Note 14. Commitments And Contingencies Litigation and Tax Matters (Details)	Dec. 31, 2016
Commitments and Contingencies - Litigation [Abstract]
Guaranty Arrangement Percentage of Obligations Assumed by Realogy	62.50%
Guaranty Arrangement Percentage of Obligations Assumed by Wyndham	37.50%

Percentage assumed by Wyndham of certain contingent and other corporate liabilities (and related costs and expenses) of Cendant or its subsidiaries, which are not primarily related to any of the respective businesses of Realogy, Wyndham Worldwide, Travelport and/or Cendant’s vehicle rental operations, in each case incurred or allegedly incurred on or prior to the date of the separation of Travelport from Cendant.

No definition available.

Name:	rlgy_GuarantyArrangementPercentageOfObligationsAssumedByWyndham
Namespace Prefix:	rlgy_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant