XML 40 R76.htm IDEA: XBRL DOCUMENT v2.4.1.9
Income Taxes Level 4 (Details) - Presentation of the Net Deferred Tax Liability (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Assets        
Current deferred income taxes (Other current assets) $ 11us-gaap_DeferredTaxAssetsNetCurrent $ 7us-gaap_DeferredTaxAssetsNetCurrent    
Long-term deferred income taxes 18us-gaap_DeferredTaxAssetsNetNoncurrent 21us-gaap_DeferredTaxAssetsNetNoncurrent    
Liabilities [Abstract]        
Long-term deferred income taxes (19)us-gaap_DeferredTaxLiabilitiesNoncurrent (21)us-gaap_DeferredTaxLiabilitiesNoncurrent    
Net deferred tax asset 10us-gaap_DeferredTaxLiabilities 7us-gaap_DeferredTaxLiabilities    
net operating loss carryforward reduction 27msc_Netoperatinglosscarryforwardreduction      
Valuation allowance 588us-gaap_DeferredTaxAssetsValuationAllowance 518us-gaap_DeferredTaxAssetsValuationAllowance 122us-gaap_DeferredTaxAssetsValuationAllowance 432us-gaap_DeferredTaxAssetsValuationAllowance
Deferred Tax Assets, Operating Loss Carryforwards, Domestic 999us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic      
Tax Credit Carryforward, Amount 2us-gaap_TaxCreditCarryforwardAmount      
Operating Loss Carryforwards, Valuation Allowance 154us-gaap_OperatingLossCarryforwardsValuationAllowance      
Undistributed Earnings of Foreign Subsidiaries $ 433us-gaap_UndistributedEarningsOfForeignSubsidiaries