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FAIR VALUE MEASUREMENTS - Equity Securities and Investments (Details) - USD ($)
$ in Millions
3 Months Ended
Jan. 31, 2023
Jan. 31, 2022
Fair Value Disclosures [Abstract]    
Net (gain) loss on equity securities $ 10 $ 47
Equity Securities, FV-NI, Realized Gain (Loss) 11 0
Unrealized gain (loss) on equity securities (1) 47
Impairment of Investments $ 0 $ 0