CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (unaudited) (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Dec. 30, 2011	Dec. 31, 2010	Dec. 30, 2011	Dec. 31, 2010
Settlement charge charged to revenue and excluded from Cost of services	$ 0	$ 0	$ 42	$ 0
Specified contract charge charged to revenue and excluded from Cost of services	$ 204	$ 0	$ 204	$ 0

Pre-tax charge to write down claim related assets to reflect the specified contract charges charged to revenue that may include reduced deployment and development of software product, payments of incurred costs, and contract value reductions that differ materially from the contract agreement.

No definition available.

Name:	csc_SpecifiedContractChargeChargedToRevenueAndExcludedFromCostOfServices
Namespace Prefix:	csc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration