consideration (including measurement period adjustment) 0 5 0 5
Payments of contingent consideration 0 0 0 (65)
Change in fair value (included within SG&A) 0 0 0 1
Fair Value Contingent Consideration, Ending Balance $ 1 $ 8 $ 1 $ 8