XML 137 R95.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Interest Rate, Credit, and Market Risk Exposures (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Principal value of variable rate long term debt | $ 2,075 |  |
Securitization obligations | $ 231 | $ 194 |
Company Owned Real Estate Brokerage Services | California |  |  |
Concentration risk, geographic area, revenue | 27.00% | 27.00% | 26.00%
Company Owned Real Estate Brokerage Services | New York |  |  |
Concentration risk, geographic area, revenue | 20.00% | 22.00% | 22.00%
Company Owned Real Estate Brokerage Services | Florida |  |  |
Concentration risk, geographic area, revenue | 9.00% | 9.00% | 9.00%
Minimum |  |  |
Fixed interest rate of swaps | 2.07% |  |
Maximum |  |  |
Fixed interest rate of swaps | 3.11% |  |
Interest rate swap contracts |  |  |
Notional value of derivative instrument | $ 1,600 |  |

X
- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
Name: | invest_DerivativeNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Description of risks that arise due to concentrations of revenues in a certain geographic area, either domestic or foreign. The description may address risks inherent in the geographic area, and, at a minimum, informs users of the general nature of the risk, but excludes "Information about Geographic Areas" that may be disclosed elsewhere (for instance, segment disclosures). + References No definition available. + Details
Name: | rlgy_ConcentrationRiskGeographicAreaRevenue
Namespace Prefix: | rlgy_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The principal value of variable interest rate long-term debt. + References No definition available. + Details
Name: | rlgy_DebtInstrumentPrincipalVariableRate
Namespace Prefix: | rlgy_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
Name: | us-gaap_DerivativeFixedInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Secured financing other than securities sold under agreements to repurchase and securities loaned. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 15 -Paragraph 83 -URI http://asc.fasb.org/extlink&oid=109257184&loc=d3e34841-113949 + Details
Name: | us-gaap_OtherSecuredFinancings
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=rlgy_CompanyOwnedRealEstateBrokerageServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=rlgy_CaliforniaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=rlgy_NewYorkMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ConcentrationRiskByTypeAxis=rlgy_FloridaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |