Supplementary Financial Information - Net Revenue by Region (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	$ 62,910	$ 63,460	$ 56,638
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	26,544	27,491	24,413
Europe, Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	21,300	22,216	19,624
Asia-Pacific and Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Total net revenue	$ 15,066	$ 13,753	$ 12,601