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Reconciliation of Assets from Segment to Consolidated (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 6,934	$ 7,543	$ 7,290
Realogy Franchise Group
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	4,896	5,273
Realogy Brokerage Group
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	932	1,448
Realogy Title Group
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	659	576
Corporate and Other
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 447	$ 246

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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