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Basis Of Presentation Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Income Tax Disclosure [Abstract]    
Income tax benefit $ (24) [1] $ (24)
[1] 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 included in Corporate and Other for the three months ended March 31, 2016.