Document and Entity Information
3 Months Ended
Apr. 30, 2019
Document Document And Entity Information [Abstract]  
Document Type 10-Q
Amendment Flag false
Document Period End Date Apr. 30, 2019
Document Fiscal Year Focus 2019
Document Fiscal Period Focus Q1
Trading Symbol TIF
Entity Registrant Name TIFFANY & CO
Entity Central Index Key 0000098246
Current Fiscal Year End Date --01-31
Entity Filer Category Large Accelerated Filer
Entity Emerging Growth Company false
Entity Small Business false
Entity Common Stock, Shares Outstanding 121,407,389