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Intangible Assets (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2022 | Dec. 31, 2020 | Mar. 31, 2020 | Dec. 31, 2022 | Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Gross carrying amount of indefinite-lived intangible assets |  | $ 639 |  |  | $ 639 |
Gross carrying amount of total other intangibles |  | 540 |  |  | 540 | $ 542
Accumulated Amortization |  | 390 |  |  | 390 | 371
Net carrying amount of finite-lived and indefinite-lived intangible assets |  | 150 |  |  | 150 | 171
Indefinite life—Trademarks |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Gross carrying amount of indefinite-lived intangible assets | [1] | 611 |  |  | 611 | 687
Indefinite life—Title plant shares |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Gross carrying amount of indefinite-lived intangible assets | [2] | 28 |  |  | 28 | 25
Amortizable—Franchise agreements |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Assets, Gross | [3] | 2,010 |  |  | 2,010 | 2,010
Accumulated Amortization | [3] | 1,056 |  |  | 1,056 | 989
Net carrying amount of finite-lived intangible assets | [3] | 954 |  |  | 954 | 1,021
Amortizable—License agreements |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Assets, Gross | [4] | 45 |  |  | 45 | 45
Accumulated Amortization | [4] | 15 |  |  | 15 | 14
Net carrying amount of finite-lived intangible assets | [4] | 30 |  |  | $ 30 | 31
Amortization period |  |  |  |  | 50 years |
Amortizable—Customer relationships |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Assets, Gross | [5] | 456 |  |  | $ 456 | 456
Accumulated Amortization | [5] | 366 |  |  | 366 | 345
Net carrying amount of finite-lived intangible assets | [5] | 90 |  |  | 90 | 111
Amortizable—Other |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Finite-Lived Intangible Assets, Gross | [6] | 11 |  |  | 11 | 16
Accumulated Amortization | [6] | 9 |  |  | 9 | 12
Net carrying amount of finite-lived intangible assets | [6] | $ 2 |  |  | $ 2 | $ 4
Minimum | Amortizable—Customer relationships |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Amortization period |  |  |  |  | 7 years |
Minimum | Amortizable—Other |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Amortization period |  |  |  |  | 3 years |
Maximum | Amortizable—Customer relationships |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Amortization period |  |  |  |  | 20 years |
Maximum | Amortizable—Other |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Amortization period |  |  |  |  | 5 years |
Franchise Group | Indefinite life—Trademarks |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Impairment, Intangible Asset, Indefinite-Lived (Excluding Goodwill), Statement of Income or Comprehensive Income [Extensible Enumeration] |  | Costs and Expenses | Costs and Expenses | Costs and Expenses |  |
Franchise Group | Amortizable—Franchise agreements |  |  |  |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |  |  |  |
Amortization period |  |  |  |  | 30 years |
[1] | Primarily related to real estate franchise, title and relocation trademarks which are expected to generate future cash flows for an indefinite period of time. Franchise trademarks were impaired by $76 million during the fourth quarter of 2022.
[2] | Ownership in a title plant is required to transact title insurance in certain states. The Company expects to generate future cash flows for an indefinite period of time.
[3] | Generally amortized over a period of 30 years.
[4] | Relates to the Sotheby’s International Realty® and Better Homes and Gardens® Real Estate agreements which are being amortized over 50 years (the contractual term of the license agreements).
[5] | Relates to the customer relationships at Franchise Group, Title Group and Owned Brokerage Group. These relationships are being amortized over a period of 7 to 20 years.
[6] | Consists of covenants not to compete which are amortized over their contract lives and other intangibles which are generally amortized over periods ranging from 3 to 5 years.

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