Supplementary Financial Information - Schedule of Net Revenue by Region (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Disaggregation of Revenue [Line Items]
Total net revenue	$ 13,519	$ 13,196	$ 39,504	$ 39,901
Americas
Disaggregation of Revenue [Line Items]
Total net revenue	6,086	5,880	17,085	17,052
Europe, Middle East and Africa (“EMEA”)
Disaggregation of Revenue [Line Items]
Total net revenue	4,420	4,285	13,461	13,330
Asia-Pacific and Japan
Disaggregation of Revenue [Line Items]
Total net revenue	$ 3,013	$ 3,031	$ 8,958	$ 9,519