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CONSOLIDATED STATEMENT OF OPERATIONS - USD ($)
shares in Millions, $ in Millions
 12 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Oct. 31, 2018
Net Revenue:      
Total net revenue $ 4,221 $ 4,303 $ 3,878
Costs and expenses:      
Cost of Goods and Services Sold 1,688 1,769 1,767
Research and Development Expense 715 688 624
Selling, General and Administrative Expense 1,097 1,155 1,205
Goodwill impairment 0 0 709
Other Operating Income (Expense), Net (44) (20) (33)
Income (loss) from operations 765 711 (394)
Total costs and expenses 3,456 3,592 4,272
Interest income 11 23 12
Interest expense (78) (80) (83)
Other income (expense), net 63 61 54
Income (loss) before taxes 761 715 (411)
Provision (benefit) for income taxes 134 94 (576)
Net income $ 627 $ 621 $ 165
Net income per share:      
Basic (in dollars per share) $ 3.35 $ 3.31 $ 0.88
Diluted (in dollars per share) $ 3.31 $ 3.25 $ 0.86
Weighted average shares used in computing net income per share:      
Basic (in shares) 187 188 187
Diluted (in shares) 189 191 191
Products      
Net Revenue:      
Total net revenue $ 3,432 $ 3,554 $ 3,229
Costs and expenses:      
Cost of Goods and Services Sold 1,373 1,439 1,449
Service, Other [Member]      
Net Revenue:      
Total net revenue 789 749 649
Costs and expenses:      
Cost of Goods and Services Sold $ 315 $ 330 $ 318