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Note 4. Intangible Assets Goodwill (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2008 | Dec. 31, 2007 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2015
Goodwill [Roll Forward] |  |  |  |  |  |  |
Goodwill Balance, beginning of period |  |  |  | $ 3,477 | $ 3,335 | $ 3,304 |
Goodwill acquired |  |  |  | 141 | 142 | 31 |
Goodwill Balance, end of period |  |  |  | 3,618 | 3,477 | 3,335 |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |
Gross goodwill |  |  |  |  |  |  | $ 5,404
Accumulated impairment losses (a) | [1] |  |  |  |  |  | (1,786)
Balance at December 31, 2015 |  |  |  | 3,477 | 3,335 | 3,304 | 3,618
Goodwill and Intangible Asset Impairment [Abstract] |  |  |  |  |  |  |
Goodwill and Intangible Asset Impairment |  | $ 1,557 | $ 637 |  |  |  |
Impairment of Intangible Assets (Excluding Goodwill) |  | 278 | 130 |  |  |  |
Impairment of Goodwill |  | $ 1,279 | $ 507 |  |  |  |
Real Estate Franchise Services |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |
Goodwill Balance, beginning of period |  |  |  | 2,292 | 2,241 | 2,241 |
Goodwill acquired |  |  |  | 0 | 51 | 0 |
Goodwill Balance, end of period |  |  |  | 2,292 | 2,292 | 2,241 |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |
Gross goodwill |  |  |  |  |  |  | 3,315
Accumulated impairment losses (a) | [1] |  |  |  |  |  | (1,023)
Balance at December 31, 2015 |  |  |  | 2,292 | 2,241 | 2,241 | 2,292
Company Owned Real Estate Brokerage Services |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |
Goodwill Balance, beginning of period |  |  |  | 747 | 661 | 630 |
Goodwill acquired |  |  |  | 94 | 86 | 31 |
Goodwill Balance, end of period |  |  |  | 841 | 747 | 661 |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |
Gross goodwill |  |  |  |  |  |  | 999
Accumulated impairment losses (a) | [1] |  |  |  |  |  | (158)
Balance at December 31, 2015 |  |  |  | 747 | 661 | 630 | 841
Relocation Services |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |
Goodwill Balance, beginning of period |  |  |  | 360 | 360 | 360 |
Goodwill acquired |  |  |  | 0 | 0 | 0 |
Goodwill Balance, end of period |  |  |  | 360 | 360 | 360 |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |
Gross goodwill |  |  |  |  |  |  | 641
Accumulated impairment losses (a) | [1] |  |  |  |  |  | (281)
Balance at December 31, 2015 |  |  |  | 360 | 360 | 360 | 360
Title and Settlement Services |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |
Goodwill Balance, beginning of period |  |  |  | 78 | 73 | 73 |
Goodwill acquired |  |  |  | 47 | 5 | 0 |
Goodwill Balance, end of period |  |  |  | 125 | 78 | 73 |
Goodwill, Impaired, Accumulated Impairment Loss [Abstract] |  |  |  |  |  |  |
Gross goodwill |  |  |  |  |  |  | 449
Accumulated impairment losses (a) | [1] |  |  |  |  |  | (324)
Balance at December 31, 2015 |  |  |  | $ 78 | $ 73 | $ 73 | $ 125
[1] | During the fourth quarter of 2008, the Company recorded an impairment charge of $1,557 million, which reduced intangible assets by $278 million and reduced goodwill by $1,279 million. During the fourth quarter of 2007, the Company recorded an impairment charge of $637 million, which reduced intangible assets by $130 million and reduced goodwill by $507 million.

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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