NET INCOME PER SHARE NET INCOME PER SHARE (Computation) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2025	Apr. 30, 2024
Earnings Per Share [Abstract]
Net income	$ 257	$ 126	$ 426	$ 298
Basic weighted-average shares	172	174	173	175
Potential common shares	1	1	1	0
Diluted weighted-average shares	173	175	174	175
Net income per share - basic	$ 1.49	$ 0.73	$ 2.47	$ 1.71
Net income per share - diluted	$ 1.49	$ 0.72	$ 2.45	$ 1.70