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Segment Information (Detail)
$ in Millions
3 Months Ended 12 Months Ended
Jan. 31, 2016
USD ($)
segment
Jan. 31, 2015
USD ($)
Oct. 31, 2015
USD ($)
Segment Information      
Number of reportable segments | segment 3    
Advance royalty proceeds received from intercompany advanced royalty payments and licensing arrangements     $ 3,800
Royalty recognition term     5 years
Net revenue $ 12,246 $ 13,858  
Earnings (loss) from operations 928 1,118  
Intersegment net revenue eliminations and other      
Segment Information      
Net revenue 134 (312)  
Operating segments      
Segment Information      
Net revenue 12,112 14,170  
Earnings (loss) from operations 993 1,348  
Personal Systems | Operating segments      
Segment Information      
Net revenue 7,467 8,562  
Earnings (loss) from operations 229 303  
Printing | Operating segments      
Segment Information      
Net revenue 4,642 5,596  
Earnings (loss) from operations 787 1,050  
Corporate Investments | Operating segments      
Segment Information      
Net revenue 3 12  
Earnings (loss) from operations (23) (5)  
Personal Systems and Printing Group | Personal Systems | Operating segments      
Segment Information      
Net revenue 7,467 8,562  
Personal Systems and Printing Group | Printing | Operating segments      
Segment Information      
Net revenue $ 4,642 $ 5,596