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Reconciliation of Assets from Segment to Consolidated (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 6,383	$ 7,210	$ 6,934
Franchise Group
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	4,730	4,821
Owned Brokerage Group
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	741	1,021
Title Group
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	562	724
Corporate and Other
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 350	$ 644

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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