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Reconciliation of Capital Expenditures from Segment to Consolidated (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Capital Expenditures | $ 22 | $ 18 | $ 43 | $ 36
Segment Reporting, Reconciling Item, Corporate Non-Segment |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Capital Expenditures | 4 | 5 | 9 | 9
Franchise Group | Operating Segments |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Capital Expenditures | 9 | 7 | 17 | 13
Owned Brokerage Group | Operating Segments |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Capital Expenditures | 7 | 5 | 13 | 11
Title Group | Operating Segments |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Capital Expenditures | 2 | 1 | 4 | 3
Reportable Segment, Aggregation before Other Operating Segment | Operating Segments |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |
Capital Expenditures | $ 18 | $ 13 | $ 34 | $ 27

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