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Reconciliation of Assets from Segment to Consolidated (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 5,839	$ 6,383	$ 7,210
Corporate, Non-Segment
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	248	350
Franchise Group | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	4,430	4,730
Owned Brokerage Group | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	630	741
Title Group | Operating Segments
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 531	$ 562

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- 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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