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v3.21.1

Goodwill (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 USD ($) real_estate_brokerage_operations | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2008 USD ($) | Dec. 31, 2007 USD ($)
Goodwill [Roll Forward] |  |  |  |  |  |  |
Balance at December 31, 2020 |  | $ 2,910 |  |  |  |  |
Goodwill, Acquired During Period | [1] | 2 |  |  |  |  |
Goodwill, Written off Related to Sale of Business Unit | [2] | (3) |  |  |  |  |
Balance at March 31, 2021 |  | 2,909 |  | $ 2,910 |  |  |
Accumulated Impairment Losses | [3] | 2,579 |  |  |  |  |
Impairment Loss |  |  |  | 540 | $ 253 | $ 1,279 | $ 507
Realogy Franchise Group |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |
Balance at December 31, 2020 |  | 2,509 |  |  |  |  |
Goodwill, Acquired During Period | [1] | 0 |  |  |  |  |
Goodwill, Written off Related to Sale of Business Unit | [2] | (3) |  |  |  |  |
Balance at March 31, 2021 |  | 2,506 |  | 2,509 |  |  |
Accumulated Impairment Losses | [3] | 1,447 |  |  |  |  |
Realogy Brokerage Group |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |
Balance at December 31, 2020 |  | 245 |  |  |  |  |
Goodwill, Acquired During Period | [1] | 0 |  |  |  |  |
Goodwill, Written off Related to Sale of Business Unit | [2] | 0 |  |  |  |  |
Balance at March 31, 2021 |  | 245 |  | 245 |  |  |
Accumulated Impairment Losses | [3] | 808 |  |  |  |  |
Impairment Loss |  |  | $ 413 |  |  |  |
Realogy Title Group |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |
Balance at December 31, 2020 |  | 156 |  |  |  |  |
Goodwill, Acquired During Period | [1] | 2 |  |  |  |  |
Goodwill, Written off Related to Sale of Business Unit | [2] | 0 |  |  |  |  |
Balance at March 31, 2021 |  | 158 |  | $ 156 |  |  |
Accumulated Impairment Losses | [3] | $ 324 |  |  |  |  |
Number of Businesses Acquired | real_estate_brokerage_operations |  | 1 |  |  |  |  |
[1] | Goodwill acquired during the three months ended March 31, 2021 relates to the acquisition of one title and settlement operation.
[2] | Goodwill reduction during the three months ended March 31, 2021 relates to the sale of a relocation related business.
[3] | 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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