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Goodwill (Details) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | 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 | $ 2,910 |  | $ 3,460 |  | $ 3,712 |  |  |
Goodwill acquired |  |  |  | 26 | [1] | 1 |  | 1 |  |  |
Goodwill, Impairment Loss |  |  |  |  |  | (540) | [2] | (253) | [3] | $ (1,279) | $ (507)
Goodwill reduction for sale of business (d) |  |  |  | (13) | [4] | (11) |  |  |  |  |
Goodwill Balance, end of period |  | $ 2,910 |  | 2,923 |  | 2,910 |  | 3,460 |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |
Gross goodwill |  |  |  | 5,502 |  |  |  |  |  |  |
Accumulated impairments (e) | [5] |  |  | (2,579) |  |  |  |  |  |  |
Balance at December 31, 2021 |  | 2,910 |  | 2,923 |  | 2,910 |  | 3,460 |  |  |
Impairment of Goodwill |  |  |  |  |  | 540 | [2] | 253 | [3] | $ 1,279 | $ 507
Realogy Franchise Group |  |  |  |  |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Goodwill Balance, beginning of period |  |  | 2,636 | 2,509 |  | 2,636 |  | 2,652 |  |  |
Goodwill acquired |  |  |  | 0 | [1] | 0 |  | 0 |  |  |
Goodwill, Impairment Loss |  | (22) | (105) |  |  | (127) | [2] | (16) | [3] |  |
Goodwill reduction for sale of business (d) |  |  |  | (3) | [4] | 0 |  |  |  |  |
Goodwill Balance, end of period |  | 2,509 |  | 2,506 |  | 2,509 |  | 2,636 |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |
Gross goodwill |  |  |  | 3,953 |  |  |  |  |  |  |
Accumulated impairments (e) | [5] |  |  | (1,447) |  |  |  |  |  |  |
Balance at December 31, 2021 |  | 2,509 |  | 2,506 |  | 2,509 |  | 2,636 |  |  |
Impairment of Goodwill |  | 22 | 105 |  |  | 127 | [2] | 16 | [3] |  |
Realogy Brokerage Group |  |  |  |  |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Goodwill Balance, beginning of period |  |  | 669 | 245 |  | 669 |  | 906 |  |  |
Goodwill acquired |  |  |  | 24 | [1] | 0 |  | 0 |  |  |
Goodwill, Impairment Loss |  |  |  |  |  | (413) | [2] | (237) | [3] |  |
Goodwill reduction for sale of business (d) |  |  |  | (10) | [4] | (11) |  |  |  |  |
Goodwill Balance, end of period |  | 245 |  | 259 |  | 245 |  | 669 |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |
Gross goodwill |  |  |  | 1,067 |  |  |  |  |  |  |
Accumulated impairments (e) | [5] |  |  | (808) |  |  |  |  |  |  |
Balance at December 31, 2021 |  | 245 |  | $ 259 |  | 245 |  | 669 |  |  |
Impairment of Goodwill |  |  |  |  |  | 413 | [2] | 237 | [3] |  |
Number of Businesses Acquired | real_estate_brokerage_operations |  |  |  | 3 |  |  |  |  |  |  |
Realogy Title Group |  |  |  |  |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Goodwill Balance, beginning of period |  |  | $ 155 | $ 156 |  | 155 |  | 154 |  |  |
Goodwill acquired |  |  |  | 2 | [1] | 1 |  | 1 |  |  |
Goodwill, Impairment Loss |  |  |  |  |  | 0 | [2] | 0 | [3] |  |
Goodwill reduction for sale of business (d) |  |  |  | 0 | [4] | 0 |  |  |  |  |
Goodwill Balance, end of period |  | 156 |  | 158 |  | 156 |  | 155 |  |  |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |  |  |  |  |
Gross goodwill |  |  |  | 482 |  |  |  |  |  |  |
Accumulated impairments (e) | [5] |  |  | (324) |  |  |  |  |  |  |
Balance at December 31, 2021 |  | $ 156 |  | $ 158 |  | 156 |  | 155 |  |  |
Impairment of Goodwill |  |  |  |  |  | $ 0 | [2] | $ 0 | [3] |  |
Number of Businesses Acquired | real_estate_brokerage_operations |  |  |  | 1 |  |  |  |  |  |  |
[1] | Goodwill acquired during the year ended December 31, 2021 relates to the acquisition of three real estate brokerage operations and one title and settlement operations.
[2] | During the year ended December 31, 2020, the Company recognized a goodwill impairment charges of $413 million related to Realogy Brokerage Group and $127 million at Realogy Franchise Group which related to $105 million during the nine months ended September 30, 2020 (while Cartus Relocation Services 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 Relocation Services.
[3] | During the year ended December 31, 2019, the Company recognized goodwill impairment charges of $237 million related to Realogy Brokerage Group and $16 million at Realogy Franchise Group which related to the reduction to record net assets held for sale at the lower of carrying value or fair value, less costs to sell, for Cartus Relocation Services which was presented as held for sale at December 31, 2019.
[4] | 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 Realogy Brokerage Group during the second quarter of 2021.
[5] | Includes impairment charges which reduced goodwill by $540 million during 2020, $253 million during 2019, $1,279 million during 2008 and $507 million during 2007.

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