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CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) - USD ($)
shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Jul. 31, 2020
Jul. 31, 2019
Jul. 31, 2020
Jul. 31, 2019
Net revenue:        
Revenues $ 1,011 $ 1,087 $ 3,001 $ 3,183
Costs and expenses:        
Cost of Goods and Services Sold 405 444 1,224 1,314
Research and development 169 168 522 512
Selling, general and administrative 259 281 810 869
Other operating expense (income), net (4) (3) (42) (15)
Total costs and expenses 829 890 2,514 2,680
Income from operations 182 197 487 503
Interest income 1 7 11 17
Interest expense (20) (20) (59) (60)
Other income (expense), net 22 15 56 52
Income before taxes 185 199 495 512
Provision for income taxes 9 40 85 86
Net income $ 176 $ 159 $ 410 $ 426
Net income per share:        
Basic (in dollars per share) $ 0.94 $ 0.85 $ 2.19 $ 2.27
Diluted (in dollars per share) $ 0.93 $ 0.83 $ 2.16 $ 2.23
Weighted average shares used in computing net income per share:        
Basic (in shares) 187 188 187 188
Diluted (in shares) 190 191 190 191
Products        
Net revenue:        
Revenues $ 813 $ 904 $ 2,423 $ 2,652
Costs and expenses:        
Cost of Goods and Services Sold 330 361 992 1,068
Services and other        
Net revenue:        
Revenues 198 183 578 531
Costs and expenses:        
Cost of Goods and Services Sold $ 75 $ 83 $ 232 $ 246