Supplementary Financial Information - Schedule of Net Revenue by Region (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2024	Jan. 31, 2023
Disaggregation of Revenue [Line Items]
Total net revenue	$ 13,185	$ 13,798
Americas
Disaggregation of Revenue [Line Items]
Total net revenue	5,408	5,747
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Total net revenue	4,668	4,636
Asia-Pacific and Japan
Disaggregation of Revenue [Line Items]
Total net revenue	$ 3,109	$ 3,415