Supplementary Financial Information - Schedule of Net Revenue by Region (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Apr. 30, 2024	Apr. 30, 2023
Disaggregation of Revenue [Line Items]
Total net revenue	$ 12,800	$ 12,907	$ 25,985	$ 26,705
Americas
Disaggregation of Revenue [Line Items]
Total net revenue	5,591	5,425	10,999	11,172
Europe, Middle East and Africa (“EMEA”)
Disaggregation of Revenue [Line Items]
Total net revenue	4,373	4,409	9,041	9,045
Asia-Pacific and Japan
Disaggregation of Revenue [Line Items]
Total net revenue	$ 2,836	$ 3,073	$ 5,945	$ 6,488