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Basis Of Presentation Revenue Recognition - Deferred Revenue (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Jan. 01, 2021
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |
Deferred Revenue |  | $ 83 | $ 82
Deferred Revenue, Additions |  | 44 |
Deferred Revenue, Revenue Recognized |  | (43) |
Realogy Franchise Group |  |  |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |
Deferred Revenue |  | 70 | 70
Deferred Revenue, Additions |  | 42 |
Deferred Revenue, Revenue Recognized |  | (42) |
Realogy Brokerage Group |  |  |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |
Deferred Revenue |  | 13 | 12
Deferred Revenue, Additions |  | 2 |
Deferred Revenue, Revenue Recognized |  | $ (1) |
Minimum | Realogy Franchise Group |  |  |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |
Outsourcing Management Fees Period |  | 3 months |
Minimum | Realogy Brokerage Group |  |  |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |
New Development Period |  | 18 months |
Maximum | Realogy Franchise Group |  |  |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |
Outsourcing Management Fees Period |  | 6 months |
Maximum | Realogy Brokerage Group |  |  |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |
New Development Period |  | 24 months |
International Franchise Rights | Realogy Franchise Group |  |  |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |
Finite-Lived Intangible Asset, Useful Life |  | 25 years |
Area Development Fees | Realogy Franchise Group |  |  |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |
Deferred Revenue | [1] | $ 41 | 43
Deferred Revenue, Additions | [1] | 1 |
Deferred Revenue, Revenue Recognized | [1] | (3) |
Brand Marketing Fees | Realogy Franchise Group |  |  |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |
Deferred Revenue | [2] | 15 | 14
Deferred Revenue, Additions | [2] | 24 |
Deferred Revenue, Revenue Recognized | [2] | (23) |
Outsourcing Management Fees | Realogy Franchise Group |  |  |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |
Deferred Revenue | [3] | 3 | 3
Deferred Revenue, Additions | [3] | 8 |
Deferred Revenue, Revenue Recognized | [3] | (8) |
Deferred Income, Other | Realogy Franchise Group |  |  |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |
Deferred Revenue |  | 11 | 10
Deferred Revenue, Additions |  | 9 |
Deferred Revenue, Revenue Recognized |  | (8) |
Deferred Income, Other | Realogy Brokerage Group |  |  |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |
Deferred Revenue |  | 4 | 3
Deferred Revenue, Additions |  | 2 |
Deferred Revenue, Revenue Recognized |  | (1) |
New Development Business | Realogy Brokerage Group |  |  |
Revenue Recognition, Multiple-deliverable Arrangements [Line Items] |  |  |
Deferred Revenue | [4] | 9 | $ 9
Deferred Revenue, Additions | [4] | 0 |
Deferred Revenue, Revenue Recognized | [4] | $ 0 |
[1] | The Company collects initial area development fees ("ADF") for international territory transactions, which are recorded as deferred revenue when received and recognized into franchise revenue over the average 25 year life of the related franchise agreement as consideration for the right to access and benefit from Realogy’s brands. In the event an ADF agreement is terminated prior to the end of its term, the unamortized deferred revenue balance will be recognized into revenue immediately upon termination.
[2] | Revenues recognized include intercompany marketing fees paid by Realogy Brokerage Group.
[3] | The Company earns revenues from outsourcing management fees charged to clients that may cover several of the relocation services listed above, according to the clients' specific needs. Outsourcing management fees are recorded as deferred revenue when billed (usually at the start of the relocation) and are recognized as revenue over the average time period required to complete the transferee's move, or a phase of the move that the fee covers, which is typically 3 to 6 months depending on the move type.
[4] | New development closings generally have a development period of between 18 and 24 months from contracted date to closing.

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- Definition Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(5)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References No definition available. + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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