FAIR VALUE MEASUREMENTS (Fair value of assets and liabilities measured on a recurring basis) (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions	Apr. 30, 2025	Oct. 31, 2024
Assets Short - term [Abstract]
Money market funds	$ 2,649	$ 1,141
Derivative instruments (foreign exchange contracts)	33	38
Assets, Long-term [Abstract]
Equity investments	104	80
Equity investments - other	34	29
Total assets measured at fair value	2,820	1,288
Liabilities, Short-term [Abstract]
Derivative instruments (foreign exchange contracts)	15	6
Liabilities Long-term [Abstract]
Deferred compensation liability	34	34
Total liabilities measured at fair value	49	40
Level 1
Assets Short - term [Abstract]
Money market funds	2,649	1,141
Derivative instruments (foreign exchange contracts)	0	0
Assets, Long-term [Abstract]
Equity investments	104	80
Equity investments - other	0	0
Total assets measured at fair value	2,753	1,221
Liabilities, Short-term [Abstract]
Derivative instruments (foreign exchange contracts)	0	0
Liabilities Long-term [Abstract]
Deferred compensation liability	0	0
Total liabilities measured at fair value	0	0
Level 2
Assets Short - term [Abstract]
Money market funds	0	0
Derivative instruments (foreign exchange contracts)	33	38
Assets, Long-term [Abstract]
Equity investments	0	0
Equity investments - other	0	0
Total assets measured at fair value	33	38
Liabilities, Short-term [Abstract]
Derivative instruments (foreign exchange contracts)	15	6
Liabilities Long-term [Abstract]
Deferred compensation liability	34	34
Total liabilities measured at fair value	49	40
Level 3
Assets Short - term [Abstract]
Money market funds	0	0
Derivative instruments (foreign exchange contracts)	0	0
Assets, Long-term [Abstract]
Equity investments	0	0
Equity investments - other	0	0
Total assets measured at fair value	0	0
Liabilities, Short-term [Abstract]
Derivative instruments (foreign exchange contracts)	0	0
Liabilities Long-term [Abstract]
Deferred compensation liability	0	0
Total liabilities measured at fair value	$ 0	$ 0