Document And Entity Information	3 Months Ended
	Jun. 28, 2013	Jul. 26, 2013
Entity Information [Line Items]
Entity Registrant Name	COMPUTER SCIENCES CORP
Entity Central Index Key	0000023082
Current Fiscal Year End Date	--03-28
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 28, 2013
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		147,688,288