XML 18 R1.htm IDEA: XBRL DOCUMENT v3.5.0.2
Document and Entity Information - shares
9 Months Ended
Sep. 30, 2016
Oct. 28, 2016
Entity Information    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2016  
Document Fiscal Year Focus 2016  
Document Fiscal Period Focus Q3  
Trading Symbol FB  
Entity Registrant Name FACEBOOK INC  
Entity Central Index Key 0001326801  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Class A Common Stock    
Entity Information    
Entity Common Stock, Shares Outstanding   2,340,824,544
Class B Common Stock    
Entity Information    
Entity Common Stock, Shares Outstanding   541,342,934