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Note 4. Intangible Assets Intangible Assets (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount of indefinite-lived intangible assets |  | $ 767 |
Gross carrying amount of total other intangibles |  | 647 | $ 652
Accumulated Amortization |  | 363 | 339
Net carrying amount of finite-lived and indefinite-lived intangible assets |  | 284 | 313
Indefinite life—Trademarks (b) |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount of indefinite-lived intangible assets | [1] | 749 | 748
Indefinite life—Title plant shares (e) |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Gross carrying amount of indefinite-lived intangible assets | [2] | 18 | 18
Amortizable—Franchise agreements (a) |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | [3] | 2,019 | 2,019
Accumulated Amortization | [3] | 725 | 658
Net carrying amount of finite-lived intangible assets | [3] | $ 1,294 | 1,361
Amortization period |  | 30 years |
Amortizable—License agreements (c) |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | [4] | $ 45 | 45
Accumulated Amortization | [4] | 10 | 9
Net carrying amount of finite-lived intangible assets | [4] | $ 35 | 36
Amortization period |  | 50 years |
Amortizable—Customer relationships (d) |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | [5] | $ 549 | 550
Accumulated Amortization | [5] | 335 | 312
Net carrying amount of finite-lived intangible assets | [5] | 214 | 238
Amortizable—Pendings and listings (f) |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | [6] | 2 | 6
Accumulated Amortization | [6] | 1 | 5
Net carrying amount of finite-lived intangible assets | [6] | $ 1 | 1
Amortization period |  | 5 months |
Amortizable—Other (g) |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-Lived Intangible Assets, Gross | [7] | $ 33 | 33
Accumulated Amortization | [7] | 17 | 13
Net carrying amount of finite-lived intangible assets | [7] | $ 16 | $ 20
Maximum | Amortizable—Customer relationships (d) |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Amortization period |  | 20 years |
Maximum | Amortizable—Other (g) |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Amortization period |  | 10 years |
Minimum | Amortizable—Customer relationships (d) |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Amortization period |  | 2 years |
Minimum | Amortizable—Other (g) |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Amortization period |  | 5 years |
[1] | Primarily relates to the Century 21®, Coldwell Banker®, ERA®, Corcoran®, Coldwell Banker Commercial® and Cartus tradenames, 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 at the Relocation Services segment, the Title and Settlement Services segment, the Real Estate Franchise Services segment and our Company Owned Real Estate Brokerage Services segment. These relationships are being amortized over a period of 2 to 20 years.
[6] | Generally amortized over a period of 5 months.
[7] | Consists of covenants not to compete which are amortized over their contract lives and other intangibles which are generally amortized over periods ranging from 5 to 10 years.

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