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Reconciliation of Capital Expenditures from Segment to Consolidated (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital expenditures	$ 99	$ 87	$ 84
Real Estate Franchise Services
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital expenditures	9	8	8
Company Owned Real Estate Brokerage Services
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital expenditures	44	44	41
Relocation Services
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital expenditures	11	12	14
Title and Settlement Services
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital expenditures	13	9	8
Corporate and Other
Segment Reporting, Other Significant Reconciling Item [Line Items]
Capital expenditures	$ 22	$ 14	$ 13

X

- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585

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- Definition

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+ References

No definition available.

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