XML 106 R59.htm IDEA: XBRL DOCUMENT v3.7.0.1
Goodwill and Intangible Assets (Schedule Of Changes In The Carrying Amount Of Goodwill) (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2017
Apr. 01, 2016
Goodwill [Roll Forward]    
Beginning balance $ 3,148 $ 3,146
Translation adjustments (5) 2
Ending balance 8,627 3,148
Consumer Digital Safety    
Goodwill [Roll Forward]    
Beginning balance 1,231 1,230
Translation adjustments 0 1
Ending balance 2,549 1,231
Enterprise Security    
Goodwill [Roll Forward]    
Beginning balance 1,917 1,916
Translation adjustments (5) 1
Ending balance 6,078 $ 1,917
Blue Coat, Inc.    
Goodwill [Roll Forward]    
Acquisitions 4,083  
Blue Coat, Inc. | Consumer Digital Safety    
Goodwill [Roll Forward]    
Acquisitions 0  
Blue Coat, Inc. | Enterprise Security    
Goodwill [Roll Forward]    
Acquisitions 4,083  
LifeLock    
Goodwill [Roll Forward]    
Acquisitions 1,401  
LifeLock | Consumer Digital Safety    
Goodwill [Roll Forward]    
Acquisitions 1,318  
LifeLock | Enterprise Security    
Goodwill [Roll Forward]    
Acquisitions $ 83