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Intangible Assets (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
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Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount of total other intangibles |  | $ 535 | $ 534
Accumulated Amortization |  | 413 | 407
Net carrying amount of finite-lived and indefinite-lived intangible assets |  | 122 | 127
Indefinite life—Trademarks (b) |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount of indefinite-lived intangible assets | [1] | 586 | 586
Indefinite life—Title plant shares (e) |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount of indefinite-lived intangible assets | [2] | 29 | 28
Amortizable—Franchise agreements (a) |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount of finite-lived intangible assets | [3] | 2,010 | 2,010
Accumulated Amortization | [3] | 1,139 | 1,123
Net carrying amount of finite-lived intangible assets | [3] | 871 | 887
Amortizable—License agreements (c) |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount of finite-lived intangible assets | [4] | 45 | 45
Accumulated Amortization | [4] | 16 | 16
Net carrying amount of finite-lived intangible assets | [4] | $ 29 | 29
Amortization period |  | 50 years |
Amortizable—Customer relationships (d) |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount of finite-lived intangible assets | [5] | $ 454 | 454
Accumulated Amortization | [5] | 391 | 385
Net carrying amount of finite-lived intangible assets | [5] | 63 | 69
Amortizable—Other (f) |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount of finite-lived intangible assets | [6] | 7 | 7
Accumulated Amortization | [6] | 6 | 6
Net carrying amount of finite-lived intangible assets | [6] | $ 1 | $ 1
Minimum | Amortizable—Customer relationships (d) |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Amortization period |  | 10 years |
Minimum | Amortizable—Other (f) |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Amortization period |  | 3 years |
Maximum | Amortizable—Customer relationships (d) |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Amortization period |  | 20 years |
Maximum | Amortizable—Other (f) |  |  |
Finite-Lived and Indefinite-Lived Intangible Assets [Line Items] |  |  |
Amortization period |  | 5 years |
Franchise Group | Amortizable—Franchise agreements (a) |  |  |
Finite-Lived and Indefinite-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.
[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 which are being amortized over a period of 10 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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