Reconciliation of Depreciation and Amortization from Segments 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]
Depreciation and amortization	$ 201	$ 190	$ 176
Real Estate Franchise Services
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization	77	75	75
Company Owned Real Estate Brokerage Services
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization	46	42	35
Relocation Services
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization	33	43	44
Title and Settlement Services
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization	25	15	11
Corporate and Other
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization	$ 20	$ 15	$ 11