XML 37 R1.htm IDEA: XBRL DOCUMENT v3.8.0.1
Document and Entity Information Document and Entity Information - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2017
Feb. 23, 2018
Document Information [Line Items]    
Document Period End Date Dec. 31, 2017  
Entity Registrant Name REALOGY HOLDINGS CORP.  
Entity Central Index Key 0001398987  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Document Type 10-K  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus FY  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   130,150,797
Entity Well-known Seasoned Issuer Yes  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Public Float $ 4.4  
Realogy [Member]    
Document Information [Line Items]    
Entity Registrant Name REALOGY GROUP LLC  
Entity Central Index Key 0001355001  
Entity Filer Category Non-accelerated Filer  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers Yes  
Entity Current Reporting Status No