XML 22 R1.htm IDEA: XBRL DOCUMENT v3.19.1
Cover Page and DEI - shares
 3 Months Ended
Mar. 31, 2019
Apr. 30, 2019
Entity Information [Line Items]    
Document Period End Date Mar. 31, 2019  
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-Q  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Entity Emerging Growth Company false  
Entity Small Business false  
Entity Common Stock, Shares Outstanding   114,213,121
Realogy Group LLC [Member]    
Entity Information [Line Items]    
Entity Registrant Name REALOGY GROUP LLC  
Entity Central Index Key 0001355001  
Entity Filer Category Non-accelerated Filer  
Entity Emerging Growth Company false  
Entity Small Business false