Reconciliation of Depreciation and Amortization from Segments to Consolidated (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017		Dec. 31, 2016
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization	$ 195	$ 198	[1]	$ 202	[2]
Real Estate Franchise Services
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization	77	79		77
Company Owned Real Estate Brokerage Services
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization	51	50		49
Relocation Services
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization	33	33		31
Title and Settlement Services
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization	13	16		23
Corporate and Other
Segment Reporting, Other Significant Reconciling Item [Line Items]
Depreciation and amortization	$ 21	$ 20		$ 22

[1] Includes $22 million and $8 million of equity earnings from PHH Home Loans for the years ended December 31, 2017 and 2016, respectively.

[2] Depreciation and amortization for the years ended December 31, 2018 and 2017 includes $2 million and $3 million, respectively, of amortization expense related to Guaranteed Rate Affinity's purchase accounting included in the "Equity in losses (earnings) of unconsolidated entities" line on the Consolidated Statement of Operations.