Supplementary Financial Information - Schedule of Net Revenue by Region (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2025	Jan. 31, 2024
Disaggregation of Revenue [Line Items]
Total net revenue	$ 13,504	$ 13,185
Americas
Disaggregation of Revenue [Line Items]
Total net revenue	5,519	5,408
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Total net revenue	4,754	4,668
Asia-Pacific and Japan
Disaggregation of Revenue [Line Items]
Total net revenue	$ 3,231	$ 3,109