DOCUMENT AND ENTITY INFORMATION DOCUMENT Document and Entity Information Document (USD $)
In Billions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Feb. 13, 2014
Jun. 30, 2013
Document Information [Line Items]      
Document Period End Date Dec. 31, 2013    
Document Fiscal Year Focus 2013    
Entity Filer Category Large Accelerated Filer    
Document Type 10-K    
Document Fiscal Period Focus FY    
Entity Registrant Name PRICELINE COM INC    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   52,142,345  
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Central Index Key 0001075531    
Current Fiscal Year End Date --12-31    
Entity Public Float     $ 42.3