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Reconciliation of Assets from Segment to Consolidated (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 7,210	$ 6,934	$ 7,543
Realogy Franchise Group
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	4,821	4,896
Realogy Brokerage Group
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,021	932
Realogy Title Group
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	724	659
Corporate and Other
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 644	$ 447

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.

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