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Divestitures (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended						0 Months Ended		3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended			3 Months Ended	12 Months Ended
	Mar. 28, 2014 Businesses	Mar. 29, 2013	Mar. 30, 2012	Mar. 28, 2014 GBS Segment [Member]	Mar. 29, 2013 GBS Segment [Member]	Dec. 27, 2013 European Healthcare [Member] European GBS - IS&S [Member]	Jul. 19, 2013 NPS Applied Technology Division [Member]	May 21, 2013 Flood-Insurance-Related Business Process Outsourcing Practice [Member]	Mar. 28, 2014 Flood-Insurance-Related Business Process Outsourcing Practice [Member]	Mar. 29, 2013 CSC Credit Services, Enterprise System Integration Businessa and CSC Italia [Member] GBS Segment [Member] Businesses	Jun. 28, 2013 CSC Credit Services [Member] GBS Segment [Member]	Mar. 29, 2013 CSC Credit Services [Member] GBS Segment [Member]	Mar. 29, 2013 Enterprise System Integration Business [Member] GBS Segment [Member]	Mar. 29, 2013 CSC Italia [Member] GBS Segment [Member]	Jun. 28, 2013 Paxus [Member]	Mar. 29, 2013 Paxus [Member]	Mar. 29, 2013 Paxus [Member] GBS Segment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amount of cash consideration received							$ 178	$ 43			$ 2	$ 1,003	$ 90			$ 63
Discontinued Operation, Intercompany Amounts with Discontinued Operation before Disposal Transaction, Costs														35
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents							7							8
Discontinued Operations, Proceeds from Divestirure of Business, Purchase Price Adjustment														6
Accounts Receivable, Net, Current																16
Number of Divestitures in Period	2									3
Disposal Group, Including Discontinued Operations, Transaction Costs							5			11							3
Assets of Disposal Group, Including Discontinued Operation, Current						25	142	9		129							41
Assets of Disposal Group, Including Discontinued Operation, Noncurrent										11							2
Disposal Group, Including Discontinued Operation, Goodwill							41	12		241
Liabilities of Disposal Group, Including Discontinued Operation	1						35	1		85							5
Disposal Group, Including Discontinued Operations, Equity of Disposal Group							21
Discontinued Operation, Tax Effect of Discontinued Operation		3	82
Deductions	(53)	(241)		(12)	(241)
Consideration of divested assets															10	79
Noncash or Part Noncash Divestiture, Amount of Consideration Received															6
Pre-tax gain from divestiture																38
Operations [Abstract]
Revenue	235	1,193	1,401
Income from discontinued operations, before taxes	(1)	115	140
Taxes on income	(4)	(51)	25
Net income from discontinued operations	(5)	64	165
Disposal [Abstract]
(Loss) gain on disposition, before taxes	(89)	(769)	2
Taxes on income	(15)	(352)	3
Gain (loss) on disposition, net of taxes	74	417	1
Income from discontinued operations, net of taxes	69	481	166
Disposal Group, Including Discontinued Operation, Other Noncurrent Assets						31	11	2
Disposal Group, Including Discontinued Operation, Other Current Liabilities							66
Liabilities of Disposal Group, Including Discontinued Operation, Current						31
Liabilities of Disposal Group, Including Discontinued Operation, Noncurrent						25
Discontinued Operations, Proceeds from Divestiture of Business, Working Capital Adjustment							6	4	3				13
Discontinued Operation, Amount of Reduction to Prior Gain									1
Proceeds from business dispositions	$ 248	$ 1,108	$ 2				$ 65	$ 25