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CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) - USD ($)
shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Jul. 31, 2016
Jul. 31, 2015
Jul. 31, 2016
Jul. 31, 2015
Net revenue [Abstract]        
Products $ 591 $ 557 $ 1,810 $ 1,783
Services and other 124 108 357 323
Total net revenue 715 665 2,167 2,106
Costs and expenses:        
Cost of products 246 236 776 760
Cost of services and other 63 59 187 177
Total costs 309 295 963 937
Research and development 104 90 320 282
Selling, general and administrative 200 183 607 581
Other Operating Expense (Income), Net (4) (3) (22) (14)
Total costs and expenses 609 565 1,868 1,786
Income from operations 106 100 299 320
Interest income 1 0 2 1
Interest expense (11) (12) (35) (35)
Other income (expense), net 1 (1) 2 1
Income before taxes, as reported 97 87 268 287
Provision for income taxes 6 17 25 51
Net Income $ 91 $ 70 $ 243 $ 236
Net income per share:        
Basic (in dollars per share) $ 0.54 $ 0.41 $ 1.43 $ 1.40
Diluted (in dollars per share) $ 0.53 $ 0.41 $ 1.41 $ 1.38
Weighted average shares used in computing net income per share:        
Basic (in shares) 170 169 170 169
Diluted (in shares) 172 172 172 171