CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) (USD $)
In Millions, except Per Share data, unless otherwise specified
 3 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Net revenue [Abstract]    
Products $ 815 $ 803
Services and other 211 205
Total net revenue 1,026 1,008
Costs and expenses:    
Cost of products 395 382
Cost of services and other 118 116
Total costs 513 498
Research and development 88 88
Selling, general and administrative 310 298
Total costs and expenses 911 884
Income from operations 115 124
Interest income 2 2
Interest expense (16) (29)
Other income (expense), net 12 0
Income from continuing operations before taxes 113 97
Provision (benefit) for income taxes 11 (24)
Income from continuing operations 102 121
Income (loss) from discontinued operations (net of tax expense (benefit) of $(2) million and $20 million) (30) 74
Net income $ 72 $ 195
Net income per share - basic    
Income from continuing operations $ 0.30 $ 0.37
Income (loss) from discontinued operations $ (0.09) $ 0.22
Net income per share - basic $ 0.21 $ 0.59
Net income per share - diluted    
Income from continuing operations $ 0.30 $ 0.36
Income (loss) from discontinued operations $ (0.09) $ 0.22
Net income per share - diluted $ 0.21 $ 0.58
Weighted average shares used in computing net income per share:    
Basic (in shares) 336 333
Diluted (in shares) 338 338
Cash dividends declared per common share $ 0.100 $ 0.132