Divestitures (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			0 Months Ended		3 Months Ended
	Mar. 28, 2014 Businesses	Mar. 29, 2013	Mar. 30, 2012	Jul. 19, 2013	May 21, 2013	Mar. 28, 2014	Jun. 28, 2013	Dec. 27, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Divestitures in Period	2
Liabilities of Disposal Group, Including Discontinued Operation	$ 1					$ 1
Discontinued Operation, Tax Effect of Discontinued Operation		3	82
Deductions	53	241
Pre-tax gain from divestiture		38
Operations [Abstract]
Revenue	235	1,193	1,401
Income from discontinued operations, before taxes	9	116	135
Taxes on income	(7)	(51)	26
Net income from discontinued operations	2	65	161
Disposal [Abstract]
(Loss) gain on disposition, before taxes	(101)	(769)	2
Taxes on income	(15)	(352)	3
Gain (loss) on disposition, net of taxes	86	417	1
Income from discontinued operations, net of taxes	88	482	162
Proceeds from business dispositions	248	1,108	2
GBS Segment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deductions	12	241
European Healthcare [Member] | European GBS - IS&S [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Assets of Disposal Group, Including Discontinued Operation, Current								25
Disposal [Abstract]
Disposal Group, Including Discontinued Operation, Other Noncurrent Assets								31
Liabilities of Disposal Group, Including Discontinued Operation, Current								31
Liabilities of Disposal Group, Including Discontinued Operation, Noncurrent								25
NPS Applied Technology Division [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amount of cash consideration received				178
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents				7
Disposal Group, Including Discontinued Operations, Transaction Costs				5
Assets of Disposal Group, Including Discontinued Operation, Current				142
Disposal Group, Including Discontinued Operation, Goodwill				41
Liabilities of Disposal Group, Including Discontinued Operation				35
Disposal Group, Including Discontinued Operations, Equity of Disposal Group				9
Disposal [Abstract]
Disposal Group, Including Discontinued Operation, Other Noncurrent Assets				11
Disposal Group, Including Discontinued Operation, Other Current Liabilities				66
Discontinued Operations, Proceeds from Divestiture of Business, Working Capital Adjustment				6
Proceeds from business dispositions				77
Flood-Insurance-Related Business Process Outsourcing Practice [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amount of cash consideration received					43
Assets of Disposal Group, Including Discontinued Operation, Current					9
Disposal Group, Including Discontinued Operation, Goodwill					12
Liabilities of Disposal Group, Including Discontinued Operation					1
Disposal [Abstract]
Disposal Group, Including Discontinued Operation, Other Noncurrent Assets					2
Discontinued Operations, Proceeds from Divestiture of Business, Working Capital Adjustment					4	3
Discontinued Operation, Amount of Reduction to Prior Gain						1
Proceeds from business dispositions					25
CSC Credit Services, Enterprise System Integration Businessa and CSC Italia [Member] | GBS Segment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Divestitures in Period		3
Disposal Group, Including Discontinued Operations, Transaction Costs		11
Assets of Disposal Group, Including Discontinued Operation, Current		129
Disposal Group, Including Discontinued Operation, Long Lived Assets		11
Disposal Group, Including Discontinued Operation, Goodwill		241
Liabilities of Disposal Group, Including Discontinued Operation		85
CSC Credit Services [Member] | GBS Segment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amount of cash consideration received		1,003					2
Enterprise System Integration Business [Member] | GBS Segment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amount of cash consideration received		90
Disposal [Abstract]
Discontinued Operations, Proceeds from Divestiture of Business, Working Capital Adjustment		13
CSC Italia [Member] | GBS Segment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued Operation, Intercompany Amounts with Discontinued Operation before Disposal Transaction, Costs		35
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents		8
Discontinued Operations, Proceeds from Divestirure of Business, Purchase Price Adjustment		6
Paxus [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amount of cash consideration received		63
Accounts Receivable, Net, Current		16
Consideration of divested assets		79					10
Noncash or Part Noncash Divestiture, Amount of Consideration Received							6
Paxus [Member] | GBS Segment [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operations, Transaction Costs		3
Assets of Disposal Group, Including Discontinued Operation, Current		41
Disposal Group, Including Discontinued Operation, Long Lived Assets		2
Liabilities of Disposal Group, Including Discontinued Operation		$ 5