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Goodwill (Details) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2022 USD ($) | Dec. 31, 2020 USD ($) | Mar. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Dec. 31, 2022 USD ($) real_estate_brokerage_operations | Dec. 31, 2021 USD ($) real_estate_brokerage_operations | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2008 USD ($) | Dec. 31, 2007 USD ($)
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill Balance, beginning of period |  |  |  | $ 3,460 | $ 3,460 | $ 2,923 |  | $ 2,910 |  | $ 3,460 |  |  |  |
Goodwill acquired |  |  |  |  |  | 26 | [1] | 26 | [2] | 1 |  |  |  |
Goodwill, Impairment Loss |  |  |  |  |  | (394) | [3] |  |  | (540) | [4] | $ (253) | $ (1,279) | $ (507)
Goodwill, Written off Related to Sale of Business Unit |  |  |  |  |  | (32) | [5] | (13) | [6] | (11) |  |  |  |
Goodwill Balance, end of period |  | $ 2,523 | $ 2,910 |  |  | 2,523 |  | 2,923 |  | 2,910 |  | 3,460 |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross goodwill |  | 5,496 |  |  |  | 5,496 |  |  |  |  |  |  |  |
Accumulated impairments (g) | [7] | (2,973) |  |  |  | (2,973) |  |  |  |  |  |  |  |
Balance at December 31, 2022 |  | 2,523 | 2,910 |  |  | 2,523 |  | 2,923 |  | 2,910 |  | 3,460 |  |
Goodwill, Impairment Loss |  |  |  |  |  | (394) | [3] |  |  | (540) | [4] | (253) | $ (1,279) | $ (507)
Franchise Group |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill Balance, beginning of period |  |  |  | $ 2,636 | 2,636 | 2,506 |  | 2,509 |  | 2,636 |  |  |  |
Goodwill acquired |  |  |  |  |  | 0 | [1] | 0 | [2] | 0 |  |  |  |
Goodwill, Impairment Loss |  | (114) | (22) |  | (105) | (114) | [3] |  |  | (127) | [4] |  |  |
Goodwill, Written off Related to Sale of Business Unit |  |  |  |  |  | 0 | [5] | (3) | [6] | 0 |  |  |  |
Goodwill Balance, end of period |  | 2,392 | 2,509 |  |  | 2,392 |  | 2,506 |  | 2,509 |  | 2,636 |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross goodwill |  | 3,953 |  |  |  | 3,953 |  |  |  |  |  |  |  |
Accumulated impairments (g) | [7] | (1,561) |  |  |  | (1,561) |  |  |  |  |  |  |  |
Balance at December 31, 2022 |  | 2,392 | 2,509 |  |  | 2,392 |  | 2,506 |  | 2,509 |  | 2,636 |  |
Goodwill, Impairment Loss |  | $ (114) | $ (22) |  | (105) | (114) | [3] |  |  | (127) | [4] |  |  |
Franchise Group | Indefinite life—Trademarks |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration] |  | Costs and Expenses | Costs and Expenses | Costs and Expenses |  |  |  |  |  |  |  |  |  |
Owned Brokerage Group |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill Balance, beginning of period |  |  |  | $ 669 | 669 | 259 |  | 245 |  | 669 |  |  |  |
Goodwill acquired |  |  |  |  |  | 21 | [1] | 24 | [2] | 0 |  |  |  |
Goodwill, Impairment Loss |  | $ (280) |  | (413) |  | (280) | [3] |  |  | (413) | [4] |  |  |
Goodwill, Written off Related to Sale of Business Unit |  |  |  |  |  | 0 | [5] | (10) | [6] | (11) |  |  |  |
Goodwill Balance, end of period |  | 0 | $ 245 |  |  | 0 |  | 259 |  | 245 |  | 669 |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross goodwill |  | 1,088 |  |  |  | 1,088 |  |  |  |  |  |  |  |
Accumulated impairments (g) | [7] | (1,088) |  |  |  | (1,088) |  |  |  |  |  |  |  |
Balance at December 31, 2022 |  | 0 | 245 |  |  | 0 |  | $ 259 |  | 245 |  | 669 |  |
Goodwill, Impairment Loss |  | (280) |  | (413) |  | $ (280) | [3] |  |  | (413) | [4] |  |  |
Number of Businesses Acquired | real_estate_brokerage_operations |  |  |  |  |  | 4 |  | 3,000,000 |  |  |  |  |  |
Title Group |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill Balance, beginning of period |  |  |  | $ 155 | $ 155 | $ 158 |  | $ 156 |  | 155 |  |  |  |
Goodwill acquired |  |  |  |  |  | 5 | [1] | 2 | [2] | 1 |  |  |  |
Goodwill, Impairment Loss |  |  |  |  |  | 0 | [3] |  |  | 0 | [4] |  |  |
Goodwill, Written off Related to Sale of Business Unit |  |  |  |  |  | (32) | [5] | 0 | [6] | 0 |  |  |  |
Goodwill Balance, end of period |  | 131 | 156 |  |  | 131 |  | 158 |  | 156 |  | 155 |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross goodwill |  | 455 |  |  |  | 455 |  |  |  |  |  |  |  |
Accumulated impairments (g) | [7] | (324) |  |  |  | (324) |  |  |  |  |  |  |  |
Balance at December 31, 2022 |  | $ 131 | $ 156 |  |  | 131 |  | $ 158 |  | 156 |  | $ 155 |  |
Goodwill, Impairment Loss |  |  |  |  |  | $ 0 | [3] |  |  | $ 0 | [4] |  |  |
Number of Businesses Acquired | real_estate_brokerage_operations |  |  |  |  |  | 2 |  | 1,000,000 |  |  |  |  |  |
[1] | Goodwill acquired during the year ended December 31, 2022 relates to the acquisition of four real estate brokerage operations and two title and settlement operations.
[2] | Goodwill acquired during the year ended December 31, 2021 relates to the acquisition of three real estate brokerage operations and one title and settlement operation.
[3] | During the year ended December 31, 2022, the Company recognized a goodwill impairment charge of $280 million related to Owned Brokerage Group reporting unit and a goodwill impairment charge of $114 million related to the Cartus/Leads Group reporting unit which is reported within the Franchise Group reportable segment.
[4] | During the year ended December 31, 2020, the Company recognized a goodwill impairment charges of $413 million related to Owned Brokerage Group and $127 million at Franchise Group which related to $105 million during the nine months ended September 30, 2020 (while Cartus was held for sale) to reduce the net assets to the estimated proceeds and an additional goodwill impairment charge of $22 million during the fourth quarter of 2020 related to Cartus.
[5] | Goodwill reduction during the year ended December 31, 2022 relates to the sale of the Title Underwriter during the first quarter of 2022 (see Note 1, "Basis of Presentation", for a description of the transaction).
[6] | Goodwill reduction during the year ended December 31, 2021 relates to the sale of a relocation-related business during the first quarter of 2021 and the sale of a business at Owned Brokerage Group during the second quarter of 2021.
[7] | Includes impairment charges which reduced goodwill by $394 million during 2022, $540 million during 2020, $253 million during 2019, $1,279 million during 2008 and $507 million during 2007.

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