NET INCOME PER SHARE (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Jan. 31, 2021	Jan. 31, 2020
Numerator:
Net income	$ 288	$ 197
Denominators:
Basic weighted-average shares	306,000	310,000
Potential common shares - stock options and other employee stock plans	3,000	3,000
Diluted weighted average shares	309,000	313,000
Anti-dilutive shares excluded from computation of dilutive earnings per share (in shares)	0	0