Document and Entity Information
3 Months Ended
Mar. 31, 2019
Document and Entity Information [Abstract]  
Entity Registrant Name HASBRO INC
Entity Central Index Key 0000046080
Current Fiscal Year End Date --12-29
Entity Current Reporting Status Yes
Entity Filer Category Large Accelerated Filer
Entity Common Stock, Shares Outstanding 125,854,116
Document Fiscal Year Focus 2019
Document Fiscal Period Focus Q1
Document Type 10-Q
Amendment Flag false
Document Period End Date Mar. 31, 2019
Trading Symbol HAS