XML 58 R1.htm IDEA: XBRL DOCUMENT v3.10.0.1
Document and Entity Information - USD ($)
$ / shares in Units, $ in Billions
 12 Months Ended
Feb. 20, 2019
Dec. 31, 2018
Jun. 29, 2018
Document and Entity Information [Abstract]      
Document Type   10-K  
Entity Registrant Name   HARTFORD FINANCIAL SERVICES GROUP INC/DE  
Entity Public Float     $ 18
Entity Common Stock, Shares Outstanding 359,470,401    
Entity Listing, Par Value Per Share $ 0.01    
Entity Central Index Key   0000874766  
Current Fiscal Year End Date   --12-31  
Entity Filer Category   Large Accelerated Filer  
Entity Shell Company   false  
Entity Emerging Growth Company   false  
Entity Small Business   false  
Document Period End Date   Dec. 31, 2018  
Document Fiscal Year Focus   2018  
Document Fiscal Period Focus   Q4  
Amendment Flag   false  
Entity Well-known Seasoned Issuer   Yes  
Entity Voluntary Filers   No  
Entity Current Reporting Status   Yes