XML 82 R66.htm IDEA: XBRL DOCUMENT v3.6.0.2
Stock-Based Compensation (Details 3) - USD ($)
12 Months Ended
Oct. 31, 2016
Oct. 31, 2015
Oct. 31, 2014
Nov. 01, 2015
Share-based compensation        
Common stock, authorized (shares) 9,600,000,000      
Maximum contribution limit as percentage of base compensation (as a percent) 15.00%      
Offering period 24 months      
Current offering period 6 months      
Stock-based compensation expense, net of tax $ 416,000,000 $ 400,000,000 $ 286,000,000  
Employee Stock Purchase Plan        
Share-based compensation        
Common stock, authorized (shares)       80,000,000
Maximum contribution limit as percentage of base compensation (as a percent) 10.00% 10.00%    
Stock purchase price as a percentage of the fair market value on the purchase date 95.00% 95.00%    
Stock-based compensation expense, net of tax $ 0 $ 0    
Stock Options        
Share-based compensation        
Unrecognized pre-tax stock-based compensation expense $ 58,000,000