Earnings Per Share (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
Numerator:
Net earnings, basic	$ 763	$ 640	$ 1,734	$ 1,869
Net earnings, diluted	$ 763	$ 640	$ 1,734	$ 1,869
Denominator:
Weighted-average shares used to compute basic net EPS (in shares)	947	979	948	986
Dilutive effect of employee stock plans (in shares)	7	11	7	8
Weighted-average shares used to compute diluted net EPS (in shares)	954	990	955	994
Net earnings per share:
Basic (usd per share)	$ 0.81	$ 0.65	$ 1.83	$ 1.90
Diluted (usd per share)	$ 0.80	$ 0.65	$ 1.82	$ 1.88
Anti-dilutive effect of employee stock plans (in shares)	14	0	8	2