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Subsequent Events (Details) (USD $)
In Billions, except Per Share data, unless otherwise specified
 12 Months Ended 0 Months Ended
Mar. 28, 2014
Mar. 29, 2013
Mar. 30, 2012
May 08, 2014
Subsequent Event [Line Items]        
Cash dividend per common share (in dollars per share) $ 0.8us-gaap_CommonStockDividendsPerShareDeclared $ 0.8us-gaap_CommonStockDividendsPerShareDeclared $ 0.8us-gaap_CommonStockDividendsPerShareDeclared  
Subsequent Event [Member]        
Subsequent Event [Line Items]        
Dividend Rate Increase       15.00%csc_CommonStockDividendRatePeriodIncreaseDecreasePercent
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Cash dividend per common share (in dollars per share)       $ 0.23us-gaap_CommonStockDividendsPerShareDeclared
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
Share Repurchase Program, Authorized Amount       $ 1.5us-gaap_StockRepurchaseProgramAuthorizedAmount1
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember