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Consolidated Balance Sheets (Parenthetical) (USD $)
In Millions, except Share data, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Statement of Financial Position [Abstract]        
Allowance for doubtful accounts receivable $ 30us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 26us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 20us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 36us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Shareholders' (Deficit)        
Common stock, par value (in dollars per share) $ 0.001us-gaap_CommonStockParOrStatedValuePerShare $ 0.001us-gaap_CommonStockParOrStatedValuePerShare    
Common stock, shares authorized (in shares) 300,000,000us-gaap_CommonStockSharesAuthorized 300,000,000us-gaap_CommonStockSharesAuthorized    
Common stock, shares issued (in shares) 17,608,580us-gaap_CommonStockSharesIssued 17,601,520us-gaap_CommonStockSharesIssued    
Common stock, shares outstanding (in shares) 17,608,580us-gaap_CommonStockSharesOutstanding 17,601,520us-gaap_CommonStockSharesOutstanding