NET INCOME PER SHARE NET INCOME PER SHARE (Computation) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Earnings Per Share [Abstract]
Net income	$ 191	$ 389	$ 617	$ 687
Basic weighted-average shares	172	174	172	174
Potential common shares	1	1	1	1
Diluted weighted-average shares	173	175	173	175
Net income per share - basic	$ 1.11	$ 2.23	$ 3.58	$ 3.94
Net income per share - diluted	$ 1.10	$ 2.22	$ 3.56	$ 3.92