Segment Information - Schedule of Net Revenue by Segment and Business Unit (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Segment Information
Total net revenue	$ 12,684	$ 12,246
Total segment net revenue
Segment Information
Total net revenue	12,709	12,112
Total segment net revenue | Personal Systems
Segment Information
Total net revenue	8,224	7,467
Total segment net revenue | Personal Systems | Notebooks
Segment Information
Total net revenue	4,890	4,205
Total segment net revenue | Personal Systems | Desktops
Segment Information
Total net revenue	2,534	2,527
Total segment net revenue | Personal Systems | Workstations
Segment Information
Total net revenue	491	444
Total segment net revenue | Personal Systems | Other
Segment Information
Total net revenue	309	291
Total segment net revenue | Printing
Segment Information
Total net revenue	4,483	4,642
Total segment net revenue | Printing | Supplies
Segment Information
Total net revenue	3,007	3,101
Total segment net revenue | Printing | Commercial Hardware
Segment Information
Total net revenue	886	964
Total segment net revenue | Printing | Consumer Hardware
Segment Information
Total net revenue	590	577
Total segment net revenue | Corporate Investments
Segment Information
Total net revenue	2	3
Intersegment net revenue eliminations and other
Segment Information
Total net revenue	$ (25)	$ 134