Summary of Significant Accounting Policies - Separation of CSRA (Details)		12 Months Ended
	Nov. 30, 2015 $ / shares	Apr. 01, 2016 Segment
Variable Interest Entity [Line Items]
Common Stock, dividends, (in usd per share)	$ 10.50
Number of reportable segments | Segment		2
Computer Sciences Corporation
Variable Interest Entity [Line Items]
Common Stock, dividends, (in usd per share)	2.25
CSRA
Variable Interest Entity [Line Items]
Common Stock, dividends, (in usd per share)	$ 8.25