Net Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021
Numerator:
Net earnings	$ 1,000	$ 1,228	$ 2,086	$ 2,296
Denominator:
Weighted-average shares used to compute basic net EPS (shares)	1,050	1,234	1,066	1,260
Dilutive effect of employee stock plans (shares)	12	13	12	10
Weighted-average shares used to compute diluted net EPS (shares)	1,062	1,247	1,078	1,270
Net earnings per share:
Basic (usd per share)	$ 0.95	$ 1.00	$ 1.96	$ 1.82
Diluted (usd per share)	$ 0.94	$ 0.98	$ 1.94	$ 1.81
Anti-dilutive weighted average stock-based compensation awards (shares)	1	0	4	3