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Basis Of Presentation Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2017 | Mar. 31, 2016
Income Tax Disclosure [Abstract] |  |  |  |
Income tax benefit | $ (9) | [1] | $ (24) | [2]
[1] | Includes restructuring charges of $5 million in the Company Owned Real Estate Brokerage Services segment and $4 million related to the loss on the early extinguishment of debt for the three months ended March 31, 2017.
[2] | Includes $9 million of restructuring charges as follows: $2 million in the Company Owned Real Estate Brokerage Services segment, $2 million in the Relocation Services segment and $5 million in Corporate and Other, and a net cost of $1 million of former parent legacy items for the three months ended March 31, 2016.

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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32639-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 + Details
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