v2.4.0.6
Document and Entity Information Document (USD $)
In Billions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Feb. 17, 2012
Jun. 30, 2011
Document Information [Line Items]      
Entity Public Float     $ 25.2
Document Period End Date Dec. 31, 2011    
Document Fiscal Year Focus 2011    
Entity Filer Category Large Accelerated Filer    
Document Type 10-K    
Document Fiscal Period Focus FY    
Entity Registrant Name PRICELINE COM INC    
Entity Well-known Seasoned Issuer Yes    
Entity Central Index Key 0001075531    
Current Fiscal Year End Date --12-31    
Amendment Flag false    
Entity Common Stock, Shares Outstanding   49,798,861  
Entity Voluntary Filers No    
Entity Current Reporting Status Yes