STOCKHOLDER'S EQUITY - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance			$ 5,105
Other comprehensive income (loss) before reclassifications	$ (2)	$ 32	74	$ 28
Amounts reclassified out of accumulated other comprehensive gain (loss)	(2)	1	(9)	3
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	2	(1)	4	(2)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	(2)	32	69	29
Ending Balance	5,670		5,670
Foreign currency translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(57)	(172)	(136)	(167)
Other comprehensive income (loss) before reclassifications	(7)	32	72	27
Amounts reclassified out of accumulated other comprehensive gain (loss)	0	0	0	0
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	0	0	0	0
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	(7)	32	72	27
Ending Balance	(64)	(140)	(64)	(140)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(315)	(383)	(317)	(388)
Other comprehensive income (loss) before reclassifications	0	0	0	0
Amounts reclassified out of accumulated other comprehensive gain (loss)	0	4	2	11
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	0	(1)	0	(3)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	0	3	2	8
Ending Balance	(315)	(380)	(315)	(380)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	79	86	89	89
Other comprehensive income (loss) before reclassifications	5	0	2	1
Amounts reclassified out of accumulated other comprehensive gain (loss)	(2)	(3)	(11)	(8)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent	2	0	4	1
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total	5	(3)	(5)	(6)
Ending Balance	84	83	84	83
AOCI Attributable to Parent
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(293)	(469)	(364)	(466)
Ending Balance	$ (295)	$ (437)	$ (295)	$ (437)