XML 101 R85.htm IDEA: XBRL DOCUMENT v3.6.0.2
Financial Instruments (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 31, 2016
Oct. 31, 2015
Oct. 31, 2014
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Gross Unrealized Gains $ 69 $ 76  
Available-for-sale securities, Gross Unrealized Losses (16) (22)  
Interest income 122 54 $ 64
Debt securities      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Gross Unrealized Gains 69 69  
Available-for-sale securities, Gross Unrealized Losses (12) (13)  
Gross unrealized loss of debt security in a continuous loss position for more than 12 months 12 13  
Foreign bonds      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Gross Unrealized Gains 69 69  
Other debt securities      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Gross Unrealized Losses (12) (13)  
Equity-related investments      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Gross Unrealized Gains 0 7  
Available-for-sale securities, Gross Unrealized Losses (4) (9)  
Public equity securities      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Gross Unrealized Gains 0 7  
Available-for-sale securities, Gross Unrealized Losses (4) (9)  
Cost      
Cash equivalents and available-for-sale investments      
Cash equivalents 10,623 7,132  
Available-for-sale securities, Cost 297 531  
Total cash equivalents and available-for-sale investments 10,920 7,663  
Cost | Debt securities      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Cost 276 403  
Cost | Time deposits      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Cost 11 106  
Cost | Foreign bonds      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Cost 218 244  
Cost | Other debt securities      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Cost 47 53  
Cost | Equity-related investments      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Cost 21 128  
Cost | Mutual funds      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Cost 0 73  
Cost | Public equity securities      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Cost 21 55  
Cost | Time deposits      
Cash equivalents and available-for-sale investments      
Cash equivalents 4,074 2,367  
Cost | Money market funds      
Cash equivalents and available-for-sale investments      
Cash equivalents 6,549 4,592  
Cost | Mutual funds      
Cash equivalents and available-for-sale investments      
Cash equivalents 0 173  
Fair Value      
Cash equivalents and available-for-sale investments      
Cash equivalents 10,623 7,132  
Available-for-sale securities, Estimated Fair Value 350 585  
Total cash equivalents and available-for-sale investments 10,973 7,717  
Fair Value | Debt securities      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Estimated Fair Value 333 459  
Fair Value | Time deposits      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Estimated Fair Value 11 106  
Fair Value | Foreign bonds      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Estimated Fair Value 287 313  
Fair Value | Other debt securities      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Estimated Fair Value 35 40  
Fair Value | Equity-related investments      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Estimated Fair Value 17 126  
Fair Value | Mutual funds      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Estimated Fair Value 0 73  
Fair Value | Public equity securities      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Estimated Fair Value 17 53  
Fair Value | Time deposits      
Cash equivalents and available-for-sale investments      
Cash equivalents 4,074 2,367  
Fair Value | Money market funds      
Cash equivalents and available-for-sale investments      
Cash equivalents 6,549 4,592  
Fair Value | Mutual funds      
Cash equivalents and available-for-sale investments      
Cash equivalents 0 $ 173  
MphasiS | Cost | Time deposits      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Cost 41    
MphasiS | Cost | Foreign bonds      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Cost 37    
MphasiS | Cost | Mutual funds      
Cash equivalents and available-for-sale investments      
Available-for-sale securities, Cost 118    
MphasiS | Cost | Time deposits      
Cash equivalents and available-for-sale investments      
Cash equivalents 33    
MphasiS | Cost | Mutual funds      
Cash equivalents and available-for-sale investments      
Cash equivalents $ 214