Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Numerator:
Net earnings, basic	$ 607	$ 1,054	$ 1,229	$ 1,523
Net earnings, diluted	$ 607	$ 1,054	$ 1,229	$ 1,523
Denominator:
Weighted-average shares used to compute basic net EPS (in shares)	984	991	990	990
Dilutive effect of employee stock plans (shares)	6	7	6	7
Weighted-average shares used to compute diluted net EPS (in shares)	990	998	996	997
Net earnings per share:
Basic (usd per share)	$ 0.62	$ 1.06	$ 1.24	$ 1.54
Diluted (usd per share)	$ 0.61	$ 1.06	$ 1.23	$ 1.53
Anti-dilutive weighted-average stock-based compensation awards (shares)	3	5	3	7