Earnings Per Share (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
Numerator:
Net earnings, basic	$ 406	$ 607	$ 971	$ 1,229
Net earnings, diluted	$ 406	$ 607	$ 971	$ 1,229
Denominator:
Weighted-average shares used to compute basic net EPS (in shares)	950	984	949	990
Dilutive effect of employee stock plans (in shares)	6	6	7	6
Weighted-average shares used to compute diluted net EPS (in shares)	956	990	956	996
Net earnings per share:
Basic (usd per share)	$ 0.43	$ 0.62	$ 1.02	$ 1.24
Diluted (usd per share)	$ 0.42	$ 0.61	$ 1.02	$ 1.23
Anti-dilutive weighted-average stock-based compensation awards (in shares)	10	3	7	3