Document and Entity Information (USD $)
6 Months Ended
Jul. 31, 2010
Aug. 31, 2010
Jul. 31, 2009
Document and Entity Information [Abstract]      
Entity Registrant Name TIFFANY & CO    
Entity Central Index Key 0000098246    
Document Type 10-Q    
Document Period End Date Jul. 31, 2010    
Amendment Flag false    
Document Fiscal Year Focus 2011    
Document Fiscal Period Focus Q2    
Current Fiscal Year End Date --01-31    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Large Accelerated Filer    
Entity Public Float     $ 3,434,427,681
Entity Common Stock, Shares Outstanding   126,266,981