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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Revenue Recognition) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2014
Dec. 31, 2013
Revenue Recognition [Line Items]      
Other Current Assets Capitalized Costs   $ 2.7cw_OtherCurrentAssetsCapitalizedCosts $ 1.8cw_OtherCurrentAssetsCapitalizedCosts
Changes In Contract Estimates Leading Decrease In Earnings From Continuing Operations   0cw_ChangesInContractEstimatesLeadingDecreaseInEarningsFromContinuingOperations 0cw_ChangesInContractEstimatesLeadingDecreaseInEarningsFromContinuingOperations
Technology Transfer Contract [Member]      
Revenue Recognition [Line Items]      
Changes In Contract Estimates Leading Increase In Earnings From Continuing Operations 14.2cw_ChangesInContractEstimatesLeadingIncreaseInEarningsFromContinuingOperations
/ us-gaap_DeferredRevenueArrangementTypeAxis
= cw_TechnologyTransferContractMember		    
AP1000 [Member]      
Revenue Recognition [Line Items]      
Changes In Contract Estimates Leading Decrease In Earnings From Continuing Operations $ 23.7cw_ChangesInContractEstimatesLeadingDecreaseInEarningsFromContinuingOperations
/ us-gaap_DeferredRevenueArrangementTypeAxis
= cw_Ap1000Member