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Reconciliation of Capital Expenditures from Segment to Consolidated (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital expenditures $ 84 $ 71 $ 62
Real Estate Franchise Services      
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital expenditures 8 10 6
Company Owned Real Estate Brokerage Services      
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital expenditures 41 33 29
Relocation Services      
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital expenditures 14 9 6
Title and Settlement Services      
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital expenditures 8 8 11
Corporate and Other      
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital expenditures $ 13 $ 11 $ 10