Computer Sciences (CSC) 10-K 8 Jun 15 2015 FY Annual report Financial data

Document_And_Entity_Informatio

Document And Entity Information (USD $)	12 Months Ended
	Apr. 03, 2015	15-May-15	Oct. 03, 2014
Document Information [Abstract]
Entity Registrant Name	COMPUTER SCIENCES CORP
Entity Central Index Key	23082
Current Fiscal Year End Date	1
Entity Filer Category	Large Accelerated Filer
Document Type	10-K
Document Period End Date	3-Apr-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Amendment Flag	FALSE
Entity Common Stock, Shares Outstanding		137,679,779
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$8,261,393,187

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Apr. 03, 2015	Mar. 28, 2014
In Millions, unless otherwise specified
Current assets:
Cash and cash equivalents	$2,098	$2,443
Receivables, net of allowance for doubtful accounts of $41 (fiscal 2015) and $48 (fiscal 2014)	2,369	2,759
Prepaid expenses and other current assets	438	426
Total current assets	4,905	5,628
Intangible and other assets:
Software, net of accumulated amortization of $1,642 (fiscal 2015) and $1,680 (fiscal 2014)	751	650
Outsourcing contract costs, net of accumulated amortization of $476 (fiscal 2015) and $1,038 (fiscal 2014)	326	427
Goodwill	1,671	1,667
Other assets	965	986
Total intangible and other assets	3,713	3,730
Property and equipment, net of accumulated depreciation of $3,461 (fiscal 2015) and $3,620 (fiscal 2014)	1,583	2,031
Total Assets	10,201	11,389
Current liabilities:
Short-term debt and current maturities of long-term debt	904	681
Accounts payable	422	394
Accrued payroll and related costs	356	592
Accrued expenses and other current liabilities	1,239	1,094
Deferred revenue and advance contract payments	618	624
Income taxes payable and deferred income taxes	62	77
Total current liabilities	3,601	3,462
Long-term debt, net of current maturities	1,765	2,207
Income tax liabilities and deferred income taxes	412	557
Other long-term liabilities	1,474	1,219
Commitments and contingencies
CSC stockholders’ equity:
Preferred stock, par value $1 per share; authorized 1,000,000 shares; none issued	0	0
Common stock, par value $1 per share; authorized 750,000,000; issued 148,373,736 (fiscal 2015) and 154,720,451 (fiscal 2014)	148	155
Additional paid-in capital	2,286	2,304
Earnings retained for use in business	912	1,592
Accumulated other comprehensive loss	21	279
Less: common stock in treasury, at cost, 9,600,396 (fiscal 2015) and 9,149,009 (fiscal 2014)	-446	-418
Total CSC stockholders’ equity	2,921	3,912
Noncontrolling interest in subsidiaries	28	32
Total Equity	2,949	3,944
Total Liabilities and Equity	$10,201	$11,389

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS Parenthetical (USD $)	Apr. 03, 2015	Mar. 28, 2014
In Millions, except Share data, unless otherwise specified
Current assets:
Allowance for doubtful accounts	$41	$48
Intangible and other assets:
Accumulated amortization	2,445	3,033
Less: accumulated depreciation and amortization	3,461	3,620
CSC stockholders' equity:
Preferred stock, par value (in dollars per share)	$1	$1
Preferred stock, authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$1	$1
Common stock, authorized (in shares)	750,000,000	750,000,000
Common stock, issued (in shares)	148,373,736	154,720,451
Common stock in treasury, at cost (in shares)	9,600,396	9,149,009
Software
Intangible and other assets:
Accumulated amortization	1,642	1,680
Outsourcing contract costs
Intangible and other assets:
Accumulated amortization	$476	$1,038

CONSOLIDATED_STATEMENTS_OF_OPE

CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Income Statement [Abstract]
Revenues	$12,173	$12,998	$14,195
Costs of services (excludes depreciation and amortization and restructuring costs)	9,534		11,293
Selling, general and administrative (excludes SEC settlement related charges and restructuring costs)	1,340
Selling, general and administrative - SEC settlement related charges	197	0	0
Depreciation and amortization	977	1,018	1,070
Restructuring costs	261	76	264
Interest expense	148	147	183
Interest income	-20	-16	-22
Other expense (income), net	12	18	-25
Total costs and expenses	12,449	11,735	13,960
(Loss) income from continuing operations, before taxes	-276	1,263	235
Income tax (benefit) expense	-312	383	-62
Income from continuing operations	36	880
(Loss) income from discontinued operations, net of taxes	-29	88	482
Net income	7	968	779
Less:
Net income attributable to noncontrolling interest, net of tax	15	21	19
Net (loss) income attributable to CSC common stockholders	($8)	$947	$760
Earnings (loss) per common share - Basic:
Continuing operations (in dollars per share)	$0.15	$5.81	$1.80
Discontinued operations (in dollars per share)	($0.21)	$0.60	$3.12
Basic EPS (in dollars per share)	($0.06)	$6.41	$4.92
Earnings (loss) per common share - Diluted:
Discontinued operations (in dollars per share)		$0.58
Diluted EPS (in dollars per share)	($0.05)
Cash dividend per common share (in dollars per share)	$0.92	$0.80	$0.80

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Statement of Comprehensive Income [Abstract]
Net income	$7	$968	$779
Other comprehensive (loss) income, net of taxes:
Foreign currency translation adjustments, net of tax (expense) benefit of $(3), $(2), and $12 in fiscal 2015, 2014, and 2013	-310	-81	-92
Foreign currency forward contracts, net of tax expense of $0 in fiscal 2015, 2014, and 2013)	-2	0	0
Pension and other postretirement benefit plans, net of tax:
Prior service credit, net of tax (expense) benefit of $(37), $0, and $(8) in fiscal 2015, 2014, and 2013	57	265	19
Amortization of transition obligation, net of tax expense of $0 for fiscal 2015, 2014, and 2013	1	1	1
Amortization of prior service cost, net of tax benefit of $7, $1, and $1 in fiscal 2015, 2014, and 2013	-16	-4	0
Foreign currency exchange (loss) gain, net of tax benefit (expense) of $0, $0, and $(8) in fiscal 2015, 2014, and 2013	0	2	-8
Pension and other postretirement benefit plans, net of tax	42	264	12
Other comprehensive (loss) income, net of taxes	-270	183	-80
Comprehensive (loss) income	-263	1,151	699
Less: comprehensive income attributable to noncontrolling interest	15	30	19
Comprehensive (loss) income attributable to CSC common stockholders	($278)	$1,121	$680

CONSOLIDATED_STATEMENTS_OF_COM1

CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (Parentheticals) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Foreign currency translation adjustments, tax benefit (expense)	($3)	($2)	$12
Foreign currency forward contracts, tax benefit (expense)	0	0	0
Prior service cost / (credit), tax benefit (expense)	-37	0	-8
Amortization of transition obligation, tax benefit (expense)	0	0	0
Amortization of prior service (credit) / cost, tax benefit (expense)	7	1	1
Foreign currency exchange rate changes, tax benefit (expense)	$0	$0	($8)

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Cash flows from operating activities:
Net income	$7	$968	$779
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	977	1,018	1,070
Pension & OPEB actuarial & settlement losses (gains)	782	-259	297
Stock-based compensation	68	73	49
Deferred taxes	-449	169	99
Gain on dispositions	-22	-85	-797
Provision for losses on accounts receivable	2	4	18
Excess tax benefit from stock based compensation	-18	-8	-3
Unrealized foreign currency exchange gain	-4	-29	-37
Impairment losses and contract write-offs	0	3	9
Cash surrender value in excess of premiums paid	-9	-8	-10
Other non-cash charges, net	39	55	64
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Decrease in receivables	237	168	55
(Increase) decrease in prepaid expenses and other current assets	-36	-40	22
Decrease in accounts payable and accrued expenses	-335	-549	-766
Increase in accrual for SEC settlement related charges	190	0	0
(Decrease) increase in income taxes payable and income tax liability	-23	119	40
Increase in advanced contract payments and deferred revenue	11	2	270
Other operating activities, net	16	-41	-40
Net cash provided by operating activities	1,433	1,560	1,119
Cash flows from investing activities:
Purchases of property and equipment	-381	-420	-395
Payments for outsourcing contract costs	-68	-71	-115
Software purchased and developed	-199	-197	-162
Payments for acquisitions, net of cash acquired	-49	-190	-34
Proceeds from business dispositions	-13	248	1,108
Proceeds from sale of assets	155	38	32
Other investing activities, net	19	26	22
Net cash (used in) provided by investing activities	-536	-566	456
Cash flows from financing activities:
Borrowings under lines of credit and short-term debt	0	439	128
Repayment of borrowings under lines of credit	-32	0	-169
Borrowing on long-term debt, net of discount	0	0	1,077
Principal payments on long-term debt	-242	-492	-1,238
Proceeds from stock options and other common stock transactions	196	214	55
Excess tax benefit from stock based compensation	18	8	3
Repurchase of common stock and advance payment for accelerated share repurchase	-842	-521	-283
Dividend payments	-128	-119	-124
Payment of contingent consideration	0	-98	0
Other financing activities, net	-8	-30	-38
Net cash used in financing activities	-1,038	-599	-589
Effect of exchange rate changes on cash and cash equivalents	-204	-6	-25
Net (decrease) increase in cash and cash equivalents	-345	389	961
Cash and cash equivalents at beginning of year	2,443	2,054	1,093
Cash and cash equivalents at end of year	$2,098	$2,443	$2,054

CONSOLIDATED_STATEMENTS_OF_CHA

CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $)	Total	Common Stock	Additional Paid-In Capital	Retained Earnings For Use in Business	Accumulated Other Comprehensive Income (Loss)	Common Stock in Treasury	Total CSC Equity	Non-Controlling Interest
In Millions, except Share data, unless otherwise specified
Balance at Mar. 30, 2012	$2,834	$164	$2,168	$668	$188	($390)	$2,798	$36
Balance (in shares) at Mar. 30, 2012		163,720,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	779			760			760	19
Other comprehensive (loss) income	-80				-80		-80
Stock-based compensation expense	48		48				48
Acquisition of treasury stock	-11					-11	-11
Share repurchase program (in shares)		6,708,000
Share repurchase program	305	7	94	204			305
Stock option exercises and other common stock transactions (in shares)		1,972,000
Stock option exercises and other common stock transactions	47	2	45				47
Cash dividends declared	-123			-123			-123
Noncontrolling interest distributions and other	-29						0	-29
Balance at Mar. 29, 2013	3,160	159	2,167	1,101	108	-401	3,134	26
Balance (in shares) at Mar. 29, 2013		158,984,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	968			947			947	21
Other comprehensive (loss) income	183				183		183
Stock-based compensation expense	71		71				71
Acquisition of treasury stock	-17					-17	-17
Share repurchase program (in shares)		9,773,000
Share repurchase program	505	10	145	350			505
Stock option exercises and other common stock transactions (in shares)		5,510,000
Stock option exercises and other common stock transactions	217	6	211				217
Cash dividends declared	-118			-118			-118
Adjustments from business disposition	9							9
Noncontrolling interest distributions and other	-24			12	-12		0	-24
Balance at Mar. 28, 2014	3,944	155	2,304	1,592	279	-418	3,912	32
Balance (in shares) at Mar. 28, 2014		154,721,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	7			-8			-8	15
Other comprehensive (loss) income	-270				-270		-270
Stock-based compensation expense	67		67				67
Acquisition of treasury stock	-28					-28	-28
Share repurchase program (in shares)		11,716,000
Share repurchase program	836	12	295	529			836
Stock option exercises and other common stock transactions (in shares)		5,369,000
Stock option exercises and other common stock transactions	215	5	210				215
Cash dividends declared	-131			-131			-131
Noncontrolling interest distributions and other	-19			-12	12		0	-19
Balance at Apr. 03, 2015	$2,949	$148	$2,286	$912	$21	($446)	$2,921	$28
Balance (in shares) at Apr. 03, 2015		148,374,000

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Apr. 03, 2015
Summary of Significant Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies
	Basis of Presentation and Principles of Consolidation
	The accompanying consolidated financial statements and notes are those of Computer Sciences Corporation, its subsidiaries, and those business entities in which the Company maintains a controlling interest, hereafter collectively referred to as “CSC” or “the Company.” Investments in business entities in which the Company does not have control, but has the ability to exercise significant influence over operating and financial policies, are accounted for by the equity method. Other investments are accounted for by the cost method. All intercompany transactions and balances have been eliminated.
	The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (GAAP) and pursuant to the rules and regulations of the Securities and Exchange Commission (SEC).
	The Company reports its results based on a fiscal year convention that comprises four thirteen-week quarters. Every fifth year includes an additional week in the first quarter to prevent the fiscal year from moving from an approximate end of March date. As a result, the first quarter of fiscal 2015 was a fourteen-week quarter.
	During the first quarter of fiscal 2015, the Company changed its accounting policy for the recognition of actuarial gains and losses for its defined benefit pension and other post-employment benefit plans. These changes have been reported through retrospective application of the new accounting methods to all periods presented (see Note 3).
	Effective fiscal 2015, the Company changed its inter-company accounting policy. Previously, inter-company transactions between segments were generally reflected as inter-company revenue. Under the new policy, inter-company transactions are now generally treated as cost transfers. The new inter-company policy has been applied retrospectively, adjusting the segment results for all prior periods (see Note 20).
	For classification of certain assets and liabilities of our U.S. federal government contracts as current or long-term, we use the duration of the related contract as our operating cycle, which is generally longer than one year.
	Use of Estimates
	GAAP requires management to make estimates and assumptions that affect the amounts reported in the Consolidated Financial Statements and accompanying notes. These estimates are based on management’s best knowledge of historical experience, current events, and on various other assumptions that are believed to be reasonable under the circumstances. Actual results could differ from these estimates. Amounts subject to significant judgment and estimates include, but are not limited to, contracts accounted for using the percentage-of-completion method, cash flows used in the evaluation of impairment of goodwill and other long-lived assets, intangible assets, certain deferred costs, collectability of receivables, reserves for uncertain tax benefits, valuation allowances on deferred tax assets, loss accruals for litigation, pension related liabilities, inputs used for computing stock-based compensation and the fair value of derivative instruments.
	The Company's income (loss) from continuing operations, before taxes and noncontrolling interests, and diluted earnings per share (EPS) from continuing operations included the following adjustments due to changes in estimated profitability on fixed price contracts accounted for under the percentage-of-completion method for the fiscal years presented:
			Twelve Months Ended
	(Amounts in millions), except per share data		April 3, 2015			March 28, 2014			March 29, 2013
	Gross favorable		$	112		$	125		$	142
	Gross unfavorable		(40		)	(50		)	(122		)
	Total net adjustments, before taxes and noncontrolling interests (1)		$	72		$	75		$	20
	Impact on diluted EPS from continuing operations		$	0.29		$	0.31		$	(0.10	)
	(1)	Quarterly changes in estimated profitability on the same fixed price contract are disclosed gross as either favorable or unfavorable.
	Revenue Recognition
	The Company's primary service offerings are information technology (IT) outsourcing, other professional services, or a combination thereof. Revenues are recognized when persuasive evidence of an arrangement exists, services or products have been provided to the client, the sales price is fixed or determinable, and collectability is reasonably assured. For non-software arrangements that include multiple-elements, revenue recognition involves the identification of separate units of accounting after consideration of combining and/or segmenting contracts and allocation of the arrangement consideration to the units of accounting on the basis of their relative selling price. Revenue under such contracts is recognized based upon the levels of services delivered in the periods in which they are provided. Upfront fees billed for the contract set-up include configuring hardware to new service levels, consolidating and migrating customer architecture from physical to virtual servers, and establishing disaster recoverability capability. These activities do not qualify as separate units of accounting, and the related revenues are deferred until service commencement and recognized ratably over the period of performance during the period in which CSC provides the related service, which is typically the life of the contract. Costs are expensed as incurred, except for direct and incremental set-up costs that are capitalized and amortized on a straight-line basis over the life of the contract (see Outsourcing Contract Costs below). See the section below regarding software transactions that include multiple elements.
	The Company provides these services under time and materials, cost-reimbursable, unit-price and fixed-price contracts, the revenue for which is recognized in the following manner:
	Time and materials contracts - Revenue is recorded at agreed-upon billing rates at the time services are provided.
	Cost-reimbursable contracts - Revenue is recorded at the time costs are incurred and associated fees are recognized when probable and estimable by applying an estimated factor to costs as incurred, such factor being determined by the contract provisions and prior experience.
	Unit-price contracts - Revenue is recognized on unit-price contracts based on unit metrics multiplied by the agreed upon contract unit price or when services are delivered.
	Fixed-price contracts - For certain fixed-price contracts, revenue is recognized under the percentage-of-completion method as described below; these include certain software development projects, all long-term construction-type contracts, and certain fixed-price arrangements with the U.S. federal government. For other fixed-price contracts, revenue is recognized based on the proportion of the services delivered to date as a percentage of the total services to deliver over the contract term. If output or input measures are not available or cannot be reasonably estimated, revenues are recognized ratably over the contract term.
	Under the percentage-of-completion method, progress towards completion is measured based on either achievement of specified contract milestones, costs incurred as a proportion of estimated total costs, or other measures of progress when available. Profit in a given period is reported at the estimated profit margin to be achieved on the overall contract. This method can result in the recognition of unbilled receivables, the deferral of costs as work in process, or deferral of profit on these contracts. Contracts that require estimates at completion using the percentage-of-completion method accounted for approximately 16.5% of the Company's revenues for fiscal 2015. Management regularly reviews project profitability and underlying estimates. Revisions to the estimates at completion are reflected in results of operations as a change in accounting estimate in the period in which the facts that give rise to the revision become known by management. Provisions for estimated losses at completion, if any, are recognized in the period in which the loss becomes evident. The provision includes estimated costs in excess of estimated revenue and any profit margin previously recognized.
	Multiple-element software sales - For multiple-element arrangements that involve the sale of CSC proprietary software, post contract customer support, and other software-related services, vendor-specific objective evidence (VSOE) of fair value is required to allocate and recognize revenue for each element. VSOE of fair value is determined based on the price charged where each deliverable is sold separately. In situations where VSOE of fair value exists for all undelivered elements but not a delivered element (typically the software license element), the residual method is used to allocate revenue to the undelivered elements equal to their VSOE value with the remainder allocated to the delivered element. If significant customization is required, and VSOE is available to support accounting for the software as a separate unit of account, software revenue is recognized as the related software customization services are performed in accordance with the percentage-of-completion method described above. In situations where VSOE of fair value does not exist for all of the undelivered software-related elements, revenue is deferred until only one undelivered element remains and then recognized following the pattern of delivery of the final undelivered element.
	Depreciation and Amortization
	The Company’s depreciation and amortization policies are as follows:
	Property and Equipment:
	Buildings	Up to 40 years
	Computers and related equipment	3 to 5 years
	Furniture and other equipment	2 to 15 years
	Leasehold improvements	Shorter of lease term or useful life
	Software	2 to 7 years
	Outsourcing contract costs	Contract life, excluding option years
	Customer related intangibles	Expected customer service life
	Acquired contract related intangibles	Contract life and first contract renewal, where applicable
	The cost of property and equipment, less applicable residual values, is depreciated using predominately the straight-line method. Depreciation commences when the specific asset is complete, installed and ready for normal use.
	Software and outsourcing contract costs are amortized using predominately the straight-line method. Acquired contract related and customer related intangible assets are amortized in proportion to the estimated undiscounted cash flows projected over the estimated life of the asset or on a straight-line basis if such cash flows cannot be reliably estimated.
	Termination Benefits
	Termination benefits, offered to employees in connection with workforce reductions, are considered part of an ongoing benefit arrangement and are accounted for in accordance with ASC Topic 712, “Compensation — Non-retirement Post-employment Benefits.” Consequently, such benefits are recorded when payment of the benefits is probable and can be reasonably estimated.
	Pension and Other Benefit Plans
	The Company and its subsidiaries offer a number of pension and postretirement benefits, life insurance benefits, deferred compensation, and other plans. Most of CSC's pension liabilities are frozen to new accruals. All plans are accounted for using the guidance of Accounting Standards Codification (ASC) 710 "Compensation - General" and ASC 715 “Compensation—Retirement Benefits” and are measured as of the end of the fiscal year.
	Effective the first quarter of fiscal 2015, the Company changed its accounting policy for measuring and recognition of actuarial gains and losses for its defined benefit pension and other post-retirement benefit plans and the calculation of the expected return on pension plan assets. Historically, the Company recognized actuarial gains and losses in excess of 10% of the greater of the market-related value of plan assets or the plans’ projected benefit obligations (the “corridor”) as a component of accumulated other comprehensive loss and, depending on the benefit plan, the Company amortized these gains and losses to earnings either over the remaining average service period for the active participants or over the average remaining life expectancy of the inactive participants. Additionally, for the Company’s U.S. plans and the Australian plan, the Company previously used a calculated value for the market-related valuation of pension plan assets, reflecting changes in the fair value of plan assets over a three-year and a one-year period, respectively. Under the Company’s new accounting policy, the Company recognizes changes in actuarial gains and losses and the changes in fair value of plan assets in earnings at the time of plan remeasurement, typically annually during the fourth quarter of each year as a component of net periodic benefit expense, and the Company no longer applies a corridor and, therefore, no longer defers any gains or losses.
	The new accounting policies result in the changes in actuarial gains and losses and the changes in fair value of plan assets being recognized in earnings in the year they occur, rather than amortized over time, and therefore recognized earlier than under the Company’s previous methods of accounting. The Company believes the new pension accounting policies are preferable as they recognize the effects of plan investment performance, interest rate changes, changes in actuarial assumptions as a component of earnings in the year in which they occur rather than amortized over time, and additionally, conform all plans to a consistent policy for determining market-related value of plan assets.
	The remaining components of pension/postretirement expense, primarily current period service and interest costs and expected return on plan assets, will continue to be recorded on a quarterly basis.
	Inherent in the application of the actuarial methods are key assumptions, including, but not limited to, discount rates, expected long-term rates of return on plan assets, mortality rates, rates of compensation increases, and medical cost trend rates. Company management evaluates these assumptions annually and updates assumptions as necessary. The fair value of assets are determined based on the prevailing market prices or estimated fair value of investments when quoted prices are not available.
	Software Development Costs
	The Company capitalizes costs incurred to develop commercial software products to be sold, leased or otherwise marketed after establishing technological feasibility until such time the software products are available for general release to customers. Costs incurred to establish technological feasibility are charged to expense as incurred. Enhancements to software products are capitalized where such enhancements extend the life or significantly expand the marketability of the products. Amortization of capitalized software development costs is determined separately for each software product. Annual amortization expense is calculated based on the greater of the ratio of current gross revenues for each product to the total of current and anticipated future gross revenues for the product or the straight-line amortization method over the estimated economic life of the product.
	Unamortized capitalized software costs associated with commercial software products are regularly evaluated for impairment on a product-by-product basis by a comparison of the unamortized balance to the product’s net realizable value. The net realizable value is the estimated future gross revenues from that product reduced by the related estimated future costs. When the unamortized balance exceeds the net realizable value, the unamortized balance is written down to the net realizable value and an impairment charge is recorded.
	The Company capitalizes costs incurred to develop internal-use computer software during the application development stage. Costs related to preliminary project activities and post implementation activities are expensed as incurred. Internal and external costs incurred in connection with development of upgrades or enhancements that result in additional functionality are also capitalized. Capitalized costs associated with internal-use software are amortized on a straight-line basis over the estimated useful life of the software. Purchased software is capitalized and amortized over the estimated useful life of the software. Internal-use software assets are evaluated for impairment whenever events or changes in circumstances occur that could impact the recoverability of these assets.
	Outsourcing Contract Costs
	Costs on outsourcing contracts, including costs incurred for bid and proposal activities, are generally expensed as incurred. However, certain costs incurred upon initiation of an outsourcing contract are deferred and expensed over the contract life. These costs represent incremental external costs or certain specific internal costs that are directly related to the contract acquisition or transition activities and can be separated into two principal categories: contract premiums and transition/set-up costs. Examples of such capitalized costs include labor and related fringe benefits, subcontractor costs, travel costs, and premiums on property and equipment purchases.
	Contract premiums are amounts paid to customers in excess of the fair value of assets acquired. Fixed assets acquired in connection with outsourcing contracts are capitalized at fair value and depreciated consistent with the depreciation and amortization policy described above. Contract premiums paid are capitalized as outsourcing contract costs and amortized over the contract life. The amortization of contract premiums is accounted for as a reduction in revenue.
	Transition/set-up costs are primarily associated with assuming control over customer IT operations and transforming them in line with contract specifications and are amortized over the contract life.
	In the event indications exist that an outsourcing contract cost balance related to a particular contract may be impaired, the remaining estimated undiscounted cash flows of the contract are compared to the associated long-lived asset group including the unamortized outsourcing contract cost balance. If the remaining estimated undiscounted cash flows are not adequate to recover the unamortized cost balance of the asset group, a detailed evaluation is performed and, based on the fair value of the long-lived assets group, any unrecoverable balance is recognized as impairment in the period. Examples of such indicators include situations when a contract is materially underperforming, or is expected to materially underperform in the future, as compared to the original bid model or subsequent annual budgets.
	In the event of an early termination of an outsourcing contract, the Company and the customer, pursuant to certain contractual provisions, engage in discussions to determine the recovery of unamortized contract costs, lost profits, transfer of personnel, rights to implemented systems and processes, as well as other matters.
	Stock-Based Compensation
	The Company provides different forms of stock-based compensation to its employees and non-employee directors. This includes stock options and restricted stock units (RSUs), including performance-based restricted stock units (PSUs). The fair value of the awards is determined on the grant date, based on the Company's closing stock price. For awards settled in shares, the Company recognizes compensation expense based on the grant-date fair value net of estimated forfeitures over the vesting period. For awards settled in cash, the Company recognizes compensation expense based on the fair value at each reporting date net of estimated forfeitures.
	The Company uses the Black-Scholes-Merton model in determining the fair value of options granted. The expected term is calculated based on the Company’s historical experience with respect to its stock plan activity in combination with an estimate of when vested and unexercised option shares will be exercised. The expected term of options is based on the two separate job tier classifications, which have distinct historical exercise behavior. The risk-free interest rate is based on the zero-coupon interest rate of U.S. government issued Treasury strips with a period commensurate with the expected term of the options. Expected volatility is based on a blended approach, which uses a 2/3 weighting for historical volatility and 1/3 weighting for implied volatility. The Company’s historical volatility calculation is based on either the Company’s six-year or seven-year historical closing prices, based on employee class, in order to bring this factor more closely into alignment with the expected terms of the stock options. The dividend yield assumption was added concurrent with the introduction of a cash dividend in fiscal 2011 and is based on the respective fiscal year dividend payouts. The Company periodically evaluates its significant assumptions used in the fair value calculation.
	Acquisition Accounting and Goodwill
	When the Company acquires a controlling financial interest through a business combination, CSC uses the acquisition method of accounting to allocate the purchase consideration to the assets acquired and liabilities assumed, which are generally recorded at fair value. Any excess of purchase consideration over the fair value of the acquired assets and assumed liabilities is recognized as goodwill.
	If the initial accounting for an acquisition is incomplete by the end of the reporting period in which it occurs, the Company reports provisional amounts for the items for which the accounting is incomplete. During the measurement period - no longer than one year from the date of the acquisition - the Company retroactively adjusts the provisional amounts recognized at the acquisition date if CSC obtains new information about facts and circumstances that existed as of the acquisition date that, if known, would have changed the measurement of the amounts originally recognized. Any measurement adjustments to the acquired assets or the assumed liabilities are recorded with a corresponding adjustment to goodwill.
For contingent consideration recorded as a liability, the Company initially measures the amount at fair value as of the acquisition date and adjusts the liability, if needed, to fair value each reporting period. Changes in the fair value of contingent consideration, other than measurement period adjustments, are recognized as operating income or expense.
Acquisition-related expenses are recognized separately from the business combination and are expensed as incurred. The results of operations of acquired businesses are included in the Consolidated Financial Statements from the acquisition date.
The Company tests goodwill for impairment on an annual basis, as of the first day of the second fiscal quarter, and between annual tests if circumstances change, or if an event occurs that would more likely than not reduce the fair value of a reporting unit below its carrying amount. A significant amount of judgment is involved in determining whether an event indicating impairment has occurred between annual testing dates. Such indicators include, among other things: a significant decline in expected future cash flows; a significant adverse change in legal factors or in the business climate; unanticipated competition; the disposal of a significant component of a reporting unit; and the testing for recoverability of a significant asset group within a reporting unit.
The goodwill impairment test initially involves the assessment of qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If the Company determines that it is not more likely than not, then the subsequent two-step process is not required. However, the Company has the option to bypass this initial qualitative assessment for its annual test and proceed directly to step one of the two-step process for one or more of its reporting units. If the Company determines that it is more likely than not that a reporting unit's carrying value exceeds it fair value, then it proceeds with the subsequent two-step goodwill impairment testing process. The first step is to compare each reporting unit’s fair value to its carrying value. If the reporting unit’s fair value exceeds its carrying value, no further procedures are required and no impairment is recorded. However, if a reporting unit’s fair value is less than its carrying value, an impairment of goodwill may exist, requiring the second step to measure the amount of any impairment loss. In the second step, the reporting unit’s fair value is allocated to all of the assets and liabilities of the reporting unit, including any unrecognized intangible assets, for the sole purpose of calculating the implied fair value of goodwill - as if applying the acquisition method of accounting described above to the reporting unit's assets and liabilities. If the implied fair value of goodwill is less than the recorded goodwill, an impairment charge is recorded in operations for the difference.
When the Company performs step one of the two-step test for a reporting unit, it estimates the fair value of the reporting unit using both the income approach and the market approach. The income approach incorporates the use of a discounted cash flow method in which the estimated future cash flows and terminal values for each reporting unit are discounted to a present value using a discount rate. Cash flow projections are based on management's estimates of economic and market conditions, which drive key assumptions of revenue growth rates, operating margins, capital expenditures and working capital requirements. The discount rate is based on the specific risk characteristics of each reporting unit, the weighted-average cost of capital and its underlying forecasts. The market approach estimates fair value by applying performance-metric multiples to the reporting unit's prior and expected operating performance. The multiples are derived from comparable publicly traded companies that have operating and investment characteristics similar to those of the reporting unit. If the fair value of the reporting unit derived using one approach is significantly different from the fair value estimate using the other approach, the Company reevaluates its assumptions used in the two models. The fair values determined by the market approach and income approach, as described above, are weighted to determine the fair value for each reporting unit. The weighting ascribed to the market approach fair value, assigned to each reporting unit, is driven by two primary factors: 1) the number of comparable publicly traded companies used in the market approach, and 2) the similarity of the operating and investment characteristics of the reporting units to the comparable publicly traded companies used in the market approach.
If CSC performs a step one analysis for all of its reporting units in conjunction with its annual goodwill testing, it also compares the sum of all of its reporting units’ fair values to the Company's market capitalization (per-share stock price multiplied by the number of shares outstanding) and calculates an implied control premium (the excess of the sum of the reporting units’ fair values over the market capitalization). The Company evaluates the reasonableness of the control premium by comparing it to control premiums derived from recent comparable business combinations. If the implied control premium is not reasonable in light of the actual acquisition transactions, the Company reevaluates its fair value estimates of the reporting units by adjusting the discount rates and/or other assumptions. As a result, when CSC’s stock price - and thus market capitalization - is low relative to the sum of the estimated fair value of its reporting units, this reevaluation can result in reductions to its estimated fair values for the reporting units.
Fair Value
The Company uses the fair value measurement guidance to value certain of its assets and liabilities. Under this guidance, assets and liabilities are required to be valued based on assumptions used by a market participant, consistent with the following hierarchy of inputs:
Level 1—	Quoted prices unadjusted for identical assets or liabilities in an active market.
Level 2—	Inputs other than quoted prices that are observable, either directly or indirectly, for similar assets or liabilities.
Level 3—	Unobservable inputs that reflect the entity’s own assumptions which market participants would use in pricing the asset or liability.
The assets and liabilities which are valued using the fair value measurement guidance, on a recurring basis, include the Company’s money market funds and money market deposits, time deposits, short-term investments, pension assets, and derivative instruments including foreign currency forward and option contracts, interest rate swap contracts and total return swaps.
The fair value of foreign currency forward contracts is based on quoted prices for similar but not identical derivative instruments; as such, the inputs are considered Level 2 inputs. Option contracts are valued using inputs which are based on quoted pricing intervals from external valuation models, which do not involve management judgment and as such these inputs are considered Level 2 inputs. The fair value of interest rate swaps is estimated based on valuation models that use interest rate yield curves as inputs, which also do not involve management judgment and as such these inputs are considered Level 2 inputs. Total return swaps are settled on the last day of every fiscal month. Certain pension assets are valued using model based pricing methods that use observable market data; as such these inputs are considered Level 2 inputs. There were no significant assets or liabilities measured at fair value on a recurring basis using significant unobservable (Level 3) inputs.
Receivables
Receivables consist of amounts billed and currently due from customers, amounts earned but unbilled (including contracts measured under the percentage-of-completion method of accounting), amounts retained by the customer until the completion of a specified contract, completion of U.S. federal government audit activities, negotiation of contract modification, and claims.
Allowances for uncollectible billed trade receivables are estimated based on a combination of write-off history, aging analysis and any specific known collectability issues. Unbilled amounts under contracts in progress that are recoverable do not have an allowance for credit losses. Adjustments to unbilled amounts under contracts in progress related to credit quality, should they occur, would be recorded as a reduction of revenue.
Impairment of Long-Lived Assets
Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or group of assets may not be recoverable. Recoverability of long-lived assets or groups of assets is assessed based on a comparison of the carrying amount to the estimated future net cash flows. If estimated future undiscounted net cash flows are less than the carrying amount, an expense is recorded in the amount, if any, required to reduce the carrying amount to fair value. Fair value is determined based on a discounted cash flow approach or, when available and appropriate, comparable market values. Long-lived assets to be disposed of are reported at the lower of their carrying amount or their fair value less costs to sell.
Income Taxes
Accounting for income taxes requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the financial statement carrying amounts and the tax bases of assets and liabilities. The Company maintains valuation allowances when, based on the weight of available evidence, it is more likely than not that all or a portion of a deferred tax asset will not be realized. Changes in valuation allowances from period to period are included in the Company’s tax provision in the period of change. In determining whether a valuation allowance is warranted, the Company takes into account such factors as prior earnings history, expected future earnings, carryback and carryforward periods, and tax strategies that could potentially enhance the likelihood of realization of a deferred tax asset.
The Company recognizes uncertain tax positions in the financial statements when it is more likely than not that the tax position will be sustained upon examination. Uncertain tax positions are measured based on the probabilities that the uncertain tax position will be realized upon final settlement (see Note 13).
Cash and Cash Equivalents
The Company considers investments with an original maturity of three months or less to be cash equivalents. The Company’s cash equivalents consist of time deposits, money market funds and money market deposit accounts with a number of institutions that have high credit ratings.
Foreign Currency
The Company has determined that, generally, the local currency of its foreign affiliates is their functional currency. Accordingly, the assets and liabilities of the foreign affiliates are translated from their respective functional currency to U.S. dollars using year-end exchange rates, income and expense accounts are translated at the average rates in effect during the year, and equity accounts are translated at historical rates. The resulting translation adjustment is reported in the Consolidated Statements of Comprehensive Income and recorded as part of accumulated other comprehensive income (AOCI).
Derivative Instruments
The Company is exposed to certain market risks, including the effect of changes in interest rates and foreign currency exchange rates, and the value of notional investments underlying the Company's non-qualified deferred compensation plan. Changes in benchmark interest rates can impact the fair value of the Company's term notes, whereas changes in foreign currency exchange rates can impact the Company's foreign currency denominated monetary assets and liabilities and forecasted transactions in foreign currency. Market volatility of the notional investments underlying the Company's non-qualified deferred compensation plan can impact the Company's obligations under the plan. The Company uses derivative instruments to mitigate the impact of these market risks, not for trading or any speculative purpose.
The Company designates certain derivative instruments as hedges for purposes of hedge accounting, as defined under ASC 815, “Derivatives and Hedging.” For such derivative instruments, the Company documents its risk management objectives and strategy for undertaking hedging transactions, as well as all relationships between hedging and hedged risks. The Company's derivative instruments designated for hedge accounting consist mainly of interest rate swaps and foreign currency forward contracts. Changes in the fair value measurements of the cash flow hedge derivative instruments are reflected as adjustments to other comprehensive income and subsequently reclassified into earnings in the period during which the hedged transactions are recognized in earnings. Changes in fair value measurements of interest rate swaps are recorded in current period earnings and fully offset the changes in the fair value of the hedged debt where such instruments have qualified for the short-cut method of hedge accounting under ASC 815
The derivative instruments not designated as hedges for purposes of hedge accounting include total return swaps and certain short-term foreign currency forward and option contracts. These instruments are recorded at their respective fair values and the change in their value is reported in current period earnings.
All cash flows associated with the Company's derivative instruments are classified as operating activities in the Consolidated Statements of Cash Flows.
Earnings (Loss) Per Share
Basic earnings (loss) per common share (EPS) are computed using the weighted average number of common shares outstanding during the period. Diluted EPS reflect the incremental shares issuable upon the assumed exercise of stock options and equity awards.
New Accounting Standards
During fiscal year 2015, the Company adopted the following Accounting Standard Update (ASU):
In April 2015, the Financial Accounting Standards Board (FASB) issued ASU No. 2015-04, "Compensation - Retirement Benefits (Topic 715): Practical Expedient for the Measurement Date of an Employer's Defined Benefit Plan Obligation and Plan Assets." The objective of ASU 2015-04 is to provide a practical expedient that permits an entity with a fiscal year end that does not coincide with a month end to measure defined benefit plan assets and obligations using the month end that is closest to the fiscal year end. Effective April 3, 2015, CSC early adopted the ASU for each of its defined benefit plans, and determined that it did not have a material effect on its Consolidated Financial Statements.
In February 2013, the FASB issued ASU No. 2013-04, "Obligations Resulting from Joint and Several Liability Arrangements for which the Total Amount of the Obligation Is Fixed at the Reporting Date” (ASU 2013-04). ASU 2013-04 requires an entity to measure obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this guidance is fixed at the reporting date, as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors and any additional amount the reporting entity expects to pay on behalf of its co-obligors. The guidance in ASU 2013-04 also requires an entity to disclose the nature and amount of the obligation as well as other information about those obligations. The amendments in ASU 2013-04 are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Effective March 29, 2014, CSC adopted the amendments in ASU 2013-04 and determined that they did not have a material effect on CSC’s Consolidated Financial Statements.
Standards Issued But Not Yet Effective
The following ASUs were recently issued but have not yet been adopted by CSC:
In April 2015, the FASB issued ASU No. 2015-05, "Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer's Accounting for Fees Paid in a Cloud Computing Arrangement". The amendment adds guidance to existing GAAP by providing guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement does not contain a software license, the customer should account for the arrangement as a service contract. The amendment does not change the accounting for a customer's accounting for service contracts. As a result of the amendment, all software licenses within the scope of Subtopic 350-40 will be accounted for consistent with other licenses of intangible assets. ASU 2015-05 will be effective for CSC in fiscal 2017 and early adoption is permitted. The amendment can either be adopted (1) prospectively to all arrangements entered into or materially modified after the effective date; or (2) retrospectively. For prospective transition, the only disclosure requirements at transition are the nature of and reason for the change in accounting principle, the transition method, and a qualitative description of the financial statement line items affected by the change. For retrospective transition, the disclosure requirements at transition include the requirements for prospective transition and quantitative information about the effects of the accounting change. CSC is currently evaluating the impact that the adoption of ASU 2015-05 may have on CSC's Consolidated Financial Statements.
In April 2015, the FASB issued ASU 2015-03, "Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs", which changes the presentation of debt issuance costs in financial statements. Under the ASU, such costs are presented in the balance sheet as a direct deduction from the related debt liability rather than as an asset. Amortization of the costs is reported as interest expense. Early adoption is allowed for all entities for financial statements that have not been previously issued. The guidance is to be applied retrospectively to all prior periods (i.e., the balance sheet for each period is adjusted). ASU 2015-03 will be effective for CSC beginning in fiscal 2017. CSC is currently evaluating the impact that the adoption of ASU 2015-03 may have on CSC's Consolidated Financial Statements.
In February 2015, the FASB issued ASU No. 2015-02, “Consolidation (Topic 810): Amendments to the Consolidation Analysis” (ASU 2015-02). The objective of ASU 2015-02 is to modify the consolidation requirements of Topic 810 to ensure that reporting entities do not consolidate other legal entities in situations where deconsolidation actually more accurately represents operational and economic results. Among other changes, the amendments to ASC 810 include lessening the relevance on fees paid to a decision-maker or service provider and the related party tiebreaker test.
The amendments are effective for public business entities for fiscal years, and for interim periods within those fiscal years beginning after December 15, 2015. This ASU may be adopted using a full retrospective approach or a modified retrospective approach by recording a cumulative effect adjustment to equity as of the beginning of the fiscal year of adoption. ASU 2015-02 will be effective for CSC beginning in fiscal 2017. CSC is currently evaluating the impact that the adoption of ASU 2015-02 may have on CSC’s Consolidated Financial Statements.
In August 2014, the FASB issued ASU No. 2014-15, “Presentation of Financial Statements - Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern” (ASU 2014-15). ASU 2014-15 is intended to define management’s responsibility to evaluate whether there is substantial doubt about an organization’s ability to continue as a going concern and to provide related footnote disclosures. This ASU provides guidance to an organization’s management, with principles and definitions that are intended to reduce diversity in the timing and content of disclosures that are commonly provided by organizations today in the financial statement footnotes. The amendments are effective for annual periods ending after December 15, 2016, and interim periods within annual periods beginning after December 15, 2016. Early adoption is permitted for annual or interim reporting periods for which the financial statements have not previously been issued. ASU 2014-15 will be effective for CSC for fiscal 2017. CSC believes that the adoption of ASU 2014-15 will not have a material effect on CSC's Consolidated Financial Statements.
In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)” (ASU 2014-09). ASU 2014-09 supersedes the revenue recognition requirements in ASC Topic 605, “Revenue Recognition” and some cost guidance included in ASC Subtopic 605-35, Revenue Recognition - Construction-Type and Production-Type Contracts”. The core principle of ASU 2014-09 is that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which CSC expects to be entitled in exchange for those goods or services. ASU 2014-09 requires the disclosure of sufficient information to enable users of CSC’s financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts. CSC will also be required to disclose information regarding significant judgments and changes in judgments, and assets recognized from costs incurred to obtain or fulfill a contract. ASU 2014-09 provides two methods of retrospective application. The first method would require CSC to apply ASU 2014-09 to each prior reporting period presented. The second method would require CSC to retrospectively apply with the cumulative effect of initially applying ASU 2014-09 recognized at the date of initial application. ASU 2014-09 will be effective for CSC beginning in fiscal 2018; however, a delay in the effective date is currently being considered by the FASB, which we expect will result in at least a one year deferral. The FASB may also permit companies to adopt ASU 2014-09 early, but not before the original public company effective date (that is, annual periods beginning after December 15, 2016). CSC is currently evaluating the impact that the adoption of ASU 2014-09 may have on CSC’s Consolidated Financial Statements.
In April 2014, the FASB issued ASU No. 2014-08, “Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity” (“ASU 2014-08”), which changes the requirements for reporting discontinued operations in Subtopic 205-20 “Presentation of Financial Statements - Discontinued Operations.” The ASU changes the definition of discontinued operations by limiting discontinued operations reporting to disposals that represent strategic shifts that have (or will have) a major effect on an entity’s operations and financial results. Under current U.S. GAAP, many disposals, some of which may be routine in nature and not representative of a substantive change in an entity’s strategy, are reported in discontinued operations. ASU 2014-08 requires expanded disclosures for discontinued operations designed to provide users of financial statements with more information about the assets, liabilities, revenues, expenses and cash flows related to discontinued operations. ASU 2014-08 also requires an entity to disclose the pretax profit or loss (or change in net assets for a not-for-profit entity) of an individually significant component of an entity that does not qualify for discontinued operations reporting. The amendments in ASU 2014-08 are effective prospectively for fiscal years, and interim periods, beginning after December 15, 2014. ASU 2014-08 will be effective for CSC beginning in Q1 FY 2016 and CSC will evaluate each divestiture to determine the appropriate presentation and disclosure requirements associated with CSC's Consolidated Financial Statements.
In January 2014, the FASB issued ASU No. 2014-05, "Service Concession Arrangements (Topic 853) (a consensus of the FASB Emerging Issues Task Force)” (“ASU 2014-05”). ASU 2014-05 provides guidance on the accounting for service concession arrangements, which are arrangements between a public-sector entity grantor and an operating entity under which the operating entity operates the grantor’s infrastructure (e.g. airports, roads, or bridges). The operating entity also may provide the construction, upgrading, or maintenance services of the grantor’s infrastructure. ASU 2014-05 specifies that an operating entity should not account for a service concession arrangement that is within the scope of this ASU as a lease in accordance with Topic 840, "Leases." ASU 2014-05 also specifies that the infrastructure used in a service concession arrangement should not be recognized as property, plant, and equipment of the operating entity. For CSC, ASU 2014-05 will be effective beginning in fiscal 2016. CSC has determined this ASU will not have a material impact on CSC's Consolidated Financial Statements.

Defined_Benefit_Pension_Plan_A

Defined Benefit Pension Plan Accounting Policy Changes	12 Months Ended
	Apr. 03, 2015
Accounting Changes and Error Corrections [Abstract]
Defined Benefit Pension Plan Accounting Policy Changes	Defined Benefit Pension Plan Accounting Policy Changes
	During the first quarter of fiscal 2015, the Company changed its accounting policy for the recognition of actuarial gains and losses for its defined benefit pension and other post-retirement benefit plans and the calculation of expected return on pension plan assets. Historically, the Company recognized actuarial gains and losses in excess of 10% of the greater of the market-related value of plan assets or the plans’ projected benefit obligations (the “corridor”) as a component of accumulated other comprehensive loss in its Consolidated Balance Sheets and, depending on the benefit plan, the Company amortized these gains and losses to earnings either over the remaining average service period for the active participants or over the average remaining life expectancy of the inactive participants. Additionally, for the Company’s U.S. plans and the Australian plan, the Company previously used a calculated value for the market-related valuation of pension plan assets, reflecting changes in the fair value of plan assets over a three-year and a one-year period, respectively.
	Under the Company’s new accounting policies, the Company recognizes changes in actuarial gains and losses and the changes in fair value of plan assets in earnings at the time of plan remeasurement, annually during the fourth quarter of each year, or if there is an interim remeasurement, as a component of net periodic (benefit)/cost (and the Company no longer applies a corridor and, therefore, no longer defers any gains or losses). The new accounting policies result in the changes in actuarial gains and losses and the changes in fair value of plan assets being recognized in earnings in the year they occur, rather than amortized over time, and therefore recognized earlier than under the Company’s previous methods of accounting. The Company believes the new pension accounting policies are preferable as they recognize the effects of plan investment performance, interest rate changes, and changes in actuarial assumptions as a component of earnings in the year in which they occur rather than amortized over time, and additionally, conform all plans to a consistent policy for determining market-related value of plan assets. These changes have been reported through retrospective application of the new accounting methods to all periods presented. The remaining components of pension/post-retirement expense, primarily current period service and interest costs and expected return on plan assets, will continue to be recorded on a quarterly basis.
	In addition to the above mentioned accounting policy changes, the Company also changed the way in which it allocates the elements of net periodic pension (benefit) cost to its reportable segments to be aligned with changes in how the Company's chief operating decision maker evaluates segment performance. Historically, total net periodic pension (benefit) cost, including the amortization of deferred actuarial losses/(gains) and changes in fair value of plan assets, were reported within operating income, as defined by the Company, and fully allocated to reportable segments. Under the new allocation approach, net actuarial gains and losses as well as settlement gain and losses components of the net periodic pension (benefit) cost are excluded entirely from the Company’s definition of operating income and not allocated to the reportable segments. All of the other elements of net periodic pension (benefit)/cost, excluding actuarial gains and losses and settlement gains and losses, will continue to be included within operating income of the Company’s reportable segments. The Company has applied the change in the allocation approach retrospectively, adjusting segment reporting for all prior periods presented (see Note 20).
	The following tables present the effects of applying the change in the pension accounting policies, on select line items of the accompanying fiscal 2015 Consolidated Financial Statements:
	Impact on Consolidated Statements of Operations
		Twelve months ended April 3, 2015
		Previous accounting methods			As Reported			Impact of change in accounting method
	(Amounts in millions, except per-share amounts)							Increase/(Decrease)
	Costs of services	$	9,084		$	9,534		$	450
	Selling, general and administrative expenses	1,271			1,340			69
	Income (loss) from continuing operations, before taxes	243			(276		)	(519		)
	Income tax benefit	(164		)	(312		)	(148		)
	Income from continuing operations	407			36			(371		)
	Net income	378			7			(371		)
	Net income attributable to noncontrolling interest, net of tax	13			15			2
	Net income (loss) attributable to CSC common stockholders	365			(8		)	(373		)
	Basic EPS - Continuing operations	$	2.76		$	0.15		$	(2.61	)
	Diluted EPS - Continuing operations	$	2.7		$	0.15		$	(2.55	)
	Impact on Consolidated Statements of Comprehensive (Loss) Income
		Twelve months ended April 3, 2015
		Previous accounting methods			As Reported			Impact of change in accounting method
	(Amounts in millions)							Increase/(Decrease)
	Net income (loss)	$	378		$	7		$	(371	)
	Foreign currency translation adjustments	(207		)	(310		)	(103		)
	Net actuarial gain	(639		)	—			639
	Amortization of prior service (cost)	(18		)	(16		)	2
	Amortization of net actuarial gain	159			—			(159		)
	Foreign currency exchange gain (loss)	8			—			(8		)
	Pension and other post-retirement benefit plans, net of taxes	(432		)	42			474
	Other comprehensive loss, net of taxes	(641		)	(270		)	371
	Comprehensive income attributable to noncontrolling interest	13			15			2
	Comprehensive income (loss) attributable to CSC common stockholders	(276		)	(278		)	(2		)
	Impact on Consolidated Balance Sheets
		As of April 3, 2015
		Previous accounting methods			As Reported			Impact of change in accounting method
	(Amounts in millions)							Increase/(Decrease)
	Earnings retained for use in business	$	2,475		$	912		$	(1,563	)
	Accumulated other comprehensive (loss) income	(1,539		)	21			1,560
	Noncontrolling interest in subsidiaries	25			28			3
	Impact on Consolidated Statements of Cash Flows
		Twelve months ended April 3, 2015
		Previous accounting methods			As Reported			Impact of change in accounting method
	(Amounts in millions)							Increase/(Decrease)
	Net income (loss)	$	378		$	7		$	(371	)
	Pension & OPEB actuarial & settlement losses (gains)	—			782			782
	Deferred taxes	(301		)	(449		)	(148		)
	Increase (decrease) in accounts payable and accrued expenses	(86		)	(335		)	(249		)
	Increase (decrease) in income taxes payable and income tax liability	(112		)	(23		)	89
	Other operating activities, net	119			16			(103		)

Settlement_of_SEC_Investigatio

Settlement of SEC Investigation (Notes)	12 Months Ended
	Apr. 03, 2015
Commitments and Contingencies Disclosure [Abstract]
Settlement of SEC Investigation	Settlement of SEC Investigation
	As previously disclosed, on January 28, 2011, the Company was notified by the Division of Enforcement of the SEC that it had commenced a formal civil investigation. That investigation covered a range of matters as previously disclosed by the Company, including the Company’s prior use in fiscal years 2009-2012 of the terms of ongoing contract negotiations with the U.K. National Health Service (the NHS) in developing its assumptions and judgments with respect to the margin used in recognizing profit under the percentage of completion accounting method and in evaluating the recoverability of NHS contract assets, as well as the Company’s prior disclosures concerning such matters. On May 2, 2011, the Audit Committee commenced an independent investigation and, in August 2012, determined in that its independent investigation was complete. The Audit Committee instructed its independent counsel to cooperate with the SEC's Division of Enforcement by completing production of documents and providing any further information requested by the SEC's Division of Enforcement.
	As a result of findings by the Audit Committee’s independent investigation, the Company has previously acknowledged certain historic errors and irregularities relating to accounting entries arising from the Nordics region, Australia, and the Company’s contractual relationship with the NHS, self-reported these errors and irregularities to the SEC’s Division of Enforcement, and made out of period adjustments to its financial statements as reported in its past filings. In addition, as previously disclosed, certain personnel in certain foreign operations were reprimanded, suspended, terminated and/or resigned and additional controls were implemented. Based on recommendations from the Audit Committee’s independent investigation and discussions with the SEC's staff concerning the SEC's investigation, the Company also instituted comprehensive enhancements beginning in 2011 to its compliance, financial and disclosure controls, and to the function of internal audit. In doing so, the Company made significant changes to prevent the type of misconduct identified by the Audit Committee’s independent investigation from recurring.  The Company also previously took significant steps to enhance its compliance culture and to remediate any deficiencies.
	During the third quarter of fiscal 2015, the Company reached an understanding with the staff of the SEC regarding a settlement of a formal civil investigation by the SEC that commenced on January 28, 2011 and covered a range of matters, as previously disclosed, including certain of the Company’s prior disclosures and accounting determinations. As part of the Company’s understanding with the staff of the SEC regarding terms of the settlement, the Company agreed to pay a penalty of $190 million and to implement a review of its compliance policies through an independent compliance consultant. The Company recorded a pre-tax charge of $197 million for the penalty and related expenses in fiscal 2015.
	During the first quarter of fiscal 2016, the agreed-upon settlement with the SEC was formally approved by the SEC and became effective on June 5, 2015 and the Company has agreed, in addition to the payment of the fine and the engagement of the compliance consultant referenced above, to cease and desist from further violations of the anti-fraud, reporting, and books-and-records provisions of the U.S. securities laws. As part of the settlement, the Company has neither admitted nor denied the SEC’s allegations concerning such matters. Further, as part of the settlement, on June 5, 2015, the Company filed its Form 10-K/A in respect of its fiscal year ended March 28, 2014 in order to restate its financial statements for fiscal 2012 and its summary financial results for fiscal 2011 and 2010 reflected in the five year financial data table, all as previously set forth in the Company’s originally filed Form 10-K for its 2014 fiscal year. The restatement had no impact on the Company’s Consolidated Balance Sheets, Statements of Operations, Statements of Comprehensive Income (Loss), Statements of Cash Flows and Statements of Changes in Equity for fiscal 2013 or fiscal 2014 or on its financial statements for fiscal 2015.
	Commitments and Contingencies
	Commitments
	The Company has operating leases for the use of certain real estate and equipment. Substantially all operating leases are non-cancelable or cancelable only by the payment of penalties. All lease payments are based on the lapse of time but include, in some cases, payments for insurance, maintenance and property taxes. There are no purchase options on operating leases at favorable terms, but most real estate leases have one or more renewal options. Certain leases on real estate are subject to annual escalations for increases in utilities and property taxes. Lease rental expense amounted to $209 million, $280 million, and $319 million, for the years ended April 3, 2015, March 28, 2014, and March 29, 2013, respectively. In addition, the Company also has $22 million of sublease income to be received through fiscal 2020.
	Minimum fixed rentals required for the next five years and thereafter under operating leases in effect at April 3, 2015, are as follows:
	Fiscal Year
	(Amounts in millions)	Real Estate		Equipment
	2016	$	134	$	26
	2017	111		13
	2018	71		4
	2019	50		2
	2020	33		—
	Thereafter	25		—
		$	424	$	45
	The Company has signed long-term purchase agreements with certain software, hardware, telecommunication and other service providers to obtain favorable pricing and terms for services and products that are necessary for the operations of business activities. Under the terms of these agreements, the Company is contractually committed to purchase specified minimums over periods ranging from one to six years. If the Company does not meet the specified minimums, the Company would have an obligation to pay the service provider all or a portion of the shortfall. Minimum purchase commitments are $331 million in fiscal 2016, $308 million in fiscal 2017, $178 million in fiscal 2018, $8 million in fiscal 2019, $8 million in fiscal 2020, and $7 million thereafter.
	In the normal course of business, the Company may provide certain clients, principally governmental entities, with financial performance guarantees, which are generally backed by stand-by letters of credit or surety bonds. In general, the Company would only be liable for the amounts of these guarantees in the event that nonperformance by the Company permits termination of the related contract by the Company’s client. As of April 3, 2015, the Company had $81 million of outstanding letters of credit and $28 million of surety bonds relating to these performance guarantees. The Company believes it is in compliance with its performance obligations under all service contracts for which there is a financial performance guarantee, and the ultimate liability, if any, incurred in connection with these guarantees will not have a material adverse effect on its consolidated results of operations or financial position.
	The Company also uses stand-by letters of credit, in lieu of cash, to support various risk management insurance policies. These letters of credit represent a contingent liability and the Company would only be liable if it defaults on its payment obligations towards these policies. As of April 3, 2015, the Company had $42 million of outstanding stand-by letters of credit. Generally, such guarantees have a one-year term and are renewed annually.
	The following table summarizes the expiration of the Company’s financial guarantees and stand-by letters of credit outstanding as of April 3, 2015:
	(Amounts in millions)	Fiscal 2016		Fiscal 2017		Fiscal 2018 and thereafter		Total
	Surety bonds	$	28	$	—	$	—	$	28
	Letters of credit	47		2		32		81
	Stand-by letters of credit	39		—		3		42
	Total	$	114	$	2	$	35	$	151
	The Company generally indemnifies licensees of its proprietary software products against claims brought by third parties alleging infringement of their intellectual property rights (including rights in patents (with or without geographic limitations), copyright, trademarks and trade secrets). CSC’s indemnification of its licensees relates to costs arising from court awards, negotiated settlements and the related legal and internal costs of those licensees. The Company maintains the right, at its own costs, to modify or replace software in order to eliminate any infringement. Historically, CSC has not incurred any significant costs related to licensee software indemnification.
	Contingencies
	As previously disclosed, on January 28, 2011, the Company was notified by the Division of Enforcement of the SEC that it had commenced a formal civil investigation. That investigation covered a range of matters as previously disclosed by the Company, including certain of the Company’s prior disclosures and accounting determinations. During the first quarter of fiscal 2016, the Company’s previously agreed upon settlement with the SEC was formally approved by the SEC and became effective on June 5, 2015. For additional information, see Note 2.
	On March 1, 2012, the Company was competitively awarded the Maryland Medicaid Enterprise Restructuring Project (“MERP”) contract by the State of Maryland (the State) to modernize the Medicaid Management Information System ("MMIS"), a database of Medicaid recipients and providers used to manage Medicaid reimbursement claims. The MERP contract is predominately fixed price. Also, since awarded, federal government-mandated Medicaid information technology standards have been in considerable flux. The State has directed the Company to include additional functionality in the design to incorporate new federal mandates and guidance promulgated after the base scope of the Contract was finalized. Further, the State has declined to approve contract modifications to compensate the Company for the additional work.
	As a result of the State’s refusal to amend the MERP contract and equitably adjust the compensation to be paid to the Company and, in accordance with prescribed State statutes and regulations, the Company timely filed a certified contract claim with the State in the total estimated amount of approximately $61 million on September 27, 2013 (Contract Claim #1). On February 14, 2014, the Company filed Contract Claim #1A, which amends Contract Claim #1, to a claim of approximately $34 million. The Company believes it has valid and reasonable factual and legal bases for Contract Claims #1 and 1A and that the circumstances that have led or will lead to the Company’s additional costs set forth in Contract Claims #1 and 1A were unforeseen as of the operative proposal submission dates and are not the result of deficiencies in CSC’s performance. However, the Company’s position is subject to the ongoing evaluation of new facts and information which may come to the Company’s attention should an appeal of the State's denial of Contract Claims #1 and 1A be litigated before the Maryland State Board of Contract Appeals (the State Board).
	On February 19, 2014, the State provided a recommended decision denying Contract Claims #1 and 1A to the Company. The February 19, 2014 recommended decision was not a final agency determination on the claims. On April 29, 2014, the State provided a final decision, dated April 25, 2014, denying the claims to the Company. On May 28, 2014, the
	Company filed a Notice of Appeal with the State Board, which has exclusive initial jurisdiction of State contract claims concerning breach, performance, modification, or termination of contracts procured under Title II of Maryland's General Procurement Law. The appeal is currently pending before the State Board.
	On August 22, 2014, the State unilaterally suspended performance under the Contract for 90 days. On September 12, 2014, the State modified its August 22nd suspension of the Contract and authorized CSC, during the remainder of the 90-day suspension, to assign up to nine full-time-equivalent staff to perform various analyses of cost and schedule. On November 20, 2014, the State sent a letter extending the Suspension until January 5, 2015, and on January 2, 2015, the State again extended the Suspension until February 20, 2015.
	As the result of the 90-day suspension, as extended, and other actions and inactions by the State in performance of its obligations under and management of the Contract, the Company filed a second set of Claims with the State Board (Claims #2A-D). Claim #2A, in the amount of $77 million, asserts that the Company's contractual undertaking did not include an agreement to receive reduced and delayed payments, and the State's unilateral imposition of such reductions and delays, together with the other factors result in a material change to the Contract entitling the Company to compensation for all costs incurred to date, including all liabilities incurred, and fee, as well as expected profit under the full contract. Alternatively, Claim #2B, in the amount of $65 million, asserts that the Maryland General Assembly's reduction to the appropriations for the MERP Project for fiscal 2015 effectively cancels the MERP Contract, entitling the Company to recover all costs incurred to date including all liabilities incurred, and a reasonable allowance for profit on costs and liabilities. Similarly, Claims #2C, also in the amount of $65 million, asserts that the State's actions, inactions, and decisions amount to a constructive termination for convenience entitling the Company to recover all costs incurred to date including, all liabilities incurred, and reasonable allowance for profit on costs and liabilities. Claim #2D is a claim for suspension costs during the 90-day period of $3 million, including labor costs, facilities costs and other costs needed to remain ready to re-start program. Due to the new claims, management assessed the adequacy of contract reserves and concluded that such reserves were adequate. Since April 2015, CSC and the State have been in negotiations, including the matters in litigation before the State Board, and the contract has been extended to accommodate those discussions.
	On October 27, 2014, the United States District Court for the Southern District of New York unsealed a qui tam complaint that had been filed under seal over two years prior in a case entitled United States of America and State of New York ex rel. Vincent Forcier v. Computer Sciences Corporation and The City of New York, Case No. 1:12-cv-01750-DAB. The original complaint was brought by Vincent Forcier, a former employee of Computer Sciences Corporation, as a private party qui tam relator on behalf of the United States and the State of New York. The relator’s amended complaint, dated November 15, 2012, which remained under seal until October 27, 2014, alleged civil violations of the federal False Claims Act, 31 U.S.C. § 3729 et seq., and New York State’s False Claims Act, NY. Finance L, Art. 13, § 187 et seq., arising out of certain coding methods employed with respect to claims submitted by the Company to Medicaid for reimbursements as fiscal agent on behalf of its client, New York City’s Early Intervention Program (EIP). EIP is a federal program promulgated by the Individuals with Disabilities in Education Act, 20 U.S.C. § 1401 et seq. (IDEA), that provides early intervention services for infants and toddlers who have, or are likely to have, developmental delays.
	Prior to the unsealing of the complaint on October 27, 2014, the United States Attorney’s Office for the Southern District of New York investigated the allegations in the qui tam relator’s complaint. That investigation included requests for information to the Company concerning the Company’s databases, software programs, and related documents regarding EIP claims submitted by the Company on behalf of New York City. The Company produced documents and information that the government requested and cooperated fully with the government’s investigation regarding this matter at all times. In addition, the Company conducted its own investigation of the matter, and openly shared its findings and worked constructively with all parties to resolve the matter. At the conclusion of its investigation, the Company concluded that it had not violated the law in any respect.
	On October 27, 2014, the United States Attorney’s Office for the Southern District of New York and the Attorney General for the State of New York filed complaints-in-intervention on behalf of the United States and the State of New York, respectively. The complaints allege that, from 2008 to 2012, the Company and New York City used the automatic defaulting capabilities of a computerized billing system that the Company developed for New York City’s EIP in order to orchestrate a billing fraud against Medicaid. The New York Attorney General’s complaint also alleges that the Company did not comply with Medicaid requirements regarding submission of claims to private insurance and failed to reimburse Medicaid in certain instances where insurance had paid a portion of the claim. The lawsuits seek damages under the False Claims Act and common law theories in an amount equal to three times the sum of an unspecified amount of damages the United States and New York State allegedly sustained, plus civil penalties together with attorneys’ fees and costs. The Company believes that the allegations are without merit and intends to vigorously defend itself.
	On May 12, 2015, the Company and its wholly owned subsidiary, ServiceMesh Inc. (SMI), filed a civil complaint in the Court of Chancery of the State of Delaware against Eric Pulier (C.A. No. 11011-VCP). The Company acquired SMI on November 15, 2013. The purchase consideration included a cash payment at closing, as well as additional contingent consideration based on a contractually defined multiple of SMI’s revenues during a specified period ending January 31, 2014 (the Earnout Payment), all as set forth in the purchase agreement governing the acquisition. Before the acquisition, Mr. Pulier was the chief executive officer, chairman and one of the largest equity holders of SMI. Following the acquisition, Mr. Pulier became employed by the Company, at which time he executed a retention agreement pursuant to which he received a grant of restricted stock units of the Company and agreed to be bound by the Company’s rules and policies, including the Company’s Code of Business Conduct.
	In March 2015, the Company became aware of, and began its own investigation into the circumstances surrounding, the arrests of two former employees of the Commonwealth Bank of Australia Ltd. (CBA) in connection with payments allegedly received by them, either directly or indirectly, from Mr. Pulier. SMI and CBA had entered into several contracts with each other, including contracts that contributed to the Earnout Payment. In April 2015, the Company was contacted by the Australian Federal Police regarding the alleged payments. The Company is cooperating with and assisting the Australian authorities in their investigation of this matter.
	The Company and SMI’s complaint against Mr. Pulier asserts claims for (i) breach of the purchase agreement, (ii) breach of the implied covenant of good faith and fair dealing in the purchase agreement, (iii) fraud, (iv) fraud by omission, (v) breach of his retention agreement, (vi) breach of the implied covenant of good faith and fair dealing in his retention agreement and (vii) breach of fiduciary duty. The complaint seeks recovery of payments made to Mr. Pulier under the purchase agreement, the value of Mr. Pulier’s vested restricted stock units of the Company granted to him under his retention agreement and the full amount of the Earnout Payment, which was approximately $98 million. Mr. Pulier filed a motion to dismiss the complaint on May 28, 2015, but has not yet filed an opening brief in support of such motion. The Company also has asserted claims for indemnification related to this matter under the purchase agreement. The Company’s investigation of this matter is ongoing.
	Publicity surrounding any of the foregoing matters could have an adverse impact on the Company’s reputation, financial condition, results of operations or cash flows. The Company is unable to estimate with confidence or certainty any possible loss or range of loss associated with these matters at this time.
	In addition to the matters noted above, the Company is currently party to a number of disputes which involve or may involve litigation. The Company accrues a liability when management believes that it is both probable that a liability has been incurred and the amount of loss can be reasonably estimated under ASC 450. The Company believes it has appropriately recognized liabilities for any such matters. Regarding other matters that may involve actual or threatened disputes or litigation, the Company, in accordance with the applicable reporting requirements, provides disclosure of such matters for which the likelihood of material loss is at least reasonably possible.
	The Company also considered the requirements regarding estimates used in the disclosure of contingencies under ASC Subtopic 275-10, Risks and Uncertainties. Based on that guidance, the Company determined that supplemental accrual and disclosure was not required for a change in estimate that involve contingencies because the Company determined that it was not reasonably possible that a change in estimate will occur in the near term. The Company reviews contingencies during each interim period and adjusts its accruals to reflect the impact of negotiations, settlements, rulings, advice of legal counsel, and other information and events pertaining to a particular case.

Acquisitions

Acquisitions	12 Months Ended
	Apr. 03, 2015
Acquisitions and Divestitures [Abstract]
Acquisitions	Acquisitions
	Fiscal 2015 Acquisitions
	During fiscal 2015, CSC's NPS segment acquired two small privately-held companies for an aggregate cash consideration of $49 million. The acquisitions enhance CSC's cyber security, systems engineering, and software development service offerings to the federal intelligence sector, and enhances CSC's ability to provide cloud services under the Federal Risk and Authorization Management Program (FedRAMP) to federal, state and local governments.
	The purchase price for these acquisitions has been preliminarily allocated to assets acquired and liabilities assumed based on their estimated fair values at the date of acquisition: $5 million to current and long-term assets, $9 million to a customer-related intangible asset, $10 million to current liabilities and other long-term liabilities, and $45 million to goodwill. All of the acquired goodwill is tax deductible. The allocation of purchase prices are preliminary and subject to the final net working capital adjustment and additional information related to the liabilities that existed as of the acquisition date. The useful life of the customer related intangible is 15 years.
	The results of the acquired entities are included in the Company's consolidated financial statements from the date of acquisition, within its NPS segment. For the fiscal year ended April 3, 2015, the two acquisitions, in aggregate, contributed revenues of $18 million and operating income of $1 million.
	Pro forma financial information for the fiscal 2015 acquisitions is not presented as the effects of the acquisitions are neither individually nor in the aggregate material to CSC's consolidated results.
	Fiscal 2014 Acquisitions
	ServiceMesh Acquisition
	On November 15, 2013, CSC acquired ServiceMesh Inc. (SMI), a privately-held cloud services management company, headquartered in Santa Monica, California, with operations in the United States, Australia and the United Kingdom, for total purchase consideration of $282 million. The acquisition enhances CSC's ability to help its clients migrate their applications into cloud computing environments and to automate the deployment and management of enterprise applications and platforms across private, public and hybrid cloud environments.
	The purchase consideration included: 1) cash of $163 million paid at closing to and on behalf of the SMI shareholders, including $10 million paid to retire SMI's debt and 2) additional consideration of $119 million contingent on the achievement of contractually agreed revenue targets. The Company incurred transaction costs of $4 million associated with this acquisition, which are included within selling, general and administrative expenses. The acquisition was funded from CSC's existing cash balances.
	The amount of contingent consideration was based on a contractually defined multiple of SMI’s revenues during a specified period ending January 31, 2014. The Company determined the fair value of the contingent consideration payable using a probability-weighted approach, which at the end of the third quarter of fiscal 2014 was preliminarily estimated to be $137 million, representing the maximum amount of contingent consideration payable. During the fourth quarter of fiscal 2014, the Company reduced the fair value of the contingent consideration payable and goodwill by $18 million, based on additional facts and circumstances that existed as of the acquisition date but which were not known until the fourth quarter of fiscal 2014. These facts, had they been known, would have reduced the Company's original acquisition-date estimate of the fair value of contingent consideration to $119 million.
	After the expiration of the contractual period, the final amount of the contingent consideration payable was determined to be $98 million, which was paid during the fourth quarter of fiscal 2014. The difference of $21 million, between the revised fair value of contingent consideration liability of $119 million and the actual amount paid of $98 million, was primarily due to the deferral of revenues related to certain software license sales to periods beyond the specified earn-out measurement period. This difference of $21 million was recorded as a reduction to selling, general and administrative expenses during the fourth quarter of fiscal 2014.
	The results of SMI are included in the Company's consolidated financial statements from the date of acquisition, within its GIS segment. For the fiscal year ended March 28, 2014, SMI contributed revenues of $18 million, and operating income of $17 million, primarily due to the $21 million adjustment described above, partially offset by $4 million of amortization of the acquired intangibles.
	The allocation of the purchase consideration to the assets acquired and liabilities assumed, including the fourth quarter of fiscal 2014 adjustments to the estimated fair value of contingent consideration, is presented below:
	(Amounts in millions)		Estimated Fair Value
	Accounts receivable and other current assets		$	3
	Deferred tax assets		31
	Intangible asset - developed technology		94
	Intangible assets - customer relationships and trade names		10
	Property and equipment and other non-current assets		2
	Deferred revenue and other current liabilities		(4		)
	Deferred tax liabilities		(38		)
	Total identifiable net assets acquired		98
	Goodwill		184
	Total purchase consideration		$	282
	As of the acquisition date, the fair value of trade receivables approximated book value and was considered fully recoverable.
	The amortizable lives associated with the intangible assets acquired are as follows:
	Description	Estimated Useful Lives (Years)
	Developed technology	9
	Customer relationships	3
	Trade names	6-Apr
	The goodwill recognized in the acquisition is attributable to the intellectual capital, the acquired assembled work force, and expected cost synergies, none of which qualify for recognition as a separate intangible asset. The goodwill arising from the acquisition was allocated to the Company's reportable segments based on the relative fair value of the expected incremental cash flows that the acquisition was expected to provide to each reporting unit within the Company's reportable segments. Goodwill was allocated as follows: GBS: $28 million, GIS: $120 million, and NPS: $36 million. The goodwill is not deductible for tax purposes.
	In connection with the SMI acquisition, the Company granted to certain SMI employees restricted stock units with a grant-date fair value of $41 million. These awards generally vest over a three-year period, associated with the continuing employment of the SMI employees, beginning from the date of acquisition, and are recorded as compensation expense ratably over the three-year period.
	Infochimps Acquisition
	On August 5, 2013, CSC acquired Infochimps, Inc. (Infochimps), a privately held company, in an all-cash transaction for $27 million. The acquisition complements CSC’s existing Big Data business by providing a flexible, scalable, platform-as-a-service offering. The purchase price has been allocated to assets acquired and liabilities assumed based on their estimated fair values at the date of acquisition: $2 million to current and other long-term assets, $2 million to current and long-term liabilities, and $27 million to goodwill. As of the acquisition date, the fair value of trade receivables approximated book value and was considered fully recoverable. The goodwill is associated with the Company's GBS segment and is not tax-deductible.
	Pro forma financial information for the fiscal 2014 acquisitions was not presented as the effects of the acquisitions were neither individually nor in the aggregate material to CSC's consolidated results.
	Fiscal 2013 Acquisition
	In the second quarter of fiscal 2013, CSC acquired a privately-held entity for $35 million in an all-cash transaction. The entity was acquired to enhance CSC's capabilities in Big Data processing and analytics. The purchase price was allocated to assets acquired and liabilities assumed based on their estimated fair values at the acquisition date: $4 million to current assets, $8 million to acquired intangible assets, $2 million to liabilities, and $25 million to goodwill. As of the acquisition date, the fair value of trade receivables approximated book value and was considered fully recoverable. The goodwill is associated with the NPS segment and is tax deductible. The pro forma financial information for this acquisition is not presented because the effects of this acquisition were not material to CSC’s consolidated results.

Divestitures

Divestitures	12 Months Ended
	Apr. 03, 2015
Discontinued operations [Abstract]
Divestitures	Divestitures
	During fiscal 2015, 2014, and 2013, the Company divested certain non-core businesses as a part of its service portfolio optimization initiative to focus on next-generation technology services. Certain of the divestitures met the criteria for discontinued operations presentation, and their historical results have been presented as discontinued operations in the Company's Consolidated Statement of Operations.
	Discontinued Operations
	Fiscal 2015 Divestiture
	On July 31, 2014, CSC completed the sale of a German software business to a strategic investor for cash consideration of $3 million. This divestiture, which had been included in the GBS segment's healthcare group, resulted in a pre-tax loss of $22 million, representing the excess of the carrying value of the net assets of the business and transaction costs over the net proceeds. The divested assets and liabilities included: current assets of $54 million (including $21 million of cash); noncurrent assets of $25 million; current liabilities of $33 million; and noncurrent liabilities of $23 million. As of March 28, 2014, the assets and liabilities classified as held-for-sale for this business were: current assets of $25 million, property and equipment and other long-term assets of $31 million, current liabilities of $31 million, and long-term liabilities of $25 million.
	The historical results of this business have been presented as discontinued operations in the Company's Consolidated Statement of Operations.
	Fiscal 2014 Divestitures
	On July 19, 2013, CSC completed the sale of its base operations, aviation and ranges services business unit, the Applied Technology Division (ATD) within its NPS Segment, to a strategic investor for cash consideration of $178 million, plus a net working capital adjustment receivable of $6 million, $3 million of which was collected in the first quarter of fiscal 2015. The ATD divestiture resulted in a pre-tax gain of $77 million. During the first quarter of fiscal 2015, NPS recorded a $1 million final net working capital adjustment, which reduced the total gain on sale.
	On May 21, 2013, CSC completed the divestiture of its flood insurance-related business process outsourcing practice (flood insurance BPO), within the GBS segment, to a financial investor for cash consideration of $43 million plus a net working capital adjustment receivable of $4 million. The divestiture resulted in a pre-tax gain of $25 million. During the fourth quarter of fiscal 2014, the Company received cash of $3 million, representing the final net working capital adjustment, and reduced the gain on disposal by $1 million. During the first quarter of fiscal 2015, CSC received an additional $2 million as a purchase price adjustment, which was recorded as an additional gain on the sale of this divestiture.
	The historical results of these businesses have been presented as discontinued operations in the Company's Consolidated Statement of Operations.
	Fiscal 2013 Divestitures
	During fiscal 2013, CSC completed the sales of three businesses within its GBS Segment: the U.S.-based credit services business, an enterprise systems integration business with operations in Malaysia and Singapore, and the Italian consulting and system integration business.
	For the sale of its U.S.-based credit services business, the Company received cash proceeds of $1,003 million, of which $2 million was received in the first quarter of fiscal 2014 for a subsequent net working capital adjustment. For the sale of its enterprise system integration business, the Company received $90 million in cash and an additional $13 million for subsequent working capital adjustments. For the disposal of its Italian consulting and system integration business, the Company paid $35 million (plus $8 million of cash included in the divested entity's net assets) and received $6 million from the buyer, during the second quarter of fiscal 2014, for a net working capital adjustment.
	These three divestitures resulted in a total pre-tax gain of $769 million (after-tax gain of $417 million), representing the excess of the net proceeds over the carrying value of the net assets of the divested businesses and transaction costs of $11 million. The fiscal 2013 divested assets and liabilities included current assets of $129 million, property and equipment and other long-lived assets of $11 million, goodwill of $241 million, and liabilities of $85 million.
	The historical results of these businesses have been presented as discontinued operations in the Company's Consolidated Statement of Operations.
	Following is the summary of the results of the discontinued operations:
		Twelve Months Ended
	(Amounts in millions)	April 3, 2015			March 28, 2014		March 29, 2013
	Operations
	Revenue	$	10		$	235	$	1,193
	(Loss) income from discontinued operations, before taxes	(11		)	9		116
	Income tax expense	—			7		51
	Net (loss) income from discontinued operations	(11		)	2		65
	Disposal
	(Loss) gain on disposition	$	(21	)	$	101	$	769
	Income tax (benefit) expense	(3		)	15		352
	(Loss) gain on disposition, net of taxes	(18		)	86		417
	(Loss) income from discontinued operations, net of taxes	$	(29	)	$	88	$	482
	The tax expense on the gain on sale of ATD was minimal primarily due to the difference between the book and tax basis of the assets sold. The primary difference between the book and tax gains on the sale of the flood insurance BPO business was the write-off of approximately $12 million of goodwill, the majority of which was not deductible for tax purposes.
	In connection with the sale of the U.S.-based credit services business, the primary difference between the book and tax gain was the write-off of approximately $241 million of goodwill, a majority of which was not deductible for tax purposes. The income tax expense recorded included an allocation of a deferred tax charge related to such goodwill. In addition, a significant tax benefit was realized on the divestment of the Italian consulting and system integration business. The gain from the sale of the enterprise systems integration business with operations in Malaysia and Singapore was exempt from income tax.
	Other Divestitures
	During the fourth quarter of fiscal 2013, the Company sold Paxus, its Australian IT staffing business unit, included within the Company's GBS Segment. This divestiture did not qualify to be presented as discontinued operations due to CSC's significant continuing business relationship with the divested entity. The total consideration for this divestiture was $79 million, of which $63 million was received in cash and $16 million was recorded as a receivable. During the first quarter of fiscal 2014, CSC collected cash of $10 million and offset the remaining $6 million against a current payable due to the buyer to settle this consideration receivable. The sale of Paxus resulted in a pre-tax gain of $38 million, representing the excess of the proceeds over the carrying value of the net assets divested, net of transaction costs of $3 million. The divested assets and liabilities included current assets of $41 million, property and equipment and other long-lived assets of $2 million, and liabilities of $5 million. The Company recognized no tax expense or benefit on the gain on sale because it had sufficient capital losses in its Australian business unit to completely offset the capital gain.

Earnings_Loss_Per_Share

Earnings (Loss) Per Share	12 Months Ended
	Apr. 03, 2015
Earnings Per Share [Abstract]
Earnings (Loss) Per Share	Earnings (Loss) Per Share
	Basic earnings (loss) per common share (EPS) and diluted EPS are calculated as follows:
		Twelve Months Ended
	(Amounts in millions, except per-share data)	April 3, 2015			March 28, 2014		March 29, 2013
	Net (loss) income attributable to CSC common shareholders:
	From continuing operations	$	21		$	859	$	278
	From discontinued operations	(29		)	88		482
		$	(8	)	$	947	$	760
	Common share information:
	Weighted average common shares outstanding for basic EPS	142.557			147.647		154.59
	Dilutive effect of stock options and equity awards	3.223			3.114		0.967
	Shares for diluted earnings (loss) per share	145.78			150.761		155.557
	Earnings (loss) per share – basic and diluted:
	Basic EPS:
	Continuing operations	$	0.15		$	5.81	$	1.8
	Discontinued operations	(0.21		)	0.6		3.12
	Total	$	(0.06	)	$	6.41	$	4.92
	Diluted EPS:
	Continuing operations	$	0.15		$	5.7	$	1.79
	Discontinued operations	(0.20		)	0.58		3.1
	Total	$	(0.05	)	$	6.28	$	4.89
	The computation of diluted earnings (loss) per share excluded stock options and RSUs, whose effect, if included, would have been anti-dilutive. The number of shares related to such stock options were 1,077,891, 4,573,542, and 14,755,024, for the years ended April 3, 2015, March 28, 2014, and March 29, 2013, respectively. The number of shares related to such RSUs were 62,243, 14,953, and 6,131, for the years ended April 3, 2015, March 28, 2014, and March 29, 2013, respectively.
	During the fourth quarter of fiscal 2015, the Company entered into an accelerated share repurchase (ASR) arrangement, with a maturity date in the third quarter of fiscal 2016 (see Note 16). The Company evaluated the ASR arrangement for its potential impact on EPS, and excluded 173,779 shares because their effect would have been anti-dilutive. The Company did not enter into any ASR arrangements during fiscal 2014 and fiscal 2013.

Receivables

Receivables	12 Months Ended
	Apr. 03, 2015
Receivables [Abstract]
Receivables	Receivables
	Receivables consist of the following:
	(Amounts in millions)	April 3, 2015		March 28, 2014
	Billed trade accounts	$	1,224	$	1,564
	Unbilled recoverable amounts under contracts in progress	963		1,036
	Other receivables	182		159
	Total	$	2,369	$	2,759
	Unbilled recoverable amounts under contracts in progress generally become billable upon completion of a specified contract, negotiation of contract modifications, completion of U.S. federal government audit activities, achievement of project milestones or upon acceptance by the customer.
	Unbilled recoverable amounts under contracts in progress resulting from sales, primarily to the U.S. and other governments, which are expected to be collected after fiscal year 2016 totaled $19 million.

Fair_Value

Fair Value	12 Months Ended
	Apr. 03, 2015
Fair Value [Abstract]
Fair Value	Fair Value
	Fair value measurements on a recurring basis
	The following table presents the Company’s assets and liabilities, excluding pension assets (see Note 15), that are measured at fair value on a recurring basis as of April 3, 2015 and March 28, 2014:
		April 3, 2015
				Fair Value Hierarchy
	(Amounts in millions)	Fair Value		Level 1		Level 2		Level 3
	Assets:
	Money market funds and money market deposit accounts	$	344	$	344	$	—	$	—
	Time deposits	411		411		—		—
	Derivative instruments	20		—		20		—
	Total assets	$	775	$	755	$	20	$	—
	Liabilities:
	Derivative instruments	$	5	$	—	$	5	$	—
	Total liabilities	$	5	$	—	$	5	$	—
		March 28, 2014
				Fair Value Hierarchy
	(Amounts in millions)	Fair Value		Level 1		Level 2		Level 3
	Assets:
	Money market funds and money market deposit accounts	$	717	$	717	$	—	$	—
	Time deposits	693		693		—		—
	Derivative instruments	5		—		5		—
	Total assets	$	1,415	$	1,410	$	5	$	—
	Liabilities:
	Derivative instruments	$	4	$	—	$	4	$	—
	Total liabilities	$	4	$	—	$	4	$	—
	The Company's money market funds, money market deposit accounts and time deposits are included in cash and cash equivalents. The balance sheet classifications of the Company's derivative instruments are presented in Note 9. There were no transfers between Level 1 and Level 2 and no transfers into or out of Level 3.
	Derivative instruments include foreign currency forward and option contracts, interest rate swap contracts and total return swaps (see Note 9). The fair value of foreign currency forward contracts represents the estimated amount required to settle the contracts using current market exchange rates, and is based on the month-end foreign currency exchange rates and forward points. The fair value of foreign currency options is estimated based on valuation models that use the original strike price, movement and volatility in foreign currency exchange rates, and length of time to expiration as inputs. The fair value of interest rate swaps is estimated based on valuation models that use interest rate yield curves as inputs. Total return swaps are settled on the last day of every fiscal month. Therefore, there are no such swaps outstanding as of any balance sheet date. The inputs used to estimate the fair value of the Company's derivatives are classified as Level 2.
	Fair value measurements on a non-recurring basis
	Assets and liabilities measured at fair value on a non-recurring basis include goodwill, tangible assets, intangible assets and other contract related long-lived assets. Such assets are reviewed quarterly for impairment indicators. If a triggering event has occurred, the assets are remeasured when the estimated fair value of the corresponding asset or asset group is less than the carrying value. The fair value measurements, in such instances, are based on significant unobservable inputs (Level 3). There were no significant impairments recorded during the fiscal years ended April 3, 2015 and March 28, 2014.
	Financial Instruments not measured at fair value
	The carrying amounts of the Company’s financial instruments with short-term maturities are deemed to approximate their market values. The carrying amount of the Company’s long-term debt, excluding capital leases, was $1,550 million and $1,874 million and the estimated fair value was $1,681 million and $2,057 million as of April 3, 2015, and March 28, 2014, respectively. The fair value of long-term debt is estimated based on the current interest rates offered to the Company for instruments with similar terms and remaining maturities and are classified as Level 2.
	The Company is subject to counterparty risk in connection with its derivative instruments (see Note 9). With respect to its foreign currency derivatives, as of April 3, 2015, there were six counterparties with concentration of credit risk. Based on gross fair value of these foreign currency derivative instruments, the maximum amount of loss that the Company could incur is less than $2 million. With respect to its interest rate swaps, there were three counterparties with concentration of risk and the maximum amount of loss that the Company could incur was $19 million as of April 3, 2015.
	The primary financial instruments other than derivatives (see Note 9) that potentially subject the Company to concentrations of credit risk are accounts receivable. The Company’s customer base includes Fortune 500 companies, the U.S. federal and other governments and other significant, well-known companies operating in North America, Europe and the Pacific Rim. Credit risk with respect to accounts receivable is minimized because of the nature and diversification of the Company’s customer base. Furthermore, the Company continuously reviews its accounts receivable and records provisions for doubtful accounts as needed.
	The Company’s credit risk is also affected by customers in bankruptcy proceedings; however, because most of these proceedings involve business reorganizations rather than liquidations and the nature of the Company’s services are often considered essential to the operational continuity of these customers, the Company is generally able to avoid or mitigate significant adverse financial impact in these cases. As of April 3, 2015, the Company had $13 million of accounts receivable, $9 million of related allowance for doubtful accounts, $1 million of other assets, and $4 million of accounts payable with customers involved in bankruptcy proceedings.

Derivative_Instruments

Derivative Instruments	12 Months Ended
	Apr. 03, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Derivative Instruments
	The following table presents the fair values of derivative instruments included on the Consolidated Balance Sheets as of April 3, 2015 and March 28, 2014:
		Derivative Assets										Derivative Liabilities
	(Amounts in millions)	Balance Sheet line item		As of April 3, 2015				As of March 28, 2014				Balance Sheet line item	As of April 3, 2015			As of March 28, 2014
	Derivatives designated for hedge accounting:
	Interest rate	Other assets		$	18			$	3			Other long-term liabilities	$	—		$	—
	Foreign Currency forward contracts	Prepaid expense and other current assets		$	1			$	—			Accrued expenses and other current liabilities	3			—
	Total fair value of derivatives designated for hedge accounting			$	19			$	3				$	3		$	—
	Derivatives not designated for hedge accounting:
	Foreign Currency forward contracts	Prepaid expense and other current assets		$	1			$	2			Accrued expenses and other current liabilities	$	2		$	4
	Total fair value of derivatives not designated for hedge accounting			$	1			$	2				$	2		$	4
	Derivative instruments designated as hedges
	Fair value hedges
	Pursuant to its interest rate and risk management strategy, during the second quarter of fiscal 2014, the Company entered into multiple interest rate swap transactions to hedge the fair value of $275 million of the Company's 4.45% term notes, due 2022, which effectively converted the debt into floating interest rate debt. For accounting purposes, these interest rate swap transactions were designated as fair value hedges and qualified for short-cut method of hedge accounting, as defined under ASC 815, “Derivatives and Hedging.” Accordingly, changes in the fair values of the interest rate swaps are reported in earnings and fully offset changes in the fair value of the hedged debt (see Note 14); therefore, no net gain or loss is recognized in the Consolidated Statement of Operations.
	The following table presents the pre-tax gains (losses) related to the fair value hedges and the related hedged items, for the twelve months ended April 3, 2015 and March 28, 2014, respectively:
		Derivative Instrument									Hedged Item
	(Amounts in millions)	Statement of Operations line item	Gain (Loss) for the Twelve Months Ended								Balance Sheet line item		Gain (Loss) for the Twelve Months Ended
			3-Apr-15				28-Mar-14						3-Apr-15			28-Mar-14
	Interest rate swaps	Other Income (Expense)	$	15			$	3			Debt		$	(15	)	$	(3	)
	Cash flow hedges
	During the first quarter of fiscal 2015, the Company designated certain foreign currency forward contracts as cash flow hedges, to reduce risks related to certain Indian Rupee denominated intercompany obligations and forecasted transactions. As of April 3, 2015, the notional amount of foreign currency forward contracts designated as cash flow hedges was $383 million, and the related forecasted transactions extend through March 2017. The Company did not enter into any transactions designated as cash flow hedges in fiscal 2014 and 2013.
	The Company performed an assessment at the inception of the cash flow hedge transactions and determined all critical terms of the hedging instruments and hedged items matched; therefore there is no ineffectiveness to be recorded and all changes in the hedging instruments’ fair value are recorded in accumulated OCI and subsequently reclassified into earnings in the period during which the hedged transactions are recognized in earnings. The Company performs an assessment of critical terms on an on-going basis throughout the hedging period.
	During the year ended April 3, 2015, the Company had no cash flow hedges for which it was probable that the hedged transaction would not occur. As of April 3, 2015, less than $1 million of the existing amount of losses related to the cash flow hedge reported in accumulated OCI is expected to be reclassified into earnings within the next 12 months.
	The following table presents the pre-tax gains (losses) associated with the cash flow hedges, recognized in accumulated OCI, for the twelve months ended April 3, 2015:
	(Amounts in millions)	Gain (Loss) recognized in Accumulated OCI (effective portion) for the Twelve Months Ended				Gain (Loss) reclassified into cost of services from Accumulated OCI (effective portion) for the Twelve Months Ended					Gain (Loss) recognized in Other Income (Expense) (ineffective portion) for the Twelve Months Ended
		3-Apr-15
	Foreign currency forward and option contracts	$	(2	)		$	—				$	—
	Derivatives not designated for hedge accounting
	Total return swaps
	Beginning in the first quarter of fiscal 2015, the Company entered into total return swaps derivative contracts (TRS) to manage exposure to market volatility of the notional investments underlying the Company's deferred compensation obligations. For accounting purposes, these TRS are not designated as hedges, as defined under ASC 815, “Derivatives and Hedging,” and all changes in their fair value and changes in the associated deferred compensation liabilities are recorded in cost of services and selling, general and administrative expenses. The TRS are entered into monthly and are settled on the last day of every fiscal month. The Company did not enter into TRS in fiscal 2014 and 2013.
	Foreign currency derivatives
	The Company manages the exposure to fluctuations in foreign currencies by using short-term foreign currency forward and option contracts to economically hedge certain foreign currency denominated assets and liabilities, including intercompany accounts and loans. For accounting purposes, these foreign currency option and forward contracts are not designated as hedges, as defined under ASC 815, “Derivatives and Hedging,” and all changes in their fair value are reported in current period earnings within the other income (expense) line of the Consolidated Statements of Operations.
	The notional amount of the foreign currency forward contracts outstanding as of April 3, 2015 and March 28, 2014 was $700 million and $816 million, respectively. The notional amount of option contracts outstanding as of April 3, 2015 and March 28, 2014 was $0 million and $81 million, respectively.
	The following table presents the pretax amounts affecting income related to derivatives not designated for hedge accounting for the years ended April 3, 2015, March 28, 2014, and March 29, 2013 respectively:
				Twelve Months Ended
	(Amounts in millions)	Statement of Operations line item		3-Apr-15				28-Mar-14				29-Mar-13
	Total return swaps	Cost of services and Selling, general & administrative expenses		$	8			$	—			$	—
	Foreign currency forwards and options	Other Income (Expense)		(11		)		(15		)		(17		)
	Total			$	(3	)		$	(15	)		$	(17	)
	Other risks
	As discussed further in Note 8, the Company is exposed to the risk of losses in the event of non-performance by the counterparties to its derivative contracts. To mitigate counterparty credit risk, the Company regularly reviews its credit exposure and the creditworthiness of the counterparties. The Company also enters into enforceable master netting arrangements with some of its counterparties. However for financial reporting purposes it is the Company’s policy to not offset derivative assets and liabilities despite the existence of enforceable master netting arrangements with some of its counterparties. As of April 3, 2015, the amount that the Company elected to not offset for derivatives subject to master netting arrangements was approximately $1 million. As of March 28, 2014 there were no amounts that the Company elected to offset. The Company's derivative contracts do not require it to hold or post collateral.

Property_and_Equipment

Property and Equipment	12 Months Ended
	Apr. 03, 2015
Property, Plant and Equipment [Abstract]
Property and Equipment	Property and Equipment
	Property and equipment consisted of the following:
	(Amounts in millions)	April 3, 2015		March 28, 2014
	Property and equipment — gross:
	Land, buildings and leasehold improvements	$	1,107	$	1,226
	Computers and related equipment	3,609		4,051
	Furniture and other equipment	305		346
	Construction in progress	23		28
		5,044		5,651
	Less: accumulated depreciation and amortization	3,461		3,620
	Property and equipment, net	$	1,583	$	2,031
	Depreciation expense for fiscal years 2015, 2014, and 2013 was $606 million, $661 million, and $709 million, respectively.

Intangible_Assets

Intangible Assets	12 Months Ended
	Apr. 03, 2015
Intangible Assets [Abstract]
Intangible Assets	Intangible Assets
	A summary of amortizable intangible assets is as follows:
		As of
		April 3, 2015
	(Amounts in millions)	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
	Outsourcing contract costs	$	802	$	476	$	326
	Software	2,393		1,642		751
	Customer and other intangible assets	476		327		149
	Total intangible assets	$	3,671	$	2,445	$	1,226
		As of
		March 28, 2014
	(Amounts in millions)	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
	Outsourcing contract costs	$	1,465	$	1,038	$	427
	Software	2,330		1,680		650
	Customer and other intangible assets	588		315		273
	Total intangible assets	$	4,383	$	3,033	$	1,350
	Amortization expense for the years ended April 3, 2015, March 28, 2014, and March 29, 2013 was $408 million, $402 million, and $414 million, respectively, including reductions of revenue for amortization of outsourcing contract cost premiums of $27 million, $34 million, and $40 million and for amortization of contract related intangible asset of $10 million, $11 million and $11 million in each of the respective years (see Note 1).
	Estimated amortization related to intangible assets, including amortization of contract cost premium, as of April 3, 2015, for fiscal 2016 through fiscal 2020, is as follows: $330 million, $261 million, $212 million, $176 million, and $138 million, respectively.
	During fiscal 2015, CSC sold certain intangible assets to a third party for total consideration of $53 million of which cash consideration was received of $31 million. As a result, CSC recorded a gain on sale of $53 million as a reduction of cost of sales in its GIS segment. As of April 3, 2015, CSC had $22 million of outstanding receivables related to these sales, which will be paid in quarterly installments.
	Purchased and internally developed software, net of accumulated amortization, consisted of the following:
	(Amounts in millions)	April 3, 2015		March 28, 2014
	Purchased software	$	256	$	287
	Internally developed commercial software	364		308
	Internally developed internal-use software	131		55
	Total	$	751	$	650
	Amortization expense related to purchased software was $143 million, $130 million, and $143 million, for the years ended April 3, 2015, March 28, 2014, and March 29, 2013, respectively. Amortization expense related to internally developed commercial software was $63 million, $56 million, and $53 million, for the years ended April 3, 2015, March 28, 2014, and March 29, 2013, respectively. Amortization expense related to internally developed internal-use software was $6 million, $2 million, and $2 million, for the years ended April 3, 2015, March 28, 2014, and March 29, 2013, respectively.

Goodwill

Goodwill	12 Months Ended
	Apr. 03, 2015
Goodwill [Abstract]
Goodwill	Goodwill
	The following tables summarize the changes in the carrying amount of goodwill, by segment, for the years ended April 3, 2015 and March 28, 2014, respectively.
	(Amounts in millions)	GBS			GIS			NPS			Total
	Goodwill, gross	$	1,381		$	2,260		$	788		$	4,429
	Accumulated impairment losses	(701		)	(2,061		)	—			(2,762		)
	Balance as of March 28, 2014, net	680			199			788			1,667
	Additions	—			—			45			45
	Foreign currency translation	(41		)	—			—			(41		)
	Goodwill, gross	1,340			2,260			833			4,433
	Accumulated impairment losses	(701		)	(2,061		)	—			(2,762		)
	Balance as of April 3, 2015, net	$	639		$	199		$	833		$	1,671
	(Amounts in millions)	GBS			GIS			NPS			Total
	Goodwill, gross	$	1,346		$	2,139		$	793		$	4,278
	Accumulated impairment losses	(701		)	(2,061		)	—			(2,762		)
	Balance as of March 29, 2013, net	645			78			793			1,516
	Additions	55			120			36			211
	Deductions	(12		)	—			(41		)	(53		)
	Foreign currency translation	(8		)	1			—			(7		)
	Goodwill, gross	1,381			2,260			788			4,429
	Accumulated impairment losses	(701		)	(2,061		)	—			(2,762		)
	Balance as of March 28, 2014, net	$	680		$	199		$	788		$	1,667
	The fiscal 2015 additions to goodwill of $45 million were due to the two fiscal 2015 NPS acquisitions. The foreign currency translation amount reflects the impact of currency movements on non-U.S. dollar-denominated goodwill balances.
	The fiscal 2014 additions to goodwill of $211 million were due to the third quarter fiscal 2014 acquisition of ServiceMesh, which resulted in allocation of goodwill to all three reportable segments, and the second quarter fiscal 2014 GBS acquisition of InfoChimps (see Note 4). The reductions in goodwill were due to the first quarter fiscal 2014 divestiture of GBS' flood insurance BPO business and the second quarter fiscal 2014 divestiture of NPS' ATD business (see Note 5). No goodwill was allocated to the GBS software business that was classified as discontinued operations in the second quarter fiscal 2014 (see Note 5). The foreign currency translation amount reflects the impact of currency movements on non-U.S. dollar-denominated goodwill balances.
	Goodwill Impairment Analyses
	As described in Note 1, the Company tests goodwill for impairment on an annual basis, as of the first day of the second fiscal quarter, and between annual tests if an event occurs, or circumstances change, that would more likely than not reduce the fair value of a reporting unit below its carrying amount. Following is a description of the goodwill impairment analyses for each of the fiscal years.
	Fiscal 2015
	As of the beginning of fiscal 2015, the Company reallocated goodwill among certain of its GBS reporting units due to 1) changes in the structure of segment management reporting; and 2) the availability of discrete financial information. Goodwill was reallocated using a relative fair value allocation approach. CSC performed a quantitative and qualitative goodwill impairment assessment for the changed reporting units and determined that there was no indication that goodwill was impaired for those reporting units as of the reallocation date.
	For the Company’s annual goodwill impairment assessment as of July 5, 2014, the Company assessed qualitative factors to determine whether events or circumstances existed that would lead the Company to conclude that it was more likely than not that the fair value of any of its reporting units was below their carrying amounts. The Company determined that, based on its qualitative assessment of such factors for all reporting units, no reporting units met the more-likely-than-not threshold. Accordingly, the Company did not perform further analysis.
	At the end of the fourth quarter of fiscal 2015, the Company assessed whether there were events or changes in circumstances that would more likely than not reduce the fair value of any of its reporting units below its carrying amount and require further analysis. The Company determined that there were no such indicators and, as a result, it was unnecessary to perform an interim impairment test as of April 3, 2015.
	Fiscal 2014
	As of the beginning of the first quarter of fiscal 2014, the Company performed the first step of the traditional two-step goodwill impairment test for all reporting units due to a reallocation of goodwill caused by segment changes impacting the composition of certain reporting units. Based on the results of the first step of the impairment test, the Company concluded that the fair value of each reporting unit significantly exceeded its carrying value and therefore the second step of the goodwill impairment test was not required as of the goodwill reassignment date.
	Fiscal 2013
	In connection with the fiscal 2013 annual impairment assessment, the Company chose to bypass the initial qualitative assessment and proceeded directly to the first step of the traditional two-step impairment test for all reporting units, and concluded that no impairment had occurred. The fair values of all of CSC's reporting units were significantly in excess of their carrying values.

Income_Taxes

Income Taxes	12 Months Ended
	Apr. 03, 2015
Income Taxes [Abstract]
Income Taxes	Income Taxes
	The sources of (loss) income from continuing operations, before income taxes, classified between domestic entities and those entities domiciled outside of the United States, are as follows:
			Twelve Months Ended
	(Amounts in millions)		April 3, 2015				March 28, 2014				March 29, 2013
	Domestic entities		$	(369	)		$	574			$	(113	)
	Entities outside the United States		93				689				348
	Total		$	(276	)		$	1,263			$	235
	The income tax (benefit) expense on income (loss) from continuing operations is comprised of:
			Twelve Months Ended
	(Amounts in millions)		April 3, 2015				March 28, 2014				March 29, 2013
	Current:
	Federal		$	49			$	81			$	(330	)
	State		(10		)		7				(5		)
	Foreign		98				126				174
			137				214				(161		)
	Deferred:
	Federal		(126		)		119				76
	State		(21		)		25				(18		)
	Foreign		(302		)		25				41
			(449		)		169				99
	Total income tax expense (benefit)		$	(312	)		$	383			$	(62	)
	The current (benefit) provision for fiscal years 2015, 2014, and 2013, includes interest and penalties of $1 million, $(9) million, and $10 million, respectively, for uncertain tax positions.
	The major elements contributing to the difference between the U.S. federal statutory tax rate of 35% and the effective tax rate (ETR) for continuing operations are as follows:
			Twelve Months Ended
			April 3, 2015			March 28, 2014			March 29, 2013
	Statutory rate		(35.0	)%		35	%		35	%
	State income tax, net of federal tax		(4.0	)		1.8			(2.6	)
	Change in uncertain tax positions		0.6			2.9			2.4
	Foreign tax rate differential		(127.2	)		2.8			(126.7	)
	Income tax credits		(2.0	)		(0.3	)		(0.1	)
	Valuation allowance		32.6			(11.8	)		175.2
	Change in entity tax status		—			—			(0.7	)
	Loss on sale of securities		—			0.8			(105.4	)
	SEC settlements		26.4			—			—
	Other items, net		(4.4	)		(0.9	)		(3.5	)
	Effective tax rate		(113.0	)%		30.3	%		(26.4	)%
	In fiscal year 2015, the ETR was primarily driven by:
	•	The impact of the non-deductible SEC settlement of $190 million, which decreased the income tax benefit and the ETR by $73 million and 26.4%, respectively.
	•	Local losses on investments in Luxembourg increased the foreign rate differential and increased the ETR by $325 million and by 117.8%, respectively, with an offsetting decrease in the ETR due to an increase in the valuation allowance of the same amount.
	•	Changes in valuation allowances in certain jurisdictions, including a valuation allowance release in the United Kingdom. The total impact of the valuation allowance release increased the income tax benefit and the ETR by $235 million and 85.2%, respectively. There was a net decrease in valuation allowances in fiscal year 2015.
	In fiscal year 2014, the ETR was primarily driven by:
	•	The Company recorded a tax expense of $10 million related to the previous restructuring of an operating subsidiary. This expense increased the ETR by 0.8%.
	•	A net increase in uncertain tax positions across various jurisdictions of $36 million which increased the ETR by 2.9%. The primary drivers of this increase in tax expense were related to various tax issues including transfer pricing and foreign exchange losses.
	•	A decrease in the valuation allowance determined on a tax jurisdictional basis due to a shift in the global mix of income which decreased tax expense and the ETR by $58 million and 4.6%, respectively
	•	Local income on investment recoveries in Luxembourg (i) decreased the valuation allowance and the ETR by $90.6 million and 7.2%, respectively, and (ii) increased the foreign rate differential and ETR by $90.6 million and by 7.2%, respectively.
	In fiscal 2013, the ETR was primarily driven by:
	•	An internal restructuring whereby a significant operating subsidiary was recapitalized. Certain securities issued pursuant to the recapitalization were subsequently sold to a third party. The sale resulted in the recognition of a capital loss of approximately $640 million, which reduced tax expense and the ETR by $248 million and 105.4%, respectively.
	•	A valuation allowance recorded for certain of the Company's German subsidiaries related to net operating losses and other net deferred tax assets. The impact to tax expense and the ETR was an increase of $77 million and 32.8%, respectively.
	•	An increase in the valuation allowance determined on a tax jurisdictional basis due to several factors including: (i) a shift in the global mix of income which increased tax expense and the ETR by $76 million and 32.3%, respectively (ii) capital gains from the sale of certain other assets which decreased tax expense and the ETR by $11.5 million and 4.9%, respectively and (iii) state capital losses and credits not expected to be fully utilized within the carryforward period which increased tax expense and the ETR by $29.6 million and 12.6%, respectively.
	•	Local losses on investment write-downs in Luxembourg (i) increased the valuation allowance and the ETR by $240.5 million and 102.3%, respectively, and (ii) decreased the foreign rate differential and ETR by $240.5 million and 102.3%, respectively.
	For the tax impact of discontinued operations, see Note 5.
	The deferred tax assets (liabilities) are as follows:
	(Amounts in millions)		April 3, 2015				March 28, 2014
	Deferred Tax Assets
	Employee benefits		$	431			$	333
	Tax loss/credit carryforwards		1,083				919
	Accrued interest		24				20
	State taxes		7				10
	Cumulative foreign exchange gain/loss		6				2
	Contract accounting		38				38
	Other assets		80				66
	Total Deferred Tax Assets		1,669				1,388
	Valuation allowance		(958		)		(1,006		)
	Net Deferred Tax Assets		711				382
Deferred Tax Liabilities
Depreciation and amortization		(287		)		(341		)
Investment basis differences		(110		)		(126		)
Other liabilities		(97		)		(112		)
Total Deferred Tax Liabilities		(494		)		(579		)
Total Deferred Tax Assets		$	217			$	(197	)
Income tax related assets are included in the accompanying balance sheet as follows:
(Amounts in millions)		April 3, 2015				March 28, 2014
Current:
Prepaid Expenses and Other Current Assets		$	52			$	11
Income Tax Receivables		107				92
		$	159			$	103
Non-current:
Income Taxes Receivable and Prepaid Taxes		$	109			$	123
Other Deferred tax Assets		375				123
		$	484			$	246
Total		$	643			$	349
Income tax related liabilities are included in the accompanying balance sheet as follows:
(Amounts in millions)		April 3, 2015				March 28, 2014
Current:
Deferred Income Taxes		(39		)		(25		)
Income Taxes Payable		(23		)		(52		)
		(62		)		(77		)
Non-current:
Deferred Taxes		(171		)		(307		)
Non-current Tax Liability for Uncertain Tax Positions		(241		)		(250		)
		(412		)		(557		)
Total		$	(474	)		$	(634	)
In assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized and adjusts the valuation allowance accordingly. In determining whether the deferred tax assets are realizable, the Company considers all available positive and negative evidence, including future reversals of existing taxable temporary differences, taxable income in prior carryback years, projected future taxable income, tax planning strategies and recent financial operations. The valuation allowance decreased by $48 million in fiscal year 2015. This net decrease is primarily due to the following:
•	A decrease in the valuation allowance in the United Kingdom (U.K.) of approximately $264 million, primary related to the release of valuation allowances due to objectively verifiable positive evidence, improved earnings and three years of cumulative profits.
•	An increase in valuation allowance of approximately $325 million in Luxembourg due to significant losses on investments. These losses can only be utilized against changes in the fair market value of investments which cannot be forecasted.
Significant management judgment is required in determining the Company's provision for income taxes, deferred tax assets and liabilities, and any valuation allowance recorded against deferred tax assets. A valuation allowance has been recorded against deferred tax assets of approximately $958 million as of April 3, 2015 due to uncertainties related to the ability to utilize these assets. Valuation allowances are evaluated periodically and will be subject to change in each future reporting period as a result of changes in various factors. In determining whether the deferred tax assets are realizable, the Company considers all available positive and negative evidence, including future reversals of existing taxable temporary differences, taxable income in prior carryback years, projected future taxable income, tax planning strategies, and recent financial operations. During 2015, there was a partial valuation allowance release in the U.K. which increased the income tax benefit by $264 million. The release was the result of objectively verifiable positive evidence related to both sustained earnings and three years of cumulative profits. The remaining valuation allowance in the U.K., which relates to non-trade loss tax attributes, is approximately $54 million.
The Company has available foreign net operating loss (NOL) carryforwards of $4,013 million and $3,417 million, federal NOL carryforwards of $48 million and $73 million, and state NOL carryforwards of $655 million and $818 million as of April 3, 2015 and March 28, 2014, respectively. The Company has foreign capital loss carryforwards of $39 million and $80 million as of April 3, 2015 and March 28, 2014, respectively. The Company has state credit carryforwards of $53 million and $53 million and state capital loss carryforwards of $364 million and $428 million as of April 3, 2015 and March 28, 2014, respectively. The Company also has federal foreign tax credit carryforwards of $11 million and $6 million as of April 3, 2015 and March 28, 2014. The foreign NOL carryforwards as of April 3, 2015 can be carried over indefinitely, except for $99 million which expire at various dates through 2024. The federal NOL and credit carryforwards as of April 3, 2015 expire at various dates through 2034. The state NOL and credit carryforwards as of April 3, 2015 expire at various dates through 2034. The state capital loss carryforwards as of April 3, 2015 expire in 2018.
The Company is currently the beneficiary of tax holiday incentives in India, which expire in various fiscal years through 2026. As a result of the India tax holiday incentives, the Company recorded an income tax benefit of approximately $3 million, $3 million, and $3 million, during fiscal years 2015, 2014, and 2013, respectively. The per share effects were $0.02, $0.02, and $0.02, for fiscal years 2015, 2014, and 2013, respectively.
In general, it is the practice and intention of the Company to reinvest the earnings of its non-U.S. subsidiaries in those operations. As of April 3, 2015, the Company has not made a provision for U.S. income tax or additional foreign withholding taxes with respect to accumulated earnings of foreign subsidiaries where the foreign investment of such earnings is essentially permanent in duration. Generally, such amounts would become subject to U.S. taxation upon the remittance of dividends and under certain other circumstances. The cumulative undistributed positive earnings of the Company's foreign subsidiaries were approximately $2,552 million as of April 3, 2015. It is not practicable to estimate the tax cost of repatriating the cumulative undistributed taxable earnings of these foreign subsidiaries to the United States.
In May 2013, the India Finance Act 2013 introduced a share buyback tax. Additional legislation was passed effective in May 2015 that increased the share buyback tax rate to 23.07% and increased the dividend distribution tax rate to 20.36%, among other changes. The Company uses the lower undistributed tax rate to measure deferred taxes on inside basis differences, including undistributed earnings, of our India operations as these earnings are permanently reinvested. While the Company has no plans to do so, events may occur in the future that could result in management changing its intent not to repatriate our India earnings. If the Company changes its intent and repatriates such earnings, a dividend distribution tax or share buyback tax will be incurred. These additional taxes will be recorded as tax expense in the period in which the Company changes its intent.
The Company accounts for income tax uncertainties in accordance with ASC 740-10, which prescribes a recognition threshold and measurement criteria for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. Benefits from tax positions should be recognized in the financial statements only when it is more likely than not that the tax position will be sustained upon examination by the appropriate taxing authority that would have full knowledge of all relevant information. A tax position that meets the more-likely-than-not recognition threshold is measured at the largest amount of benefit that is greater than fifty percent likely of being realized upon ultimate settlement. Tax positions that previously failed to meet the more-likely-than-not recognition threshold should be recognized in the first subsequent financial reporting period in which that threshold is met. Previously recognized tax positions that no longer meet the more-likely-than-not recognition threshold should be derecognized in the first subsequent financial reporting period in which that threshold is no longer met. ASC 740 also provides guidance on the accounting for and disclosure of liabilities for uncertain tax positions, interest and penalties.
As of April 3, 2015, in accordance with ASC 740, "Income Taxes," the Company’s liability for uncertain tax positions was $241 million, including interest of $38 million, penalties of $9 million, and net of tax attributes of $115 million. As of March 28, 2014, the Company’s liability for uncertain tax positions was $250 million, including interest of $27 million, penalties of $19 million, and net of tax attributes of $95 million.
The following table summarizes the activity related to the Company’s uncertain tax positions (excluding interest and penalties and related tax attributes):
		Twelve Months Ended
(Amounts in millions)		April 3, 2015				March 28, 2014				March 29, 2013
Balance at Beginning of Fiscal Year		$	299			$	294			$	340
Gross increases related to prior year tax positions		45				31				7
Gross decreases related to prior year tax positions		(11		)		(27		)		(40		)
Gross increases related to current year tax positions		12				10				8
Settlements and statute of limitation expirations		(25		)		(1		)		(18		)
Foreign exchange and others		(11		)		(8		)		(3		)
Balance at End of Fiscal Year		$	309			$	299			$	294
The Company’s liability for uncertain tax positions at April 3, 2015, March 28, 2014, and March 29, 2013, includes $153 million, $161 million, and $148 million, respectively, related to amounts that, if recognized, would affect the effective tax rate (excluding related interest and penalties).
The Company recognizes interest accrued related to uncertain tax positions and penalties as a component of income tax expense. During the year ended April 3, 2015, the Company had a net increase in interest of $11 million ($12 million net of tax) and a reduction in accrued penalties of $10 million, and as of April 3, 2015, has recognized a liability for interest of $38 million ($32 million net of tax) and penalties of $9 million. During the year ended March 28, 2014, the Company had a net reduction in interest of $11 million ($7 million net of tax) and accrued penalties of $2 million, and as of March 28, 2014, recognized a liability for interest of $27 million ($21 million net of tax) and penalties of $19 million. During the year ended March 29, 2013, the Company accrued interest expense of $7 million ($5 million net of tax) and accrued penalties of $2 million, and as of March 29, 2013, recognized a liability for interest of $38 million ($28 million net of tax) and penalties of $17 million.
Tax Examination Status:
The Company is currently under examination in several tax jurisdictions. A summary of the tax years that remain subject to examination in certain of the Company’s major tax jurisdictions are:
Jurisdiction:		Tax Years that Remain Subject to Examination
		(Fiscal Year Ending):
United States – Federal		2008 and forward
United States – Various States		2005 and forward
Australia		2011 and forward
Canada		2008 and forward
Denmark		2010 and forward
France		2012 and forward
Germany		2006 and forward
India		2009 and forward
United Kingdom		2010 and forward
It is reasonably possible that during the next twelve months the Company's liability for uncertain tax positions may change by a significant amount. The Internal Revenue Service (IRS) is examining the Company's federal income tax returns for fiscal years 2008 through 2013. The IRS examined several issues for the fiscal years 2008 through 2010 that resulted in audit adjustments to the Company’s federal income tax return. The Company does not agree with many of the proposed adjustments and has filed an Appeals brief. Therefore, the Company now expects to reach a resolution for fiscal years 2008 through 2010 no earlier than fiscal year 2017. The significant items subject to examination primarily relate to foreign exchange losses and other US international tax issues. The IRS has not proposed any adjustments for the fiscal years 2011 through 2013. In addition, the Company may settle certain other tax examinations, have lapses in statutes limitations, or voluntarily settle income tax positions in negotiated settlements for different amounts than the Company has accrued as uncertain tax positions. The Company may need to accrue and ultimately pay additional amounts for tax positions that previously met a more likely than not standard if such positions are not upheld. Conversely, the Company could settle positions with the tax authorities for amounts lower than those that have been accrued or extinguish a position though payment. The Company believes the outcomes which are reasonably possible within the next twelve months may result in a reduction in liability for uncertain tax positions of up to $59 million excluding interest and penalties.

Debt

Debt	12 Months Ended
	Apr. 03, 2015
Debt Instruments [Abstract]
Debt	Debt
	The following is a summary of the Company's debt as of April 3, 2015 and March 28, 2014:
	(Amounts in millions)		April 3, 2015		March 28, 2014
	4.45% term notes, due September 2022		$	451	$	434
	6.50% term notes, due March 2018		917		917
	2.50% term notes, due September 2015		350		350
	Note payable, due January 2016		371		413
	Mandatorily redeemable preferred stock outstanding		61		61
	Note payable of consolidated subsidiary		68		68
	Capitalized lease liabilities		353		511
	Borrowings for assets acquired under long-term financing		95		98
	Other borrowings		3		36
	Total debt		2,669		2,888
	Less: short term debt and current maturities of long term debt		904		681
	Total long-term debt		$	1,765	$	2,207
	During fiscal 2015, CSC modified its existing $2.5 billion credit facility agreement by extending the maturity date from January 15, 2019 to January 15, 2020. There were no borrowings outstanding against the credit facility as of April 3, 2015 and March 28, 2014. The Company also extended the maturity date of its £250 million or $371 million (at the April 3, 2015 exchange rates) short-term note payable from December 2014 to January 19, 2016. The Company was in compliance with all financial covenants associated with both the £250 million short-term note payable and the $2.5 billion credit facility as of April 3, 2015 and March 28, 2014.
	The increase in the balance of the 4.45% term notes includes $15 million of change in the fair value of the interest rate swaps (see Note 9).
	During fiscal 2015, CSC Asset Funding I LLC, which is a special purpose subsidiary of CSC Finance Co. LLC (CSC Finco) which is a wholly owned subsidiary of the Company, entered into a master loan and security agreement with a financial institution which provides for a $250 million committed Lease Credit Facility (Leasing Facility) to finance CSC Finco's capital expenditures for IT equipment and associated software in support of IT services provided to the Company's customers. The drawdown availability period for the Leasing Facility is eighteen months, and once drawn, converts into individual term notes of variable terms up to sixty months therefrom, depending on the nature of the underlying equipment being financed. There were no borrowings against the Lease Credit Facility as of April 3, 2015. CSC Finco was in compliance with all financial covenants associated with the leasing facility at April 3, 2015.
	During fiscal 2015 the Company elected to suspend its commercial paper program. As of April 3, 2015 and March 28, 2014, the Company had no borrowings outstanding against commercial paper.
	Capitalized lease liabilities represent obligations due under capital leases for the use of computers and other equipment. The gross amount of assets recorded under capital leases was $1,043 million with accumulated amortization of $622 million, as of April 3, 2015, and $1,208 million with accumulated amortization of $609 million, as of March 28, 2014.
	Certain asset purchases under outsourcing contracts were financed by borrowings from customers. These borrowings carry a rate of interest from 0.0% to 5.0% and will mature over the next four years. Gross amounts of assets purchased under long-term financings included $58 million and $88 million in property and equipment, $97 million and $76 million in software, $44 million and $93 million in outsourcing contract costs and $0 million and $10 million in other intangible assets as of April 3, 2015 and March 28, 2014, respectively.
	Foreign subsidiaries of the Company had $0 million and $31 million of borrowings outstanding as of April 3, 2015 and March 28, 2014, respectively, under uncommitted lines of credit with certain foreign banks. CSC has provided parent guarantees for these short-term lines of credit which carry no commitment fees or significant covenants. In addition, the Company had $3 million and $5 million of other borrowings outstanding as of April 3, 2015 and March 28, 2014, respectively, consisting of other interest bearing debt and notes payable.
	Expected maturities of long-term debt, including borrowings for asset financing but excluding future minimum capital lease payments, for years subsequent to April 3, 2015, are as follows:
	Fiscal Year	Amount (in millions)
	2016	$	766
	2017	45
	2018	993
	2019	—
	2020	—
	Thereafter	512
	Total	$	2,316
	The future minimum lease payments required to be made under the capital leases as of April 3, 2015, are as follows:
	Fiscal Year	Amount (in millions)
	2016	$	174
	2017	110
	2018	59
	2019	41
	2020	35
	Thereafter	103
	Total minimum lease payments	522
	Less: Amount representing interest and executory costs	(169		)
	Present value of net minimum lease payments	353
	Less: Current maturities of capital lease obligations	(138		)
	Long-term capitalized lease liabilities	$	215

Pension_and_Other_Benefit_Plan

Pension and Other Benefit Plans	12 Months Ended
	Apr. 03, 2015
Pension And Other Benefit Plans [Abstract]
Pension and Other Benefit Plans	Pension and Other Benefit Plans
	The Company sponsors a number of defined benefit plans and defined contribution plans for the benefit of eligible employees. The defined benefit plans comprise primarily pension plans and post-retirement medical benefit plans. The defined contribution plans include the Company's deferred compensation plan for executives and non-employee directors.
	Defined Benefit Pension Plans
	U.S. Plans
	Contributory, defined benefit pension plans have been generally available to U.S. employees. However, the largest U.S. defined benefit pension plan was frozen for most participants in fiscal 2010. In addition, the Company has two supplemental executive retirement plans (SERP), which are non-qualified, non-contributory pension plans. The Company's funding policy is to make contributions to the Plans in amounts, as determined by an independent actuary, that meets the minimum requirements of the Internal Revenue Code (IRC) and ERISA, and that may exceed such minimum requirements if determined to be beneficial to the Company for cost recoverability, tax, or other regulatory reasons.
	During the third quarter of fiscal 2015, the Company offered lump sum settlements to the vested participants of certain of its U.S. defined benefit pension plans, who were no longer with the Company. The lump-sum settlement required interim remeasurement of the plans' assets and liabilities, as of the end of the third quarter of fiscal 2015, which resulted in a net loss of $430 million, comprising actuarial losses of $374 million and a settlement loss of $56 million. The actuarial and settlement losses were primarily a result of the adoption of the new mortality tables issued by the Society of Actuaries in October 2014. The economic benefit realized due to the lump sum payments was $98 million which was included in the net loss of $430 million. The lump sum settlement resulted in reduction of the aggregate pension benefit obligation (PBO) of these U.S. defined benefit plans by $583 million, whereas the interim remeasurement resulted in an increase in PBO of $474 million. A weighted average discount rate of 4.13% was used to remeasure the plans; a decrease from 4.58% used in the prior fiscal year. The average funded status of the impacted U.S. pension plans, after remeasurement, was 87%. The weighted-average expected long-term rate of return on plan assets, after remeasurement, is 7.60% which was consistent with the rate used at the beginning of the fiscal year 2015.
	On April 30, 2014, one of the U.S. pension plans was curtailed, which resulted in a settlement loss of $2 million, caused by amortization of the prior service cost. The plan was remeasured using a discount rate of 4.14%, a decrease from 4.23% at the prior fiscal year end, which resulted in an increase to the fair value of actuarial PBO of $1 million, increasing the plan’s unfunded obligations.
	On July 19, 2013, CSC completed the sale of ATD (see Note 5), which had a pension and a retiree medical plan. The divestiture of these plans resulted in the recognition of a settlement gain of $36 million that was recorded as part of the gain on sale of ATD, and a reduction to long-term liabilities of $28 million. The net periodic pension cost related to the divested plans, excluding the settlement gain, for the years ended March 28, 2014 and March 29, 2013 was $1 million and $6 million respectively.
	On December 31, 2012, the Company made a discretionary cash contribution of $400 million to its largest U.S. pension plan resulting in a remeasurement of the plan. The effects of this remeasurement were recorded during the fourth quarter of fiscal 2013 and resulted in a reduction of net periodic pension cost of $10 million for fiscal 2013, along with additional plan liabilities of $379 million due to using a new discount rate of 4.0%, a decrease from the previous rate of 4.85%. On March 26, 2013, the Company made an additional discretionary cash contribution of $80 million to various U.S. pension plans.
	Non-US Plans
	Eligible non-U.S. employees are enrolled in defined benefit pension plans in their country of domicile. The Contributory defined benefit pension plan in the U.K. represents the largest plan outside of the U.S. Effective July 1, 2010, the accrual of future benefits was discontinued for certain U.K. pension plans. In addition, healthcare, dental and life insurance benefits are also provided to certain non-U.S. employees. A significant number of employees outside the U.S. are covered by government sponsored programs at no direct cost to the Company other than related payroll taxes.
	On December 31, 2014, a defined benefit pension plan in Switzerland was subject to interim remeasurement due to the significant amount of settlement payments from the plan. The interim remeasurement of the plan assets and liabilities resulted in an aggregate charge of $29 million, comprising actuarial losses of $26 million and a settlement loss of $3 million. A discount rate of 1.20% was used to remeasure the plans; a decrease from 2.10% in the prior fiscal year. As a result of the remeasurement, the plan's PBO decreased by $38 million and the funded status was 78%. The weighted-average expected long-term rate of return on plan assets, after remeasurement, is 3.60%, which was consistent with the rate used at the beginning of fiscal 2015.
	On July 31, 2014, CSC completed the sale of a German software business, which had a pension plan. The plan was remeasured as of the date of the sale, resulting in settlement gain totaling $3 million, which has been reported within discontinued operations.
	On December 20, 2013, two U.K. pension plans were remeasured due to a plan amendment arising from a change in the index used to determine the level of pension increases, from the Retail Prices Index (RPI) to the Consumer Prices Index (CPI). A weighted average discount rate of 4.65% was used to remeasure the plans; an increase from 4.31% in the prior fiscal year. As a result of the remeasurement, the pension benefit obligation decreased by $443 million and the average funded status was 108%.
	In connection with the restructuring plans (see Note 21), the Company accrued $3 million, $17 million, and $20 million, for fiscal years 2015, 2014 and 2013, respectively, as additional contractual termination benefits, for certain employees participating in a U.K. pension plan. These amounts are reflected in the projected benefit obligation and in the net periodic pension cost. The fiscal 2013 amount of $20 million was net of a $3 million reduction to the fiscal 2012 estimated contractual benefits to be paid.
	On March 26, 2013, the Company made a discretionary cash contribution of $20 million to its largest Canadian pension plan.
	Effective July 1, 2012, a Norway pension plan was amended to change the index used to benchmark pension payment increases. The plan was remeasured at July 1, 2012 resulting in a reduction to the projected benefit obligation of $28 million, improving the plan's funded status. The plan's fiscal 2013 expense was also remeasured for the remaining nine months of the fiscal year using a discount rate of 4.0%.
	The following tables provide reconciliations of the changes in the pension plans’ projected benefit obligations and assets, and a statement of their funded status:
	Reconciliation of Projected Benefit Obligation		U.S. Pension Plans								Non-U.S. Pension Plans
	(Amounts in millions)		April 3, 2015				March 28, 2014				April 3, 2015				March 28, 2014
	Projected benefit obligation at beginning of year		$	3,409			$	3,506			$	2,873			$	3,012
	Service cost		4				5				23				25
	Interest cost		147				149				117				124
	Plan participants’ contributions		1				1				4				6
	Amendments		—				—				1				(254		)
	Business/contract acquisitions/divestitures		—				(107		)		(6		)		9
	Contractual termination benefits		—				—				3				17
	Settlement/curtailment		(487		)		—				(25		)		(46		)
	Actuarial loss (gain)		460				3				491				(135		)
	Benefits paid		(148		)		(148		)		(95		)		(88		)
	Foreign currency exchange rate changes		—				—				(384		)		205
	Other		(1		)		—				4				(2		)
	Projected benefit obligation at end of year		$	3,385			$	3,409			$	3,006			$	2,873
	Reconciliation of Fair Value of Plan Assets		U.S. Pension Plans								Non-U.S. Pension Plans
	(Amounts in millions)		April 3, 2015				March 28, 2014				April 3, 2015				March 28, 2014
	Fair value of plan assets at beginning of year		$	3,263			$	3,125			$	2,824			$	2,550
	Actual return on plan assets		187				364				367				129
	Employer contribution		8				7				45				81
	Plan participants’ contributions		1				1				4				6
	Benefits paid		(148		)		(148		)		(95		)		(88		)
	Business/contract acquisitions/divestitures		—				(86		)		—				9
	Contractual termination benefits		—				—				23				—
	Plan settlement		(488		)		—				(25		)		(46		)
	Foreign currency exchange rate changes		—				—				(340		)		183
	Other		—				—				(1		)		—
	Fair value of plan assets at end of year		$	2,823			$	3,263			$	2,802			$	2,824
	Funded status at end of year		$	(562	)		$	(146	)		$	(204	)		$	(49	)
	The following table provides the amounts recorded in the Company’s Consolidated Balance Sheet:
			U.S. Pension Plans								Non-U.S. Pension Plans
	(Amounts in millions)		April 3, 2015				March 28, 2014				April 3, 2015				March 28, 2014
	Non-current assets		$	—			$	—			$	83			$	166
	Current liabilities - Accrued expenses and other current liabilities		(8		)		(8		)		(4		)		(7		)
	Non-current liabilities - Other long-term liabilities		(554		)		(138		)		(283		)		(208		)
	Net amount recorded		$	(562	)		$	(146	)		$	(204	)		$	(49	)
	The following is a summary of amounts in accumulated other comprehensive loss, before tax effects, as of April 3, 2015 and March 28, 2014 that have not been recognized in the Consolidated Statements of Operations as components of net periodic pension cost:
			U.S. Pension Plans								Non-U.S. Pension Plans
	(Amounts in millions)		April 3, 2015				March 28, 2014				April 3, 2015				March 28, 2014
	Net transition obligation		$	—			$	—			$	2			$	3
	Prior service cost		—				2				(273		)		(279		)
	Accumulated other comprehensive loss		$	—			$	2			$	(271	)		$	(276	)
	The following table summarizes the weighted average assumptions used in the determination of the Company’s pension plans’ benefit obligations as of April 3, 2015 and March 28, 2014:
		U.S. Pension Plans						Non-U.S. Pension Plans
		April 3, 2015			March 28, 2014			April 3, 2015			March 28, 2014
	Discount rate	3.9	%		4.6	%		3	%		4.3	%
Rates of increase in compensation levels	4.4	%		4.3	%		2.8	%		3.4	%
The following table lists selected information for the pension plans as of April 3, 2015 and March 28, 2014:
		U.S. Pension Plans								Non-U.S. Pension Plans
(Amounts in millions)		April 3, 2015				March 28, 2014				April 3, 2015				March 28, 2014
Projected benefit obligation		$	3,385			$	3,409			$	3,006			$	2,873
Accumulated benefit obligation		3,372				3,394				2,948				2,833
Fair value of plan assets		2,823				3,263				2,802				2,824
		Pension Plans with Projected Benefit Obligation in Excess of Plan Assets								Pension Plans with Accumulated Benefit Obligation in Excess of Plan Assets (U.S. and Non-U.S.)
		(U.S. and Non-U.S.)
(Amounts in millions)		April 3, 2015				March 28, 2014				April 3, 2015				March 28, 2014
Projected benefit obligation		$	4,035			$	3,945			$	4,007			$	3,917
Accumulated benefit obligation		3,976				3,906				3,958				3,888
Fair value of plan assets		3,186				3,585				3,166				3,564
The net periodic pension cost for U.S. and non-U.S. pension plans included the following components:
		U.S. Pension Plans												Non-U.S. Pension Plans
(Amounts in millions)		April 3,				March 28,				March 29,				April 3,				March 28,			March 29,
		2015				2014				2013				2015				2014			2013
Service cost		$	4			$	5			$	10			$	23			$	25		$	25
Interest cost		147				149				153				117				124			123
Expected return on assets		(233		)		(216		)		(170		)		(181		)		(166		)	(122		)
Amortization of transition obligation		—				—				—				1				1			1
Amortization of prior service costs		—				2				2				(10		)		(5		)	(1		)
Contractual termination benefit		—				—				—				3				17			20
Settlement loss(gain)		59				(28		)		—				1				—			(8		)
Recognition of actuarial loss/(gain)		450				(138		)		115				274				(101		)	199
Net periodic pension expense/(income)		$	427			$	(226	)		$	110			$	228			$	(105	)	$	237
Other before tax changes in plan assets and benefit obligations recognized in other comprehensive income during fiscal years 2015, 2014 and 2013 included the following components:
		U.S. Pension Plans												Non-U.S. Pension Plans
(Amounts in millions)		April 3,				March 28,				March 29,				April 3,				March 28,			March 29,
		2015				2014				2013				2015				2014			2013
Prior service (credit)/cost		$	—			$	—			$	—			$	2			$	(265	)	$	(27	)
Amortization of:
Transition (asset)/obligation		—				—				—				(1		)		(1		)	(1		)
Prior service (credit)/cost		(2		)		(2		)		(2		)		10				5			1
Foreign currency exchange rate changes		—				—				—				—				(2		)	—
Total recognized in other comprehensive income		$	(2	)		$	(2	)		$	(2	)		$	11			$	(263	)	$	(27	)
Other comprehensive (income) loss related to unamortized pension costs for the years ended April 3, 2015, March 28, 2014, and March 29, 2013 was $7 million (net of tax impact of $2 million), $(265) million (net of taxes of $0 million), and $(14) million (net of tax impact of $15 million), respectively.
The estimated net transitional obligation and prior service credit for defined benefit plans that will be amortized from accumulated other comprehensive income into net periodic pension cost over the next fiscal year are $1 million, and $(9) million respectively.
The weighted-averages of the assumptions used to determine net periodic pension cost were:
	U.S. Pension Plans									Non-U.S. Pension Plans
	April 3,			March 28,			March 29,			April 3,			March 28,			March 29,
	2015			2014			2013			2015			2014			2013
Discount or settlement rates	4.5	%		4.4	%		4.6	%		4.2	%		4.1	%		4.7	%
Expected long-term rates of return on assets	7.6	%		7.2	%		6.8	%		6.5	%		6.2	%		5.4	%
Rates of increase in compensation levels	4.3	%		4.3	%		4.1	%		3.4	%		3.5	%		4.1	%
Information about the expected cash flows for pension plans as of April 3, 2015, is as follows:
(Amounts in millions)		U.S. Plans				Non-U.S. Plans
Employer contributions:
2016		$	8			$	46
Benefit Payments:
2016		$	161			$	104
2017		164				111
2018		173				119
2019		180				128
2020		186				136
2021-2025		990				835
Defined Benefit Other Postretirement Benefit Plans
The Company provides subsidized healthcare and life insurance retirement benefits for certain U.S. employees and retirees, generally for those employed prior to August 1992. In response to the passage of the Patient Protection and Affordable Care Act of 2010 (PPACA), a number of changes were made to the underlying healthcare coverage offered to certain U.S. retirees. In conjunction with those changes, the Company established limits on the level of employer subsidy it will provide to some retirees. Several plans were amended and the impact of these changes was first reflected on April 1, 2011. In 2012, several retiree medical plans were further amended to allow Medicare Part D subsidies from 2012 and beyond to be collected by the healthcare provider and was reflected on March 30, 2012. The Company further amended its retiree healthcare plans effective February 1, 2015. Under the amended plans, Medicare eligible and Medicare ineligible retirees receive healthcare benefits through different means.
On October 6, 2014, the Company amended its U.S. retiree medical health plans to provide coverage to eligible Medicare retirees through a private insurance marketplace. The insurance marketplace will allow retirees to choose the health insurance terms, cost and coverage that best fit their needs, while CSC will continue to provide financial support to the Medicare eligible participants in the form of a tax free contribution to a health reimbursement account. These amendments resulted in interim remeasurement of the retiree medical plans, which resulted in an actuarial loss of $1 million. A weighted average discount rate of 4.01% was used to remeasure the plans; a decrease from 4.32% in the prior fiscal year. As a result of the remeasurement, the benefit obligations decreased and the prior service credit increased by $99 million each. Subsequent to the remeasurement, the average funded status was 74%. The weighted-average expected long-term rate of return on plan assets is 7.50% as of October 6, 2014, after remeasurement, which is consistent with the rate at the beginning of the year, March 29, 2014.
The following tables provide reconciliations of the changes in postretirement plans’ benefit obligations and assets and a statement of their funded status:
Reconciliation of Accumulated Postretirement Benefit Obligation
(Amounts in millions)		April 3, 2015				March 28, 2014
Accumulated benefit obligation at beginning of year		$	221			$	253
Service cost		2				3
Interest cost		7				10
Plan amendments		(96		)		—
Business/contract acquisitions/divestitures		—				(15		)
Actuarial loss/(gain)		(4		)		(16		)
Benefits paid		(10		)		(11		)
Retiree drug subsidy reimbursement		—				1
Foreign currency exchange rate changes		(1		)		(1		)
Other		—				(3		)
Accumulated benefit obligation at end of year		$	119			$	221
Reconciliation of Fair Value of Plan Assets
(Amounts in millions)		April 3, 2015				March 28, 2014
Fair value of plan assets at beginning of year		$	82			$	84
Actual return on plan assets		6				10
Employer contribution		2				6
Retiree drug subsidy		—				1
Business contract/acquisitions/divestitures		—				(8		)
Benefits paid		(10		)		(11		)
Fair value of plan assets at end of year		$	80			$	82
Funded status at end of year		$	(39	)		$	(139	)
The following table provides the amounts recorded in the Company’s Consolidated Balance Sheets:
(Amounts in millions)		April 3, 2015				March 28, 2014
Non-current assets		$	2			$	—
Current liabilities - Accrued expenses and other current liabilities		(2		)		(4		)
Non-current liabilities - Other long-term liabilities		(39		)		(135		)
Net amount recorded		$	(39	)		$	(139	)
The following is a summary of amounts in accumulated other comprehensive loss as of April 3, 2015 and March 28, 2014 that have not been recognized in the Consolidated Statements of Operations as components of net periodic benefit cost:
(Amounts in millions)		April 3, 2015				March 28, 2014
Prior service (credit)/cost		$	(95	)		$	(15	)
Accumulated other comprehensive loss		$	(95	)		$	(15	)
The following table lists selected information for other postretirement benefit plans as of April 3, 2015 and March 28, 2014:
										Plans with
										Accumulated Postretirement
										Benefit Obligation in Excess of the Fair Value of Plan Assets
(Amounts in millions)		April 3, 2015				March 28, 2014				April 3, 2015				March 28, 2014
Accumulated postretirement benefit obligation		$	119			$	221			$	41			$	221
Fair value of plan assets		80				82				—				82
As of April 3, 2015 and March 28, 2014, the Company had no postretirement healthcare plan assets outside the U.S. Benefits paid include amounts paid directly from plan assets and amounts paid by the Company.
The following table summarizes the weighted average assumptions used in the determination of the Company’s postretirement benefit obligations as of April 3, 2015 and March 28, 2014:
	April 3, 2015			March 28, 2014
Discount rate	3.7	%		4.3	%
The assumed healthcare cost trend rate used in measuring the accumulated postretirement benefit obligation was 8.8% for fiscal 2015, declining to 5.0% for 2024 and subsequent years for all retirees. Assumed healthcare cost trend rates have a significant effect on the amounts reported for the healthcare plans. A one-percentage point change in the assumed healthcare cost trend rates would have had the following effect:
	One Percentage Point
(Amounts in millions)	Increase				Decrease
Effect on accumulated postretirement benefit obligation as of April 3, 2015	$	2			$	(2	)
The net periodic benefit cost for other postretirement benefit plans included the following components:
(Amounts in millions)		April 3, 2015				March 28, 2014				March 29, 2013
Service cost		$	2			$	3			$	4
Interest cost		7				10				11
Expected return on assets		-6				(5		)		(5		)
Amortization of transition obligation		—				—				—
Amortization of prior service costs		-15				(2		)		(2		)
Settlements loss(gain)		—				(8		)		—
Recognized actuarial loss/(gain)		-5				-20				-8
Net periodic pension expense/(income)		$	(17	)		$	(22	)		$	—
Other before tax changes in plan assets and benefit obligations recognized in other comprehensive income during fiscal years 2015, 2014 and 2013 included the following components:
(Amounts in millions)		April 3, 2015				March 28, 2014				March 29, 2013
Prior service (credit)/cost		(96		)		—				—
Amortization of:
Transition (asset)/obligation		—				—				—
Prior service (credit)/cost		15				2				2
Total recognized in other comprehensive income		$	(81	)		$	2			$	2
Other comprehensive (income) loss related to unamortized postretirement benefit plan costs for the years ended April 3, 2015, March 28, 2014, and March 29, 2013 was $(49) million (net of tax impact of $32 million), $1 million (net of tax impact of $1 million), and $2 million (net of taxes of $0 million), respectively.
The estimated prior service credit for other postretirement benefit plans that will be amortized from accumulated other comprehensive loss into net periodic benefit cost over the next fiscal year is $(25) million.
The weighted-averages of the assumptions used to determine net periodic benefit cost were as follows.
Fiscal Year End		2015			2014			2013
Discount or settlement rates		4.2	%		4.1	%		4.5	%
Expected long-term rates of return on assets		7.5	%		5.9	%		6.5	%
Following are the expected cash flows for both U.S. and Non-U.S.based other post-retirement benefit plans:
	(Amounts in millions)		U.S. and Non-U.S. Plans
	Employer Contributions:
	2016		$	2
	Benefit Payments:
	2016		$	7
	2017		7
	2018		7
	2019		8
	2020		8
	2021-2025		38
No significant cash flow is expected for other post-retirement benefit plans outside the U.S.
Pension and Other Postretirement Benefit Plan Assets
U.S. pension plan and OPEB plan assets are held in a trust that includes both separate accounts and commingled funds. Non-U.S. assets are subject to country specific regulations and invest primarily in commingled funds. The U.S. pension trust and the U.K. pension plans account for 91% of the total pension plan assets.
The Company’s investment goals and risk management strategy for plan assets takes into account a number of factors, including the time horizon of the pension plans’ obligations. Plan assets are invested in various asset classes that are expected to produce a sufficient level of diversification and a reasonable amount of investment return over the long term. Sufficient liquidity is maintained to meet benefit obligations as they become due. Third party investment managers are employed to invest assets in both passively-indexed and actively-managed strategies. Equities are primarily invested broadly in domestic and foreign companies across market capitalizations and industries. Fixed income securities are invested broadly, primarily in government treasury, corporate credit, mortgage backed and asset backed investments. Alternative investment allocations are included in selected pension plans to achieve greater portfolio diversity intended to reduce the overall risk of the plans.
Risks include, but are not limited to, longevity risk, inflation risk, and the risk of other changes in market conditions that reduce the value of plan assets. Also, a decline in the yield of high quality corporate bonds may adversely affect discount rates resulting in an increase in the pension and other post retirement obligations. These risks, among others, could cause the plans’ funded status to deteriorate, increasing reliance on Company contributions. Derivatives are permitted although their current use is limited within traditional funds and broadly allowed within alternative funds. They are used in the U.S. pension trust traditional fixed income portfolios for duration and interest rate risk management and traditional equity portfolios to gain market exposure, and are used in the U.K. pension schemes for inflation risk management and within the liability driven investing strategy. The Company also has investments in insurance contracts to pay plan benefits in certain countries.
For the U.S. pension trust, an allocation range by asset class is developed. The allocation has a significant weighting to equity investments in part due to the relatively long duration of the plans’ obligations. As of March 2015, the plan fiduciaries adopted investment allocation targets for the U.S. pension trust of 30% equities, 30% fixed income securities, and 40% alternative investments. Alternatives include risk parity, global tactical, hedge fund and hedge fund of fund allocations. An allocation range is established for each asset class and cash equivalents may represent 0%-10% of the fund. Asset allocations are monitored closely and investment reviews are conducted regularly. The Company consults with internal and external advisors regarding asset strategy.
For the U.K. pension plans, the Company's second largest pension plans by assets and projected liabilities, a target allocation by asset class is developed to achieve their long term objectives. As of March 2015, the plans held investment allocation targets of 35% equities, 33% fixed income (including 23% corporate bonds and 10% in liability-driven investment products), and 32% alternatives. Alternatives include risk parity, hedge fund, multi-asset credit, and property fund allocations. Asset allocations are monitored closely by the plan trustees and investment reviews are conducted regularly. The plan trustees consult with internal and external advisors regarding asset strategy.
CSC early adopted the provisions of ASU No. 2015-04 (see Note 1) and used March 31, 2015 as the date closest to its fiscal year end, to value plan assets of all its defined benefit plans. There was no material impact of adoption of this ASU on the fair value of plan assets.
Plan Asset Valuation Techniques
Cash equivalents are primarily short term money market commingled funds that are categorized as Level 2, except for funds that have quoted prices in active markets, which are classified as Level 1. They are valued at cost plus accrued interest which approximates fair value.
Fixed income accounts are categorized as Level 2. Investments in corporate bonds are primarily investment grade bonds. These investments are generally priced using model-based pricing methods that use observable market data as inputs. Broker dealer bids or quotes of securities with similar characteristics may also be used.
Domestic and global equity separate accounts are categorized as Level 1 if the securities trade on national or international exchanges and are valued at their last reported closing price. Equity assets in commingled funds reporting a net asset value (NAV) are categorized as Level 2.
Insurance contracts purchased to cover benefits payable to retirees are valued using the assumptions used to value the projected benefit obligation. Most of the plans' insurance contracts are categorized as level 2 while one plan has a level 3 insurance contract.
Derivatives are categorized as Level 1 if the securities trade actively on a recognized exchange, as Level 2 if the securities can be valued using observable inputs, or as Level 3 if the securities are valued using significant unobservable inputs.
Alternative investment fund securities are categorized as Level 1 if held in a mutual fund or in a separate account structure and actively traded through a recognized exchange, or as Level 2 if they are held in commingled or collective account structures and are actively traded. Alternative investment fund securities are classified as Level 3 if they are held in Limited Company or Limited Partnership structures or cannot otherwise be classified as Level 1 or Level 2.
The fair value of pension plan assets and postretirement benefit plans by investment category and the corresponding level within the fair value hierarchy as of April 3, 2015 are as follows:
(Amounts in millions)		U.S. Plans				Non-U.S. Plans
Fair value of pension plan assets		$	2,823			$	2,802
Fair value of other postretirement benefit plan assets		80				—
Total fair value of retirement plan assets as of April 3, 2015		$	2,903			$	2,802
U.S. Pension and Other Postretirement Benefit Plans
(Amounts in millions)			Level 1				Level 2				Level 3				Total
Equity:
	U.S. Domestic Stocks		$	149			$	—			$	—			$	149
	Global/International		23				—				—				23
	Domestic Equity commingled funds		4				451				—				455
	Global Equity commingled funds		—				154				—				154
Fixed Income:
	Fixed income mutual funds		102				—				—				102
	Fixed income commingled funds		3				495				—				498
	Mortgage and asset backed securities		—				52				—				52
	Corporate		—				41				—				41
	U.S. Treasuries		—				23				—				23
	Non U.S. Government		—				2				—				2
	U.S. Government Agencies		—				1				—				1
Alternatives:
	Other Alternatives (a)		305				528				—				833
	Hedge Funds (b)		—				—				548				548
Cash and Cash equivalents			1				29				—				30
Total			$	587			$	1,776			$	548			$	2,911
Unsettled Trade Receivable and Accrued Income															21
Unsettled Trade Payable and Accrued Expenses															(29		)
Fair value of assets for U.S. pension and postretirement medical plans as of April 3, 2015															$	2,903
(a) Represents institutional funds consisting mainly of equities, bonds, or commodities.
(b) Represents investments in diversified fund of hedge funds in which the CSC pension plans are the sole investor.
Below is a reconciliation of the assets valued using significant unobservable inputs (Level 3):
(Amounts in millions)		Level 3
Beginning balance as of March 28, 2014		$	328
Actual return on plan assets held at the reporting date		20
Purchases, sales, and settlements		200
Ending balance as of April 3, 2015		$	548
Non-U.S. Pension Plan Assets
(Amounts in millions)			Level 1				Level 2				Level 3				Total
Equity:
	Global/International Equity commingled funds		—				817				—				817
	Global equity mutual funds		—				122				—				122
	U.S./North American Equity commingled funds		$	—			$	64			$	—			$	64
Fixed Income:
	Fixed income commingled funds		—				944				—				944
Alternatives:
Other Alternatives (a)			3				392				116				511
	Hedge Funds (b)		—				—				169				169
Insurance contracts			—				137				4				141
Cash and cash equivalents			30				4				—				34
Total			$	33			$	2,480			$	289			$	2,802
Unsettled Trades															—
Fair value of non-U.S. pension assets as of April 3, 2015															$	2,802
(a) Represents real estate, and other commingled funds consisting mainly of equities, bonds, or commodities.
(b) Represents investments in diversified fund of hedge funds.
Below is a reconciliation of the assets valued using significant unobservable inputs (Level 3):
		Non-U.S. Plans Insurance Contracts
(Amounts in millions)
Beginning balance as of March 28, 2014		$	209
Actual return on plan assets held at the reporting date		18
Purchases, sales, and settlements		(13		)
Transfers in and / or out of Level 3		105
Changes due to exchange rates		(30		)
Ending balance as of April 3, 2015		$	289
The fair value of our pension plan assets and postretirement benefit plans by investment category and the corresponding level within the fair value hierarchy as of March 28, 2014, are as follows:
(Amounts in millions)		U.S. Plans				Non-U.S. Plans
Fair value of pension plan assets		$	3,263			$	2,824
Fair value of other postretirement benefit plan assets		82				—
Total fair value of retirement plan assets as of March 28, 2014		$	3,345			$	2,824
U.S. Pension and Other Postretirement Benefit Plans
(Amounts in millions)			Level 1				Level 2				Level 3				Total
Equity:
	U.S. Domestic Stocks		$	256			$	—			$	—			$	256
	Global/International		38				—				—				38
	Domestic Equity commingled funds		5				577				—				582
	Global Equity commingled funds		—				312				—				312
Fixed Income:
	Fixed income commingled funds		3				771				—				774
	Mortgage and asset backed securities		—				89				—				89
	Corporate		—				54				—				54
	U.S. Treasuries		—				57				—				57
	Non U.S. Government		—				2				—				2
	U.S. Government Agencies		—				3				—				3
Alternatives:
	Other Alternatives (a)		324				499				—				823
	Hedge Funds (b)		—				—				328				328
Cash and cash equivalents			—				54				—				54
Total			$	626			$	2,418			$	328			$	3,372
Unsettled Trade Receivable and Accrued Income															28
Unsettled Trade Payable and Accrued Expenses															(55		)
Fair value of assets for U.S. pension and postretirement medical plans as of March 28, 2014															$	3,345
(a) Represents institutional funds consisting mainly of equities, bonds, or commodities.
(b) Represents investments in diversified fund of hedge funds in which the CSC pension plans are the sole investor.
Below is a reconciliation of the assets valued using significant unobservable inputs (Level 3):
(Amounts in millions)		Level 3
Beginning balance as of March 29, 2013		$	—
Actual return on plan assets held at the reporting date		(2		)
Purchases, sales, and settlements		330
Ending balance as of March 28, 2014		$	328
NON-U.S. PENSION PLAN ASSETS
(Amounts in millions)			Level 1				Level 2				Level 3				Total
Equity:
	Global/International Equity commingled funds		$	—			$	899			$	—			$	899
	Global equity mutual funds		—				81				—				81
	U.S./North American Equity commingled funds		—				47				—				47
Fixed Income:
	Fixed income commingled funds		—				951				—				951
Alternatives:
Other Alternatives (a)			—				460				26				486
Hedge Funds (b)			—				—				177				177
Insurance contracts			—				161				6				167
Cash equivalents			—				16				—				16
Total			$	—			$	2,615			$	209			$	2,824
Unsettled Trades															—
Fair value of non-U.S. pension assets as of March 28, 2014															$	2,824
(a) Represents real estate, and other commingled funds consisting mainly of equities, bonds, or commodities.
(b) Represents investments in diversified fund of hedge funds.
Below is a reconciliation of the assets valued using significant unobservable inputs (Level 3):
		Non-U.S. Plans Insurance Contracts
(Amounts in millions)
Beginning balance as of March 29, 2013		$	6
Purchases, sales, and settlements		164
Transfers in and / or out of Level 3		32
Changes due to exchange rates		7
Ending balance as of March 28, 2014		$	209
The asset allocation of pension plans at April 3, 2015 and March 28, 2014, respectively, is as follows:
		U.S. Plans						Non-U.S. Plans
Asset Category		April 3, 2015			March 28, 2014			April 3, 2015			March 28, 2014
Equity securities		27	%		35	%		36	%		36	%
Debt securities		25	%		29	%		34	%		34	%
Alternatives		47	%		34	%		24	%		24	%
Cash and other		1	%		2	%		6	%		6	%
Total		100	%		100	%		100	%		100	%
The asset allocation for U.S. other postretirement benefit plans at April 3, 2015 and March 28, 2014, respectively, is as follows:
		Percentage of Plan
		Assets at Year End
Asset Category		April 3, 2015			March 28, 2014
Equity securities		55	%		59	%
Debt securities		39	%		38	%
Cash and other		6	%		3	%
Total		100	%		100	%
Return on Assets
The Company consults with internal and external advisors regarding the expected long-term rate of return on assets. In the U.S. and U.K., the Company uses a "building block" approach to compute the expected long-term rate of return of the major asset classes expected in each of the plans. CSC utilizes long-term, typically 30 years, asset class return assumptions provided by external advisors. Consideration is also given to the extent active management is employed in each asset class and also to management expenses. A single expected long-term rate of return is calculated for each plan by assessing the plan's expected asset allocation strategy, the benefits of diversification therefrom, historical excess returns from actively managed traditional investments, expected long-term returns for alternative investments and expected investment expenses. The resulting composite rate of return is reviewed by internal and external parties for reasonableness.
Retirement Plan Discount Rate
The U.S. discount rate assumption is prepared with a two-step process; the first step is a yield curve developed as of the measurement date using high-quality corporate bond yields. In step two, each plan's future cash flows are applied to the appropriate years on the yield curve and the weighted value of the cash flows is used to determine a single equivalent discount rate. In fiscal 2015, the discount rates were developed separately for each U.S. pension and other postretirement plan to the nearest basis point using a single yield curve, the Aon Hewitt AA Only Above Median Curve. This yield curve is a hypothetical AA or greater yield curve represented by a series of annualized individual spot discount rates going out 100 years. This curve provides a more transparent view to the underlying bonds and is available daily which provides for a discount rate to be calculated specific to the Company's fiscal year end. For years prior to fiscal 2014, the U.S. discount rates were determined using an average of the Citigroup yield curve and the AON Hewitt yield curve rounded to the nearest 10bps.
In fiscal 2015 , the U.K. pension plans began using the AON Hewitt Single Agency Yield Curve to set the discount rate. This bond universe includes all non-gilt bonds which are rated AA by at least one of the main ratings agencies. Cash flow data is applied to yields of different durations to determine a single equivalent discount rate. For fiscal 2014, the U.K. discount rate assumption was set by reference to the AA Corporate Bond Mercer Pension Discount Yield Curve. For years prior to fiscal 2014, the U.K. discount rate assumption was set by reference to the yield on the iBoxx GBP AA rated +15 years corporate bond index with an appropriate adjustment for duration if necessary after considering yield curve models and conditions in credit markets.
Defined Contribution Plans
The Company sponsors defined contribution plans for substantially all U.S. employees and certain foreign employees.
The plans allow employees to contribute a portion of their earnings in accordance with specified guidelines. Effective January 1, 2014, matching contributions are made once annually in January following the end of the calendar year. In order to receive such contributions, a participant must be employed on December 31 of the plan year. However, if a participant retires (or should decease) from CSC prior to December 31, the participant will be eligible to receive matching contributions approximately 30 days following separation from service. The plan was also amended so participants vest after one year of service from a five-year graded vest. During fiscal 2015, fiscal 2014, and fiscal 2013, the Company contributed $177 million, $179 million, and $213 million, respectively. At April 3, 2015, plan assets included 8,231,499 shares of the Company’s common stock.
Deferred Compensation Plan
Effective August 14, 1995, the Company adopted the Computer Sciences Corporation Deferred Compensation Plan (the Plan). The Plan consists of two separate plans, one for the benefit of key executives and one for the benefit of non-employee directors. Pursuant to the Plan, certain management and highly compensated employees are eligible to defer all or a portion of their regular salary that exceeds the limitation set forth in Internal Revenue Section 401(a)(17) and all or a portion of their incentive compensation, and non-employee directors are eligible to defer up to 100% of their compensation. The liability, which is included in “Other long-term liabilities” under the Plan, amounted to $117 million as of April 3, 2015 and $129 million as of March 28, 2014. The Company’s expense under the Plan totaled $2 million, $9 million, and $8 million, for fiscal 2015, fiscal 2014, and fiscal 2013, respectively.
Multi-employer Pension Fund
In connection with certain multi-employer pension funds that are pursuant to collective bargaining agreements, the Company made contributions, generally at a stated hourly rate, to one multi-employer pension funds on behalf of its union-represented employees. This plan is within the Company's NPS segment. None of the contributions by the Company are individually significant to the multi-employer plans nor do they have a material impact on the Company's financial statements. The risks of participating in these multi-employer plans are different from single-employer plans. If a participating employer stops contributing to the plan, the unfunded obligations of the plan may be borne by the remaining participating employers. The Company's contributions for fiscal year 2015 was negligible.

Stockholders_Equity

Stockholders' Equity	12 Months Ended
	Apr. 03, 2015
Shareholders' Equity [Abstract]
Shareholders' Equity	Stockholders’ Equity
	Share Repurchase Program
	In May 2014, the Company’s Board of Directors approved a new share repurchase program authorizing up to $1.5 billion in share repurchases of the Company's outstanding common stock, after completion of the prior $1 billion share repurchase program.
	The Company repurchased shares through a combination of open market purchases and Accelerated Share Repurchase (ASR) arrangements, in compliance with SEC rules, market conditions and applicable federal and state legal requirements. The timing, volume and nature of share repurchases are at the discretion of management and may be suspended or discontinued at any time. No end date was established for the current repurchase program. The shares repurchased are retired immediately and included in the category of authorized but unissued shares. For accounting purposes, the excess of purchase price over par value of the common shares is allocated between additional paid-in capital and retained earnings.
	The Company's repurchases, under both the open market purchases and the ASR arrangements, is shown below:
	Fiscal year		Number of shares repurchased			Average price per share		Amount (In millions)
	2015
	Open market purchases (1)		7,560,358			$60.71		$	459
	ASR (3)		4,155,193			$66.69		277
	Total		11,715,551			$62.83		$	736
	2014
	Open market purchases (2)		9,773,469			$51.65		$	505
	2013
	Open market purchases		6,707,652			$45.47		$	305
	(1)	Includes $6 million paid during the first quarter of fiscal 2015 for shares purchased during the fourth quarter of fiscal 2014 that had not yet settled as of March 28, 2014.
	(2)	Includes $22 million paid during the first quarter of fiscal 2014 for shares purchased during the fourth quarter of fiscal 2013 that had not yet settled as of March 29, 2013.
	(3)	Reflects initial number of shares repurchased. Final number of shares repurchased will be determined at the maturity of the ASR arrangement.
	During fiscal 2015, the Company entered into two ASR arrangements with a financial institution. Both of these ASR arrangements are characterized by a) upfront cash payments by the Company against which it received an initial delivery of shares, and b) a true-up of the number of shares received, at maturity of the ASR arrangement, based on the volume weighted-average price of shares during the term of the ASR arrangement. In addition, both the ASR arrangements have prepaid contingent delivery provisions, which require the financial institution to deliver additional shares if the Company's stock price is below a predetermined price, on certain predetermined dates. However, in the event the Company's stock price exceeds the predetermined price, the prepaid amounts would be returned to the Company as cash or shares at the Company's option. Both the ASR arrangements met all applicable criteria for equity classification and, therefore, were not accounted for as derivative instruments. The amount of prepaid consideration for contingent delivery of shares, associated with the fourth quarter ASR arrangement, was recorded as contra-equity.
	The details of the two fiscal 2015 ASR arrangements are as follows:
	Program		Contract maturity		Total value of ASR (in millions)				Number of shares repurchased		Consideration for initial purchase (in millions)			Average price per share
	Second quarter ASR arrangement (1)		6-Nov-14		$	125			1,290,481		$	75		$	58.12
	Fourth quarter ASR arrangement (2)		8-Nov-15		302				2,864,712		202			$	70.55
	Total				$	427			4,155,193		$	277		$	66.69
	(1)	In the third quarter of fiscal 2015, the Company received an additional 31,830 shares and a refund of the $50 million prepayment in cash upon settlement of the second quarter ASR arrangement.
	(2)	Consideration includes transaction costs. The final number of shares ultimately delivered and therefore the average price paid per share will be determined at maturity of the fourth quarter ASR arrangement. CSC may receive a refund of $100 million prepayment in cash or shares upon settlement of the fourth quarter ASR arrangement.
	Treasury Stock Transactions
	In fiscal 2015, 2014, and 2013 the Company accepted 121,350, 168,739, and 91,921 shares of its common stock, respectively, in lieu of cash in connection with exercise of stock options. In fiscal 2015, 2014, and 2013, the Company accepted 330,037, 160,753, and 209,056 shares of its common stock, respectively, in lieu of cash in connection with the tax withholdings associated with the release of common stock upon vesting of restricted stock and restricted stock units.
	Dividends
	During fiscal 2015, the Company declared cash dividends per common share of $0.92 totaling $131 million. Of the total dividends declared, $32 million was declared but unpaid as of April 3, 2015. Such dividends were paid on April 24, 2015.
	During fiscal 2014, the Company declared cash dividends per common share of $0.80 totaling $118 million. Of the total dividends declared, $29 million was unpaid as of March 28, 2014.
	Similarly, during fiscal 2013, the Company declared cash dividends per common share of $0.80 totaling $123 million. Of the total dividends declared, $30 million was unpaid as of March 29, 2013.
	Accumulated Other Comprehensive Loss (Income)
	The following tables show the activity in the components of other comprehensive loss, including the respective tax effects, and reclassification adjustments for the years ended April 3, 2015, March 28, 2014, and March 29, 2013, respectively:
	For the year ended April 3, 2015		Before Tax Amount				Tax Impact Increase/(Decrease)			Net of Tax Amount
	(Amounts in millions)
	Foreign currency translation adjustments		$	(307	)		$	(3	)	$	(310	)
	Loss on foreign currency forward and option contracts		(2		)		—			(2		)
	Pension and other post-retirement benefit plans adjustments:
	Prior service credit (1)		94				(37		)	57
	Amortization of transition obligation (2)		1				—			1
	Amortization of prior service (cost) (2)		(23		)		7			(16		)
	Total pension and other post-retirement benefit plans		72				(30		)	42
	Total other comprehensive loss		$	(237	)		$	(33	)	$	(270	)
	(1)	Represents the result of remeasurement of the U.S. OPEB benefit obligations (see Note 15).
	(2)	Represents current period reclassification out of accumulated other comprehensive loss. The reclassified amounts are included in the net periodic pension cost and net periodic post-retirement benefit cost (see Note 15).
	For the year ended March 28, 2014		Before Tax Amount				Tax Impact Increase/(Decrease)			Net of Tax Amount
	(Amounts in millions)
	Foreign currency translation adjustments		$	(79	)		$	(2	)	$	(81	)
	Pension and other post-retirement benefit plans:
	Prior service credit (1)		265				—			265
	Amortization of transition obligation (2)		1				—			1
	Amortization of prior service (cost) (2)		(5		)		1			(4		)
	Foreign currency exchange (loss) gain		2				—			2
	Total pension and other post-retirement benefit plans		263				1			264
	Total other comprehensive income (loss)		$	184			$	(1	)	$	183
	(1)	Represents the result of remeasurement of the pension liability associated primarily with plans in the U.K.(see Note 15).
	(2)	Represents current period reclassification out of accumulated other comprehensive loss. The reclassified amounts are included in the net periodic pension cost and net periodic post-retirement benefit cost (see Note 15).
	For the year ended March 29, 2013		Before Tax Amount				Tax Impact Increase/(Decrease)			Net of Tax Amount
	(Amounts in millions)
	Foreign currency translation adjustments		$	(104	)		$	12		$	(92	)
	Pension and other post-retirement benefit plans:
	Prior service (cost)		27				(8		)	19
	Amortization of transition obligation (1)		1				—			1
	Amortization of prior service (costs) (1)		(1		)		1			—
Foreign currency exchange loss		—				(8		)	(8		)
Total pension and other post-retirement benefit plans		27				(15		)	12
Total other comprehensive loss		$	(77	)		$	(3	)	$	(80	)
(1)	Represents current period reclassification out of accumulated other comprehensive loss. The reclassified amounts are included in the net periodic pension cost and net periodic post-retirement benefit cost (see Note 15).
The following table shows the changes in accumulated other comprehensive gain (loss) for fiscal 2015, 2014, and 2013:
(Amounts in millions)		Foreign Currency Translation Adjustments				Cash Flow Hedge			Pension and Other Postretirement Benefit Plans			Accumulated Other Comprehensive Income (Loss)
Balance at March 30, 2012		$	167			$	—		21			188
Current-period other comprehensive (loss), net of taxes		(92		)		—			11			(81		)
Amounts reclassified from accumulated other comprehensive loss, net of taxes		—				—			1			1
Balance at March 29, 2013		$	75			$	—		33			108
Current-period other comprehensive income (loss), net of taxes		(81		)		—			267			186
Amounts reclassified from accumulated other comprehensive loss, net of taxes		—				—			(15		)	(15		)
Balance at March 28, 2014		$	(6	)		$	—		$	285		$	279
Current-period other comprehensive (loss) income, net of taxes		(310		)		(2		)	57			(255		)
Amounts reclassified from accumulated other comprehensive loss, net of taxes		—				—			(3		)	(3		)
Balance at April 3, 2015		$	(316	)		$	(2	)	$	339		$	21

Stock_Incentive_Plans

Stock Incentive Plans	12 Months Ended
	Apr. 03, 2015
Stock Incentive Plans [Abstract]
Stock Incentive Plans	Stock Incentive Plans
	Employee Incentives
	The Company has two stock incentive plans which authorize the issuance of stock options, restricted stock and other stock-based incentives to employees upon terms approved by the Compensation Committee of the Board of Directors. The Company’s overall stock-based compensation granting practice has not changed significantly year over year. The Company issues authorized but previously unissued shares upon the exercise of stock options, the granting of restricted stock awards and the settlement of restricted stock units (RSU). There were no restricted stock awards outstanding during fiscal years 2015, fiscal 2014, and fiscal 2013. As of April 3, 2015, 15,959,036 shares of CSC common stock were available for the grant of future stock options, restricted stock or other stock-based incentives to employees.
	The Company recognized stock-based compensation expense for fiscal 2015, fiscal 2014, and fiscal 2013 as follows:
			Twelve Months Ended
	(Amounts in millions)		April 3, 2015				March 28, 2014				March 29, 2013
	Cost of services		$	19			$	25			$	22
	Selling, general and administrative		49				48				27
	Total		$	68			$	73			$	49
	Total, net of tax		$	43			$	46			$	31
	Stock-based compensation for fiscal 2015 decreased $5 million when compared to the prior year. The decrease was primarily due to $25 million of lower expense on account of higher forfeitures for terminating employees. The decrease was partially offset by $12 million of fiscal 2015 option and RSU grants, impacted by the Company's higher stock price, and $8 million higher expense associated with the RSUs granted to the employees of ServiceMesh, which was acquired in the third quarter of fiscal 2014.
	The $24 million increase in the stock-based compensation expense during fiscal 2014 was primarily due to adjustments for actual and expected achievement of the specified performance criteria for certain performance-based RSUs that increased the expense by $21 million, and due to an increased number of RSUs granted during fiscal 2014 at a higher CSC stock price, which increased expense by $13 million. Included in the $13 million increase was an increase of $6 million due to RSUs granted to ServiceMesh employees. These increases in expense were partially offset by an adjustment to reflect actual forfeitures of stock options and RSUs during fiscal 2014 that reduced expense by $9 million.
	The Company uses the Black-Scholes-Merton model in determining the fair value of stock options granted. In determining the overall risk-free interest rate for fiscal 2015, a range of interest rates from 1.54% to 2.35% was applied depending on the expected life of the grant. The range of volatility used for fiscal 2015 was 30% to 34%. The dividend yield assumption was based on the respective fiscal year dividend payouts. Forfeitures are estimated based on historical experience and adjustments are made annually to reflect actual forfeiture experience.
	The weighted average grant date fair values of stock options granted during fiscal 2015, fiscal 2014, and fiscal 2013 were $18.32, $13.34, and $7.37 per share, respectively. In calculating the compensation expense for its stock incentive plans, the Company used the following weighted average assumptions:
		Fiscal Year
		2015			2014			2013
	Risk-free interest rate	2.07	%		1.32	%		1.15	%
	Expected volatility	33	%		34	%		36	%
	Expected term (in years)	6.22			6.48			6.59
	Dividend yield	1.5	%		1.71	%		2.86	%
	During fiscal 2015, fiscal 2014, and fiscal 2013, the Company's actual tax benefit realized for tax deductions from exercising stock options was of $51 million, $26 million, and $9 million, respectively, and an excess tax benefit of $18 million, $8 million, and $3 million, respectively, related to all of its stock incentive plans.
	Stock Options
	The Company’s standard vesting schedule for stock options is one-third on each of the first three anniversaries of the grant date. Stock options are generally granted for a term of ten years. Information concerning stock options granted under stock incentive plans during fiscal 2015, fiscal 2014, and fiscal 2013 is as follows:
		Number			Weighted				Weighted		Aggregate
		of Option Shares			Average				Average		Intrinsic
					Exercise				Remaining		Value
					Price				Contractual		(In millions)
									Term
	Outstanding as of March 30, 2012	17,733,562			$	46.13			5.08		$	1
	Granted	3,707,172			27.46
	Exercised	(1,497,686	)		39.27						10
	Canceled/Forfeited	(1,113,422	)		35.36
	Expired	(3,689,059	)		45.28
	Outstanding as of March 29, 2013	15,140,567			43.23				5.45		113
	Granted	2,199,369			45.2
	Exercised	(5,015,849	)		44.1						53
	Canceled/Forfeited	(1,247,511	)		33.89
	Expired	(1,246,965	)		52.05
	Outstanding as of March 28, 2014	9,829,611			43.3				5.73		167
	Granted	1,331,862			60.89
	Exercised	(4,476,715	)		45.19						82
	Canceled/Forfeited	(1,057,332	)		42.67
	Expired	(71,117	)		45.53
	Outstanding as of April 3, 2015	5,556,309			46.08				5.93		107
	Vested and expected to vest in the future as of April 3, 2015	5,436,550			45.84				5.87		106
	Exercisable as of April 3, 2015	3,318,051			43.19				4.2		74
			April 3, 2015
			Options Outstanding									Options Exercisable
	Range of Option Exercise Price		Number			Weighted				Weighted		Number	Weighted
			Outstanding			Average				Average		Exercisable	Average
						Exercise				Remaining			Exercise
						Price				Contractual			Price
										Term
	$23.06 - $44.65		2,706,562			$	36.39			6.64		1,675,961	$	34.65
	$44.89 - $60.90		2,756,837			55.03				5.15		1,633,753	51.85
	$61.93 - $63.06		92,910			62.62				8.58		8,337	62.36
			5,556,309									3,318,051
	The total grant date fair value of stock options vested during fiscal 2015, fiscal 2014, and fiscal 2013, was $9 million, $14 million, and $20 million, respectively. The cash received from stock options exercised during fiscal 2015, fiscal 2014, and fiscal 2013, was $196 million, $214 million, and $55 million, respectively.
	As of April 3, 2015, there was $28 million of unrecognized compensation expense related to unvested stock options, net of expected forfeitures. The cost is expected to be recognized over a weighted-average period of 1.69 years.
	Restricted Stock Units
	RSUs consist of equity awards with the right to receive one share of common stock of the Company issued at a price of $0. RSUs generally vest over periods of three to five years. Upon the settlement date, RSUs are settled in shares of CSC
	common stock and dividend equivalents. If, prior to the vesting of the RSU grant in full, the employee’s status as a full-time employee is terminated, then the RSU grant is automatically canceled on the employment termination date and any unvested shares and dividend equivalents are forfeited.
	Certain executives were awarded service-based RSUs for which the shares are redeemable over the ten anniversaries following the executive's separation from service as a full-time employee, provided the executive complies with certain non-competition covenants during the ten-year period following the executive's separation of service. For certain executives who joined the company in fiscal year 2013 and after, the awards vest at age 62, or 50% of the award vests at age 55 with 5 years' service with an additional 10% vesting each additional year of service up to 10 years of service. Prior to fiscal year 2013, awards vested at age 65 or age 55 with 10 years of service.
	The Company also grants performance-based restricted stock units (PSUs). PSUs, generally vest over period of three years. The number of performance-based RSUs that ultimately vest is dependent upon the Company’s achievement of certain specified financial performance criteria over a three-year period. Awards are settled for shares of CSC common stock and dividend equivalents upon the filing with the SEC of the Annual Report on Form 10-K for the last fiscal year of the performance period if the specified performance criteria is met. Beginning in fiscal 2013, PSU awards granted include the potential for accelerated vesting of 25% of the shares granted after the first and second fiscal years if certain company performance targets are met early. Compensation expense during the performance period is estimated at each reporting date using management's expectation of the probable achievement of the specified performance criteria and is adjusted to the extent the expected achievement changes. In the first quarter of fiscal 2015, shares were settled due to meeting the company performance targets in fiscal year 2014. The probable achievement was also increased to the maximum payout based on management's expectation of meeting the performance criteria resulting in additional expense recognized. In the table below, such awards are reflected at the number of shares originally granted.
Information concerning RSUs (including PSUs) granted under the stock incentive plans during fiscal 2015, fiscal 2014, and fiscal 2013, is as follows:
	Number of			Weighted
	Shares			Average
				Fair Value
Outstanding as of March 30, 2012	1,740,925			$	40.29
Granted	1,724,639			26.12
Settled	(423,321	)		33.17
Canceled/Forfeited	(778,971	)		38.27
Outstanding as of March 29, 2013	2,263,272			31.53
Granted	2,018,416			49.05
Settled	(464,293	)		33.06
Canceled/Forfeited	(629,654	)		38.11
Outstanding as of March 28, 2014	3,187,741			41.34
Granted	1,000,150			60.91
Settled	(829,861	)		40.81
Canceled/Forfeited	(778,355	)		42.62
Outstanding as of April 3, 2015	2,579,675			48.7
As of April 3, 2015, there was $78 million total unrecognized compensation expense related to unvested RSUs,
net of expected forfeitures. The unrecognized compensation expense is expected to be recognized over a weighted-average period of 1.86 years.
Non-employee Director Incentives
The Company has two stock incentive plans which authorize the issuance of stock options, restricted stock and other stock-based incentives to non-employee directors upon terms approved by the Company’s Board of Directors. As of April 3, 2015, 175,300 shares of CSC common stock remained available for the grant to nonemployee directors of future RSUs or other stock-based incentives.
RSU awards to non-employee directors are granted at a price of $0. For RSU awards granted in fiscal 2014, RSUs vest and settle at the earlier of (i) the one-year anniversary of the grant date, or (ii) the date of the Company's first Annual Meeting of the Stockholders held after the grant date. Alternatively, settlement of the RSU may be deferred per election of the non-employee director. For awards granted in fiscal 2013 and prior, vested RSUs are automatically settled for shares of CSC common stock and dividend equivalents when the non-employee director ceases to be a director of the Company.
The number of shares to be settled is equal to the number of RSUs that are vested at the time the holder ceases to be a director. At the holder’s election, the RSUs may be settled (i) in their entirety, upon the day the holder ceases to be a director, or (ii) in substantially equal amounts upon the first five, ten or fifteen anniversaries of such termination of service.
Information concerning RSUs granted to non-employee directors during fiscal 2015, fiscal 2014, and fiscal 2013 is as follows:
	Number of			Weighted
	Shares			Average
				Fair Value
Outstanding as of March 30, 2012	196,361			$	42.81
Granted	42,800			30.3
Settled	(50,716	)		43.3
Canceled/Forfeited	—			—
Outstanding as of March 29, 2013	188,445			39.85
Granted	25,000			51.55
Settled	(29,299	)		35.81
Canceled/Forfeited	—			—
Outstanding as of March 28, 2014	184,146			42.07
Granted	22,100			59.63
Settled	(62,260	)		44.1
Canceled/Forfeited	—			—
Outstanding as of April 3, 2015	143,986			43.88

Cash_Flows

Cash Flows	12 Months Ended
	Apr. 03, 2015
Cash Flow - Supplemental Disclosure [Abstract]
Cash Flows	Cash Flows
	Cash payments for interest on indebtedness and cash payments for taxes on income are as follows:
		Twelve Months Ended
	(Amounts in millions)	April 3, 2015		March 28, 2014		March 29, 2013
	Interest	$	144	$	140	$	186
	Taxes on income, net of refunds	146		122		214
	Non-cash investing activities include the following:
		Twelve Months Ended
	(Amounts in millions)	April 3, 2015		March 28, 2014		March 29, 2013
	Capital expenditures in accounts payable and accrued expenses	$	39	$	45	$	32
	Capital expenditures through capital lease obligations	24		149		181
	Assets acquired under long-term financing	64		49		26
	Non-cash financing activities for the years ended April 3, 2015, March 28, 2014 and March 29, 2013 included common stock dividends declared but not yet paid of $32 million, $29 million and $30 million, respectively. Non-cash financing activities also included shares repurchased under the stock repurchase plan but not settled of $6 million and $22 million as of March 28, 2014 and March 29, 2013, respectively. All shares repurchased under the stock repurchase plan in fiscal 2015 were settled as of April 3, 2015.

Other_Income_Expense_Net

Other (Income) Expense, Net	12 Months Ended
	Apr. 03, 2015
Other Income and Expenses [Abstract]
Other (Income) Expense, Net	Other (Income) Expense, Net
	The components of other (income) expense, net for fiscal 2015, fiscal 2014, and fiscal 2013 are:
		Twelve Months Ended
	(Amounts in millions)	April 3, 2015		March 28, 2014		March 29, 2013
	Foreign currency loss	$	11	$	15	$	17
	Other losses (gains)	1		3		(42		)
	Total	$	12	$	18	$	(25	)
	Foreign currency losses are due to the impact of movement in foreign currency exchange rates on the Company’s foreign currency denominated assets and liabilities, the related hedges including options to manage its exposure to economic risk, and the cost of the Company’s hedging program.
	For fiscal years 2015, 2014, and 2013 the net foreign currency losses were $11 million, $15 million, and $17 million, respectively, including forward point (income) expense of $(6) million, $(2) million, and $5 million, respectively. The foreign currency losses were primarily a result of unfavorable movements of foreign currency exchange rates used to fair value the Company's foreign currency option and forward contracts and the related foreign currency denominated assets and liabilities.
	Other gains for fiscal 2013 primarily included a gain of $38 million related to the sale of Paxus, the Company's Australian staffing business.

Segment_and_Geographic_Informa

Segment and Geographic Information	12 Months Ended
	Mar. 28, 2014
Segment and Geographic Information [Abstract]
Segment and Geographic Information	Segment and Geographic Information
	CSC is a leading provider of IT and professional services and solutions. The Company’s reportable segments are as follows:
	•	Global Business Services (GBS) - GBS provides end-to-end applications services; consulting; big data services; and industry-aligned software and solutions to enterprise clients around the world. GBS manages and industrializes clients' application ecosystem through its Applications Services offering. The Company has formed a number of strategic partnerships with leading technology companies such as HCL Technologies and SAP to deliver world-class solutions to its customers. These partnerships will enable clients to modernize and move enterprise workloads to next generation cloud infrastructure, while leveraging the benefits of mobility, social networking and big data. The GBS consulting business assists clients in achieving greater value from current IT assets as well as aiding in the direction of future IT investments. GBS software and solutions include vertically-aligned solutions and process-based intellectual property. Clients include major global enterprises in the insurance, banking, healthcare, life sciences, manufacturing and a host of diversified industries. Key competitive differentiators for GBS include its global scale, depth of industry expertise, strong partnerships with leading technology companies, vendor and product independence and end-to-end capabilities. Changing business issues such as globalization, fast-developing economies, government regulation, and growing concerns around risk, security, and compliance drive demand for these GBS offerings.
	•	Global Infrastructure Services (GIS) – GIS provides managed and virtual desktop solutions, unified communications and collaboration services, data center management, cloud services, cyber security, compute and managed storage solutions to commercial clients globally. GIS also delivers next-generation hybrid Cloud infrastructure solutions to clients. The company integrates public cloud offerings from Amazon Web Services, IBM, Microsoft, and VMware, with its industry-leading private cloud solution, BizCloud. The CSC Agility Platform enables enterprises to manage, monitor, and automate applications over heterogeneous and hybrid clouds. The GIS portfolio of standard offerings delivers measurable results while reducing business risk and operational costs for clients. Collaboration with key alliance partners helps CSC to determine the best technology road map for clients and opportunities to differentiate solutions, expand market reach, augment capabilities, and jointly deliver impactful solutions.
	•	North American Public Sector (NPS) – NPS delivers IT, mission, and operations-related services to the Department of Defense, civil agencies of the U.S. federal government, as well as state and local government agencies. Commensurate with the Company's strategy of leading the next generation of IT services, NPS is leveraging our commercial best practices and next-generation offerings to bring more cost-effective IT solutions to government agencies which are seeking efficiency through innovation. This approach is designed to yield lower implementation and operational costs as well as a higher standard of delivery excellence. Demand for NPS offerings are driven by evolving government priorities such as: 1) migration to next-generation IT solutions, which includes hybrid cloud infrastructure, application modernization and orchestration, 2) mission intelligence driven by big data solutions, 3) health IT and informatics, and 4) cyber security.
	The following table summarizes the operating results by reportable segment:
	Twelve Months Ended
	(Amounts in millions)		GBS			GIS			NPS			Corporate				Total
	April 3, 2015
	Revenues		$	4,036		$	4,080		$	4,057		$	—			$	12,173
	Operating income (loss)		405			162			591			(70		)		1,088
	Depreciation and amortization		149			673			137			18				977
	March 28, 2014
	Revenues		$	4,321		$	4,578		$	4,099		$	—			$	12,998
	Operating income (loss)		574			382			524			(64		)		1,416
	Depreciation and amortization		152			704			148			14				1,018
	March 29, 2013
	Revenues		$	4,844		$	4,689		$	4,662		$	—			$	14,195
	Operating income (loss)		401			162			511			(113		)		961
	Depreciation and amortization		176			722			158			14				1,070
	Operating income (loss) provides useful information to the Company’s management for assessment of the Company’s performance and results of operations, and is one of the financial measures utilized to determine executive compensation.
	Reconciliation of consolidated operating income to (loss) income from continuing operations before taxes is as follows:
			Twelve Months Ended
	(Amounts in millions)		April 3, 2015			March 28, 2014			March 29, 2013
	Operating income (1)		$	1,088		$	1,416		$	961
	Corporate G&A		(242		)	(263		)	(293		)
	Pension & OPEB actuarial (losses) gains		(782		)	259			(297		)
	SEC settlement related charges and other (2)		(200		)	—			—
	Interest expense		(148		)	(147		)	(183		)
	Interest income		20			16			22
	Other income (expense), net		(12		)	(18		)	25
	(Loss) income from continuing operations before taxes		$	(276	)	$	1,263		$	235
	(1) The impact of the change in pension accounting policy was an increase in operating income of $263 million, $94 million, and $83 million for the twelve months ended April 3, 2015, March 28, 2014, and March 29, 2013, respectively.
	(2) This item primarily relates to the SEC investigation settlement (see Note 2).
	Revenue by country is based on the location of the selling business unit. Property and equipment, total assets and capital expenditures (purchase of property and equipment) information is based on the physical location of the asset. Geographic revenue, property and equipment, net, total assets, and capital expenditures for the three years ended April 3, 2015, March 28, 2014, and March 29, 2013, are as follows:
			April 3, 2015
	(Amounts in millions)		United States			United Kingdom			Other Europe			Other International			Total
	Revenue		$	7,322		$	1,721		$	1,928		$	1,202		$	12,173
	Property and Equipment, net		978			257			176			172			1,583
	Total Assets		5,956			1,620			1,189			1,436			10,201
	Capital Expenditures		225			58			73			50			406
			March 28, 2014
			United States			United Kingdom			Other Europe			Other International			Total
	Revenue		$	7,766		$	1,699		$	2,150		$	1,383		$	12,998
	Property and Equipment, net		1,177			335			253			266			2,031
	Total Assets		6,728			1,614			1,473			1,574			11,389
	Capital Expenditures		333			89			85			88			595
			March 29, 2013
			United States			United Kingdom			Other Europe			Other International			Total
	Revenue		$	8,571		$	1,729		$	2,193		$	1,702		$	14,195
	Property and Equipment, net		1,273			320			217			374			2,184
	Total Assets		6,454			1,389			1,487			1,921			11,251
	Capital Expenditures		290			70			80			128			568
	The Company derives a significant portion of its revenues from departments and agencies of the U.S. federal government, which accounted for 31%, 30%, and 31% of the Company’s revenues for fiscal 2015, fiscal 2014, and fiscal 2013, respectively. As of April 3, 2015 and March 28, 2014, approximately 30% and 25% of the Company’s net accounts receivables was due from the U.S. federal government. No single commercial customer exceeded 10% of the Company’s revenues during fiscal 2015, fiscal 2014, or fiscal 2013.

Restructuring_Costs

Restructuring Costs	12 Months Ended
	Apr. 03, 2015
Restructuring Costs [Abstract]
Restructuring Costs	Restructuring Costs
	The Company recorded restructuring costs of $261 million, $76 million, and $264 million for fiscal years 2015, 2014, and 2013, respectively.
	Fiscal 2015 Plan
	In June 2014, the Company initiated restructuring actions (the Fiscal 2015 Plan) across its business segments. The objectives of the Fiscal 2015 Plan are to further reduce headcount in order to align resources to support business needs. Total restructuring costs for the Fiscal 2015 Plan recorded during fiscal 2015 were $273 million, and consisted mainly of termination benefits associated with the workforce reductions, including $10 million of pension benefit augmentation. As part of this plan, the Company took a restructuring charge of $246 million in the fourth quarter of fiscal 2015 to accelerate the efforts to optimize the workforce in high cost markets, particularly in Europe, address its labor pyramid and right-shore its labor mix.
	The composition of the restructuring liability for the Fiscal 2015 Plan as of April 3, 2015 is as follows:
	(Amounts in millions)		Restructuring liability as of March 28, 2014			Costs expensed in fiscal 2015			Less: costs not affecting restructuring liability (1)			Cash Paid				Other(2)			Restructuring liability as of April 3, 2015
	Workforce reductions		$	—		$	265		$	(10	)	$	(21	)		$	(4	)	$	230
	Facilities costs		—			8			(3		)	—				—			$	5
			$	—		$	273		$	(13	)	$	(21	)		$	(4	)	$	235
	(1)	Charges primarily consist of pension benefit augmentations and are recorded as a pension liability.
	(2)	Foreign currency translation adjustments.
	Fiscal 2013 Plan
	In September 2012, the Company initiated restructuring actions (the Fiscal 2013 Plan) across its business segments. The objectives of the Fiscal 2013 Plan were to (i) further increase the use of lower cost off-shore resources, (ii) reduce headcount in order to align resources to support business needs, including the assessment of management span of control and layers and (iii) optimize utilization of facilities. Actions under the Fiscal 2013 Plan commenced in September 2012 and continued through fiscal 2014. The expense reduction in fiscal 2015 was due to cancellation of a portion of a restructuring plan in a region, as well as revisions on plans that were executed at lower than expected costs.
	Total restructuring costs for the Fiscal 2013 Plan recorded during fiscal 2015, 2014, and 2013 were $(12) million, $74 million, and $233 million, respectively, including pension benefit augmentations of $(7) million, $22 million, and $21 million, respectively, that are owed to certain employees in accordance with legal or contractual obligations, and which will be paid out over several years as part of normal pension distributions. The total restructuring costs recorded during fiscal 2013 also included $17 million of professional fees incurred for restructuring related consultancy.
	The composition of the restructuring liability for the Fiscal 2013 Plan as of April 3, 2015 is as follows:
	(Amounts in millions)		Restructuring liability as of March 28, 2014			Costs expensed in fiscal 2015			Less: costs not affecting restructuring liability (1)			Cash paid				Other(2)			Restructuring liability as of April 3, 2015
	Workforce reductions		$	70		$	(13	)	$	7		$	(57	)		$	(4	)	$	3
	Facilities costs		13			1			—			(8		)		—			6
			$	83		$	(12	)	$	7		$	(65	)		$	(4	)	$	9
	(1)    Charges primarily consist of pension benefit augmentations and are recorded as a pension liability.
	(2)    Foreign currency translation adjustments.
	The composition of the restructuring liability for the Fiscal 2013 Plan as of March 28, 2014 was as follows:
	(Amounts in millions)		Restructuring liability as of March 29, 2013			Costs expensed in fiscal 2014			Less: costs not affecting restructuring liability (1)			Cash paid				Other(3)			Restructuring liability as of March 28, 2014
	Workforce reductions		$	155		$	63		$	(22	)	$	(130	)		$	4		$	70
	Facilities costs		10			11			—			(8		)		—			13
	Other(2)		11			—			—			(11		)		—			—
			$	176		$	74		$	(22	)	$	(149	)		$	4		$	83
	(1)	Charges primarily consist of pension benefit augmentations and are recorded as a pension liability.
	(2)	Other direct costs associated with the restructuring program.
	(3)	Foreign currency translation adjustments.
	Fiscal 2012 Plan
	In March 2012, the Company initiated restructuring actions (the Fiscal 2012 plan) primarily impacting its GIS segment. The objectives of the Fiscal 2012 plan were to (i) align the Company's workforce across various geographies with business needs, (ii) increase use of lower cost off-shore resources, and (iii) optimize utilization of facilities. Actions under the Fiscal 2012 plan commenced in March 2012 and were carried out in fiscal 2013 and fiscal 2014.
	The restructuring costs for the Fiscal 2012 plan recorded during fiscal 2015, 2014, and 2013 were $0 million, $2 million, and $31 million, respectively, and were associated primarily with employee terminations.
	The composition of the restructuring liability for the Fiscal 2012 plan as of April 3, 2015 is as follows:
	(Amounts in millions)		Restructuring liability as of March 28, 2014		Costs expensed in fiscal 2015			Less: costs not affecting restructuring liability		Cash paid		Other (1)			Restructuring liability as of April 3, 2015
	Facilities costs		2		—			—		(2	)	1			1
	(1) Foreign currency translation adjustments.
	The composition of the restructuring liability for the Fiscal 2012 plan as of March 28, 2014 was as follows:
	(Amounts in millions)		Restructuring liability as of March 29, 2013			Costs expensed in fiscal 2014			Cash paid			Other (1)				Restructuring liability as of March 28, 2014
	Workforce reductions		$	9		$	2		$	(10	)	$	(1	)		$	—
	Facilities costs		5			—			(3		)	—				2
	Total		$	14		$	2		$	(13	)	$	(1	)		$	2
	(1) Foreign currency translation adjustments and reclassification of $1 million to liabilities held for sale related to the small software business that CSC committed to sell in fiscal 2014 and completed in fiscal 2015 (see Note 5).
	The composition of restructuring costs by segment for fiscal years 2015, 2014, and 2013 is as follows:
			Twelve Months Ended
	(Amounts in millions)		3-Apr-15			28-Mar-14			29-Mar-13
	GBS		$	137		$	46		$	87
	GIS		114			28			142
	NPS		5			2			13
	Corporate		5			—			22
	Total		$	261		$	76		$	264
	Of the total $245 million restructuring liability as of April 3, 2015, $244 million is included in accrued expenses and other current liabilities and $1 million is included in other long-term liabilities. Of the total $85 million restructuring liability as of March 28, 2014, $83 million was included in accrued expenses and other current liabilities and $2 million was included in other long-term liabilities.
	The composition of restructuring expenses for fiscal years 2015, 2014, and 2013 by financial statement line item is as follows:
			Twelve Months Ended
	(Amounts in millions)		April 3, 2015			March 28, 2014			March 29, 2013
	Cost of services		$	253		$	70		$	238
	Selling, general and administrative		8			6			26
	Total		$	261		$	76		$	264

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Apr. 03, 2015
Commitments and Contingencies [Abstract]
Commitments and Contingencies	Settlement of SEC Investigation
	As previously disclosed, on January 28, 2011, the Company was notified by the Division of Enforcement of the SEC that it had commenced a formal civil investigation. That investigation covered a range of matters as previously disclosed by the Company, including the Company’s prior use in fiscal years 2009-2012 of the terms of ongoing contract negotiations with the U.K. National Health Service (the NHS) in developing its assumptions and judgments with respect to the margin used in recognizing profit under the percentage of completion accounting method and in evaluating the recoverability of NHS contract assets, as well as the Company’s prior disclosures concerning such matters. On May 2, 2011, the Audit Committee commenced an independent investigation and, in August 2012, determined in that its independent investigation was complete. The Audit Committee instructed its independent counsel to cooperate with the SEC's Division of Enforcement by completing production of documents and providing any further information requested by the SEC's Division of Enforcement.
	As a result of findings by the Audit Committee’s independent investigation, the Company has previously acknowledged certain historic errors and irregularities relating to accounting entries arising from the Nordics region, Australia, and the Company’s contractual relationship with the NHS, self-reported these errors and irregularities to the SEC’s Division of Enforcement, and made out of period adjustments to its financial statements as reported in its past filings. In addition, as previously disclosed, certain personnel in certain foreign operations were reprimanded, suspended, terminated and/or resigned and additional controls were implemented. Based on recommendations from the Audit Committee’s independent investigation and discussions with the SEC's staff concerning the SEC's investigation, the Company also instituted comprehensive enhancements beginning in 2011 to its compliance, financial and disclosure controls, and to the function of internal audit. In doing so, the Company made significant changes to prevent the type of misconduct identified by the Audit Committee’s independent investigation from recurring.  The Company also previously took significant steps to enhance its compliance culture and to remediate any deficiencies.
	During the third quarter of fiscal 2015, the Company reached an understanding with the staff of the SEC regarding a settlement of a formal civil investigation by the SEC that commenced on January 28, 2011 and covered a range of matters, as previously disclosed, including certain of the Company’s prior disclosures and accounting determinations. As part of the Company’s understanding with the staff of the SEC regarding terms of the settlement, the Company agreed to pay a penalty of $190 million and to implement a review of its compliance policies through an independent compliance consultant. The Company recorded a pre-tax charge of $197 million for the penalty and related expenses in fiscal 2015.
	During the first quarter of fiscal 2016, the agreed-upon settlement with the SEC was formally approved by the SEC and became effective on June 5, 2015 and the Company has agreed, in addition to the payment of the fine and the engagement of the compliance consultant referenced above, to cease and desist from further violations of the anti-fraud, reporting, and books-and-records provisions of the U.S. securities laws. As part of the settlement, the Company has neither admitted nor denied the SEC’s allegations concerning such matters. Further, as part of the settlement, on June 5, 2015, the Company filed its Form 10-K/A in respect of its fiscal year ended March 28, 2014 in order to restate its financial statements for fiscal 2012 and its summary financial results for fiscal 2011 and 2010 reflected in the five year financial data table, all as previously set forth in the Company’s originally filed Form 10-K for its 2014 fiscal year. The restatement had no impact on the Company’s Consolidated Balance Sheets, Statements of Operations, Statements of Comprehensive Income (Loss), Statements of Cash Flows and Statements of Changes in Equity for fiscal 2013 or fiscal 2014 or on its financial statements for fiscal 2015.
	Commitments and Contingencies
	Commitments
	The Company has operating leases for the use of certain real estate and equipment. Substantially all operating leases are non-cancelable or cancelable only by the payment of penalties. All lease payments are based on the lapse of time but include, in some cases, payments for insurance, maintenance and property taxes. There are no purchase options on operating leases at favorable terms, but most real estate leases have one or more renewal options. Certain leases on real estate are subject to annual escalations for increases in utilities and property taxes. Lease rental expense amounted to $209 million, $280 million, and $319 million, for the years ended April 3, 2015, March 28, 2014, and March 29, 2013, respectively. In addition, the Company also has $22 million of sublease income to be received through fiscal 2020.
	Minimum fixed rentals required for the next five years and thereafter under operating leases in effect at April 3, 2015, are as follows:
	Fiscal Year
	(Amounts in millions)	Real Estate		Equipment
	2016	$	134	$	26
	2017	111		13
	2018	71		4
	2019	50		2
	2020	33		—
	Thereafter	25		—
		$	424	$	45
	The Company has signed long-term purchase agreements with certain software, hardware, telecommunication and other service providers to obtain favorable pricing and terms for services and products that are necessary for the operations of business activities. Under the terms of these agreements, the Company is contractually committed to purchase specified minimums over periods ranging from one to six years. If the Company does not meet the specified minimums, the Company would have an obligation to pay the service provider all or a portion of the shortfall. Minimum purchase commitments are $331 million in fiscal 2016, $308 million in fiscal 2017, $178 million in fiscal 2018, $8 million in fiscal 2019, $8 million in fiscal 2020, and $7 million thereafter.
	In the normal course of business, the Company may provide certain clients, principally governmental entities, with financial performance guarantees, which are generally backed by stand-by letters of credit or surety bonds. In general, the Company would only be liable for the amounts of these guarantees in the event that nonperformance by the Company permits termination of the related contract by the Company’s client. As of April 3, 2015, the Company had $81 million of outstanding letters of credit and $28 million of surety bonds relating to these performance guarantees. The Company believes it is in compliance with its performance obligations under all service contracts for which there is a financial performance guarantee, and the ultimate liability, if any, incurred in connection with these guarantees will not have a material adverse effect on its consolidated results of operations or financial position.
	The Company also uses stand-by letters of credit, in lieu of cash, to support various risk management insurance policies. These letters of credit represent a contingent liability and the Company would only be liable if it defaults on its payment obligations towards these policies. As of April 3, 2015, the Company had $42 million of outstanding stand-by letters of credit. Generally, such guarantees have a one-year term and are renewed annually.
	The following table summarizes the expiration of the Company’s financial guarantees and stand-by letters of credit outstanding as of April 3, 2015:
	(Amounts in millions)	Fiscal 2016		Fiscal 2017		Fiscal 2018 and thereafter		Total
	Surety bonds	$	28	$	—	$	—	$	28
	Letters of credit	47		2		32		81
	Stand-by letters of credit	39		—		3		42
	Total	$	114	$	2	$	35	$	151
	The Company generally indemnifies licensees of its proprietary software products against claims brought by third parties alleging infringement of their intellectual property rights (including rights in patents (with or without geographic limitations), copyright, trademarks and trade secrets). CSC’s indemnification of its licensees relates to costs arising from court awards, negotiated settlements and the related legal and internal costs of those licensees. The Company maintains the right, at its own costs, to modify or replace software in order to eliminate any infringement. Historically, CSC has not incurred any significant costs related to licensee software indemnification.
	Contingencies
	As previously disclosed, on January 28, 2011, the Company was notified by the Division of Enforcement of the SEC that it had commenced a formal civil investigation. That investigation covered a range of matters as previously disclosed by the Company, including certain of the Company’s prior disclosures and accounting determinations. During the first quarter of fiscal 2016, the Company’s previously agreed upon settlement with the SEC was formally approved by the SEC and became effective on June 5, 2015. For additional information, see Note 2.
	On March 1, 2012, the Company was competitively awarded the Maryland Medicaid Enterprise Restructuring Project (“MERP”) contract by the State of Maryland (the State) to modernize the Medicaid Management Information System ("MMIS"), a database of Medicaid recipients and providers used to manage Medicaid reimbursement claims. The MERP contract is predominately fixed price. Also, since awarded, federal government-mandated Medicaid information technology standards have been in considerable flux. The State has directed the Company to include additional functionality in the design to incorporate new federal mandates and guidance promulgated after the base scope of the Contract was finalized. Further, the State has declined to approve contract modifications to compensate the Company for the additional work.
	As a result of the State’s refusal to amend the MERP contract and equitably adjust the compensation to be paid to the Company and, in accordance with prescribed State statutes and regulations, the Company timely filed a certified contract claim with the State in the total estimated amount of approximately $61 million on September 27, 2013 (Contract Claim #1). On February 14, 2014, the Company filed Contract Claim #1A, which amends Contract Claim #1, to a claim of approximately $34 million. The Company believes it has valid and reasonable factual and legal bases for Contract Claims #1 and 1A and that the circumstances that have led or will lead to the Company’s additional costs set forth in Contract Claims #1 and 1A were unforeseen as of the operative proposal submission dates and are not the result of deficiencies in CSC’s performance. However, the Company’s position is subject to the ongoing evaluation of new facts and information which may come to the Company’s attention should an appeal of the State's denial of Contract Claims #1 and 1A be litigated before the Maryland State Board of Contract Appeals (the State Board).
	On February 19, 2014, the State provided a recommended decision denying Contract Claims #1 and 1A to the Company. The February 19, 2014 recommended decision was not a final agency determination on the claims. On April 29, 2014, the State provided a final decision, dated April 25, 2014, denying the claims to the Company. On May 28, 2014, the
	Company filed a Notice of Appeal with the State Board, which has exclusive initial jurisdiction of State contract claims concerning breach, performance, modification, or termination of contracts procured under Title II of Maryland's General Procurement Law. The appeal is currently pending before the State Board.
	On August 22, 2014, the State unilaterally suspended performance under the Contract for 90 days. On September 12, 2014, the State modified its August 22nd suspension of the Contract and authorized CSC, during the remainder of the 90-day suspension, to assign up to nine full-time-equivalent staff to perform various analyses of cost and schedule. On November 20, 2014, the State sent a letter extending the Suspension until January 5, 2015, and on January 2, 2015, the State again extended the Suspension until February 20, 2015.
	As the result of the 90-day suspension, as extended, and other actions and inactions by the State in performance of its obligations under and management of the Contract, the Company filed a second set of Claims with the State Board (Claims #2A-D). Claim #2A, in the amount of $77 million, asserts that the Company's contractual undertaking did not include an agreement to receive reduced and delayed payments, and the State's unilateral imposition of such reductions and delays, together with the other factors result in a material change to the Contract entitling the Company to compensation for all costs incurred to date, including all liabilities incurred, and fee, as well as expected profit under the full contract. Alternatively, Claim #2B, in the amount of $65 million, asserts that the Maryland General Assembly's reduction to the appropriations for the MERP Project for fiscal 2015 effectively cancels the MERP Contract, entitling the Company to recover all costs incurred to date including all liabilities incurred, and a reasonable allowance for profit on costs and liabilities. Similarly, Claims #2C, also in the amount of $65 million, asserts that the State's actions, inactions, and decisions amount to a constructive termination for convenience entitling the Company to recover all costs incurred to date including, all liabilities incurred, and reasonable allowance for profit on costs and liabilities. Claim #2D is a claim for suspension costs during the 90-day period of $3 million, including labor costs, facilities costs and other costs needed to remain ready to re-start program. Due to the new claims, management assessed the adequacy of contract reserves and concluded that such reserves were adequate. Since April 2015, CSC and the State have been in negotiations, including the matters in litigation before the State Board, and the contract has been extended to accommodate those discussions.
	On October 27, 2014, the United States District Court for the Southern District of New York unsealed a qui tam complaint that had been filed under seal over two years prior in a case entitled United States of America and State of New York ex rel. Vincent Forcier v. Computer Sciences Corporation and The City of New York, Case No. 1:12-cv-01750-DAB. The original complaint was brought by Vincent Forcier, a former employee of Computer Sciences Corporation, as a private party qui tam relator on behalf of the United States and the State of New York. The relator’s amended complaint, dated November 15, 2012, which remained under seal until October 27, 2014, alleged civil violations of the federal False Claims Act, 31 U.S.C. § 3729 et seq., and New York State’s False Claims Act, NY. Finance L, Art. 13, § 187 et seq., arising out of certain coding methods employed with respect to claims submitted by the Company to Medicaid for reimbursements as fiscal agent on behalf of its client, New York City’s Early Intervention Program (EIP). EIP is a federal program promulgated by the Individuals with Disabilities in Education Act, 20 U.S.C. § 1401 et seq. (IDEA), that provides early intervention services for infants and toddlers who have, or are likely to have, developmental delays.
	Prior to the unsealing of the complaint on October 27, 2014, the United States Attorney’s Office for the Southern District of New York investigated the allegations in the qui tam relator’s complaint. That investigation included requests for information to the Company concerning the Company’s databases, software programs, and related documents regarding EIP claims submitted by the Company on behalf of New York City. The Company produced documents and information that the government requested and cooperated fully with the government’s investigation regarding this matter at all times. In addition, the Company conducted its own investigation of the matter, and openly shared its findings and worked constructively with all parties to resolve the matter. At the conclusion of its investigation, the Company concluded that it had not violated the law in any respect.
	On October 27, 2014, the United States Attorney’s Office for the Southern District of New York and the Attorney General for the State of New York filed complaints-in-intervention on behalf of the United States and the State of New York, respectively. The complaints allege that, from 2008 to 2012, the Company and New York City used the automatic defaulting capabilities of a computerized billing system that the Company developed for New York City’s EIP in order to orchestrate a billing fraud against Medicaid. The New York Attorney General’s complaint also alleges that the Company did not comply with Medicaid requirements regarding submission of claims to private insurance and failed to reimburse Medicaid in certain instances where insurance had paid a portion of the claim. The lawsuits seek damages under the False Claims Act and common law theories in an amount equal to three times the sum of an unspecified amount of damages the United States and New York State allegedly sustained, plus civil penalties together with attorneys’ fees and costs. The Company believes that the allegations are without merit and intends to vigorously defend itself.
	On May 12, 2015, the Company and its wholly owned subsidiary, ServiceMesh Inc. (SMI), filed a civil complaint in the Court of Chancery of the State of Delaware against Eric Pulier (C.A. No. 11011-VCP). The Company acquired SMI on November 15, 2013. The purchase consideration included a cash payment at closing, as well as additional contingent consideration based on a contractually defined multiple of SMI’s revenues during a specified period ending January 31, 2014 (the Earnout Payment), all as set forth in the purchase agreement governing the acquisition. Before the acquisition, Mr. Pulier was the chief executive officer, chairman and one of the largest equity holders of SMI. Following the acquisition, Mr. Pulier became employed by the Company, at which time he executed a retention agreement pursuant to which he received a grant of restricted stock units of the Company and agreed to be bound by the Company’s rules and policies, including the Company’s Code of Business Conduct.
	In March 2015, the Company became aware of, and began its own investigation into the circumstances surrounding, the arrests of two former employees of the Commonwealth Bank of Australia Ltd. (CBA) in connection with payments allegedly received by them, either directly or indirectly, from Mr. Pulier. SMI and CBA had entered into several contracts with each other, including contracts that contributed to the Earnout Payment. In April 2015, the Company was contacted by the Australian Federal Police regarding the alleged payments. The Company is cooperating with and assisting the Australian authorities in their investigation of this matter.
	The Company and SMI’s complaint against Mr. Pulier asserts claims for (i) breach of the purchase agreement, (ii) breach of the implied covenant of good faith and fair dealing in the purchase agreement, (iii) fraud, (iv) fraud by omission, (v) breach of his retention agreement, (vi) breach of the implied covenant of good faith and fair dealing in his retention agreement and (vii) breach of fiduciary duty. The complaint seeks recovery of payments made to Mr. Pulier under the purchase agreement, the value of Mr. Pulier’s vested restricted stock units of the Company granted to him under his retention agreement and the full amount of the Earnout Payment, which was approximately $98 million. Mr. Pulier filed a motion to dismiss the complaint on May 28, 2015, but has not yet filed an opening brief in support of such motion. The Company also has asserted claims for indemnification related to this matter under the purchase agreement. The Company’s investigation of this matter is ongoing.
	Publicity surrounding any of the foregoing matters could have an adverse impact on the Company’s reputation, financial condition, results of operations or cash flows. The Company is unable to estimate with confidence or certainty any possible loss or range of loss associated with these matters at this time.
	In addition to the matters noted above, the Company is currently party to a number of disputes which involve or may involve litigation. The Company accrues a liability when management believes that it is both probable that a liability has been incurred and the amount of loss can be reasonably estimated under ASC 450. The Company believes it has appropriately recognized liabilities for any such matters. Regarding other matters that may involve actual or threatened disputes or litigation, the Company, in accordance with the applicable reporting requirements, provides disclosure of such matters for which the likelihood of material loss is at least reasonably possible.
	The Company also considered the requirements regarding estimates used in the disclosure of contingencies under ASC Subtopic 275-10, Risks and Uncertainties. Based on that guidance, the Company determined that supplemental accrual and disclosure was not required for a change in estimate that involve contingencies because the Company determined that it was not reasonably possible that a change in estimate will occur in the near term. The Company reviews contingencies during each interim period and adjusts its accruals to reflect the impact of negotiations, settlements, rulings, advice of legal counsel, and other information and events pertaining to a particular case.

Subsequent_Events

Subsequent Events	12 Months Ended
	Apr. 03, 2015
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events
	On April 21, 2015, CSC entered into a Master Accounts Receivable Purchase Agreement with The Royal Bank of Scotland, Plc. as Purchaser along with Mitsubishi UFJ Financial Group Ltd. and Bank of Nova Scotia, each as a Participant. The agreement results in the continuous non-recourse true sale of eligible receivables, and establishes a receivables purchase facility (the "Facility") that provides for up to $450 million in funding based on the availability of eligible receivables and the satisfaction of certain conditions. The Facility is an uncommitted facility that has a term of one year, unless terminated earlier. Under the Facility, the Company will sell eligible NPS segment receivables, including both receivables that have already been billed under an invoice and also certain unbilled receivables arising from contracts where the Company has performed work under a “cost plus fixed fee” or “time and materials” contract and other required conditions. The Company expects to use the proceeds from receivables sales under the Facility for general corporate purposes.
	On April 27, 2015, the Company completed the divestiture of its wholly-owned subsidiary, Welkin Associates Limited (Welkin), a provider of systems engineering and technical assistance services to the intelligence community and other Department of Defense clients. Total consideration received was $34 million, and the after-tax gain on sale is estimated to be $14 million. The Welkin business was a part of CSC's NPS segment.
	On May 19, 2015, the Company's board of directors unanimously approved the announcement of a plan to separate (the “Separation”) CSC’s North American Public Sector business into an independent publicly traded company ("CSC - U.S. Public Sector"), the shares of which would be spun off in a distribution to holders of CSC shares on the record date. After the Separation, CSC would focus on serving commercial clients globally and public sector clients outside the United States. The Separation is intended to be tax free for federal income tax purposes. The Company also announced an intention to pay a special dividend of approximately $1.5 billion (or $10.50 per share) in cash concurrent with the Separation. Completion of the Separation will be subject to customary conditions, including final approval of the Company's board of directors, the receipt of a favorable legal opinion from counsel with respect to the tax-free nature of the Separation, and the effectiveness of a Form 10 filing with the U.S. Securities and Exchange Commission.

SCHEDULE_II_VALUATION_AND_QUAL

SCHEDULE II, VALUATION AND QUALIFYING ACCOUNTS	12 Months Ended
	Apr. 03, 2015
Valuation and Qualifying Accounts [Abstract]
SCHEDULE II, VALUATION AND QUALIFYING ACCOUNTS	COMPUTER SCIENCES CORPORATION AND SUBSIDIARIES
	SCHEDULE II, VALUATION AND QUALIFYING ACCOUNTS
	(Amounts in millions)		Balance,		Charged to		Other(1)			Deductions			Balance,
			beginning		cost and								end of
			of period		expenses								period
	For the year ended April 3, 2015:
	Allowance for doubtful receivables		$	48	$	2	$	(4	)	$	(5	)	$	41
	For the year ended March 28, 2014:
	Allowance for doubtful receivables		48		4		(2		)	(2		)	48
	For the year ended March 29, 2013:
	Allowance for doubtful receivables		51		16		(1		)	(18		)	48
	(1)	Includes balances from acquisitions and changes in foreign currency exchange rates.

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Apr. 03, 2015
Summary of Significant Accounting Policies [Abstract]
Use of Estimates	Use of Estimates
	GAAP requires management to make estimates and assumptions that affect the amounts reported in the Consolidated Financial Statements and accompanying notes. These estimates are based on management’s best knowledge of historical experience, current events, and on various other assumptions that are believed to be reasonable under the circumstances. Actual results could differ from these estimates. Amounts subject to significant judgment and estimates include, but are not limited to, contracts accounted for using the percentage-of-completion method, cash flows used in the evaluation of impairment of goodwill and other long-lived assets, intangible assets, certain deferred costs, collectability of receivables, reserves for uncertain tax benefits, valuation allowances on deferred tax assets, loss accruals for litigation, pension related liabilities, inputs used for computing stock-based compensation and the fair value of derivative instruments.
Revenue Recognition	Revenue Recognition
	The Company's primary service offerings are information technology (IT) outsourcing, other professional services, or a combination thereof. Revenues are recognized when persuasive evidence of an arrangement exists, services or products have been provided to the client, the sales price is fixed or determinable, and collectability is reasonably assured. For non-software arrangements that include multiple-elements, revenue recognition involves the identification of separate units of accounting after consideration of combining and/or segmenting contracts and allocation of the arrangement consideration to the units of accounting on the basis of their relative selling price. Revenue under such contracts is recognized based upon the levels of services delivered in the periods in which they are provided. Upfront fees billed for the contract set-up include configuring hardware to new service levels, consolidating and migrating customer architecture from physical to virtual servers, and establishing disaster recoverability capability. These activities do not qualify as separate units of accounting, and the related revenues are deferred until service commencement and recognized ratably over the period of performance during the period in which CSC provides the related service, which is typically the life of the contract. Costs are expensed as incurred, except for direct and incremental set-up costs that are capitalized and amortized on a straight-line basis over the life of the contract (see Outsourcing Contract Costs below). See the section below regarding software transactions that include multiple elements.
	The Company provides these services under time and materials, cost-reimbursable, unit-price and fixed-price contracts, the revenue for which is recognized in the following manner:
	Time and materials contracts - Revenue is recorded at agreed-upon billing rates at the time services are provided.
	Cost-reimbursable contracts - Revenue is recorded at the time costs are incurred and associated fees are recognized when probable and estimable by applying an estimated factor to costs as incurred, such factor being determined by the contract provisions and prior experience.
	Unit-price contracts - Revenue is recognized on unit-price contracts based on unit metrics multiplied by the agreed upon contract unit price or when services are delivered.
	Fixed-price contracts - For certain fixed-price contracts, revenue is recognized under the percentage-of-completion method as described below; these include certain software development projects, all long-term construction-type contracts, and certain fixed-price arrangements with the U.S. federal government. For other fixed-price contracts, revenue is recognized based on the proportion of the services delivered to date as a percentage of the total services to deliver over the contract term. If output or input measures are not available or cannot be reasonably estimated, revenues are recognized ratably over the contract term.
	Under the percentage-of-completion method, progress towards completion is measured based on either achievement of specified contract milestones, costs incurred as a proportion of estimated total costs, or other measures of progress when available. Profit in a given period is reported at the estimated profit margin to be achieved on the overall contract. This method can result in the recognition of unbilled receivables, the deferral of costs as work in process, or deferral of profit on these contracts. Contracts that require estimates at completion using the percentage-of-completion method accounted for approximately 16.5% of the Company's revenues for fiscal 2015. Management regularly reviews project profitability and underlying estimates. Revisions to the estimates at completion are reflected in results of operations as a change in accounting estimate in the period in which the facts that give rise to the revision become known by management. Provisions for estimated losses at completion, if any, are recognized in the period in which the loss becomes evident. The provision includes estimated costs in excess of estimated revenue and any profit margin previously recognized.
	Multiple-element software sales - For multiple-element arrangements that involve the sale of CSC proprietary software, post contract customer support, and other software-related services, vendor-specific objective evidence (VSOE) of fair value is required to allocate and recognize revenue for each element. VSOE of fair value is determined based on the price charged where each deliverable is sold separately. In situations where VSOE of fair value exists for all undelivered elements but not a delivered element (typically the software license element), the residual method is used to allocate revenue to the undelivered elements equal to their VSOE value with the remainder allocated to the delivered element. If significant customization is required, and VSOE is available to support accounting for the software as a separate unit of account, software revenue is recognized as the related software customization services are performed in accordance with the percentage-of-completion method described above. In situations where VSOE of fair value does not exist for all of the undelivered software-related elements, revenue is deferred until only one undelivered element remains and then recognized following the pattern of delivery of the final undelivered element.
Depreciation and Amortization	Depreciation and Amortization
	The Company’s depreciation and amortization policies are as follows:
	Property and Equipment:
	Buildings	Up to 40 years
	Computers and related equipment	3 to 5 years
	Furniture and other equipment	2 to 15 years
	Leasehold improvements	Shorter of lease term or useful life
	Software	2 to 7 years
	Outsourcing contract costs	Contract life, excluding option years
	Customer related intangibles	Expected customer service life
	Acquired contract related intangibles	Contract life and first contract renewal, where applicable
	The cost of property and equipment, less applicable residual values, is depreciated using predominately the straight-line method. Depreciation commences when the specific asset is complete, installed and ready for normal use.
	Software and outsourcing contract costs are amortized using predominately the straight-line method. Acquired contract related and customer related intangible assets are amortized in proportion to the estimated undiscounted cash flows projected over the estimated life of the asset or on a straight-line basis if such cash flows cannot be reliably estimated.
Termination Benefits	Termination Benefits
	Termination benefits, offered to employees in connection with workforce reductions, are considered part of an ongoing benefit arrangement and are accounted for in accordance with ASC Topic 712, “Compensation — Non-retirement Post-employment Benefits.” Consequently, such benefits are recorded when payment of the benefits is probable and can be reasonably estimated.
Pension and Other Benefit Plans	Pension and Other Benefit Plans
	The Company and its subsidiaries offer a number of pension and postretirement benefits, life insurance benefits, deferred compensation, and other plans. Most of CSC's pension liabilities are frozen to new accruals. All plans are accounted for using the guidance of Accounting Standards Codification (ASC) 710 "Compensation - General" and ASC 715 “Compensation—Retirement Benefits” and are measured as of the end of the fiscal year.
	Effective the first quarter of fiscal 2015, the Company changed its accounting policy for measuring and recognition of actuarial gains and losses for its defined benefit pension and other post-retirement benefit plans and the calculation of the expected return on pension plan assets. Historically, the Company recognized actuarial gains and losses in excess of 10% of the greater of the market-related value of plan assets or the plans’ projected benefit obligations (the “corridor”) as a component of accumulated other comprehensive loss and, depending on the benefit plan, the Company amortized these gains and losses to earnings either over the remaining average service period for the active participants or over the average remaining life expectancy of the inactive participants. Additionally, for the Company’s U.S. plans and the Australian plan, the Company previously used a calculated value for the market-related valuation of pension plan assets, reflecting changes in the fair value of plan assets over a three-year and a one-year period, respectively. Under the Company’s new accounting policy, the Company recognizes changes in actuarial gains and losses and the changes in fair value of plan assets in earnings at the time of plan remeasurement, typically annually during the fourth quarter of each year as a component of net periodic benefit expense, and the Company no longer applies a corridor and, therefore, no longer defers any gains or losses.
	The new accounting policies result in the changes in actuarial gains and losses and the changes in fair value of plan assets being recognized in earnings in the year they occur, rather than amortized over time, and therefore recognized earlier than under the Company’s previous methods of accounting. The Company believes the new pension accounting policies are preferable as they recognize the effects of plan investment performance, interest rate changes, changes in actuarial assumptions as a component of earnings in the year in which they occur rather than amortized over time, and additionally, conform all plans to a consistent policy for determining market-related value of plan assets.
	The remaining components of pension/postretirement expense, primarily current period service and interest costs and expected return on plan assets, will continue to be recorded on a quarterly basis.
	Inherent in the application of the actuarial methods are key assumptions, including, but not limited to, discount rates, expected long-term rates of return on plan assets, mortality rates, rates of compensation increases, and medical cost trend rates. Company management evaluates these assumptions annually and updates assumptions as necessary. The fair value of assets are determined based on the prevailing market prices or estimated fair value of investments when quoted prices are not available.
Software Development Costs	Software Development Costs
	The Company capitalizes costs incurred to develop commercial software products to be sold, leased or otherwise marketed after establishing technological feasibility until such time the software products are available for general release to customers. Costs incurred to establish technological feasibility are charged to expense as incurred. Enhancements to software products are capitalized where such enhancements extend the life or significantly expand the marketability of the products. Amortization of capitalized software development costs is determined separately for each software product. Annual amortization expense is calculated based on the greater of the ratio of current gross revenues for each product to the total of current and anticipated future gross revenues for the product or the straight-line amortization method over the estimated economic life of the product.
	Unamortized capitalized software costs associated with commercial software products are regularly evaluated for impairment on a product-by-product basis by a comparison of the unamortized balance to the product’s net realizable value. The net realizable value is the estimated future gross revenues from that product reduced by the related estimated future costs. When the unamortized balance exceeds the net realizable value, the unamortized balance is written down to the net realizable value and an impairment charge is recorded.
	The Company capitalizes costs incurred to develop internal-use computer software during the application development stage. Costs related to preliminary project activities and post implementation activities are expensed as incurred. Internal and external costs incurred in connection with development of upgrades or enhancements that result in additional functionality are also capitalized. Capitalized costs associated with internal-use software are amortized on a straight-line basis over the estimated useful life of the software. Purchased software is capitalized and amortized over the estimated useful life of the software. Internal-use software assets are evaluated for impairment whenever events or changes in circumstances occur that could impact the recoverability of these assets.
Outsourcing Contract Costs	Outsourcing Contract Costs
	Costs on outsourcing contracts, including costs incurred for bid and proposal activities, are generally expensed as incurred. However, certain costs incurred upon initiation of an outsourcing contract are deferred and expensed over the contract life. These costs represent incremental external costs or certain specific internal costs that are directly related to the contract acquisition or transition activities and can be separated into two principal categories: contract premiums and transition/set-up costs. Examples of such capitalized costs include labor and related fringe benefits, subcontractor costs, travel costs, and premiums on property and equipment purchases.
	Contract premiums are amounts paid to customers in excess of the fair value of assets acquired. Fixed assets acquired in connection with outsourcing contracts are capitalized at fair value and depreciated consistent with the depreciation and amortization policy described above. Contract premiums paid are capitalized as outsourcing contract costs and amortized over the contract life. The amortization of contract premiums is accounted for as a reduction in revenue.
	Transition/set-up costs are primarily associated with assuming control over customer IT operations and transforming them in line with contract specifications and are amortized over the contract life.
	In the event indications exist that an outsourcing contract cost balance related to a particular contract may be impaired, the remaining estimated undiscounted cash flows of the contract are compared to the associated long-lived asset group including the unamortized outsourcing contract cost balance. If the remaining estimated undiscounted cash flows are not adequate to recover the unamortized cost balance of the asset group, a detailed evaluation is performed and, based on the fair value of the long-lived assets group, any unrecoverable balance is recognized as impairment in the period. Examples of such indicators include situations when a contract is materially underperforming, or is expected to materially underperform in the future, as compared to the original bid model or subsequent annual budgets.
	In the event of an early termination of an outsourcing contract, the Company and the customer, pursuant to certain contractual provisions, engage in discussions to determine the recovery of unamortized contract costs, lost profits, transfer of personnel, rights to implemented systems and processes, as well as other matters.
Stock-Based Compensation	Stock-Based Compensation
	The Company provides different forms of stock-based compensation to its employees and non-employee directors. This includes stock options and restricted stock units (RSUs), including performance-based restricted stock units (PSUs). The fair value of the awards is determined on the grant date, based on the Company's closing stock price. For awards settled in shares, the Company recognizes compensation expense based on the grant-date fair value net of estimated forfeitures over the vesting period. For awards settled in cash, the Company recognizes compensation expense based on the fair value at each reporting date net of estimated forfeitures.
	The Company uses the Black-Scholes-Merton model in determining the fair value of options granted. The expected term is calculated based on the Company’s historical experience with respect to its stock plan activity in combination with an estimate of when vested and unexercised option shares will be exercised. The expected term of options is based on the two separate job tier classifications, which have distinct historical exercise behavior. The risk-free interest rate is based on the zero-coupon interest rate of U.S. government issued Treasury strips with a period commensurate with the expected term of the options. Expected volatility is based on a blended approach, which uses a 2/3 weighting for historical volatility and 1/3 weighting for implied volatility. The Company’s historical volatility calculation is based on either the Company’s six-year or seven-year historical closing prices, based on employee class, in order to bring this factor more closely into alignment with the expected terms of the stock options. The dividend yield assumption was added concurrent with the introduction of a cash dividend in fiscal 2011 and is based on the respective fiscal year dividend payouts. The Company periodically evaluates its significant assumptions used in the fair value calculation.
Acquisition Accounting and Goodwill	Acquisition Accounting and Goodwill
	When the Company acquires a controlling financial interest through a business combination, CSC uses the acquisition method of accounting to allocate the purchase consideration to the assets acquired and liabilities assumed, which are generally recorded at fair value. Any excess of purchase consideration over the fair value of the acquired assets and assumed liabilities is recognized as goodwill.
	If the initial accounting for an acquisition is incomplete by the end of the reporting period in which it occurs, the Company reports provisional amounts for the items for which the accounting is incomplete. During the measurement period - no longer than one year from the date of the acquisition - the Company retroactively adjusts the provisional amounts recognized at the acquisition date if CSC obtains new information about facts and circumstances that existed as of the acquisition date that, if known, would have changed the measurement of the amounts originally recognized. Any measurement adjustments to the acquired assets or the assumed liabilities are recorded with a corresponding adjustment to goodwill.
	For contingent consideration recorded as a liability, the Company initially measures the amount at fair value as of the acquisition date and adjusts the liability, if needed, to fair value each reporting period. Changes in the fair value of contingent consideration, other than measurement period adjustments, are recognized as operating income or expense.
	Acquisition-related expenses are recognized separately from the business combination and are expensed as incurred. The results of operations of acquired businesses are included in the Consolidated Financial Statements from the acquisition date.
	The Company tests goodwill for impairment on an annual basis, as of the first day of the second fiscal quarter, and between annual tests if circumstances change, or if an event occurs that would more likely than not reduce the fair value of a reporting unit below its carrying amount. A significant amount of judgment is involved in determining whether an event indicating impairment has occurred between annual testing dates. Such indicators include, among other things: a significant decline in expected future cash flows; a significant adverse change in legal factors or in the business climate; unanticipated competition; the disposal of a significant component of a reporting unit; and the testing for recoverability of a significant asset group within a reporting unit.
	The goodwill impairment test initially involves the assessment of qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount. If the Company determines that it is not more likely than not, then the subsequent two-step process is not required. However, the Company has the option to bypass this initial qualitative assessment for its annual test and proceed directly to step one of the two-step process for one or more of its reporting units. If the Company determines that it is more likely than not that a reporting unit's carrying value exceeds it fair value, then it proceeds with the subsequent two-step goodwill impairment testing process. The first step is to compare each reporting unit’s fair value to its carrying value. If the reporting unit’s fair value exceeds its carrying value, no further procedures are required and no impairment is recorded. However, if a reporting unit’s fair value is less than its carrying value, an impairment of goodwill may exist, requiring the second step to measure the amount of any impairment loss. In the second step, the reporting unit’s fair value is allocated to all of the assets and liabilities of the reporting unit, including any unrecognized intangible assets, for the sole purpose of calculating the implied fair value of goodwill - as if applying the acquisition method of accounting described above to the reporting unit's assets and liabilities. If the implied fair value of goodwill is less than the recorded goodwill, an impairment charge is recorded in operations for the difference.
	When the Company performs step one of the two-step test for a reporting unit, it estimates the fair value of the reporting unit using both the income approach and the market approach. The income approach incorporates the use of a discounted cash flow method in which the estimated future cash flows and terminal values for each reporting unit are discounted to a present value using a discount rate. Cash flow projections are based on management's estimates of economic and market conditions, which drive key assumptions of revenue growth rates, operating margins, capital expenditures and working capital requirements. The discount rate is based on the specific risk characteristics of each reporting unit, the weighted-average cost of capital and its underlying forecasts. The market approach estimates fair value by applying performance-metric multiples to the reporting unit's prior and expected operating performance. The multiples are derived from comparable publicly traded companies that have operating and investment characteristics similar to those of the reporting unit. If the fair value of the reporting unit derived using one approach is significantly different from the fair value estimate using the other approach, the Company reevaluates its assumptions used in the two models. The fair values determined by the market approach and income approach, as described above, are weighted to determine the fair value for each reporting unit. The weighting ascribed to the market approach fair value, assigned to each reporting unit, is driven by two primary factors: 1) the number of comparable publicly traded companies used in the market approach, and 2) the similarity of the operating and investment characteristics of the reporting units to the comparable publicly traded companies used in the market approach.
	If CSC performs a step one analysis for all of its reporting units in conjunction with its annual goodwill testing, it also compares the sum of all of its reporting units’ fair values to the Company's market capitalization (per-share stock price multiplied by the number of shares outstanding) and calculates an implied control premium (the excess of the sum of the reporting units’ fair values over the market capitalization). The Company evaluates the reasonableness of the control premium by comparing it to control premiums derived from recent comparable business combinations. If the implied control premium is not reasonable in light of the actual acquisition transactions, the Company reevaluates its fair value estimates of the reporting units by adjusting the discount rates and/or other assumptions. As a result, when CSC’s stock price - and thus market capitalization - is low relative to the sum of the estimated fair value of its reporting units, this reevaluation can result in reductions to its estimated fair values for the reporting units.
Fair Value	Fair Value
	The Company uses the fair value measurement guidance to value certain of its assets and liabilities. Under this guidance, assets and liabilities are required to be valued based on assumptions used by a market participant, consistent with the following hierarchy of inputs:
	Level 1—	Quoted prices unadjusted for identical assets or liabilities in an active market.
	Level 2—	Inputs other than quoted prices that are observable, either directly or indirectly, for similar assets or liabilities.
	Level 3—	Unobservable inputs that reflect the entity’s own assumptions which market participants would use in pricing the asset or liability.
	The assets and liabilities which are valued using the fair value measurement guidance, on a recurring basis, include the Company’s money market funds and money market deposits, time deposits, short-term investments, pension assets, and derivative instruments including foreign currency forward and option contracts, interest rate swap contracts and total return swaps.
	The fair value of foreign currency forward contracts is based on quoted prices for similar but not identical derivative instruments; as such, the inputs are considered Level 2 inputs. Option contracts are valued using inputs which are based on quoted pricing intervals from external valuation models, which do not involve management judgment and as such these inputs are considered Level 2 inputs. The fair value of interest rate swaps is estimated based on valuation models that use interest rate yield curves as inputs, which also do not involve management judgment and as such these inputs are considered Level 2 inputs. Total return swaps are settled on the last day of every fiscal month. Certain pension assets are valued using model based pricing methods that use observable market data; as such these inputs are considered Level 2 inputs. There were no significant assets or liabilities measured at fair value on a recurring basis using significant unobservable (Level 3) inputs.
Receivables	Receivables
	Receivables consist of amounts billed and currently due from customers, amounts earned but unbilled (including contracts measured under the percentage-of-completion method of accounting), amounts retained by the customer until the completion of a specified contract, completion of U.S. federal government audit activities, negotiation of contract modification, and claims.
	Allowances for uncollectible billed trade receivables are estimated based on a combination of write-off history, aging analysis and any specific known collectability issues. Unbilled amounts under contracts in progress that are recoverable do not have an allowance for credit losses. Adjustments to unbilled amounts under contracts in progress related to credit quality, should they occur, would be recorded as a reduction of revenue.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets
	Long-lived assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or group of assets may not be recoverable. Recoverability of long-lived assets or groups of assets is assessed based on a comparison of the carrying amount to the estimated future net cash flows. If estimated future undiscounted net cash flows are less than the carrying amount, an expense is recorded in the amount, if any, required to reduce the carrying amount to fair value. Fair value is determined based on a discounted cash flow approach or, when available and appropriate, comparable market values. Long-lived assets to be disposed of are reported at the lower of their carrying amount or their fair value less costs to sell.
Income Taxes	Income Taxes
	Accounting for income taxes requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the financial statement carrying amounts and the tax bases of assets and liabilities. The Company maintains valuation allowances when, based on the weight of available evidence, it is more likely than not that all or a portion of a deferred tax asset will not be realized. Changes in valuation allowances from period to period are included in the Company’s tax provision in the period of change. In determining whether a valuation allowance is warranted, the Company takes into account such factors as prior earnings history, expected future earnings, carryback and carryforward periods, and tax strategies that could potentially enhance the likelihood of realization of a deferred tax asset.
	The Company recognizes uncertain tax positions in the financial statements when it is more likely than not that the tax position will be sustained upon examination. Uncertain tax positions are measured based on the probabilities that the uncertain tax position will be realized upon final settlement (see Note 13).
Cash and Cash Equivalents	Cash and Cash Equivalents
	The Company considers investments with an original maturity of three months or less to be cash equivalents. The Company’s cash equivalents consist of time deposits, money market funds and money market deposit accounts with a number of institutions that have high credit ratings.
Foreign Currency	Foreign Currency
	The Company has determined that, generally, the local currency of its foreign affiliates is their functional currency. Accordingly, the assets and liabilities of the foreign affiliates are translated from their respective functional currency to U.S. dollars using year-end exchange rates, income and expense accounts are translated at the average rates in effect during the year, and equity accounts are translated at historical rates. The resulting translation adjustment is reported in the Consolidated Statements of Comprehensive Income and recorded as part of accumulated other comprehensive income (AOCI).
Derivative Instruments	Derivative Instruments
	The Company is exposed to certain market risks, including the effect of changes in interest rates and foreign currency exchange rates, and the value of notional investments underlying the Company's non-qualified deferred compensation plan. Changes in benchmark interest rates can impact the fair value of the Company's term notes, whereas changes in foreign currency exchange rates can impact the Company's foreign currency denominated monetary assets and liabilities and forecasted transactions in foreign currency. Market volatility of the notional investments underlying the Company's non-qualified deferred compensation plan can impact the Company's obligations under the plan. The Company uses derivative instruments to mitigate the impact of these market risks, not for trading or any speculative purpose.
	The Company designates certain derivative instruments as hedges for purposes of hedge accounting, as defined under ASC 815, “Derivatives and Hedging.” For such derivative instruments, the Company documents its risk management objectives and strategy for undertaking hedging transactions, as well as all relationships between hedging and hedged risks. The Company's derivative instruments designated for hedge accounting consist mainly of interest rate swaps and foreign currency forward contracts. Changes in the fair value measurements of the cash flow hedge derivative instruments are reflected as adjustments to other comprehensive income and subsequently reclassified into earnings in the period during which the hedged transactions are recognized in earnings. Changes in fair value measurements of interest rate swaps are recorded in current period earnings and fully offset the changes in the fair value of the hedged debt where such instruments have qualified for the short-cut method of hedge accounting under ASC 815
	The derivative instruments not designated as hedges for purposes of hedge accounting include total return swaps and certain short-term foreign currency forward and option contracts. These instruments are recorded at their respective fair values and the change in their value is reported in current period earnings.
	All cash flows associated with the Company's derivative instruments are classified as operating activities in the Consolidated Statements of Cash Flows.
Earnings (Loss) Per Share	Earnings (Loss) Per Share
	Basic earnings (loss) per common share (EPS) are computed using the weighted average number of common shares outstanding during the period. Diluted EPS reflect the incremental shares issuable upon the assumed exercise of stock options and equity awards.
New Accounting Pronouncements and Standards Not Yet Adopted	New Accounting Standards
	During fiscal year 2015, the Company adopted the following Accounting Standard Update (ASU):
	In April 2015, the Financial Accounting Standards Board (FASB) issued ASU No. 2015-04, "Compensation - Retirement Benefits (Topic 715): Practical Expedient for the Measurement Date of an Employer's Defined Benefit Plan Obligation and Plan Assets." The objective of ASU 2015-04 is to provide a practical expedient that permits an entity with a fiscal year end that does not coincide with a month end to measure defined benefit plan assets and obligations using the month end that is closest to the fiscal year end. Effective April 3, 2015, CSC early adopted the ASU for each of its defined benefit plans, and determined that it did not have a material effect on its Consolidated Financial Statements.
	In February 2013, the FASB issued ASU No. 2013-04, "Obligations Resulting from Joint and Several Liability Arrangements for which the Total Amount of the Obligation Is Fixed at the Reporting Date” (ASU 2013-04). ASU 2013-04 requires an entity to measure obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this guidance is fixed at the reporting date, as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors and any additional amount the reporting entity expects to pay on behalf of its co-obligors. The guidance in ASU 2013-04 also requires an entity to disclose the nature and amount of the obligation as well as other information about those obligations. The amendments in ASU 2013-04 are effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. Effective March 29, 2014, CSC adopted the amendments in ASU 2013-04 and determined that they did not have a material effect on CSC’s Consolidated Financial Statements.
	Standards Issued But Not Yet Effective
	The following ASUs were recently issued but have not yet been adopted by CSC:
	In April 2015, the FASB issued ASU No. 2015-05, "Intangibles - Goodwill and Other - Internal-Use Software (Subtopic 350-40): Customer's Accounting for Fees Paid in a Cloud Computing Arrangement". The amendment adds guidance to existing GAAP by providing guidance to customers about whether a cloud computing arrangement includes a software license. If a cloud computing arrangement does not contain a software license, the customer should account for the arrangement as a service contract. The amendment does not change the accounting for a customer's accounting for service contracts. As a result of the amendment, all software licenses within the scope of Subtopic 350-40 will be accounted for consistent with other licenses of intangible assets. ASU 2015-05 will be effective for CSC in fiscal 2017 and early adoption is permitted. The amendment can either be adopted (1) prospectively to all arrangements entered into or materially modified after the effective date; or (2) retrospectively. For prospective transition, the only disclosure requirements at transition are the nature of and reason for the change in accounting principle, the transition method, and a qualitative description of the financial statement line items affected by the change. For retrospective transition, the disclosure requirements at transition include the requirements for prospective transition and quantitative information about the effects of the accounting change. CSC is currently evaluating the impact that the adoption of ASU 2015-05 may have on CSC's Consolidated Financial Statements.
	In April 2015, the FASB issued ASU 2015-03, "Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs", which changes the presentation of debt issuance costs in financial statements. Under the ASU, such costs are presented in the balance sheet as a direct deduction from the related debt liability rather than as an asset. Amortization of the costs is reported as interest expense. Early adoption is allowed for all entities for financial statements that have not been previously issued. The guidance is to be applied retrospectively to all prior periods (i.e., the balance sheet for each period is adjusted). ASU 2015-03 will be effective for CSC beginning in fiscal 2017. CSC is currently evaluating the impact that the adoption of ASU 2015-03 may have on CSC's Consolidated Financial Statements.
	In February 2015, the FASB issued ASU No. 2015-02, “Consolidation (Topic 810): Amendments to the Consolidation Analysis” (ASU 2015-02). The objective of ASU 2015-02 is to modify the consolidation requirements of Topic 810 to ensure that reporting entities do not consolidate other legal entities in situations where deconsolidation actually more accurately represents operational and economic results. Among other changes, the amendments to ASC 810 include lessening the relevance on fees paid to a decision-maker or service provider and the related party tiebreaker test.
	The amendments are effective for public business entities for fiscal years, and for interim periods within those fiscal years beginning after December 15, 2015. This ASU may be adopted using a full retrospective approach or a modified retrospective approach by recording a cumulative effect adjustment to equity as of the beginning of the fiscal year of adoption. ASU 2015-02 will be effective for CSC beginning in fiscal 2017. CSC is currently evaluating the impact that the adoption of ASU 2015-02 may have on CSC’s Consolidated Financial Statements.
	In August 2014, the FASB issued ASU No. 2014-15, “Presentation of Financial Statements - Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern” (ASU 2014-15). ASU 2014-15 is intended to define management’s responsibility to evaluate whether there is substantial doubt about an organization’s ability to continue as a going concern and to provide related footnote disclosures. This ASU provides guidance to an organization’s management, with principles and definitions that are intended to reduce diversity in the timing and content of disclosures that are commonly provided by organizations today in the financial statement footnotes. The amendments are effective for annual periods ending after December 15, 2016, and interim periods within annual periods beginning after December 15, 2016. Early adoption is permitted for annual or interim reporting periods for which the financial statements have not previously been issued. ASU 2014-15 will be effective for CSC for fiscal 2017. CSC believes that the adoption of ASU 2014-15 will not have a material effect on CSC's Consolidated Financial Statements.
	In May 2014, the FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)” (ASU 2014-09). ASU 2014-09 supersedes the revenue recognition requirements in ASC Topic 605, “Revenue Recognition” and some cost guidance included in ASC Subtopic 605-35, Revenue Recognition - Construction-Type and Production-Type Contracts”. The core principle of ASU 2014-09 is that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which CSC expects to be entitled in exchange for those goods or services. ASU 2014-09 requires the disclosure of sufficient information to enable users of CSC’s financial statements to understand the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts. CSC will also be required to disclose information regarding significant judgments and changes in judgments, and assets recognized from costs incurred to obtain or fulfill a contract. ASU 2014-09 provides two methods of retrospective application. The first method would require CSC to apply ASU 2014-09 to each prior reporting period presented. The second method would require CSC to retrospectively apply with the cumulative effect of initially applying ASU 2014-09 recognized at the date of initial application. ASU 2014-09 will be effective for CSC beginning in fiscal 2018; however, a delay in the effective date is currently being considered by the FASB, which we expect will result in at least a one year deferral. The FASB may also permit companies to adopt ASU 2014-09 early, but not before the original public company effective date (that is, annual periods beginning after December 15, 2016). CSC is currently evaluating the impact that the adoption of ASU 2014-09 may have on CSC’s Consolidated Financial Statements.
	In April 2014, the FASB issued ASU No. 2014-08, “Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity” (“ASU 2014-08”), which changes the requirements for reporting discontinued operations in Subtopic 205-20 “Presentation of Financial Statements - Discontinued Operations.” The ASU changes the definition of discontinued operations by limiting discontinued operations reporting to disposals that represent strategic shifts that have (or will have) a major effect on an entity’s operations and financial results. Under current U.S. GAAP, many disposals, some of which may be routine in nature and not representative of a substantive change in an entity’s strategy, are reported in discontinued operations. ASU 2014-08 requires expanded disclosures for discontinued operations designed to provide users of financial statements with more information about the assets, liabilities, revenues, expenses and cash flows related to discontinued operations. ASU 2014-08 also requires an entity to disclose the pretax profit or loss (or change in net assets for a not-for-profit entity) of an individually significant component of an entity that does not qualify for discontinued operations reporting. The amendments in ASU 2014-08 are effective prospectively for fiscal years, and interim periods, beginning after December 15, 2014. ASU 2014-08 will be effective for CSC beginning in Q1 FY 2016 and CSC will evaluate each divestiture to determine the appropriate presentation and disclosure requirements associated with CSC's Consolidated Financial Statements.
	In January 2014, the FASB issued ASU No. 2014-05, "Service Concession Arrangements (Topic 853) (a consensus of the FASB Emerging Issues Task Force)” (“ASU 2014-05”). ASU 2014-05 provides guidance on the accounting for service concession arrangements, which are arrangements between a public-sector entity grantor and an operating entity under which the operating entity operates the grantor’s infrastructure (e.g. airports, roads, or bridges). The operating entity also may provide the construction, upgrading, or maintenance services of the grantor’s infrastructure. ASU 2014-05 specifies that an operating entity should not account for a service concession arrangement that is within the scope of this ASU as a lease in accordance with Topic 840, "Leases." ASU 2014-05 also specifies that the infrastructure used in a service concession arrangement should not be recognized as property, plant, and equipment of the operating entity. For CSC, ASU 2014-05 will be effective beginning in fiscal 2016. CSC has determined this ASU will not have a material impact on CSC's Consolidated Financial Statements.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Apr. 03, 2015
Summary of Significant Accounting Policies [Abstract]
Schedule of Change in Accounting Estimate	The Company's income (loss) from continuing operations, before taxes and noncontrolling interests, and diluted earnings per share (EPS) from continuing operations included the following adjustments due to changes in estimated profitability on fixed price contracts accounted for under the percentage-of-completion method for the fiscal years presented:
			Twelve Months Ended
	(Amounts in millions), except per share data		April 3, 2015			March 28, 2014			March 29, 2013
	Gross favorable		$	112		$	125		$	142
	Gross unfavorable		(40		)	(50		)	(122		)
	Total net adjustments, before taxes and noncontrolling interests (1)		$	72		$	75		$	20
	Impact on diluted EPS from continuing operations		$	0.29		$	0.31		$	(0.10	)
	(1)	Quarterly changes in estimated profitability on the same fixed price contract are disclosed gross as either favorable or unfavorable.
Depreciation And Amortization Schedule Of Estimated Useful Lives By Asset	The Company’s depreciation and amortization policies are as follows:
	Property and Equipment:
	Buildings	Up to 40 years
	Computers and related equipment	3 to 5 years
	Furniture and other equipment	2 to 15 years
	Leasehold improvements	Shorter of lease term or useful life
	Software	2 to 7 years
	Outsourcing contract costs	Contract life, excluding option years
	Customer related intangibles	Expected customer service life
	Acquired contract related intangibles	Contract life and first contract renewal, where applicable
	The amortizable lives associated with the intangible assets acquired are as follows:
	Description	Estimated Useful Lives (Years)
	Developed technology	9
	Customer relationships	3
	Trade names	6-Apr

Defined_Benefit_Pension_Plan_A1

Defined Benefit Pension Plan Accounting Policy Changes (Tables)	12 Months Ended
	Apr. 03, 2015
Accounting Changes and Error Corrections [Abstract]
Schedule of Changes in Accounting Principles	The following tables present the effects of applying the change in the pension accounting policies, on select line items of the accompanying fiscal 2015 Consolidated Financial Statements:
	Impact on Consolidated Statements of Operations
		Twelve months ended April 3, 2015
		Previous accounting methods			As Reported			Impact of change in accounting method
	(Amounts in millions, except per-share amounts)							Increase/(Decrease)
	Costs of services	$	9,084		$	9,534		$	450
	Selling, general and administrative expenses	1,271			1,340			69
	Income (loss) from continuing operations, before taxes	243			(276		)	(519		)
	Income tax benefit	(164		)	(312		)	(148		)
	Income from continuing operations	407			36			(371		)
	Net income	378			7			(371		)
	Net income attributable to noncontrolling interest, net of tax	13			15			2
	Net income (loss) attributable to CSC common stockholders	365			(8		)	(373		)
	Basic EPS - Continuing operations	$	2.76		$	0.15		$	(2.61	)
	Diluted EPS - Continuing operations	$	2.7		$	0.15		$	(2.55	)
	Impact on Consolidated Statements of Comprehensive (Loss) Income
		Twelve months ended April 3, 2015
		Previous accounting methods			As Reported			Impact of change in accounting method
	(Amounts in millions)							Increase/(Decrease)
	Net income (loss)	$	378		$	7		$	(371	)
	Foreign currency translation adjustments	(207		)	(310		)	(103		)
	Net actuarial gain	(639		)	—			639
	Amortization of prior service (cost)	(18		)	(16		)	2
	Amortization of net actuarial gain	159			—			(159		)
	Foreign currency exchange gain (loss)	8			—			(8		)
	Pension and other post-retirement benefit plans, net of taxes	(432		)	42			474
	Other comprehensive loss, net of taxes	(641		)	(270		)	371
	Comprehensive income attributable to noncontrolling interest	13			15			2
	Comprehensive income (loss) attributable to CSC common stockholders	(276		)	(278		)	(2		)
	Impact on Consolidated Balance Sheets
		As of April 3, 2015
		Previous accounting methods			As Reported			Impact of change in accounting method
	(Amounts in millions)							Increase/(Decrease)
	Earnings retained for use in business	$	2,475		$	912		$	(1,563	)
	Accumulated other comprehensive (loss) income	(1,539		)	21			1,560
	Noncontrolling interest in subsidiaries	25			28			3
	Impact on Consolidated Statements of Cash Flows
		Twelve months ended April 3, 2015
		Previous accounting methods			As Reported			Impact of change in accounting method
	(Amounts in millions)							Increase/(Decrease)
	Net income (loss)	$	378		$	7		$	(371	)
	Pension & OPEB actuarial & settlement losses (gains)	—			782			782
	Deferred taxes	(301		)	(449		)	(148		)
	Increase (decrease) in accounts payable and accrued expenses	(86		)	(335		)	(249		)
	Increase (decrease) in income taxes payable and income tax liability	(112		)	(23		)	89
	Other operating activities, net	119			16			(103		)

Acquisitions_Tables

Acquisitions (Tables)	12 Months Ended
	Apr. 03, 2015
Acquisitions and Divestitures [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	The allocation of the purchase consideration to the assets acquired and liabilities assumed, including the fourth quarter of fiscal 2014 adjustments to the estimated fair value of contingent consideration, is presented below:
	(Amounts in millions)		Estimated Fair Value
	Accounts receivable and other current assets		$	3
	Deferred tax assets		31
	Intangible asset - developed technology		94
	Intangible assets - customer relationships and trade names		10
	Property and equipment and other non-current assets		2
	Deferred revenue and other current liabilities		(4		)
	Deferred tax liabilities		(38		)
	Total identifiable net assets acquired		98
	Goodwill		184
	Total purchase consideration		$	282
Depreciation And Amortization Schedule Of Estimated Useful Lives By Asset	The Company’s depreciation and amortization policies are as follows:
	Property and Equipment:
	Buildings	Up to 40 years
	Computers and related equipment	3 to 5 years
	Furniture and other equipment	2 to 15 years
	Leasehold improvements	Shorter of lease term or useful life
	Software	2 to 7 years
	Outsourcing contract costs	Contract life, excluding option years
	Customer related intangibles	Expected customer service life
	Acquired contract related intangibles	Contract life and first contract renewal, where applicable
	The amortizable lives associated with the intangible assets acquired are as follows:
	Description	Estimated Useful Lives (Years)
	Developed technology	9
	Customer relationships	3
	Trade names	6-Apr

Divestitures_Tables

Divestitures (Tables)	12 Months Ended
	Apr. 03, 2015
Discontinued operations [Abstract]
Summary of Discontinued Operations	Following is the summary of the results of the discontinued operations:
		Twelve Months Ended
	(Amounts in millions)	April 3, 2015			March 28, 2014		March 29, 2013
	Operations
	Revenue	$	10		$	235	$	1,193
	(Loss) income from discontinued operations, before taxes	(11		)	9		116
	Income tax expense	—			7		51
	Net (loss) income from discontinued operations	(11		)	2		65
	Disposal
	(Loss) gain on disposition	$	(21	)	$	101	$	769
	Income tax (benefit) expense	(3		)	15		352
	(Loss) gain on disposition, net of taxes	(18		)	86		417
	(Loss) income from discontinued operations, net of taxes	$	(29	)	$	88	$	482

Earnings_Loss_Per_Share_Tables

Earnings (Loss) Per Share (Tables)	12 Months Ended
	Apr. 03, 2015
Earnings Per Share [Abstract]
Schedule of earnings per share	Basic earnings (loss) per common share (EPS) and diluted EPS are calculated as follows:
		Twelve Months Ended
	(Amounts in millions, except per-share data)	April 3, 2015			March 28, 2014		March 29, 2013
	Net (loss) income attributable to CSC common shareholders:
	From continuing operations	$	21		$	859	$	278
	From discontinued operations	(29		)	88		482
		$	(8	)	$	947	$	760
	Common share information:
	Weighted average common shares outstanding for basic EPS	142.557			147.647		154.59
	Dilutive effect of stock options and equity awards	3.223			3.114		0.967
	Shares for diluted earnings (loss) per share	145.78			150.761		155.557
	Earnings (loss) per share – basic and diluted:
	Basic EPS:
	Continuing operations	$	0.15		$	5.81	$	1.8
	Discontinued operations	(0.21		)	0.6		3.12
	Total	$	(0.06	)	$	6.41	$	4.92
	Diluted EPS:
	Continuing operations	$	0.15		$	5.7	$	1.79
	Discontinued operations	(0.20		)	0.58		3.1
	Total	$	(0.05	)	$	6.28	$	4.89

Receivables_Tables

Receivables (Tables)	12 Months Ended
	Apr. 03, 2015
Receivables [Abstract]
Schedule of receivables	Receivables consist of the following:
	(Amounts in millions)	April 3, 2015		March 28, 2014
	Billed trade accounts	$	1,224	$	1,564
	Unbilled recoverable amounts under contracts in progress	963		1,036
	Other receivables	182		159
	Total	$	2,369	$	2,759

Fair_Value_Tables

Fair Value (Tables)	12 Months Ended
	Apr. 03, 2015
Fair Value [Abstract]
Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table presents the Company’s assets and liabilities, excluding pension assets (see Note 15), that are measured at fair value on a recurring basis as of April 3, 2015 and March 28, 2014:
		April 3, 2015
				Fair Value Hierarchy
	(Amounts in millions)	Fair Value		Level 1		Level 2		Level 3
	Assets:
	Money market funds and money market deposit accounts	$	344	$	344	$	—	$	—
	Time deposits	411		411		—		—
	Derivative instruments	20		—		20		—
	Total assets	$	775	$	755	$	20	$	—
	Liabilities:
	Derivative instruments	$	5	$	—	$	5	$	—
	Total liabilities	$	5	$	—	$	5	$	—
		March 28, 2014
				Fair Value Hierarchy
	(Amounts in millions)	Fair Value		Level 1		Level 2		Level 3
	Assets:
	Money market funds and money market deposit accounts	$	717	$	717	$	—	$	—
	Time deposits	693		693		—		—
	Derivative instruments	5		—		5		—
	Total assets	$	1,415	$	1,410	$	5	$	—
	Liabilities:
	Derivative instruments	$	4	$	—	$	4	$	—
	Total liabilities	$	4	$	—	$	4	$	—

Derivative_Instruments_Tables

Derivative Instruments (Tables)	12 Months Ended
	Apr. 03, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The following table presents the fair values of derivative instruments included on the Consolidated Balance Sheets as of April 3, 2015 and March 28, 2014:
		Derivative Assets										Derivative Liabilities
	(Amounts in millions)	Balance Sheet line item		As of April 3, 2015				As of March 28, 2014				Balance Sheet line item	As of April 3, 2015			As of March 28, 2014
	Derivatives designated for hedge accounting:
	Interest rate	Other assets		$	18			$	3			Other long-term liabilities	$	—		$	—
	Foreign Currency forward contracts	Prepaid expense and other current assets		$	1			$	—			Accrued expenses and other current liabilities	3			—
	Total fair value of derivatives designated for hedge accounting			$	19			$	3				$	3		$	—
	Derivatives not designated for hedge accounting:
	Foreign Currency forward contracts	Prepaid expense and other current assets		$	1			$	2			Accrued expenses and other current liabilities	$	2		$	4
	Total fair value of derivatives not designated for hedge accounting			$	1			$	2				$	2		$	4
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	The following table presents the pre-tax gains (losses) related to the fair value hedges and the related hedged items, for the twelve months ended April 3, 2015 and March 28, 2014, respectively:
		Derivative Instrument									Hedged Item
	(Amounts in millions)	Statement of Operations line item	Gain (Loss) for the Twelve Months Ended								Balance Sheet line item		Gain (Loss) for the Twelve Months Ended
			3-Apr-15				28-Mar-14						3-Apr-15			28-Mar-14
	Interest rate swaps	Other Income (Expense)	$	15			$	3			Debt		$	(15	)	$	(3	)
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	The following table presents the pre-tax gains (losses) associated with the cash flow hedges, recognized in accumulated OCI, for the twelve months ended April 3, 2015:
	(Amounts in millions)	Gain (Loss) recognized in Accumulated OCI (effective portion) for the Twelve Months Ended				Gain (Loss) reclassified into cost of services from Accumulated OCI (effective portion) for the Twelve Months Ended					Gain (Loss) recognized in Other Income (Expense) (ineffective portion) for the Twelve Months Ended
		3-Apr-15
	Foreign currency forward and option contracts	$	(2	)		$	—				$	—
Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location	The following table presents the pretax amounts affecting income related to derivatives not designated for hedge accounting for the years ended April 3, 2015, March 28, 2014, and March 29, 2013 respectively:
				Twelve Months Ended
	(Amounts in millions)	Statement of Operations line item		3-Apr-15				28-Mar-14				29-Mar-13
	Total return swaps	Cost of services and Selling, general & administrative expenses		$	8			$	—			$	—
	Foreign currency forwards and options	Other Income (Expense)		(11		)		(15		)		(17		)
	Total			$	(3	)		$	(15	)		$	(17	)

Property_and_Equipment_Tables

Property and Equipment (Tables)	12 Months Ended
	Apr. 03, 2015
Property, Plant and Equipment [Abstract]
Property and Equipment	Property and equipment consisted of the following:
	(Amounts in millions)	April 3, 2015		March 28, 2014
	Property and equipment — gross:
	Land, buildings and leasehold improvements	$	1,107	$	1,226
	Computers and related equipment	3,609		4,051
	Furniture and other equipment	305		346
	Construction in progress	23		28
		5,044		5,651
	Less: accumulated depreciation and amortization	3,461		3,620
	Property and equipment, net	$	1,583	$	2,031

Intangible_Assets_Tables

Intangible Assets (Tables)	12 Months Ended
	Apr. 03, 2015
Intangible Assets [Abstract]
Summary of Amortizable Intangible Assets	A summary of amortizable intangible assets is as follows:
		As of
		April 3, 2015
	(Amounts in millions)	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
	Outsourcing contract costs	$	802	$	476	$	326
	Software	2,393		1,642		751
	Customer and other intangible assets	476		327		149
	Total intangible assets	$	3,671	$	2,445	$	1,226
		As of
		March 28, 2014
	(Amounts in millions)	Gross Carrying Value		Accumulated Amortization		Net Carrying Value
	Outsourcing contract costs	$	1,465	$	1,038	$	427
	Software	2,330		1,680		650
	Customer and other intangible assets	588		315		273
	Total intangible assets	$	4,383	$	3,033	$	1,350
Schedule Purchased and Internally Developed Software, Net of Accumulated Amortization	Purchased and internally developed software, net of accumulated amortization, consisted of the following:
	(Amounts in millions)	April 3, 2015		March 28, 2014
	Purchased software	$	256	$	287
	Internally developed commercial software	364		308
	Internally developed internal-use software	131		55
	Total	$	751	$	650

Goodwill_Tables

Goodwill (Tables)	12 Months Ended
	Apr. 03, 2015
Goodwill [Abstract]
Changes in the Carrying Amount of Goodwill by Segment	The following tables summarize the changes in the carrying amount of goodwill, by segment, for the years ended April 3, 2015 and March 28, 2014, respectively.
	(Amounts in millions)	GBS			GIS			NPS			Total
	Goodwill, gross	$	1,381		$	2,260		$	788		$	4,429
	Accumulated impairment losses	(701		)	(2,061		)	—			(2,762		)
	Balance as of March 28, 2014, net	680			199			788			1,667
	Additions	—			—			45			45
	Foreign currency translation	(41		)	—			—			(41		)
	Goodwill, gross	1,340			2,260			833			4,433
	Accumulated impairment losses	(701		)	(2,061		)	—			(2,762		)
	Balance as of April 3, 2015, net	$	639		$	199		$	833		$	1,671
	(Amounts in millions)	GBS			GIS			NPS			Total
	Goodwill, gross	$	1,346		$	2,139		$	793		$	4,278
	Accumulated impairment losses	(701		)	(2,061		)	—			(2,762		)
	Balance as of March 29, 2013, net	645			78			793			1,516
	Additions	55			120			36			211
	Deductions	(12		)	—			(41		)	(53		)
	Foreign currency translation	(8		)	1			—			(7		)
	Goodwill, gross	1,381			2,260			788			4,429
	Accumulated impairment losses	(701		)	(2,061		)	—			(2,762		)
	Balance as of March 28, 2014, net	$	680		$	199		$	788		$	1,667

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Apr. 03, 2015
Income Taxes [Abstract]
Sources of income before income taxes classified between domestic and foreign entities	The sources of (loss) income from continuing operations, before income taxes, classified between domestic entities and those entities domiciled outside of the United States, are as follows:
		Twelve Months Ended
	(Amounts in millions)	April 3, 2015				March 28, 2014				March 29, 2013
	Domestic entities	$	(369	)		$	574			$	(113	)
	Entities outside the United States	93				689				348
	Total	$	(276	)		$	1,263			$	235
Components of the income tax provision	The income tax (benefit) expense on income (loss) from continuing operations is comprised of:
		Twelve Months Ended
	(Amounts in millions)	April 3, 2015				March 28, 2014				March 29, 2013
	Current:
	Federal	$	49			$	81			$	(330	)
	State	(10		)		7				(5		)
	Foreign	98				126				174
		137				214				(161		)
	Deferred:
	Federal	(126		)		119				76
	State	(21		)		25				(18		)
	Foreign	(302		)		25				41
		(449		)		169				99
	Total income tax expense (benefit)	$	(312	)		$	383			$	(62	)
Federal statutory tax rate to effective tax rate reconciliation	The major elements contributing to the difference between the U.S. federal statutory tax rate of 35% and the effective tax rate (ETR) for continuing operations are as follows:
		Twelve Months Ended
		April 3, 2015			March 28, 2014			March 29, 2013
	Statutory rate	(35.0	)%		35	%		35	%
	State income tax, net of federal tax	(4.0	)		1.8			(2.6	)
	Change in uncertain tax positions	0.6			2.9			2.4
	Foreign tax rate differential	(127.2	)		2.8			(126.7	)
	Income tax credits	(2.0	)		(0.3	)		(0.1	)
	Valuation allowance	32.6			(11.8	)		175.2
	Change in entity tax status	—			—			(0.7	)
	Loss on sale of securities	—			0.8			(105.4	)
	SEC settlements	26.4			—			—
	Other items, net	(4.4	)		(0.9	)		(3.5	)
	Effective tax rate	(113.0	)%		30.3	%		(26.4	)%
Components of deferred tax assets and liabilities	The deferred tax assets (liabilities) are as follows:
	(Amounts in millions)	April 3, 2015				March 28, 2014
	Deferred Tax Assets
	Employee benefits	$	431			$	333
	Tax loss/credit carryforwards	1,083				919
	Accrued interest	24				20
	State taxes	7				10
	Cumulative foreign exchange gain/loss	6				2
	Contract accounting	38				38
	Other assets	80				66
	Total Deferred Tax Assets	1,669				1,388
	Valuation allowance	(958		)		(1,006		)
	Net Deferred Tax Assets	711				382
	Deferred Tax Liabilities
	Depreciation and amortization	(287		)		(341		)
	Investment basis differences	(110		)		(126		)
	Other liabilities	(97		)		(112		)
	Total Deferred Tax Liabilities	(494		)		(579		)
	Total Deferred Tax Assets	$	217			$	(197	)
Schedule of deferred tax assets and liabilities	Income tax related assets are included in the accompanying balance sheet as follows:
	(Amounts in millions)	April 3, 2015				March 28, 2014
	Current:
	Prepaid Expenses and Other Current Assets	$	52			$	11
	Income Tax Receivables	107				92
		$	159			$	103
	Non-current:
	Income Taxes Receivable and Prepaid Taxes	$	109			$	123
	Other Deferred tax Assets	375				123
		$	484			$	246
	Total	$	643			$	349
	Income tax related liabilities are included in the accompanying balance sheet as follows:
	(Amounts in millions)	April 3, 2015				March 28, 2014
	Current:
	Deferred Income Taxes	(39		)		(25		)
	Income Taxes Payable	(23		)		(52		)
		(62		)		(77		)
	Non-current:
	Deferred Taxes	(171		)		(307		)
	Non-current Tax Liability for Uncertain Tax Positions	(241		)		(250		)
		(412		)		(557		)
	Total	$	(474	)		$	(634	)
Balance of uncertain tax positions (excluding interest and penalties and related tax carryforwards)	The following table summarizes the activity related to the Company’s uncertain tax positions (excluding interest and penalties and related tax attributes):
		Twelve Months Ended
	(Amounts in millions)	April 3, 2015				March 28, 2014				March 29, 2013
	Balance at Beginning of Fiscal Year	$	299			$	294			$	340
	Gross increases related to prior year tax positions	45				31				7
	Gross decreases related to prior year tax positions	(11		)		(27		)		(40		)
	Gross increases related to current year tax positions	12				10				8
	Settlements and statute of limitation expirations	(25		)		(1		)		(18		)
	Foreign exchange and others	(11		)		(8		)		(3		)
	Balance at End of Fiscal Year	$	309			$	299			$	294
Tax Examination Status	The Company is currently under examination in several tax jurisdictions. A summary of the tax years that remain subject to examination in certain of the Company’s major tax jurisdictions are:
	Jurisdiction:	Tax Years that Remain Subject to Examination
		(Fiscal Year Ending):
	United States – Federal	2008 and forward
	United States – Various States	2005 and forward
	Australia	2011 and forward
	Canada	2008 and forward
	Denmark	2010 and forward
	France	2012 and forward
	Germany	2006 and forward
	India	2009 and forward
	United Kingdom	2010 and forward

Debt_Tables

Debt (Tables)	12 Months Ended
	Apr. 03, 2015
Debt Instruments [Abstract]
Schedule of long term debt instruments	The following is a summary of the Company's debt as of April 3, 2015 and March 28, 2014:
	(Amounts in millions)		April 3, 2015		March 28, 2014
	4.45% term notes, due September 2022		$	451	$	434
	6.50% term notes, due March 2018		917		917
	2.50% term notes, due September 2015		350		350
	Note payable, due January 2016		371		413
	Mandatorily redeemable preferred stock outstanding		61		61
	Note payable of consolidated subsidiary		68		68
	Capitalized lease liabilities		353		511
	Borrowings for assets acquired under long-term financing		95		98
	Other borrowings		3		36
	Total debt		2,669		2,888
	Less: short term debt and current maturities of long term debt		904		681
	Total long-term debt		$	1,765	$	2,207
Schedule of future minimum lease payments required under the capital leases	Expected maturities of long-term debt, including borrowings for asset financing but excluding future minimum capital lease payments, for years subsequent to April 3, 2015, are as follows:
	Fiscal Year	Amount (in millions)
	2016	$	766
	2017	45
	2018	993
	2019	—
	2020	—
	Thereafter	512
	Total	$	2,316
Schedule of long term debt expected maturities	The future minimum lease payments required to be made under the capital leases as of April 3, 2015, are as follows:
	Fiscal Year	Amount (in millions)
	2016	$	174
	2017	110
	2018	59
	2019	41
	2020	35
	Thereafter	103
	Total minimum lease payments	522
	Less: Amount representing interest and executory costs	(169		)
	Present value of net minimum lease payments	353
	Less: Current maturities of capital lease obligations	(138		)
	Long-term capitalized lease liabilities	$	215

Pension_and_Other_Benefit_Plan1

Pension and Other Benefit Plans (Tables)	12 Months Ended
	Apr. 03, 2015
Pension And Other Benefit Plans [Abstract]
Schedule of defined benefit plans disclosures	The following tables provide reconciliations of the changes in the pension plans’ projected benefit obligations and assets, and a statement of their funded status:
	Reconciliation of Projected Benefit Obligation		U.S. Pension Plans								Non-U.S. Pension Plans
	(Amounts in millions)		April 3, 2015				March 28, 2014				April 3, 2015				March 28, 2014
	Projected benefit obligation at beginning of year		$	3,409			$	3,506			$	2,873			$	3,012
	Service cost		4				5				23				25
	Interest cost		147				149				117				124
	Plan participants’ contributions		1				1				4				6
	Amendments		—				—				1				(254		)
	Business/contract acquisitions/divestitures		—				(107		)		(6		)		9
	Contractual termination benefits		—				—				3				17
	Settlement/curtailment		(487		)		—				(25		)		(46		)
	Actuarial loss (gain)		460				3				491				(135		)
	Benefits paid		(148		)		(148		)		(95		)		(88		)
	Foreign currency exchange rate changes		—				—				(384		)		205
	Other		(1		)		—				4				(2		)
	Projected benefit obligation at end of year		$	3,385			$	3,409			$	3,006			$	2,873
	Reconciliation of Fair Value of Plan Assets		U.S. Pension Plans								Non-U.S. Pension Plans
	(Amounts in millions)		April 3, 2015				March 28, 2014				April 3, 2015				March 28, 2014
	Fair value of plan assets at beginning of year		$	3,263			$	3,125			$	2,824			$	2,550
	Actual return on plan assets		187				364				367				129
	Employer contribution		8				7				45				81
	Plan participants’ contributions		1				1				4				6
	Benefits paid		(148		)		(148		)		(95		)		(88		)
	Business/contract acquisitions/divestitures		—				(86		)		—				9
	Contractual termination benefits		—				—				23				—
	Plan settlement		(488		)		—				(25		)		(46		)
	Foreign currency exchange rate changes		—				—				(340		)		183
	Other		—				—				(1		)		—
	Fair value of plan assets at end of year		$	2,823			$	3,263			$	2,802			$	2,824
	Funded status at end of year		$	(562	)		$	(146	)		$	(204	)		$	(49	)
	The following table provides the amounts recorded in the Company’s Consolidated Balance Sheet:
			U.S. Pension Plans								Non-U.S. Pension Plans
	(Amounts in millions)		April 3, 2015				March 28, 2014				April 3, 2015				March 28, 2014
	Non-current assets		$	—			$	—			$	83			$	166
	Current liabilities - Accrued expenses and other current liabilities		(8		)		(8		)		(4		)		(7		)
	Non-current liabilities - Other long-term liabilities		(554		)		(138		)		(283		)		(208		)
	Net amount recorded		$	(562	)		$	(146	)		$	(204	)		$	(49	)
	The following is a summary of amounts in accumulated other comprehensive loss, before tax effects, as of April 3, 2015 and March 28, 2014 that have not been recognized in the Consolidated Statements of Operations as components of net periodic pension cost:
			U.S. Pension Plans								Non-U.S. Pension Plans
	(Amounts in millions)		April 3, 2015				March 28, 2014				April 3, 2015				March 28, 2014
	Net transition obligation		$	—			$	—			$	2			$	3
	Prior service cost		—				2				(273		)		(279		)
	Accumulated other comprehensive loss		$	—			$	2			$	(271	)		$	(276	)
	The following table summarizes the weighted average assumptions used in the determination of the Company’s pension plans’ benefit obligations as of April 3, 2015 and March 28, 2014:
		U.S. Pension Plans						Non-U.S. Pension Plans
		April 3, 2015			March 28, 2014			April 3, 2015			March 28, 2014
	Discount rate	3.9	%		4.6	%		3	%		4.3	%
	Rates of increase in compensation levels	4.4	%		4.3	%		2.8	%		3.4	%
	The following table lists selected information for the pension plans as of April 3, 2015 and March 28, 2014:
			U.S. Pension Plans								Non-U.S. Pension Plans
	(Amounts in millions)		April 3, 2015				March 28, 2014				April 3, 2015				March 28, 2014
	Projected benefit obligation		$	3,385			$	3,409			$	3,006			$	2,873
	Accumulated benefit obligation		3,372				3,394				2,948				2,833
	Fair value of plan assets		2,823				3,263				2,802				2,824
			Pension Plans with Projected Benefit Obligation in Excess of Plan Assets								Pension Plans with Accumulated Benefit Obligation in Excess of Plan Assets (U.S. and Non-U.S.)
			(U.S. and Non-U.S.)
	(Amounts in millions)		April 3, 2015				March 28, 2014				April 3, 2015				March 28, 2014
	Projected benefit obligation		$	4,035			$	3,945			$	4,007			$	3,917
	Accumulated benefit obligation		3,976				3,906				3,958				3,888
	Fair value of plan assets		3,186				3,585				3,166				3,564
	The net periodic pension cost for U.S. and non-U.S. pension plans included the following components:
			U.S. Pension Plans												Non-U.S. Pension Plans
	(Amounts in millions)		April 3,				March 28,				March 29,				April 3,				March 28,			March 29,
			2015				2014				2013				2015				2014			2013
Service cost		$	4			$	5			$	10			$	23			$	25		$	25
Interest cost		147				149				153				117				124			123
Expected return on assets		(233		)		(216		)		(170		)		(181		)		(166		)	(122		)
Amortization of transition obligation		—				—				—				1				1			1
Amortization of prior service costs		—				2				2				(10		)		(5		)	(1		)
Contractual termination benefit		—				—				—				3				17			20
Settlement loss(gain)		59				(28		)		—				1				—			(8		)
Recognition of actuarial loss/(gain)		450				(138		)		115				274				(101		)	199
Net periodic pension expense/(income)		$	427			$	(226	)		$	110			$	228			$	(105	)	$	237
Other before tax changes in plan assets and benefit obligations recognized in other comprehensive income during fiscal years 2015, 2014 and 2013 included the following components:
		U.S. Pension Plans												Non-U.S. Pension Plans
(Amounts in millions)		April 3,				March 28,				March 29,				April 3,				March 28,			March 29,
		2015				2014				2013				2015				2014			2013
Prior service (credit)/cost		$	—			$	—			$	—			$	2			$	(265	)	$	(27	)
Amortization of:
Transition (asset)/obligation		—				—				—				(1		)		(1		)	(1		)
Prior service (credit)/cost		(2		)		(2		)		(2		)		10				5			1
Foreign currency exchange rate changes		—				—				—				—				(2		)	—
Total recognized in other comprehensive income		$	(2	)		$	(2	)		$	(2	)		$	11			$	(263	)	$	(27	)
Information about the expected cash flows for pension plans as of April 3, 2015, is as follows:
(Amounts in millions)		U.S. Plans				Non-U.S. Plans
Employer contributions:
2016		$	8			$	46
Benefit Payments:
2016		$	161			$	104
2017		164				111
2018		173				119
2019		180				128
2020		186				136
2021-2025		990				835
The following tables provide reconciliations of the changes in postretirement plans’ benefit obligations and assets and a statement of their funded status:
Reconciliation of Accumulated Postretirement Benefit Obligation
(Amounts in millions)		April 3, 2015				March 28, 2014
Accumulated benefit obligation at beginning of year		$	221			$	253
Service cost		2				3
Interest cost		7				10
Plan amendments		(96		)		—
Business/contract acquisitions/divestitures		—				(15		)
Actuarial loss/(gain)		(4		)		(16		)
Benefits paid		(10		)		(11		)
Retiree drug subsidy reimbursement		—				1
Foreign currency exchange rate changes		(1		)		(1		)
Other		—				(3		)
Accumulated benefit obligation at end of year		$	119			$	221
Reconciliation of Fair Value of Plan Assets
(Amounts in millions)		April 3, 2015				March 28, 2014
Fair value of plan assets at beginning of year		$	82			$	84
Actual return on plan assets		6				10
Employer contribution		2				6
Retiree drug subsidy		—				1
Business contract/acquisitions/divestitures		—				(8		)
Benefits paid		(10		)		(11		)
Fair value of plan assets at end of year		$	80			$	82
Funded status at end of year		$	(39	)		$	(139	)
The following table provides the amounts recorded in the Company’s Consolidated Balance Sheets:
(Amounts in millions)		April 3, 2015				March 28, 2014
Non-current assets		$	2			$	—
Current liabilities - Accrued expenses and other current liabilities		(2		)		(4		)
Non-current liabilities - Other long-term liabilities		(39		)		(135		)
Net amount recorded		$	(39	)		$	(139	)
The following is a summary of amounts in accumulated other comprehensive loss as of April 3, 2015 and March 28, 2014 that have not been recognized in the Consolidated Statements of Operations as components of net periodic benefit cost:
(Amounts in millions)		April 3, 2015				March 28, 2014
Prior service (credit)/cost		$	(95	)		$	(15	)
Accumulated other comprehensive loss		$	(95	)		$	(15	)
The following table lists selected information for other postretirement benefit plans as of April 3, 2015 and March 28, 2014:
										Plans with
										Accumulated Postretirement
										Benefit Obligation in Excess of the Fair Value of Plan Assets
(Amounts in millions)		April 3, 2015				March 28, 2014				April 3, 2015				March 28, 2014
Accumulated postretirement benefit obligation		$	119			$	221			$	41			$	221
Fair value of plan assets		80				82				—				82
As of April 3, 2015 and March 28, 2014, the Company had no postretirement healthcare plan assets outside the U.S. Benefits paid include amounts paid directly from plan assets and amounts paid by the Company.
The following table summarizes the weighted average assumptions used in the determination of the Company’s postretirement benefit obligations as of April 3, 2015 and March 28, 2014:
	April 3, 2015			March 28, 2014
Discount rate	3.7	%		4.3	%
The assumed healthcare cost trend rate used in measuring the accumulated postretirement benefit obligation was 8.8% for fiscal 2015, declining to 5.0% for 2024 and subsequent years for all retirees. Assumed healthcare cost trend rates have a significant effect on the amounts reported for the healthcare plans. A one-percentage point change in the assumed healthcare cost trend rates would have had the following effect:
	One Percentage Point
(Amounts in millions)	Increase				Decrease
Effect on accumulated postretirement benefit obligation as of April 3, 2015	$	2			$	(2	)
The net periodic benefit cost for other postretirement benefit plans included the following components:
(Amounts in millions)		April 3, 2015				March 28, 2014				March 29, 2013
Service cost		$	2			$	3			$	4
Interest cost		7				10				11
Expected return on assets		-6				(5		)		(5		)
Amortization of transition obligation		—				—				—
Amortization of prior service costs		-15				(2		)		(2		)
Settlements loss(gain)		—				(8		)		—
Recognized actuarial loss/(gain)		-5				-20				-8
Net periodic pension expense/(income)		$	(17	)		$	(22	)		$	—
Other before tax changes in plan assets and benefit obligations recognized in other comprehensive income during fiscal years 2015, 2014 and 2013 included the following components:
(Amounts in millions)		April 3, 2015				March 28, 2014				March 29, 2013
Prior service (credit)/cost		(96		)		—				—
Amortization of:
Transition (asset)/obligation		—				—				—
Prior service (credit)/cost		15				2				2
Total recognized in other comprehensive income		$	(81	)		$	2			$	2
The weighted-averages of the assumptions used to determine net periodic benefit cost were as follows.
Fiscal Year End		2015			2014			2013
Discount or settlement rates		4.2	%		4.1	%		4.5	%
Expected long-term rates of return on assets		7.5	%		5.9	%		6.5	%
Following are the expected cash flows for both U.S. and Non-U.S.based other post-retirement benefit plans:
	(Amounts in millions)		U.S. and Non-U.S. Plans
	Employer Contributions:
	2016		$	2
	Benefit Payments:
	2016		$	7
	2017		7
	2018		7
	2019		8
	2020		8
	2021-2025		38
The weighted-averages of the assumptions used to determine net periodic pension cost were:
	U.S. Pension Plans									Non-U.S. Pension Plans
	April 3,			March 28,			March 29,			April 3,			March 28,			March 29,
	2015			2014			2013			2015			2014			2013
Discount or settlement rates	4.5	%		4.4	%		4.6	%		4.2	%		4.1	%		4.7	%
Expected long-term rates of return on assets	7.6	%		7.2	%		6.8	%		6.5	%		6.2	%		5.4	%
Rates of increase in compensation levels	4.3	%		4.3	%		4.1	%		3.4	%		3.5	%		4.1	%
Schedule of fair value of financial assets for pension and postretirement benefits	The fair value of pension plan assets and postretirement benefit plans by investment category and the corresponding level within the fair value hierarchy as of April 3, 2015 are as follows:
	(Amounts in millions)		U.S. Plans				Non-U.S. Plans
	Fair value of pension plan assets		$	2,823			$	2,802
	Fair value of other postretirement benefit plan assets		80				—
	Total fair value of retirement plan assets as of April 3, 2015		$	2,903			$	2,802
	U.S. Pension and Other Postretirement Benefit Plans
	(Amounts in millions)			Level 1				Level 2				Level 3				Total
	Equity:
		U.S. Domestic Stocks		$	149			$	—			$	—			$	149
		Global/International		23				—				—				23
		Domestic Equity commingled funds		4				451				—				455
		Global Equity commingled funds		—				154				—				154
	Fixed Income:
		Fixed income mutual funds		102				—				—				102
		Fixed income commingled funds		3				495				—				498
		Mortgage and asset backed securities		—				52				—				52
		Corporate		—				41				—				41
		U.S. Treasuries		—				23				—				23
		Non U.S. Government		—				2				—				2
		U.S. Government Agencies		—				1				—				1
	Alternatives:
		Other Alternatives (a)		305				528				—				833
		Hedge Funds (b)		—				—				548				548
	Cash and Cash equivalents			1				29				—				30
	Total			$	587			$	1,776			$	548			$	2,911
	Unsettled Trade Receivable and Accrued Income															21
	Unsettled Trade Payable and Accrued Expenses															(29		)
	Fair value of assets for U.S. pension and postretirement medical plans as of April 3, 2015															$	2,903
	(a) Represents institutional funds consisting mainly of equities, bonds, or commodities.
	(b) Represents investments in diversified fund of hedge funds in which the CSC pension plans are the sole investor.
	Below is a reconciliation of the assets valued using significant unobservable inputs (Level 3):
	(Amounts in millions)		Level 3
	Beginning balance as of March 28, 2014		$	328
	Actual return on plan assets held at the reporting date		20
	Purchases, sales, and settlements		200
	Ending balance as of April 3, 2015		$	548
	Non-U.S. Pension Plan Assets
	(Amounts in millions)			Level 1				Level 2				Level 3				Total
	Equity:
		Global/International Equity commingled funds		—				817				—				817
		Global equity mutual funds		—				122				—				122
		U.S./North American Equity commingled funds		$	—			$	64			$	—			$	64
	Fixed Income:
		Fixed income commingled funds		—				944				—				944
	Alternatives:
	Other Alternatives (a)			3				392				116				511
		Hedge Funds (b)		—				—				169				169
	Insurance contracts			—				137				4				141
	Cash and cash equivalents			30				4				—				34
	Total			$	33			$	2,480			$	289			$	2,802
	Unsettled Trades															—
	Fair value of non-U.S. pension assets as of April 3, 2015															$	2,802
	(a) Represents real estate, and other commingled funds consisting mainly of equities, bonds, or commodities.
	(b) Represents investments in diversified fund of hedge funds.
	Below is a reconciliation of the assets valued using significant unobservable inputs (Level 3):
			Non-U.S. Plans Insurance Contracts
	(Amounts in millions)
	Beginning balance as of March 28, 2014		$	209
	Actual return on plan assets held at the reporting date		18
	Purchases, sales, and settlements		(13		)
	Transfers in and / or out of Level 3		105
	Changes due to exchange rates		(30		)
	Ending balance as of April 3, 2015		$	289
	The fair value of our pension plan assets and postretirement benefit plans by investment category and the corresponding level within the fair value hierarchy as of March 28, 2014, are as follows:
(Amounts in millions)		U.S. Plans				Non-U.S. Plans
Fair value of pension plan assets		$	3,263			$	2,824
Fair value of other postretirement benefit plan assets		82				—
Total fair value of retirement plan assets as of March 28, 2014		$	3,345			$	2,824
U.S. Pension and Other Postretirement Benefit Plans
(Amounts in millions)			Level 1				Level 2				Level 3				Total
Equity:
	U.S. Domestic Stocks		$	256			$	—			$	—			$	256
	Global/International		38				—				—				38
	Domestic Equity commingled funds		5				577				—				582
	Global Equity commingled funds		—				312				—				312
Fixed Income:
	Fixed income commingled funds		3				771				—				774
	Mortgage and asset backed securities		—				89				—				89
	Corporate		—				54				—				54
	U.S. Treasuries		—				57				—				57
	Non U.S. Government		—				2				—				2
	U.S. Government Agencies		—				3				—				3
Alternatives:
	Other Alternatives (a)		324				499				—				823
	Hedge Funds (b)		—				—				328				328
Cash and cash equivalents			—				54				—				54
Total			$	626			$	2,418			$	328			$	3,372
Unsettled Trade Receivable and Accrued Income															28
Unsettled Trade Payable and Accrued Expenses															(55		)
Fair value of assets for U.S. pension and postretirement medical plans as of March 28, 2014															$	3,345
(a) Represents institutional funds consisting mainly of equities, bonds, or commodities.
(b) Represents investments in diversified fund of hedge funds in which the CSC pension plans are the sole investor.
Below is a reconciliation of the assets valued using significant unobservable inputs (Level 3):
(Amounts in millions)		Level 3
Beginning balance as of March 29, 2013		$	—
Actual return on plan assets held at the reporting date		(2		)
Purchases, sales, and settlements		330
Ending balance as of March 28, 2014		$	328
NON-U.S. PENSION PLAN ASSETS
(Amounts in millions)			Level 1				Level 2				Level 3				Total
Equity:
	Global/International Equity commingled funds		$	—			$	899			$	—			$	899
	Global equity mutual funds		—				81				—				81
	U.S./North American Equity commingled funds		—				47				—				47
Fixed Income:
	Fixed income commingled funds		—				951				—				951
Alternatives:
Other Alternatives (a)			—				460				26				486
Hedge Funds (b)			—				—				177				177
Insurance contracts			—				161				6				167
Cash equivalents			—				16				—				16
Total			$	—			$	2,615			$	209			$	2,824
Unsettled Trades															—
Fair value of non-U.S. pension assets as of March 28, 2014															$	2,824
(a) Represents real estate, and other commingled funds consisting mainly of equities, bonds, or commodities.
(b) Represents investments in diversified fund of hedge funds.
Below is a reconciliation of the assets valued using significant unobservable inputs (Level 3):
		Non-U.S. Plans Insurance Contracts
(Amounts in millions)
Beginning balance as of March 29, 2013		$	6
Purchases, sales, and settlements		164
Transfers in and / or out of Level 3		32
Changes due to exchange rates		7
Ending balance as of March 28, 2014		$	209
The asset allocation of pension plans at April 3, 2015 and March 28, 2014, respectively, is as follows:
		U.S. Plans						Non-U.S. Plans
Asset Category		April 3, 2015			March 28, 2014			April 3, 2015			March 28, 2014
Equity securities		27	%		35	%		36	%		36	%
Debt securities		25	%		29	%		34	%		34	%
Alternatives		47	%		34	%		24	%		24	%
Cash and other		1	%		2	%		6	%		6	%
Total		100	%		100	%		100	%		100	%
The asset allocation for U.S. other postretirement benefit plans at April 3, 2015 and March 28, 2014, respectively, is as follows:
		Percentage of Plan
		Assets at Year End
Asset Category		April 3, 2015			March 28, 2014
Equity securities		55	%		59	%
Debt securities		39	%		38	%
Cash and other		6	%		3	%
Total		100	%		100	%

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	12 Months Ended
	Apr. 03, 2015
Shareholders' Equity [Abstract]
Class of Treasury Stock	The Company's repurchases, under both the open market purchases and the ASR arrangements, is shown below:
	Fiscal year		Number of shares repurchased			Average price per share		Amount (In millions)
	2015
	Open market purchases (1)		7,560,358			$60.71		$	459
	ASR (3)		4,155,193			$66.69		277
	Total		11,715,551			$62.83		$	736
	2014
	Open market purchases (2)		9,773,469			$51.65		$	505
	2013
	Open market purchases		6,707,652			$45.47		$	305
	(1)	Includes $6 million paid during the first quarter of fiscal 2015 for shares purchased during the fourth quarter of fiscal 2014 that had not yet settled as of March 28, 2014.
	(2)	Includes $22 million paid during the first quarter of fiscal 2014 for shares purchased during the fourth quarter of fiscal 2013 that had not yet settled as of March 29, 2013.
	(3)	Reflects initial number of shares repurchased. Final number of shares repurchased will be determined at the maturity of the ASR arrangement.
Accelerated Share Repurchases	The details of the two fiscal 2015 ASR arrangements are as follows:
	Program		Contract maturity		Total value of ASR (in millions)				Number of shares repurchased		Consideration for initial purchase (in millions)			Average price per share
	Second quarter ASR arrangement (1)		6-Nov-14		$	125			1,290,481		$	75		$	58.12
	Fourth quarter ASR arrangement (2)		8-Nov-15		302				2,864,712		202			$	70.55
	Total				$	427			4,155,193		$	277		$	66.69
	(1)	In the third quarter of fiscal 2015, the Company received an additional 31,830 shares and a refund of the $50 million prepayment in cash upon settlement of the second quarter ASR arrangement.
	(2)	Consideration includes transaction costs. The final number of shares ultimately delivered and therefore the average price paid per share will be determined at maturity of the fourth quarter ASR arrangement. CSC may receive a refund of $100 million prepayment in cash or shares upon settlement of the fourth quarter ASR arrangement.
Components of Other Comprehensive Income (Loss), Net of Tax Effects	The following tables show the activity in the components of other comprehensive loss, including the respective tax effects, and reclassification adjustments for the years ended April 3, 2015, March 28, 2014, and March 29, 2013, respectively:
	For the year ended April 3, 2015		Before Tax Amount				Tax Impact Increase/(Decrease)			Net of Tax Amount
	(Amounts in millions)
	Foreign currency translation adjustments		$	(307	)		$	(3	)	$	(310	)
	Loss on foreign currency forward and option contracts		(2		)		—			(2		)
	Pension and other post-retirement benefit plans adjustments:
	Prior service credit (1)		94				(37		)	57
	Amortization of transition obligation (2)		1				—			1
	Amortization of prior service (cost) (2)		(23		)		7			(16		)
	Total pension and other post-retirement benefit plans		72				(30		)	42
	Total other comprehensive loss		$	(237	)		$	(33	)	$	(270	)
	(1)	Represents the result of remeasurement of the U.S. OPEB benefit obligations (see Note 15).
	(2)	Represents current period reclassification out of accumulated other comprehensive loss. The reclassified amounts are included in the net periodic pension cost and net periodic post-retirement benefit cost (see Note 15).
	For the year ended March 28, 2014		Before Tax Amount				Tax Impact Increase/(Decrease)			Net of Tax Amount
	(Amounts in millions)
	Foreign currency translation adjustments		$	(79	)		$	(2	)	$	(81	)
	Pension and other post-retirement benefit plans:
	Prior service credit (1)		265				—			265
	Amortization of transition obligation (2)		1				—			1
	Amortization of prior service (cost) (2)		(5		)		1			(4		)
	Foreign currency exchange (loss) gain		2				—			2
	Total pension and other post-retirement benefit plans		263				1			264
	Total other comprehensive income (loss)		$	184			$	(1	)	$	183
	(1)	Represents the result of remeasurement of the pension liability associated primarily with plans in the U.K.(see Note 15).
	(2)	Represents current period reclassification out of accumulated other comprehensive loss. The reclassified amounts are included in the net periodic pension cost and net periodic post-retirement benefit cost (see Note 15).
	For the year ended March 29, 2013		Before Tax Amount				Tax Impact Increase/(Decrease)			Net of Tax Amount
	(Amounts in millions)
	Foreign currency translation adjustments		$	(104	)		$	12		$	(92	)
	Pension and other post-retirement benefit plans:
	Prior service (cost)		27				(8		)	19
	Amortization of transition obligation (1)		1				—			1
	Amortization of prior service (costs) (1)		(1		)		1			—
	Foreign currency exchange loss		—				(8		)	(8		)
	Total pension and other post-retirement benefit plans		27				(15		)	12
	Total other comprehensive loss		$	(77	)		$	(3	)	$	(80	)
	(1)	Represents current period reclassification out of accumulated other comprehensive loss. The reclassified amounts are included in the net periodic pension cost and net periodic post-retirement benefit cost (see Note 15).
Schedule of Accumulated Other Comprehensive Income (Loss)	The following table shows the changes in accumulated other comprehensive gain (loss) for fiscal 2015, 2014, and 2013:
	(Amounts in millions)		Foreign Currency Translation Adjustments				Cash Flow Hedge			Pension and Other Postretirement Benefit Plans			Accumulated Other Comprehensive Income (Loss)
	Balance at March 30, 2012		$	167			$	—		21			188
	Current-period other comprehensive (loss), net of taxes		(92		)		—			11			(81		)
	Amounts reclassified from accumulated other comprehensive loss, net of taxes		—				—			1			1
	Balance at March 29, 2013		$	75			$	—		33			108
	Current-period other comprehensive income (loss), net of taxes		(81		)		—			267			186
	Amounts reclassified from accumulated other comprehensive loss, net of taxes		—				—			(15		)	(15		)
	Balance at March 28, 2014		$	(6	)		$	—		$	285		$	279
	Current-period other comprehensive (loss) income, net of taxes		(310		)		(2		)	57			(255		)
	Amounts reclassified from accumulated other comprehensive loss, net of taxes		—				—			(3		)	(3		)
	Balance at April 3, 2015		$	(316	)		$	(2	)	$	339		$	21

Stock_Incentive_Plans_Tables

Stock Incentive Plans (Tables)	12 Months Ended
	Apr. 03, 2015
Stock Incentive Plans [Abstract]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	The Company recognized stock-based compensation expense for fiscal 2015, fiscal 2014, and fiscal 2013 as follows:
			Twelve Months Ended
	(Amounts in millions)		April 3, 2015				March 28, 2014				March 29, 2013
	Cost of services		$	19			$	25			$	22
	Selling, general and administrative		49				48				27
	Total		$	68			$	73			$	49
	Total, net of tax		$	43			$	46			$	31
Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions [Table Text Block]	In calculating the compensation expense for its stock incentive plans, the Company used the following weighted average assumptions:
		Fiscal Year
		2015			2014			2013
	Risk-free interest rate	2.07	%		1.32	%		1.15	%
	Expected volatility	33	%		34	%		36	%
	Expected term (in years)	6.22			6.48			6.59
	Dividend yield	1.5	%		1.71	%		2.86	%
Disclosure of share based compensation arrangements by share based payment award	Information concerning stock options granted under stock incentive plans during fiscal 2015, fiscal 2014, and fiscal 2013 is as follows:
		Number			Weighted				Weighted		Aggregate
		of Option Shares			Average				Average		Intrinsic
					Exercise				Remaining		Value
					Price				Contractual		(In millions)
									Term
	Outstanding as of March 30, 2012	17,733,562			$	46.13			5.08		$	1
	Granted	3,707,172			27.46
	Exercised	(1,497,686	)		39.27						10
	Canceled/Forfeited	(1,113,422	)		35.36
	Expired	(3,689,059	)		45.28
	Outstanding as of March 29, 2013	15,140,567			43.23				5.45		113
	Granted	2,199,369			45.2
	Exercised	(5,015,849	)		44.1						53
	Canceled/Forfeited	(1,247,511	)		33.89
	Expired	(1,246,965	)		52.05
	Outstanding as of March 28, 2014	9,829,611			43.3				5.73		167
	Granted	1,331,862			60.89
	Exercised	(4,476,715	)		45.19						82
	Canceled/Forfeited	(1,057,332	)		42.67
	Expired	(71,117	)		45.53
	Outstanding as of April 3, 2015	5,556,309			46.08				5.93		107
	Vested and expected to vest in the future as of April 3, 2015	5,436,550			45.84				5.87		106
	Exercisable as of April 3, 2015	3,318,051			43.19				4.2		74
	Information concerning RSUs granted to non-employee directors during fiscal 2015, fiscal 2014, and fiscal 2013 is as follows:
		Number of			Weighted
		Shares			Average
					Fair Value
	Outstanding as of March 30, 2012	196,361			$	42.81
	Granted	42,800			30.3
	Settled	(50,716	)		43.3
	Canceled/Forfeited	—			—
	Outstanding as of March 29, 2013	188,445			39.85
	Granted	25,000			51.55
	Settled	(29,299	)		35.81
	Canceled/Forfeited	—			—
	Outstanding as of March 28, 2014	184,146			42.07
	Granted	22,100			59.63
	Settled	(62,260	)		44.1
	Canceled/Forfeited	—			—
	Outstanding as of April 3, 2015	143,986			43.88
	Information concerning RSUs (including PSUs) granted under the stock incentive plans during fiscal 2015, fiscal 2014, and fiscal 2013, is as follows:
		Number of			Weighted
		Shares			Average
					Fair Value
	Outstanding as of March 30, 2012	1,740,925			$	40.29
	Granted	1,724,639			26.12
	Settled	(423,321	)		33.17
	Canceled/Forfeited	(778,971	)		38.27
	Outstanding as of March 29, 2013	2,263,272			31.53
	Granted	2,018,416			49.05
	Settled	(464,293	)		33.06
	Canceled/Forfeited	(629,654	)		38.11
	Outstanding as of March 28, 2014	3,187,741			41.34
	Granted	1,000,150			60.91
	Settled	(829,861	)		40.81
	Canceled/Forfeited	(778,355	)		42.62
	Outstanding as of April 3, 2015	2,579,675			48.7
Schedule of share based compensation shares authorized under stock option plans by exercise price range
			April 3, 2015
			Options Outstanding									Options Exercisable
	Range of Option Exercise Price		Number			Weighted				Weighted		Number	Weighted
			Outstanding			Average				Average		Exercisable	Average
						Exercise				Remaining			Exercise
						Price				Contractual			Price
										Term
	$23.06 - $44.65		2,706,562			$	36.39			6.64		1,675,961	$	34.65
	$44.89 - $60.90		2,756,837			55.03				5.15		1,633,753	51.85
	$61.93 - $63.06		92,910			62.62				8.58		8,337	62.36
			5,556,309									3,318,051

Cash_Flows_Tables

Cash Flows (Tables)	12 Months Ended
	Apr. 03, 2015
Cash Flow - Supplemental Disclosure [Abstract]
Cash payments for interest on indebtedness and for taxes, supplemental information on cash flow	Cash payments for interest on indebtedness and cash payments for taxes on income are as follows:
		Twelve Months Ended
	(Amounts in millions)	April 3, 2015		March 28, 2014		March 29, 2013
	Interest	$	144	$	140	$	186
	Taxes on income, net of refunds	146		122		214
Non-cash investing activities	Non-cash investing activities include the following:
		Twelve Months Ended
	(Amounts in millions)	April 3, 2015		March 28, 2014		March 29, 2013
	Capital expenditures in accounts payable and accrued expenses	$	39	$	45	$	32
	Capital expenditures through capital lease obligations	24		149		181
	Assets acquired under long-term financing	64		49		26

Other_Income_Expense_Net_Table

Other (Income) Expense, Net (Tables)	12 Months Ended
	Apr. 03, 2015
Other Income and Expenses [Abstract]
Schedule of Other Income (Expense)	The components of other (income) expense, net for fiscal 2015, fiscal 2014, and fiscal 2013 are:
		Twelve Months Ended
	(Amounts in millions)	April 3, 2015		March 28, 2014		March 29, 2013
	Foreign currency loss	$	11	$	15	$	17
	Other losses (gains)	1		3		(42		)
	Total	$	12	$	18	$	(25	)

Segment_and_Geographic_Informa1

Segment and Geographic Information (Tables)	12 Months Ended
	Apr. 03, 2015
Segment and Geographic Information [Abstract]
Operating Results by Reportable Segment	The following table summarizes the operating results by reportable segment:
	Twelve Months Ended
	(Amounts in millions)	GBS			GIS			NPS			Corporate				Total
	April 3, 2015
	Revenues	$	4,036		$	4,080		$	4,057		$	—			$	12,173
	Operating income (loss)	405			162			591			(70		)		1,088
	Depreciation and amortization	149			673			137			18				977
	March 28, 2014
	Revenues	$	4,321		$	4,578		$	4,099		$	—			$	12,998
	Operating income (loss)	574			382			524			(64		)		1,416
	Depreciation and amortization	152			704			148			14				1,018
	March 29, 2013
	Revenues	$	4,844		$	4,689		$	4,662		$	—			$	14,195
	Operating income (loss)	401			162			511			(113		)		961
	Depreciation and amortization	176			722			158			14				1,070
Reconciliation of Consolidated Operating Income to Income Before Taxes	Reconciliation of consolidated operating income to (loss) income from continuing operations before taxes is as follows:
		Twelve Months Ended
	(Amounts in millions)	April 3, 2015			March 28, 2014			March 29, 2013
	Operating income (1)	$	1,088		$	1,416		$	961
	Corporate G&A	(242		)	(263		)	(293		)
	Pension & OPEB actuarial (losses) gains	(782		)	259			(297		)
	SEC settlement related charges and other (2)	(200		)	—			—
	Interest expense	(148		)	(147		)	(183		)
	Interest income	20			16			22
	Other income (expense), net	(12		)	(18		)	25
	(Loss) income from continuing operations before taxes	$	(276	)	$	1,263		$	235
	(1) The impact of the change in pension accounting policy was an increase in operating income of $263 million, $94 million, and $83 million for the twelve months ended April 3, 2015, March 28, 2014, and March 29, 2013, respectively.
	(2) This item primarily relates to the SEC investigation settlement (see Note 2).
Revenue and property and equipment, net by geographic segment	Geographic revenue, property and equipment, net, total assets, and capital expenditures for the three years ended April 3, 2015, March 28, 2014, and March 29, 2013, are as follows:
		April 3, 2015
	(Amounts in millions)	United States			United Kingdom			Other Europe			Other International			Total
	Revenue	$	7,322		$	1,721		$	1,928		$	1,202		$	12,173
	Property and Equipment, net	978			257			176			172			1,583
	Total Assets	5,956			1,620			1,189			1,436			10,201
	Capital Expenditures	225			58			73			50			406
		March 28, 2014
		United States			United Kingdom			Other Europe			Other International			Total
	Revenue	$	7,766		$	1,699		$	2,150		$	1,383		$	12,998
	Property and Equipment, net	1,177			335			253			266			2,031
	Total Assets	6,728			1,614			1,473			1,574			11,389
	Capital Expenditures	333			89			85			88			595
		March 29, 2013
		United States			United Kingdom			Other Europe			Other International			Total
	Revenue	$	8,571		$	1,729		$	2,193		$	1,702		$	14,195
	Property and Equipment, net	1,273			320			217			374			2,184
	Total Assets	6,454			1,389			1,487			1,921			11,251
	Capital Expenditures	290			70			80			128			568

Restructuring_Costs_Tables

Restructuring Costs (Tables)	12 Months Ended
	Apr. 03, 2015
Restructuring Costs [Abstract]
Schedule of Restructuring and Related Costs	The composition of the restructuring liability for the Fiscal 2015 Plan as of April 3, 2015 is as follows:
	(Amounts in millions)		Restructuring liability as of March 28, 2014			Costs expensed in fiscal 2015			Less: costs not affecting restructuring liability (1)			Cash Paid				Other(2)			Restructuring liability as of April 3, 2015
	Workforce reductions		$	—		$	265		$	(10	)	$	(21	)		$	(4	)	$	230
	Facilities costs		—			8			(3		)	—				—			$	5
			$	—		$	273		$	(13	)	$	(21	)		$	(4	)	$	235
	(1)	Charges primarily consist of pension benefit augmentations and are recorded as a pension liability.
	(2)	Foreign currency translation adjustments.
	The composition of restructuring expenses for fiscal years 2015, 2014, and 2013 by financial statement line item is as follows:
			Twelve Months Ended
	(Amounts in millions)		April 3, 2015			March 28, 2014			March 29, 2013
	Cost of services		$	253		$	70		$	238
	Selling, general and administrative		8			6			26
	Total		$	261		$	76		$	264
	The composition of the restructuring liability for the Fiscal 2012 plan as of April 3, 2015 is as follows:
	(Amounts in millions)		Restructuring liability as of March 28, 2014		Costs expensed in fiscal 2015			Less: costs not affecting restructuring liability		Cash paid		Other (1)			Restructuring liability as of April 3, 2015
	Facilities costs		2		—			—		(2	)	1			1
	(1) Foreign currency translation adjustments.
	The composition of the restructuring liability for the Fiscal 2012 plan as of March 28, 2014 was as follows:
	(Amounts in millions)		Restructuring liability as of March 29, 2013			Costs expensed in fiscal 2014			Cash paid			Other (1)				Restructuring liability as of March 28, 2014
	Workforce reductions		$	9		$	2		$	(10	)	$	(1	)		$	—
	Facilities costs		5			—			(3		)	—				2
	Total		$	14		$	2		$	(13	)	$	(1	)		$	2
	(1) Foreign currency translation adjustments and reclassification of $1 million to liabilities held for sale related to the small software business that CSC committed to sell in fiscal 2014 and completed in fiscal 2015 (see Note 5).
	The composition of the restructuring liability for the Fiscal 2013 Plan as of April 3, 2015 is as follows:
	(Amounts in millions)		Restructuring liability as of March 28, 2014			Costs expensed in fiscal 2015			Less: costs not affecting restructuring liability (1)			Cash paid				Other(2)			Restructuring liability as of April 3, 2015
	Workforce reductions		$	70		$	(13	)	$	7		$	(57	)		$	(4	)	$	3
	Facilities costs		13			1			—			(8		)		—			6
			$	83		$	(12	)	$	7		$	(65	)		$	(4	)	$	9
	(1)    Charges primarily consist of pension benefit augmentations and are recorded as a pension liability.
	(2)    Foreign currency translation adjustments.
	The composition of the restructuring liability for the Fiscal 2013 Plan as of March 28, 2014 was as follows:
	(Amounts in millions)		Restructuring liability as of March 29, 2013			Costs expensed in fiscal 2014			Less: costs not affecting restructuring liability (1)			Cash paid				Other(3)			Restructuring liability as of March 28, 2014
	Workforce reductions		$	155		$	63		$	(22	)	$	(130	)		$	4		$	70
	Facilities costs		10			11			—			(8		)		—			13
	Other(2)		11			—			—			(11		)		—			—
			$	176		$	74		$	(22	)	$	(149	)		$	4		$	83
	(1)	Charges primarily consist of pension benefit augmentations and are recorded as a pension liability.
	(2)	Other direct costs associated with the restructuring program.
	(3)	Foreign currency translation adjustments.
Schedule of Restructuring Reserve by Type of Cost	The composition of restructuring costs by segment for fiscal years 2015, 2014, and 2013 is as follows:
			Twelve Months Ended
	(Amounts in millions)		3-Apr-15			28-Mar-14			29-Mar-13
	GBS		$	137		$	46		$	87
	GIS		114			28			142
	NPS		5			2			13
	Corporate		5			—			22
	Total		$	261		$	76		$	264

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	12 Months Ended
	Apr. 03, 2015
Commitments and Contingencies [Abstract]
Future minimum operating lease payments	Minimum fixed rentals required for the next five years and thereafter under operating leases in effect at April 3, 2015, are as follows:
	Fiscal Year
	(Amounts in millions)	Real Estate		Equipment
	2016	$	134	$	26
	2017	111		13
	2018	71		4
	2019	50		2
	2020	33		—
	Thereafter	25		—
		$	424	$	45
Expiration of financial guarantees	The following table summarizes the expiration of the Company’s financial guarantees and stand-by letters of credit outstanding as of April 3, 2015:
	(Amounts in millions)	Fiscal 2016		Fiscal 2017		Fiscal 2018 and thereafter		Total
	Surety bonds	$	28	$	—	$	—	$	28
	Letters of credit	47		2		32		81
	Stand-by letters of credit	39		—		3		42
	Total	$	114	$	2	$	35	$	151

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Change in Estimates (Details) (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Apr. 03, 2015		Mar. 28, 2014		Mar. 29, 2013
Summary of Significant Accounting Policies [Abstract]
Gross favorable	$112		$125		$142
Gross unfavorable	-40		-50		-122
Total net adjustments, before taxes and noncontrolling interests (1)	$72	[1]	$75	[1]	$20	[1]
Impact on diluted EPS from continuing operations	$0.29		$0.31		($0.10)
[1]	Quarterly changes in estimated profitability on the same fixed price contract are disclosed gross as either favorable or unfavorable.

Summary_of_Significant_Account4

Summary of Significant Accounting Policies - Revenue Recognition (Details)	12 Months Ended
	Apr. 03, 2015
Revenue Recognition [Abstract]
Maximum percentage of the Company's revenues recognized under the percentage-of-completion method (in hundredths)	16.50%

Summary_of_Significant_Account5

Summary of Significant Accounting Policies - Depreciation and Amortization (Details)	12 Months Ended
	Apr. 03, 2015
Building
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life (in years)	40 years
Leasehold improvements
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life, description	Shorter of lease term or useful life
Outsourcing contract costs
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life, description	Contract life, excluding option years
Customer relationships
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life, description	Expected customer service life
Acquired contract related intangibles
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life, description	Contract life and first contract renewal, where applicable
Minimum | Computers and related equipment
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life (in years)	3 years
Minimum | Furniture and other equipment
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life (in years)	2 years
Minimum | Software
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life (in years)	2 years
Maximum | Computers and related equipment
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life (in years)	5 years
Maximum | Furniture and other equipment
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life (in years)	15 years
Maximum | Software
Property, Plant, and Equipment - Useful Life [Abstract]
Property, plant and equipment useful life (in years)	7 years

Summary_of_Significant_Account6

Summary of Significant Accounting Policies Summary of Significant Accounting Policies - Stock-Based Compensation (Details) (Stock Options)	12 Months Ended
	Apr. 03, 2015
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Historical volatility weight	33.33%
Implied volatility weight	66.67%

Settlement_of_SEC_Investigatio1

Settlement of SEC Investigation (Details) (USD $)	12 Months Ended			3 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013	Jan. 02, 2015
Loss Contingencies [Line Items]
Litigation settlement amount	($197)	$0	$0
NHS contract | Contracts Accounted for under Percentage of Completion, U.S. Claims
Loss Contingencies [Line Items]
Penalty paid				190
Litigation settlement amount	($197)

Defined_Benefit_Pension_Plan_A2

Defined Benefit Pension Plan Accounting Policy Changes Impact on Consolidated Statement of Operations (Details) (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Costs of services (excludes depreciation and amortization and restructuring costs)	$9,534		$11,293
Selling, general and administrative expenses	1,340
Income from continuing operations before taxes	-276	1,263	235
Income tax (benefit) expense	-312	383	-62
Income (loss) from continuing operations	36	880
Net income (loss)	7	968	779
Net income attributable to noncontrolling interest, net of tax	15	21	19
Net income (loss) attributable to CSC common stockholders	-8	947	760
Basic EPS - Continuing operations (in dollars per share)	$0.15	$5.81	$1.80
Previous accounting methods | As previously reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Costs of services (excludes depreciation and amortization and restructuring costs)	9,084
Selling, general and administrative expenses	1,271
Income from continuing operations before taxes	243
Income tax (benefit) expense	-164
Income (loss) from continuing operations	407
Net income (loss)	378
Net income attributable to noncontrolling interest, net of tax	13
Net income (loss) attributable to CSC common stockholders	365
Basic EPS - Continuing operations (in dollars per share)	$2.76
Diluted EPS - Continuing operations (in dollars per share)	$2.70
Impact of change in accounting methods
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Costs of services	450
Selling, general and administrative expenses	69
Income from continuing operations, before taxes	-519
Taxes on income	-148
Loss from continuing operations	-371
Net loss	-371
Net income attributable to noncontrolling interest, net of tax	2
Net income (loss) attributable to CSC common stockholders	($373)
Basic EPS - Continuing operations (in dollars per share)	($2.61)
Diluted EPS - Continuing operations (in dollars per share)	($2.55)

Defined_Benefit_Pension_Plan_A3

Defined Benefit Pension Plan Accounting Policy Changes Impact on Consolidated Statement of Comprehensive Income (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)	$7	$968	$779
Foreign currency translation adjustments	-310	-81	-92
Net unamortized gain (loss), net of tax	0
Amortization of prior service (cost)	-16	-4	0
Amortization of net actuarial gain	0
Foreign currency exchange (loss) gain	0	2	-8
Pension and other post-retirement benefit plans, net of taxes	42	264	12
Other comprehensive (loss) income	-270	183	-80
Comprehensive income attributable to noncontrolling interest	15	30	19
Comprehensive income attributable to CSC common stockholders	-278	1,121	680
Previous accounting methods | As previously reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)	378
Foreign currency translation adjustments	-207
Net unamortized gain (loss), net of tax	-639
Amortization of prior service (cost)	-18
Amortization of net actuarial gain	159
Foreign currency exchange (loss) gain	8
Pension and other post-retirement benefit plans, net of taxes	-432
Other comprehensive (loss) income	-641
Comprehensive income attributable to noncontrolling interest	13
Comprehensive income attributable to CSC common stockholders	-276
Impact of change in accounting methods
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net loss	-371
Foreign currency translation adjustments	-103
Net unamortized gain (loss), net of tax	639
Amortization of prior service (cost)	2
Amortization of net actuarial gain	-159
Foreign currency exchange (loss) gain	-8
Pension and other post-retirement benefit plans, net of taxes	474
Other comprehensive loss, net of taxes	371
Comprehensive income attributable to noncontrolling interest	2
Comprehensive income attributable to CSC common stockholders	($2)

Defined_Benefit_Pension_Plan_A4

Defined Benefit Pension Plan Accounting Policy Changes Impact on Consolidated Balance Sheets (Details) (USD $)	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013	Mar. 30, 2012
In Millions, unless otherwise specified
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Earnings retained for use in business	$912	$1,592
Accumulated other comprehensive loss	21	279	108	188
Noncontrolling interest in subsidiaries	28	32
Previous accounting methods | As previously reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Earnings retained for use in business	2,475
Accumulated other comprehensive loss	-1,539
Noncontrolling interest in subsidiaries	25
Impact of change in accounting methods
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Earnings retained for use in business	-1,563
Accumulated other comprehensive (loss) income	1,560
Noncontrolling interest in subsidiaries	$3

Defined_Benefit_Pension_Plan_A5

Defined Benefit Pension Plan Accounting Policy Changes Impact on Consolidated Statement of Cash Flows (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)	$7	$968	$779
Pension & OPEB actuarial & settlement losses (gains)	782	-259	297
Deferred taxes	-449	169	99
Increase (decrease) in accounts payable and accrued expenses	-335	-549	-766
Increase (decrease) in income taxes payable and income tax liability	-23	119	40
Other operating activities, net	16	-41	-40
Previous accounting methods | As previously reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)	378
Pension & OPEB actuarial & settlement losses (gains)	0
Deferred taxes	-301
Increase (decrease) in accounts payable and accrued expenses	-86
Increase (decrease) in income taxes payable and income tax liability	-112
Other operating activities, net	119
Impact of change in accounting methods
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net loss	-371
Pension & OPEB actuarial & settlement losses (gains)	782
Deferred taxes	-148
Increase (decrease) in accounts payable and accrued expenses	-249
Increase (decrease) in income taxes payable and income tax liability	89
Other operating activities, net	($103)

Acquisitions_Fiscal_2015_Acqui

Acquisitions Fiscal 2015 Acquisitions (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015		Mar. 28, 2014		Mar. 29, 2013
	Business
Business Acquisition [Line Items]
Number of businesses acquired	2
Goodwill	$1,671		$1,667		$1,516
Revenues	12,173		12,998		14,195
Operating income (loss)	1,088	[1]	1,416	[1]	961	[1]
Privately Held Entities
Business Acquisition [Line Items]
Number of businesses acquired	2
Cash consideration for business acquisition	49
Current and long-term assets acquired	5
Finite-lived intangible asset acquired	9
Current and long-term liabilities assumed	-10
Goodwill	45
Useful life	15 years
Revenues	18
Operating income (loss)	$1
[1]	The impact of the change in pension accounting policy was an increase in operating income of $263 million, $94 million, and $83 million for the twelve months ended April 3, 2015, March 28, 2014, and March 29, 2013, respectively.

Acquisitions_Fiscal_2014_Acqui

Acquisitions Fiscal 2014 Acquisitions (Details) (USD $)	12 Months Ended						0 Months Ended	3 Months Ended	0 Months Ended
In Millions, except Share data, unless otherwise specified	Apr. 03, 2015		Mar. 28, 2014		Mar. 29, 2013		Nov. 15, 2013	Mar. 28, 2014	Aug. 05, 2013	Dec. 27, 2013
Business Acquisition [Line Items]
Payment of contingent consideration	$0		($98)		$0
Revenues	12,173		12,998		14,195
Operating income (loss)	1,088	[1]	1,416	[1]	961	[1]
Amortization of acquired intangible	408		402		414
Goodwill	1,671		1,667		1,516			1,667
GBS Segment
Business Acquisition [Line Items]
Revenues	4,036		4,321		4,844
Operating income (loss)	405		574		401
Goodwill	639		680		645			680
GIS Segment
Business Acquisition [Line Items]
Goodwill	199		199		78			199
NPS Segment
Business Acquisition [Line Items]
Revenues	4,057		4,099		4,662
Operating income (loss)	591		524		511
Goodwill	833		788		793			788
ServiceMesh, Inc
Business Acquisition [Line Items]
Total purchase consideration			282				282	282
Consideration transferred, cash							163
Consideration transferred, debt retired							10
Consideration transferred, contingent consideration							119
Transaction costs							4
Contingent consideration from business acquisition							98
Payment of contingent consideration								18
Revenues			18
Operating income (loss)			17
Amortization of acquired intangible			4
Goodwill			184					184
ServiceMesh, Inc | Restricted Stock Units (RSUs)
Business Acquisition [Line Items]
Granted (in shares)							41,000,000
Vesting period (in years)							3 years
ServiceMesh, Inc | GBS Segment
Business Acquisition [Line Items]
Goodwill							28
ServiceMesh, Inc | GIS Segment
Business Acquisition [Line Items]
Goodwill							120
ServiceMesh, Inc | NPS Segment
Business Acquisition [Line Items]
Goodwill							36
ServiceMesh, Inc | Selling, general and administrative
Business Acquisition [Line Items]
Contingent consideration from business acquisition							21
ServiceMesh, Inc | Level 3 | Recurring
Business Acquisition [Line Items]
Contingent consideration from business acquisition										137
InfoChimps Inc
Business Acquisition [Line Items]
Goodwill									27
Cash consideration for business acquisition									27
Current assets acquired									2
Current and long-term liabilities assumed									$2
[1]	The impact of the change in pension accounting policy was an increase in operating income of $263 million, $94 million, and $83 million for the twelve months ended April 3, 2015, March 28, 2014, and March 29, 2013, respectively.

Acquisitions_Fiscal_2014_Purch

Acquisitions Fiscal 2014 Purchase Price Allocation (Details) (USD $)	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013	Nov. 15, 2013
In Millions, unless otherwise specified
Business Acquisition [Line Items]
Goodwill	$1,671	$1,667	$1,516
ServiceMesh, Inc
Business Acquisition [Line Items]
Accounts receivable and other current assets		3
Deferred tax assets		31
Property and equipment and other non-current assets		2
Deferred revenue and other current liabilities		-4
Deferred tax liabilities		-38
Total identifiable net assets acquired		98
Goodwill		184
Total purchase consideration		282		282
Developed Technology Rights | ServiceMesh, Inc
Business Acquisition [Line Items]
Finite-lived intangible asset acquired		94
Customer Relationships and Trade Names | ServiceMesh, Inc
Business Acquisition [Line Items]
Finite-lived intangible asset acquired		$10

Acquisitions_Useful_Lives_of_I

Acquisitions Useful Lives of Intangible Assets (Details) (ServiceMesh, Inc)	12 Months Ended
	Apr. 03, 2015
Developed Technology Rights
Business Acquisition [Line Items]
Useful life	9 years
Customer relationships
Business Acquisition [Line Items]
Useful life	3 years
Trade Names | Minimum
Business Acquisition [Line Items]
Useful life	4 years
Trade Names | Maximum
Business Acquisition [Line Items]
Useful life	6 years

Acquisitions_Fiscal_2013_Acqui

Acquisitions Fiscal 2013 Acquisition (Details) (Privately Held Entity, USD $)	3 Months Ended
In Millions, unless otherwise specified	Sep. 28, 2012
Privately Held Entity
Business Acquisition [Line Items]
Cash consideration for business acquisition	$35
Current assets acquired	4
Finite-lived intangible asset acquired	8
Current and long-term liabilities assumed	-2
Total purchase consideration	$25

Divestitures_Details

Divestitures (Details) (USD $)	3 Months Ended	12 Months Ended			0 Months Ended			3 Months Ended
In Millions, unless otherwise specified	Jul. 04, 2014	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013	Jul. 31, 2014	Jul. 19, 2013	21-May-13	Mar. 28, 2014	Jun. 28, 2013	Sep. 27, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Working capital adjustment	$1
Proceeds from business dispositions		-13	248	1,108
Cash received for net working capital adjustment	2
(Loss) gain on disposition		-21	101	769
Gain (loss) on disposition, net of taxes		-18	86	417
Deductions			53
GBS Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deductions			12	241
European Healthcare | European GBS - IS&S
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amount of cash consideration received					3
Pre-tax loss on divestiture					22
Current assets of divested entity			25		54			25
Cash of divested entity					21
Noncurrent assets of divested entity					25
Current liabilities of divested entity			31		33			31
Noncurrent liabilities of divested entity			25		23			25
Long-lived assets of divested entity			31					31
NPS Applied Technology Division
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amount of cash consideration received						178
Working capital adjustment						6
Proceeds from business dispositions						77
Flood-Insurance-Related Business Process Outsourcing Practice
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amount of cash consideration received							43
Pre-tax loss on divestiture								1
Working capital adjustment	3						4	3
Proceeds from business dispositions							25
Goodwill of divested entity							12
CSC Credit Services, Enterprise System Integration Businessa and CSC Italia [Member] | GBS Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Current assets of divested entity			129					129
Long-lived assets of divested entity			11					11
Number of divestitures in period			3
(Loss) gain on disposition			769
Gain (loss) on disposition, net of taxes			417
Transactions costs			11
Goodwill of divested entity			241					241
Liabilities of divested entity			85					85
CSC Credit Services | GBS Segment
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 | GBS Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amount of cash consideration received				90
Working capital adjustment				13
CSC Italia | GBS Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash of divested entity				8
Cash received for net working capital adjustment										6
Amount of cash paid by Company				35
Paxus
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Amount of cash consideration received				63
Consideration of divested assets				79					10
Consideration received, receivable				16
Consideration, offset again payable due									6
Pre-tax gain from divestiture				38
Paxus | GBS Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Current assets of divested entity				41
Long-lived assets of divested entity				2
Transactions costs				3
Liabilities of divested entity				$5

Divestitures_Summary_of_Discon

Divestitures Summary of Discontinued Operations (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Operations [Abstract]
Revenue	$10	$235	$1,193
(Loss) income from discontinued operations, before taxes	-11	9	116
Income tax expense	0	7	51
Net (loss) income from discontinued operations	-11	2	65
Disposal [Abstract]
(Loss) gain on disposition	-21	101	769
Income tax (benefit) expense	-3	15	352
(Loss) gain on disposition, net of taxes	-18	86	417
(Loss) income from discontinued operations, net of taxes	($29)	$88	$482

Earnings_Loss_Per_Share_Detail

Earnings (Loss) Per Share (Details) (USD $)	12 Months Ended
In Millions, except Share data in Thousands, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Net (loss) income attributable to CSC common shareholders:
From continuing operations	$21	$859	$278
From discontinued operations	-29	88	482
Net (loss) income attributable to CSC common stockholders	($8)	$947	$760
Common share information:
Weighted average common shares outstanding for basic EPS (in shares)	142,557	147,647	154,590
Dilutive effect of stock options and equity awards (in shares)	3,223	3,114	967
Shares for diluted earngns (loss) per share (in shares)	145,780	150,761	155,557
Basic EPS:
Continuing operations (in dollars per share)	$0.15	$5.81	$1.80
Discontinued operations (in dollars per share)	($0.21)	$0.60	$3.12
Total (in dollars per share)	($0.06)	$6.41	$4.92
Diluted EPS:
Discontinued operations (in dollars per share)		$0.58
Total (in dollars per share)	($0.05)

Earnings_Loss_Per_Share_Antidi

Earnings (Loss) Per Share (Antidilutive Shares) (Details)	12 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, Amount	1,077,891	4,573,542	14,755,024
Restricted Stock Units (RSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, Amount	62,243	14,953	6,131
Accelerated Share Repurchases
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share, Amount	173,779

Receivables_Details

Receivables (Details) (USD $)	Apr. 03, 2015	Mar. 28, 2014
In Millions, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, net	$2,369	$2,759
Unbilled recoverable amounts primarily from governments that are expected to be collected after one year	19
Billed trade accounts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, net	1,224	1,564
Unbilled recoverable amounts under contracts in progress [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, net	963	1,036
Other receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables, net	$182	$159

Fair_Value_Details

Fair Value (Details) (Recurring, USD $)	Apr. 03, 2015	Mar. 28, 2014
In Millions, unless otherwise specified
Assets:
Money market funds	$344	$717
Time deposits	411	693
Derivative assets	20	5
Total assets	775	1,415
Liabilities:
Derivative liabilities	5	4
Total liabilities	5	4
Level 1
Assets:
Money market funds	344	717
Time deposits	411	693
Derivative assets	0	0
Total assets	755	1,410
Liabilities:
Derivative liabilities	0	0
Total liabilities	0	0
Level 2
Assets:
Money market funds	0	0
Time deposits	0	0
Derivative assets	20	5
Total assets	20	5
Liabilities:
Derivative liabilities	5	4
Total liabilities	5	4
Level 3
Assets:
Money market funds	0	0
Time deposits	0	0
Derivative assets	0	0
Total assets	0	0
Liabilities:
Derivative liabilities	0	0
Total liabilities	$0	$0

Fair_Value_Financial_Instrumen

Fair Value Financial Instruments (Details) (USD $)	Apr. 03, 2015	Mar. 28, 2014
In Millions, unless otherwise specified
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, net of current maturities	$1,765	$2,207
Accounts receivable with customers involved in bankruptcy proceedings	13
Allowance for doubtful accounts with customers involved in bankruptcy proceedings	9
Other assets with customers in bankruptcy proceedings	1
Accounts payable with customers in bankruptcy proceedings	4
Foreign Exchange Contract
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Number of counterparties to foreign currency derivative instruments	6
Number of counterparties to interest rate derivative instruments	3
Foreign Exchange Contract | Maximum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative instrument, maximum amount of loss	2
Interest Rate Swap | Maximum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative instrument, maximum amount of loss	19
Carrying value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, net of current maturities	1,550	1,874
Fair value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, net of current maturities	$1,681	$2,057

Derivative_Instruments_Details

Derivative Instruments (Details) (USD $)	Apr. 03, 2015	Jan. 02, 2015	Mar. 28, 2014	Sep. 27, 2013
In Millions, unless otherwise specified
Derivative [Line Items]
Estimated fair value of foreign currency derivative assets	$383
Foreign currency cash flow hedge loss to be reclassified during next 12 months, less than		1
Derivative Asset, Fair Value, Gross Liability		1
Option Contracts
Derivative [Line Items]
Notional amount of derivatives outstanding	0		81
Forward Contracts
Derivative [Line Items]
Notional amount of derivatives outstanding	700		816
Senior unsecured and unsubordinated notes | 4.45% term notes, due September 2022
Derivative [Line Items]
Interest Rate Derivative Liabilities, at Fair Value				$275
Debt instrument, stated interest rate (in hundredths)	4.45%		4.45%	4.45%

Derivative_Instruments_Fair_Va

Derivative Instruments - Fair Value (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	$19	$3
Derivative liability, fair value	3	0
Designated as Hedging Instrument | Interest Rate Swap | Fair Value Hedging | Other Operating Income (Expense)
Derivatives, Fair Value [Line Items]
Gain (loss) on derivative instrument	15	3
Designated as Hedging Instrument | Other Assets | Interest Rate Contract
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	18	3
Designated as Hedging Instrument | Other Noncurrent Liabilities | Interest Rate Contract
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	0	0
Designated as Hedging Instrument | Prepaid Expenses and Other Current Assets | Foreign Exchange Forward
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	1	0
Designated as Hedging Instrument | Accrued Expenses And Other Current Liabilities | Foreign Exchange Forward
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	3	0
Designated as Hedging Instrument | Debt Caption | Interest Rate Swap | Fair Value Hedging
Derivatives, Fair Value [Line Items]
Gain (loss) on hedged item	-15	-3
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	1	2
Derivative liability, fair value	2	4
Not Designated as Hedging Instrument | Prepaid Expenses and Other Current Assets | Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Derivative asset, fair value	1	2
Not Designated as Hedging Instrument | Accrued Expenses And Other Current Liabilities | Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Derivative liability, fair value	$2	$4

Derivative_Instruments_Gain_Lo

Derivative Instruments - Gain (Loss) Recognized in OCI (Details) (Foreign Exchange Contract, Designated as Hedging Instrument, Cash Flow Hedging, USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015
Foreign Exchange Contract | Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) recognized in Accumulated OCI (effective portion) for the Twelve Months Ended	($2)
Gain (Loss) reclassified into cost of services from Accumulated OCI (effective portion) for the Twelve Months Ended	0
Gain (Loss) recognized in Other Income (Expense) (ineffective portion) for the Twelve Months Ended	$0

Derivative_Instruments_Nondesi

Derivative Instruments - Nondesignated Hedging (Details) (Not Designated as Hedging Instrument, USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Derivative [Line Items]
Pretax gain (loss) on derivative instruments	($3)	($15)	($17)
Interest Rate Swap | Cost Of Services And Selling, General And Administrative Expenses
Derivative [Line Items]
Pretax gain (loss) on derivative instruments	8	0	0
Foreign Exchange Contract | Other Operating Income (Expense)
Derivative [Line Items]
Pretax gain (loss) on derivative instruments	($11)	($15)	($17)

Property_and_Equipment_Details

Property and Equipment (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Property, Plant and Equipment [Line Items]
Property and equipment—at cost	$5,044	$5,651
Less: accumulated depreciation and amortization	3,461	3,620
Property and equipment, net of accumulated depreciation of $3,620 (2014) and $3,467 (2013)	1,583	2,031
Depreciation expense	606	661	709
Land, buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Property and equipment—at cost	1,107	1,226
Computers and related equipment
Property, Plant and Equipment [Line Items]
Property and equipment—at cost	3,609	4,051
Furniture and other equipment
Property, Plant and Equipment [Line Items]
Property and equipment—at cost	305	346
Construction in progress
Property, Plant and Equipment [Line Items]
Property and equipment—at cost	$23	$28

Intangible_Assets_Summary_of_I

Intangible Assets - Summary of Intangible Assets (Details) (USD $)	Apr. 03, 2015	Mar. 28, 2014
In Millions, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$3,671	$4,383
Accumulated Amortization	2,445	3,033
Net Carrying Value	1,226	1,350
Outsourcing contract costs
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	802	1,465
Accumulated Amortization	476	1,038
Net Carrying Value	326	427
Software
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	2,393	2,330
Accumulated Amortization	1,642	1,680
Net Carrying Value	751	650
Customer and other intangible assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	476	588
Accumulated Amortization	327	315
Net Carrying Value	$149	$273

Intangible_Assets_Narrative_De

Intangible Assets - Narrative (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$408	$402	$414
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Fiscal 2016	330
Fiscal 2017	261
Fiscal 2018	212
Fiscal 2019	176
Fiscal 2020	138
GIS Segment
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Gain (loss) on disposition of intangible assets	53
Outsourcing contract costs
Finite-Lived Intangible Assets [Line Items]
Amortization expense	27	34	40
Contract-based
Finite-Lived Intangible Assets [Line Items]
Amortization expense	10	11	11
Network-related | GIS Segment
Finite-Lived Intangible Assets, Future Amortization Expense [Abstract]
Cash consideration from sale of intangible assets	31
Receivable from sale of intangible assets	22
Software | Purchased software
Finite-Lived Intangible Assets [Line Items]
Amortization expense	143	130	143
Software | Internally developed commercial software
Finite-Lived Intangible Assets [Line Items]
Amortization expense	63	56	53
Software | Internally developed internal-use software
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$6	$2	$2

Intangible_Assets_Purchased_an

Intangible Assets - Purchased and Internally Developed Intangibles (Details) (USD $)	Apr. 03, 2015	Mar. 28, 2014
In Millions, unless otherwise specified
Finite-Lived Intangible Assets [Line Items]
Purchased and internally developed software, net	$1,226	$1,350
Software
Finite-Lived Intangible Assets [Line Items]
Purchased and internally developed software, net	751	650
Purchased software
Finite-Lived Intangible Assets [Line Items]
Purchased and internally developed software, net	256	287
Internally developed commercial software
Finite-Lived Intangible Assets [Line Items]
Purchased and internally developed software, net	364	308
Internally developed internal-use software
Finite-Lived Intangible Assets [Line Items]
Purchased and internally developed software, net	$131	$55

Goodwill_Details

Goodwill (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill, gross, beginning of period	$4,429	$4,278
Accumulated impairment losses, beginning of period	-2,762	-2,762
Goodwill, net, beginning of period	1,667	1,516
Additions	45	211
Deductions		-53
Foreign currency translation	-41	-7
Goodwill, gross, end of period	4,433	4,429
Accumulated impairment losses, end of period	-2,762	-2,762
Goodwill, net, end of period	1,671	1,667
Number of businesses acquired	2
Number of reportable segments	3
GBS Segment
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill, gross, beginning of period	1,381	1,346
Accumulated impairment losses, beginning of period	-701	-701
Goodwill, net, beginning of period	680	645
Additions	0	55
Deductions		-12	-241
Foreign currency translation	-41	-8
Goodwill, gross, end of period	1,340	1,381	1,346
Accumulated impairment losses, end of period	-701	-701	-701
Goodwill, net, end of period	639	680	645
GIS Segment
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill, gross, beginning of period	2,260	2,139
Accumulated impairment losses, beginning of period	-2,061	-2,061
Goodwill, net, beginning of period	199	78
Additions	0	120
Deductions		0
Foreign currency translation	0	1
Goodwill, gross, end of period	2,260	2,260
Accumulated impairment losses, end of period	-2,061	-2,061
Goodwill, net, end of period	199	199
NPS Segment
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill, gross, beginning of period	788	793
Accumulated impairment losses, beginning of period	0	0
Goodwill, net, beginning of period	788	793
Additions	45	36
Deductions		-41
Foreign currency translation	0	0
Goodwill, gross, end of period	833	788
Accumulated impairment losses, end of period	0	0
Goodwill, net, end of period	$833	$788

Income_Taxes_Details

Income Taxes (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Income Taxes [Abstract]
Domestic entities	($369)	$574	($113)
Entities outside the United States	93	689	348
(Loss) income from continuing operations, before taxes	-276	1,263	235
Income tax expense (benefit) on income from continuing operations, current [Abstract]
Federal	49	81	-330
State	-10	7	-5
Foreign	98	126	174
Total Current	137	214	-161
Income tax expense (benefit) on income from continuing operations, deferred [Abstract]
Federal	-126	119	76
State	-21	25	-18
Foreign	-302	25	41
Total Deferred	-449	169	99
Total income tax expense (benefit)	-312	383	-62
Interest and penalties for uncertain tax positions included in current provision (benefit)	1	-9	10
Statutory rate (in hundredths)	35.00%	-35.00%	-35.00%
Difference between the U.S. federal statutory tax rate and effective tax rate [Abstract]
Statutory rate (in hundredths)	-35.00%	35.00%	35.00%
State income tax, net of federal tax (in hundredths)	-4.00%	1.80%	-2.60%
Change in uncertain tax positions (in hundredths)	0.60%	2.90%	2.40%
Foreign tax rate differential (in hundredths)	-127.20%	2.80%	-126.70%
Income tax credits (in hundredths)	-2.00%	-0.30%	-0.10%
Valuation allowance (in hundredths)	32.60%	-11.80%	175.20%
Change in entity tax status (in hundreths)	0.00%	0.00%	-0.70%
Loss on sale of securities (in hundredths)	0.00%	0.80%	-105.40%
Tax audit settlements (in hundredths)	26.40%	0.00%	0.00%
Other items, net (in hundredths)	-4.40%	-0.90%	-3.50%
Effective tax rate (in hundredths)	-113.00%	30.30%	-26.40%
Deferred Tax Assets
Employee benefits	431	333
Tax loss/credit carryforwards	1,083	919
Accrued interest	24	20
State taxes	7	10
Cumulative foreign exchange gain/loss	6	2
Contract accounting	38	38
Other assets	80	66
Total Deferred Tax Assets	1,669	1,388
Valuation allowance	-958	-1,006
Net Deferred Tax Assets	711	382
Deferred Tax Liabilities
Depreciation and amortization	-287	-341
Investment basis differences	-110	-126
Other liabilities	-97	-112
Total Deferred Tax Liabilities	-494	-579
Total Deferred Tax Assets (Liabilities)	217	-197
Current [Abstract]
Prepaid Expenses and Other Current Assets	52	11
Income Tax Receivables	107	92
Deferred tax assets, current	159	103
Non-current [Abstract]
Income Taxes Receivable and Prepaid Taxes	109	123
Other Deferred tax Assets	375	123
Deferred tax assets, noncurrent	484	246
Deferred tax assets, total	643	349
Current [Abstract]
Deferred income taxes, current	-39	-25
Income taxes payable, current	-23	-52
Deferred tax liabilities, current	-62	-77
Non-current [Abstract]
Deferred taxes, noncurrent	-171	-307
Tax liability for uncertain tax positions, noncurrent	-241	-250
Deferred tax liabilities, noncurrent	-412	-557
Deferred tax liabilities, total	-474	-634
Valuation Allowance [Line Items]
Valuation allowance	958	1,006
Increase (decrease) in valuation allowance	-48
United Kingdom | Foreign Tax Authority
Difference between the U.S. federal statutory tax rate and effective tax rate [Abstract]
Valuation allowance (in hundredths)	85.20%
Deferred Tax Assets
Valuation allowance	-54
Valuation Allowance [Line Items]
Valuation allowance	54
Increase (decrease) in valuation allowance	-264
Luxembourg | Foreign Tax Authority
Valuation Allowance [Line Items]
Increase (decrease) in valuation allowance	($325)

Income_Taxes_Effective_Tax_Rat

Income Taxes Effective Tax Rate Reconciliation, Narrative (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Income Tax Rate Reconciliation [Line Items]
SEC settlement	($190)
Effective tax rate reconciliation, litigation settlement, amount	73
Effective income tax rate reconciliation, litigation settlement (in hundredths)	26.40%	0.00%	0.00%
Effective income tax rate reconciliation, change in valuation allowance (in hundredths)	32.60%	-11.80%	175.20%
Income tax (benefit) expense	312	-383	62
Effective tax rate reconciliation, other items, net (in hundredths)	4.40%	0.90%	3.50%
Effective tax rate reconciliation, increase in uncertain tax positions	12	10	8
Effective tax rate reconciliation, change in uncertain tax positions (in hundredths)	0.60%	2.90%	2.40%
Effective income tax rate reconciliation, disposition of asset			11.5
Effective income tax rate reconciliation, disposition of asset (in hundredths)			4.90%
Other Restructuring
Income Tax Rate Reconciliation [Line Items]
Income tax (benefit) expense		-10	248
Effective tax rate reconciliation, other items, net (in hundredths)		-0.80%	105.40%
Gain (loss) on sale of asset			-640
Transfer Pricing and Foreign Income Inclusions and Exchange Losses
Income Tax Rate Reconciliation [Line Items]
Effective tax rate reconciliation, increase in uncertain tax positions		36	76
Effective tax rate reconciliation, change in uncertain tax positions (in hundredths)		2.90%	32.30%
Global Health
Income Tax Rate Reconciliation [Line Items]
Effective income tax rate reconciliation, change in valuation allowance, amount		58
Effective income tax rate reconciliation, change in valuation allowance (in hundredths)		4.60%
Investment Recoveries
Income Tax Rate Reconciliation [Line Items]
Effective income tax rate reconciliation, change in valuation allowance, amount	-325	90.6	-240.5
Effective income tax rate reconciliation, change in valuation allowance (in hundredths)	-117.80%	7.20%	-102.30%
Foreign Tax Rate Differential
Income Tax Rate Reconciliation [Line Items]
Effective income tax rate reconciliation, change in valuation allowance, amount		90.6	240.5
Effective income tax rate reconciliation, change in valuation allowance (in hundredths)		7.20%	102.30%
State and Local Jurisdiction
Income Tax Rate Reconciliation [Line Items]
Effective income tax rate reconciliation, losses and credits not expected to be utilized			29.6
Effective income tax rate reconciliation, losses and credits not expected to be utilized (in hundredths)			12.60%
United Kingdom | Foreign Tax Authority
Income Tax Rate Reconciliation [Line Items]
Effective income tax rate reconciliation, change in valuation allowance, amount	235
Effective income tax rate reconciliation, change in valuation allowance (in hundredths)	85.20%
Germany | Foreign Tax Authority
Income Tax Rate Reconciliation [Line Items]
Effective income tax rate reconciliation, change in valuation allowance, amount			$77
Effective income tax rate reconciliation, change in valuation allowance (in hundredths)			32.80%

Income_Taxes_Operating_Loss_an

Income Taxes Operating Loss and Tax Credit Carryforwards (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards, foreign	$11	$6
Foreign Tax Authority
Operating Loss Carryforwards [Line Items]
Net operating loss (NOL) carryforwards	4,013	3,417
Capital loss carryforwards	39	80
Finite amount of NOL carryforwards subject to expiration	99
Internal Revenue Service (IRS)
Operating Loss Carryforwards [Line Items]
Net operating loss (NOL) carryforwards	48	73
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Net operating loss (NOL) carryforwards	655	818
Capital loss carryforwards	364	428
Tax credit carryforwards	$53	$53

Income_Taxes_Income_Tax_Holida

Income Taxes Income Tax Holiday (Details) (Holiday tax incentives in India, USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Holiday tax incentives in India
Income Tax Holiday [Line Items]
Additional year of tax holiday extension	2026
Reduction in tax expense due to tax holiday incentives	$3	$3	$3
Reduction in tax expense due to tax holiday incentives per share (in dollars per share)	$0.02	$0.02	$0.02

Income_Taxes_Income_Tax_Contin

Income Taxes Income Tax Contingency (Details) (USD $)	12 Months Ended			1 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013	28-May-15
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at Beginning of Fiscal Year	$299	$294	$340
Gross increases related to prior year tax positions	45	31	7
Gross decreases related to prior year tax positions	-11	-27	-40
Gross increases related to current year tax positions	12	10	8
Settlements	-25	-1	-18
Foreign exchange and others	-11	-8	-3
Balance at End of Fiscal Year	309	299	294
Cumulative undistributed earnings of foreign subsidiaries	2,552
Internal Revenue Service
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Total liability for uncertain tax positions	241	250
Interest liability related to uncertain tax positions	38	27	38
Income tax penalty liability related to uncertain tax positions	9	19	17
Total liability for uncertain tax positions - tax attributes component	115	95
Liability for uncertain tax positions that if recognized would affect the effective tax rate	153	161	148
Interest expense (benefit) accrued related to uncertain tax positions	11	11	7
Interest expense (benefit) accrued related to uncertain tax positions, net of tax	12	7	5
Net release (accrual) of income tax penalties accrued related to uncertain tax positions	10	2	2
Interest liability related to uncertain tax positions, net of tax	$32	$21	$28
INDIA | Subsequent Event
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Share buyback tax rate (in hundredths)				23.07%
Dividend distribution tax rate (in hundredths)				20.36%

Income_Taxes_Income_Tax_Examin

Income Taxes Income Tax Examination (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015
Settlement with Taxing Authority
Income Tax Examination [Line Items]
Reasonably possible reduction in liability for uncertain tax positions	59
United States - Federal
Income Tax Examination [Line Items]
Tax years that remain subject to examination (Fiscal Year Ending)	2008 and forward
United States - Various States
Income Tax Examination [Line Items]
Tax years that remain subject to examination (Fiscal Year Ending)	2005 and forward
Australia
Income Tax Examination [Line Items]
Tax years that remain subject to examination (Fiscal Year Ending)	2011 and forward
Canada
Income Tax Examination [Line Items]
Tax years that remain subject to examination (Fiscal Year Ending)	2008 and forward
Denmark
Income Tax Examination [Line Items]
Tax years that remain subject to examination (Fiscal Year Ending)	2010 and forward
France
Income Tax Examination [Line Items]
Tax years that remain subject to examination (Fiscal Year Ending)	2012 and forward
Germany
Income Tax Examination [Line Items]
Tax years that remain subject to examination (Fiscal Year Ending)	2006 and forward
India
Income Tax Examination [Line Items]
Tax years that remain subject to examination (Fiscal Year Ending)	2009 and forward
United Kingdom
Income Tax Examination [Line Items]
Tax years that remain subject to examination (Fiscal Year Ending)	2010 and forward

Debt_Longterm_Debt_Instruments

Debt Long-term Debt Instruments (Details)

Apr. 03, 2015

Mar. 28, 2014

Apr. 03, 2015

Mar. 28, 2014

Apr. 03, 2015

Mar. 28, 2014

Apr. 03, 2015

Apr. 03, 2015

Apr. 03, 2015

Mar. 28, 2014

Sep. 27, 2013

Apr. 03, 2015

Mar. 28, 2014

Apr. 03, 2015

Mar. 28, 2014

Apr. 03, 2015

Mar. 28, 2014

Apr. 03, 2015

Mar. 28, 2014

Apr. 03, 2015

Mar. 28, 2014

Apr. 03, 2015

Mar. 28, 2014

Apr. 03, 2015

Mar. 28, 2014

Apr. 03, 2015

Mar. 28, 2014

Apr. 03, 2015

Mar. 28, 2014

Apr. 03, 2015

Apr. 03, 2015

USD ($)

USD ($)

Commercial Paper

Commercial Paper

Guarantor Subsidiaries

Guarantor Subsidiaries

4.45% term notes, due September 2022

4.45% term notes, due September 2022

Senior unsecured and unsubordinated notes

Senior unsecured and unsubordinated notes

Senior unsecured and unsubordinated notes

Senior unsecured and unsubordinated notes

Senior unsecured and unsubordinated notes

Senior unsecured and unsubordinated notes

Senior unsecured and unsubordinated notes

Line of Credit Facility, Due December 2014

Line of Credit Facility, Due December 2014

Note payable

Note payable

Mandatorily redeemable preferred stock outstanding

Mandatorily redeemable preferred stock outstanding

Capitalized lease liabilities

Capitalized lease liabilities

Borrowings for assets acquired under long-term financing

Borrowings for assets acquired under long-term financing

Other borrowings

Other borrowings

Other borrowings

Other borrowings

Line of credit

Term notes

USD ($)

USD ($)

Line of Credit Foreign Bank

Line of Credit Foreign Bank

USD ($)

GBP (£)

4.45% term notes, due September 2022

4.45% term notes, due September 2022

4.45% term notes, due September 2022

6.50% term notes, due March 2018

6.50% term notes, due March 2018

2.50% term notes, due September 2015

2.50% term notes, due September 2015

USD ($)

USD ($)

Subsidiary

Subsidiary

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Other interest bearing debt and notes payable

Other interest bearing debt and notes payable

CSC Asset Funding I LLC

CSC Asset Funding I LLC

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Debt [Abstract]

Total debt

$2,669,000,000

$2,888,000,000

$371,000,000

£ 250,000,000

$451,000,000

$434,000,000

$917,000,000

$917,000,000

$350,000,000

$350,000,000

$371,000,000

$413,000,000

$68,000,000

$68,000,000

$61,000,000

$61,000,000

$353,000,000

$511,000,000

$95,000,000

$98,000,000

$3,000,000

$36,000,000

$3,000,000

$5,000,000

Less: short term debt and current maturities of long term debt

904,000,000

681,000,000

Total long-term debt

1,765,000,000

2,207,000,000

Debt instrument, stated interest rate (in hundredths)

4.45%

4.45%

4.45%

6.50%

6.50%

2.50%

2.50%

Debt instrument, maturity date

30-Sep-22

30-Sep-22

31-Mar-18

31-Mar-18

30-Sep-15

30-Sep-15

Amount of multi-year committed revolving credit facility

2,500,000,000

250,000,000

Debt instrument term

18 months

60 months

Commercial paper outstanding

0

0

0

31,000,000

Gross amount of computer and other equipment under capital lease

1,043,000,000

1,208,000,000

Accumulated amortization on computers and other equipment under capital lease

622,000,000

609,000,000

Long-term Debt, by Maturity [Abstract]

2016

766,000,000

2017

45,000,000

2018

993,000,000

2019

0

2020

0

Thereafter

512,000,000

Total

$2,316,000,000

Debt_Assets_Acquired_by_Debt_D

Debt Assets Acquired by Debt (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014
Borrowings for assets acquired under long-term financing | Property and equipment
Schedule of Assets Acquired By Debt [Line Items]
Purchased assets financed by borrowing from customers under outsourcing contracts	58	$88
Borrowings for assets acquired under long-term financing | Software
Schedule of Assets Acquired By Debt [Line Items]
Purchased assets financed by borrowing from customers under outsourcing contracts	97	76
Borrowings for assets acquired under long-term financing | Contract premium costs
Schedule of Assets Acquired By Debt [Line Items]
Purchased assets financed by borrowing from customers under outsourcing contracts	44	93
Borrowings for assets acquired under long-term financing | Other assets acquired
Schedule of Assets Acquired By Debt [Line Items]
Purchased assets financed by borrowing from customers under outsourcing contracts	0	$10
Outsourcing contract costs
Schedule of Assets Acquired By Debt [Line Items]
Expected maturity of debt in years	4 years
Outsourcing contract costs | Minimum
Schedule of Assets Acquired By Debt [Line Items]
Weighted average rate of interest (in hundredths)	0.00%
Outsourcing contract costs | Maximum
Schedule of Assets Acquired By Debt [Line Items]
Weighted average rate of interest (in hundredths)	5.00%

Debt_Future_Minimum_Capital_Le

Debt Future Minimum Capital Lease Payments (Details) (USD $)	Apr. 03, 2015
In Millions, unless otherwise specified
Capital Lease Obligations [Abstract]
2016	$174
2017	110
2018	59
2019	41
2020	35
Thereafter	103
Total minimum lease payments	522
Less: Amount representing interest	-169
Present value of net minimum lease payments	353
Less: Current maturities of capital lease obligations	-138
Long-term capitalized lease liabilities	$215

Pension_and_Other_Benefit_Plan2

Pension and Other Benefit Plans (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended			0 Months Ended			3 Months Ended	0 Months Ended
	Jul. 04, 2014	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013	Jul. 19, 2013	Dec. 31, 2014	Jan. 02, 2015	Jan. 02, 2015	Dec. 20, 2013	Oct. 06, 2014	Mar. 26, 2013	Dec. 31, 2012	Jul. 31, 2014	Apr. 30, 2014	Jul. 01, 2012	Sep. 28, 2012
		number_of_plans
Defined Benefit Plan Disclosure [Line Items]
Settlement gain (loss)	$1,000,000
Discount rate (in hundredths)			4.23%	4.00%										4.14%
Funded percentage (in hundredths)										74.00%
Reduction in PBO due to plan amendment															28,000,000
Increase (decrease) in PBO	2,000,000												3,000,000
Net unamortized gain (loss), net of tax		0
Number of deferred compensation plans		2
Deferred compensation plan, liability		117,000,000	129,000,000
Deferred compensation plan, expense		2,000,000	9,000,000	8,000,000
Defined contribution plan contribution		177,000,000	179,000,000	213,000,000
Shares of company common stock held in defined contribution plan assets		8,231,499
Key executives
Defined Benefit Plan Disclosure [Line Items]
Number of deferred compensation plans		1
Maximum deferral percentage		100.00%
Non-employee directors
Defined Benefit Plan Disclosure [Line Items]
Number of deferred compensation plans		1
Maximum deferral percentage			100.00%
ATD
Defined Benefit Plan Disclosure [Line Items]
Settlement gain					36,000,000
Reduction in long-term liabilities					28,000,000
Settlement gain (loss)			1,000,000	6,000,000
Non-US pension plans | SWITZERLAND
Defined Benefit Plan Disclosure [Line Items]
Gain (loss) on plan amendments						-29,000,000
Actuarial loss (gain)						26,000,000
Settlement gain						-3,000,000
Economic benefit of lump sum payments						38,000,000
Discount rate (in hundredths)			2.10%			1.20%
Funded percentage (in hundredths)						78.00%
Expected long-term rates of return on assets						3.60%
US pension plans
Defined Benefit Plan Disclosure [Line Items]
Gain (loss) on plan amendments		96,000,000	0					-430,000,000
Actuarial loss (gain)								374,000,000
Settlement gain								-56,000,000
Economic benefit of lump sum payments								98,000,000
Discount rate (in hundredths)			4.58%				4.13%	4.13%
Funded percentage (in hundredths)							87.00%	87.00%
Expected long-term rates of return on assets							7.60%
Reduction in PBO due to plan amendment							583,000,000	583,000,000
Increase (decrease) in PBO							-474,000,000	-474,000,000
UK pension plans
Defined Benefit Plan Disclosure [Line Items]
Settlement gain (loss)									443,000,000
Discount rate (in hundredths)				4.31%					4.65%
Funded percentage (in hundredths)									108.00%
Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Settlement gain (loss)				3,000,000
Contractual termination benefits		3,000,000	17,000,000	20,000,000
Unamortized pension costs		7,000,000	-265,000,000	-14,000,000
Net unamortized gain (loss), net of tax		2,000,000	0	15,000,000
Estimated future amortization of transitional obligation		1,000,000
Estimated future amortization of prior service credit		-9,000,000
Percent of plan assets consisting of US and UK pension plan assets		91.00%
Postretirement Health Coverage
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss (gain)										1,000,000
Discount rate (in hundredths)			4.32%							4.01%
Expected return on assets (in hundredths)										0.075
Reduction in PBO due to plan amendment										99,000,000
Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Actuarial loss (gain)		4,000,000	16,000,000
Economic benefit of lump sum payments		0	-8,000,000	0
Discount rate (in hundredths)		3.70%	4.30%
Expected long-term rates of return on assets		7.50%	5.90%	6.50%
Expected return on assets (in hundredths)		6,000,000	5,000,000	5,000,000
Unamortized pension costs		-49,000,000	1,000,000	2,000,000
Net unamortized gain (loss), net of tax		32,000,000	1,000,000	0
Estimated future amortization of prior service credit		-25,000,000
US pension plans
Defined Benefit Plan Disclosure [Line Items]
Discretionary cash contribution											80,000,000	400,000,000
Reduction in net periodic pension cost				10,000,000
Additional plan liabilities due to amendment				379,000,000
Discount rate (in hundredths)												4.00%				4.85%
US pension plans | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations		30.00%
US pension plans | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations		30.00%
US pension plans | Alternative Investments
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations		40.00%
US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Gain (loss) on plan amendments		0	0
Actuarial loss (gain)		-460,000,000	-3,000,000
Discount rate (in hundredths)		3.90%	4.60%
Expected long-term rates of return on assets		7.60%	7.20%	6.80%
Expected return on assets (in hundredths)		233,000,000	216,000,000	170,000,000
Contractual termination benefits		0	0	0
Increase (decrease) in PBO		487,000,000	0
Non-US pension plans
Defined Benefit Plan Disclosure [Line Items]
Discretionary cash contribution											20,000,000
Target asset allocations			32.00%
Non-US pension plans | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations		35.00%
Non-US pension plans | Fixed Income Securities
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations		33.00%
Non-US pension plans | Corporate Credit
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations		23.00%
Non-US pension plans | Liability Driven Investment Products
Defined Benefit Plan Disclosure [Line Items]
Target asset allocations		10.00%
Non-US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Gain (loss) on plan amendments		1,000,000	-254,000,000
Actuarial loss (gain)		-491,000,000	135,000,000
Discount rate (in hundredths)		3.00%	4.30%
Expected long-term rates of return on assets		6.50%	6.20%	5.40%
Expected return on assets (in hundredths)		181,000,000	166,000,000	122,000,000
Contractual termination benefits		3,000,000	17,000,000	20,000,000
Increase (decrease) in PBO		$25,000,000	$46,000,000
Retirees less than 65 years old | Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Assumed healthcare cost trend rate		8.80%
Assumed healthcare cost trend rate in 2024		5.00%

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)	12 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013	31-May-14	Apr. 30, 2014
Treasury Stock Transactions [Abstract]
Cash dividend per common share (in dollars per share)	$0.92	$0.80	$0.80
Dividends declared	$131,000,000	$118,000,000	$123,000,000
Dividends declared not paid	32,000,000	29,000,000	30,000,000
Common Class A
Stock Repurchase Program [Abstract]
Share repurchase program				1,500,000,000
Common Class A | Shares Repurchased From Employees Related To Stock Option Plans [Member]
Treasury Stock Transactions [Abstract]
Accepted common stock in lieu of cash in connection with exercise of stock options (in shares)	121,350	168,739	91,921
Accepted common stock in lieu of cash in connection with the tax withholdings associated with the vesting and release of common stock (in shares)	330,037	160,753	209,056
Common Stock
Stock Repurchase Program [Abstract]
Share repurchase program					$1,000,000,000

Pension_and_Other_Benefit_Plan3

Pension and Other Benefit Plans - Pension Plan, Reconciliation of Changes in PBO and Fair Value of Plan Assets (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 28, 2014	Apr. 03, 2015	Mar. 29, 2013	Jul. 31, 2014	Jul. 04, 2014
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Settlement/curtailment				($3)	($2)
Foreign currency exchange rate changes	7
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	6
Fair value of plan assets at end of year	209
US pension plans
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at end of year	3,345	2,903
US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at beginning of year	3,506	3,409
Service cost	5	4	10
Interest cost	149	147	153
Plan participants’ contributions	1	1
Amendments	0	0
Business/contract acquisitions/divestitures	-107	0
Contractual termination benefits	0	0
Settlement/curtailment	0	-487
Actuarial loss (gain)	3	460
Benefits paid	-148	-148
Foreign currency exchange rate changes	0	0
Other	0	-1
Projected benefit obligation at end of year	3,409	3,385	3,506
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	3,125	3,263
Actual return on plan assets	364	187
Employer contribution	7	8
Plan participants’ contributions	1	1
Benefits paid	-148	-148
Business/contract acquisitions/divestitures	-86	0
Contractual termination benefits	0	0
Plan settlement	0	-488
Foreign currency exchange rate changes	0	0
Other	0	0
Fair value of plan assets at end of year	3,263	2,823	3,125
Funded status at end of year	-146	-562
Non-US pension plans
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at end of year	2,824	2,802
Non-US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at beginning of year	3,012	2,873
Service cost	25	23	25
Interest cost	124	117	123
Plan participants’ contributions	6	4
Amendments	-254	1
Business/contract acquisitions/divestitures	9	-6
Contractual termination benefits	17	3
Settlement/curtailment	-46	-25
Actuarial loss (gain)	-135	491
Benefits paid	-88	-95
Foreign currency exchange rate changes	205	-384
Other	-2	4
Projected benefit obligation at end of year	2,873	3,006	3,012
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	2,550	2,824
Actual return on plan assets	129	367
Employer contribution	81	45
Plan participants’ contributions	6	4
Benefits paid	-88	-95
Business/contract acquisitions/divestitures	9	0
Contractual termination benefits	0	23
Plan settlement	-46	-25
Foreign currency exchange rate changes	183	-340
Other	0	-1
Fair value of plan assets at end of year	2,824	2,802	2,550
Funded status at end of year	($49)	($204)

Stockholders_Equity_Share_Repu

Stockholders' Equity Share Repurchases (Details) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Apr. 03, 2015		Mar. 28, 2014		Mar. 29, 2013
Equity, Class of Treasury Stock [Line Items]
Number of shares repurchased	11,715,551
Weighted average price (in dollars per share)	$62.83
Stock repurchased during period, value	$736
Common Stock | Open Market Purchases
Equity, Class of Treasury Stock [Line Items]
Number of shares repurchased	7,560,358	[1]	9,773,469	[2]	6,707,652
Weighted average price (in dollars per share)	$60.71	[1]	$51.65	[2]	$45.47
Stock repurchased during period, value	459	[1]	505	[2]	305
Common Stock | Accelerated Share Repurchase Agreement
Equity, Class of Treasury Stock [Line Items]
Number of shares repurchased	4,155,193	[3]
Weighted average price (in dollars per share)	$66.69	[3]
Stock repurchased during period, value	$277	[3]
[1]	Includes $6 million paid during the first quarter of fiscal 2015 for shares purchased during the fourth quarter of fiscal 2014 that had not yet settled as of March 28, 2014.
[2]	Includes $22 million paid during the first quarter of fiscal 2014 for shares purchased during the fourth quarter of fiscal 2013 that had not yet settled as of March 29, 2013.
[3]	Reflects initial number of shares repurchased. Final number of shares repurchased will be determined at the maturity of the ASR arrangement.

Pension_and_Other_Benefit_Plan4

Pension and Other Benefit Plans - Pension Plan, Amounts Recognized in Balance Sheet and AOCI (Details) (Pension Plans, Defined Benefit, USD $)	Apr. 03, 2015	Mar. 28, 2014
In Millions, unless otherwise specified
US pension plans
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Non-current assets	$0	$0
Current liabilities - Accrued expenses and other current liabilities	-8	-8
Non-current liabilities - Other long-term liabilities	-554	-138
Net amount recorded	-562	-146
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Net transition obligation	0	0
Prior service cost	0	2
Accumulated other comprehensive loss	0	2
Non-US pension plans
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Non-current assets	83	166
Current liabilities - Accrued expenses and other current liabilities	-4	-7
Non-current liabilities - Other long-term liabilities	-283	-208
Net amount recorded	-204	-49
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Net transition obligation	2	3
Prior service cost	-273	-279
Accumulated other comprehensive loss	($271)	($276)

Stockholders_Equity_Accelerate

Stockholders' Equity Accelerated Share Repurchase (Details) (Accelerated Share Repurchase Agreement, Common Stock, USD $)	12 Months Ended		3 Months Ended	0 Months Ended
In Millions, except Share data, unless otherwise specified	Apr. 03, 2015		Jan. 02, 2015	Nov. 08, 2015
Accelerated Share Repurchases [Line Items]
Notional ASR amount (in millions)	$427
Number of shares repurchased	4,155,193
Consideration	277
Average price per share (in USD per share)	$66.69
Second Quarter ASR Arrangement
Accelerated Share Repurchases [Line Items]
Notional ASR amount (in millions)	125	[1]
Number of shares repurchased	1,290,481	[1]	31,830
Consideration	75	[1]
Average price per share (in USD per share)	$58.12	[1]
Refund for cash prepayment on ASR			50
Fourth Quarter ASR Arrangement
Accelerated Share Repurchases [Line Items]
Notional ASR amount (in millions)	302	[2]
Number of shares repurchased	2,864,712	[2]
Consideration	202	[2]
Average price per share (in USD per share)	$70.55	[2]
Fourth Quarter ASR Arrangement | Maximum | Scenario, Forecast
Accelerated Share Repurchases [Line Items]
Refund for cash prepayment on ASR				$100
[1]	In the third quarter of fiscal 2015, the Company received an additional 31,830 shares and a refund of the $50 million prepayment in cash upon settlement of the second quarter ASR arrangement.
[2]	Consideration includes transaction costs. The final number of shares ultimately delivered and therefore the average price paid per share will be determined at maturity of the fourth quarter ASR arrangement. CSC may receive a refund of $100 million prepayment in cash or shares upon settlement of the fourth quarter ASR arrangement.

Pension_and_Other_Benefit_Plan5

Pension and Other Benefit Plans - Pension Plan, Assumptions and Other Selected Information (Details) (USD $)	Apr. 30, 2014	Mar. 28, 2014	Mar. 29, 2013	Apr. 03, 2015	Dec. 31, 2012	Sep. 28, 2012
In Millions, unless otherwise specified
Defined Benefit Plan Disclosure [Line Items]
Discount rate (in hundredths)	4.14%	4.23%	4.00%
Fair value of plan assets		$209	$6
Pension Plans, Defined Benefit
Pension Plans with Projected Benefit Obligation in Excess of Plan Assets (U.S. and Non-U.S.)
Projected benefit obligation		3,945		4,035
Accumulated benefit obligation		3,906		3,976
Fair value of plan assets		3,585		3,186
Pension Plans with Accumulated Benefit Obligation in Excess of Plan Assets (U.S. and Non-U.S.)
Projected benefit obligation		3,917		4,007
Accumulated benefit obligation		3,888		3,958
Fair value of plan assets		3,564		3,166
US pension plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate (in hundredths)					4.00%	4.85%
Fair value of plan assets		3,345		2,903
US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Discount rate (in hundredths)		4.60%		3.90%
Rates of increase in compensation levels (in hundredths)		4.30%		4.40%
Projected benefit obligation		3,409	3,506	3,385
Accumulated benefit obligation		3,394		3,372
Fair value of plan assets		3,263	3,125	2,823
Non-US pension plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		2,824		2,802
Non-US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Discount rate (in hundredths)		4.30%		3.00%
Rates of increase in compensation levels (in hundredths)		3.40%		2.80%
Projected benefit obligation		2,873	3,012	3,006
Accumulated benefit obligation		2,833		2,948
Fair value of plan assets		$2,824	$2,550	$2,802

Stockholders_Equity_Accumulate

Stockholders' Equity Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015		Mar. 28, 2014		Mar. 29, 2013
Pension and other postretirement benefit plans, net of tax:
Foreign currency translation adjustments (loss), net of tax	($255)		$186		($81)
Prior service cost, net of tax	-57		-265		-19
Amortization of transition obligation, before tax	-1		-1		-1
Pension and other postretirement benefit plans, net of tax	-42		-264		-12
Total other comprehensive income gain, before tax	-237		184		-77
Total other comprehensive income gain, tax	-33		-1		-3
Other comprehensive (loss) income, net of taxes	-270		183		-80
Accumulated Translation Adjustment
Pension and other postretirement benefit plans, net of tax:
Foreign currency translation adjustments (loss), before tax	-307		-79		-104
Foreign currency translation adjustments (loss), tax (expense) benefit	-3		-2		12
Foreign currency translation adjustments (loss), net of tax	-310		-81		-92
Accumulated Defined Benefit Plans Adjustment
Pension and other postretirement benefit plans, net of tax:
Prior service cost, before tax	94	[1]	265	[2]	27
Prior service credit, tax (expense) benefit	-37	[1]	0	[2]	-8
Prior service cost, net of tax	57	[1]	265	[2]	19
Amortization of transition obligation, before tax	1	[3]	1	[3]	1	[3]
Amortization of transition obligation, tax	0	[3]	0	[3]	0	[3]
Amortization of transition obligation, net of tax	1	[3]	1	[3]	1	[3]
Amortization of prior service (cost), before tax	-23	[3]	-5	[3]	-1	[3]
Amortization of prior service (cost), tax	7	[3]	1	[3]	1	[3]
Amortization of prior service (cost), net of tax	-16	[3]	-4	[3]	0	[3]
Foreign currency exchange (loss) gain, before tax			2		0
Foreign currency exchange (loss) gain, tax			0		-8
Foreign currency exchange (loss) gain, net of tax			2		-8
Other Pension Plans, Postretirement or Supplemental Plans, Defined Benefit
Pension and other postretirement benefit plans, net of tax:
Foreign currency translation adjustments (loss), net of tax	57		267		11
Total pension and other post-retirement benefit plans gain, before tax	72		263		27
Total pension and other post-retirement benefit plans gain, tax	-30		1		-15
Pension and other postretirement benefit plans, net of tax	42		264		12
Cash Flow Hedging
Pension and other postretirement benefit plans, net of tax:
Foreign currency translation adjustments (loss), net of tax	-2		0		0
Loss on foreign currency forward and option contracts, before tax	-2
Loss on foreign currency forward and option contracts, tax (expense) benefit	0
Loss on foreign currency forward and option contracts, net of tax	($2)
[1]	Represents the result of remeasurement of the U.S. OPEB benefit obligations (see Note 15).
[2]	Represents the result of remeasurement of the pension liability associated primarily with plans in the U.K.(see Note 15).
[3]	Represents current period reclassification out of accumulated other comprehensive loss. The reclassified amounts are included in the net periodic pension cost and net periodic post-retirement benefit cost (see Note 15).

Pension_and_Other_Benefit_Plan6

Pension and Other Benefit Plans - Pension Plan, Net Periodic Costs and Other Changes (Details) (USD $)	12 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013	Mar. 30, 2012
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Transition (asset)/obligation	($1,000,000)	($1,000,000)	($1,000,000)
Amortization of prior service (cost)	-16,000,000	-4,000,000	0
Pension Plans, Defined Benefit
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Contractual termination benefits	3,000,000	17,000,000	20,000,000
US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	4,000,000	5,000,000	10,000,000
Interest cost	147,000,000	149,000,000	153,000,000
Expected return on assets	-233,000,000	-216,000,000	-170,000,000
Amortization of transition obligation	0	0	0
Amortization of prior service costs	0	2,000,000	2,000,000
Contractual termination benefits	0	0	0
Settlement loss(gain)	59,000,000	-28,000,000	0
Recognition of actuarial loss/(gain)	450,000,000	-138,000,000	115,000,000
Net periodic pension expense/(income)		427,000,000	-226,000,000	110,000,000
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Prior service (credit)/cost	0	0	0
Transition (asset)/obligation	0	0	0
Amortization of prior service (cost)	-2,000,000	-2,000,000	-2,000,000
Foreign currency exchange rate changes	0	0	0
Total recognized in other comprehensive income	-2,000,000	-2,000,000	-2,000,000
Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Discount or settlement rates	4.50%	4.40%	4.60%
Expected long-term rates of return on assets	7.60%	7.20%	6.80%
Rates of increase in compensation levels	4.30%	4.30%	4.10%
Employer contributions:
2016	8,000,000
Benefit Payments:
2016	161,000,000
2017	164,000,000
2018	173,000,000
2019	180,000,000
2020	186,000,000
2021-2025	990,000,000
Non-US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	23,000,000	25,000,000	25,000,000
Interest cost	117,000,000	124,000,000	123,000,000
Expected return on assets	-181,000,000	-166,000,000	-122,000,000
Amortization of transition obligation	1,000,000	1,000,000	1,000,000
Amortization of prior service costs	-10,000,000	-5,000,000	-1,000,000
Contractual termination benefits	3,000,000	17,000,000	20,000,000
Settlement loss(gain)	1,000,000	0	-8,000,000
Recognition of actuarial loss/(gain)	274,000,000	-101,000,000	199,000,000
Net periodic pension expense/(income)		228,000,000	-105,000,000	237,000,000
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Prior service (credit)/cost	2,000,000	-265,000,000	-27,000,000
Transition (asset)/obligation	-1,000,000	-1,000,000	-1,000,000
Amortization of prior service (cost)	10,000,000	5,000,000	1,000,000
Foreign currency exchange rate changes	0	-2,000,000	0
Total recognized in other comprehensive income	11,000,000	-263,000,000	-27,000,000
Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Discount or settlement rates	4.20%	4.10%	4.70%
Expected long-term rates of return on assets	6.50%	6.20%	5.40%
Rates of increase in compensation levels	3.40%	3.50%	4.10%
Employer contributions:
2016	46,000,000
Benefit Payments:
2016	104,000,000
2017	111,000,000
2018	119,000,000
2019	128,000,000
2020	136,000,000
2021-2025	$835,000,000

Stockholders_Equity_Accumulate1

Stockholders' Equity Accumulated Other Comprehensive Income (Loss) - Rollforward (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$279	$108	$188
Current-period other comprehensive (loss), net of taxes	-255	186	-81
Amounts reclassified from accumulated other comprehensive loss, net of taxes	-3	-15	1
Ending balance	21	279	108
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	-6	75	167
Current-period other comprehensive (loss), net of taxes	-310	-81	-92
Amounts reclassified from accumulated other comprehensive loss, net of taxes	0	0	0
Ending balance	-316	-6	75
Cash Flow Hedging
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	0	0	0
Current-period other comprehensive (loss), net of taxes	-2	0	0
Amounts reclassified from accumulated other comprehensive loss, net of taxes	0	0	0
Ending balance	-2	0	0
Other Pension Plans, Postretirement or Supplemental Plans, Defined Benefit
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	285	33	21
Current-period other comprehensive (loss), net of taxes	57	267	11
Amounts reclassified from accumulated other comprehensive loss, net of taxes	-3	-15	1
Ending balance	$339	$285	$33

Pension_and_Other_Benefit_Plan7

Pension and Other Benefit Plans - Other Benefit Plan, Reconciliation of Changes in PBO and Fair Value of Plan Assets (Details) (USD $)	12 Months Ended			3 Months Ended
In Millions, unless otherwise specified	Mar. 28, 2014	Apr. 03, 2015	Mar. 29, 2013	Jan. 02, 2015
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Foreign currency exchange rate changes	$7
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	6
Fair value of plan assets at end of year	209
Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at beginning of year	253	221
Service cost	3	2	4
Interest cost	10	7	11
Business/contract acquisitions/divestitures	-15	0
Actuarial loss (gain)	-16	-4
Benefits paid	-11	-10
Retiree drug subsidy reimbursement	1	0
Foreign currency exchange rate changes	-1	-1
Other	-3	0
Projected benefit obligation at end of year	221	119	253
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	84	82
Actual return on plan assets	10	6
Employer contribution	6	2
Retiree drug subsidy	1	0
Business contract/acquisitions/divestitures	-8	0
Benefits paid	-11	-10
Fair value of plan assets at end of year	82	80	84
Funded status at end of year	-139	-39
US pension plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Plan amendments	0	-96		430
Actuarial loss (gain)				($374)

Pension_and_Other_Benefit_Plan8

Pension and Other Benefit Plans - Other Benefit Plan, Amounts Recognized in Balance Sheet and AOCI (Details) (Other Postretirement Benefit Plans, Defined Benefit, USD $)	Apr. 03, 2015	Mar. 28, 2014
In Millions, unless otherwise specified
Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Non-current assets	$2	$0
Current liabilities - Accrued expenses and other current liabilities	-2	-4
Non-current liabilities - Other long-term liabilities	-39	-135
Net amount recorded	-39	-139
Prior service cost	-95	-15
Accumulated other comprehensive loss	($95)	($15)

Pension_and_Other_Benefit_Plan9

Pension and Other Benefit Plans - Other Benefit Plan, Assumptions and Other Selected Information (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Apr. 30, 2014	Mar. 28, 2014	Mar. 29, 2013
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			$209	$6
Pension Plans with Projected Benefit Obligation in Excess of Plan Assets (U.S. and Non-U.S.)
Discount rate (in hundredths)		4.14%	4.23%	4.00%
Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	119		221	253
Fair value of plan assets	80		82	84
Pension Plans with Projected Benefit Obligation in Excess of Plan Assets (U.S. and Non-U.S.)
Accumulated benefit obligation	41		221
Fair value of plan assets	0		82
Discount rate (in hundredths)	3.70%		4.30%
Effect on accumulated postretirement PBO of one percentage point increase	2
Effect on accumulated postretirement PBO of one percentage point decrease	($2)

Recovered_Sheet1

Pension and Other Benefit Plans - Other Benefit Plan, Net Periodic Costs and Other Changes (Details) (USD $)	12 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Transition (asset)/obligation	($1,000,000)	($1,000,000)	($1,000,000)
Amortization of prior service cost, net of tax benefit of $7, $1, and $1 in fiscal 2015, 2014, and 2013	-16,000,000	-4,000,000	0
Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	2,000,000	3,000,000	4,000,000
Interest cost	7,000,000	10,000,000	11,000,000
Expected return on assets	-6,000,000	-5,000,000	-5,000,000
Amortization of transition obligation	0	0	0
Amortization of prior service costs	-15,000,000	-2,000,000	-2,000,000
Recognition of actuarial loss/(gain)	-5,000,000	-20,000,000	-8,000,000
Settlements loss(gain)	0	-8,000,000	0
Net periodic pension expense/(income)	-17,000,000	-22,000,000	0
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]
Prior service (credit)/cost	-96,000,000	0	0
Transition (asset)/obligation	0	0	0
Amortization of prior service cost, net of tax benefit of $7, $1, and $1 in fiscal 2015, 2014, and 2013	-15,000,000	-2,000,000	-2,000,000
Total recognized in other comprehensive income	-81,000,000	2,000,000	2,000,000
Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Discount or settlement rates	4.20%	4.10%	4.50%
Expected long-term rates of return on assets	7.50%	5.90%	6.50%
Employer contributions:
2016	2,000,000
Benefit Payments:
2016	7,000,000
2017	7,000,000
2018	7,000,000
2019	8,000,000
2020	8,000,000
2021-2025	$38,000,000

Recovered_Sheet2

Pension and Other Benefit Plans - Fair Value by Investment Category and Level Within Fair Value Hierarchy (Details) (USD $)	Apr. 03, 2015		Mar. 28, 2014		Mar. 29, 2013
In Millions, unless otherwise specified
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			$209		$6
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	548		328
Insurance contracts | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	328		0
Non-US pension plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,802		2,824
Non-US pension plans | Fixed income commingled funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	944		951
Non-US pension plans | Fixed income commingled funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Non-US pension plans | Fixed income commingled funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	944		951
Non-US pension plans | Fixed income commingled funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Non-US pension plans | Alternative Investments
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	511	[1]	486	[1]
Non-US pension plans | Alternative Investments | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3	[1]	0	[1]
Non-US pension plans | Alternative Investments | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	392	[1]	460	[1]
Non-US pension plans | Alternative Investments | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	116	[1]	26	[1]
Non-US pension plans | Hedge Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	169	[2]	177	[2]
Non-US pension plans | Hedge Funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[2]	0	[2]
Non-US pension plans | Hedge Funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[2]	0	[2]
Non-US pension plans | Hedge Funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	169	[2]	177	[2]
Non-US pension plans | Cash and Cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	34		16
Non-US pension plans | Cash and Cash equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	30		0
Non-US pension plans | Cash and Cash equivalents | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4		16
Non-US pension plans | Cash and Cash equivalents | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Non-US pension plans | Total fair value prior to unsettled trade receivables accrued income and payables accrued expenses [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,802		2,824
Non-US pension plans | Total fair value prior to unsettled trade receivables accrued income and payables accrued expenses [Member] | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	33		0
Non-US pension plans | Total fair value prior to unsettled trade receivables accrued income and payables accrued expenses [Member] | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,480		2,615
Non-US pension plans | Total fair value prior to unsettled trade receivables accrued income and payables accrued expenses [Member] | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	289		209
Non-US pension plans | Unsettled trade receivables and accrued income
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Non-US pension plans | Global/International Equity commingled funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	817		899
Non-US pension plans | Global/International Equity commingled funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Non-US pension plans | Global/International Equity commingled funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	817		899
Non-US pension plans | Global/International Equity commingled funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Non-US pension plans | Global equity mutual funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	122		81
Non-US pension plans | Global equity mutual funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Non-US pension plans | Global equity mutual funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	122		81
Non-US pension plans | Global equity mutual funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Non-US pension plans | U.S./North American Equity commingled funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	64		47
Non-US pension plans | U.S./North American Equity commingled funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Non-US pension plans | U.S./North American Equity commingled funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	64		47
Non-US pension plans | U.S./North American Equity commingled funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Non-US pension plans | Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	141		167
Non-US pension plans | Insurance contracts | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
Non-US pension plans | Insurance contracts | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	137		161
Non-US pension plans | Insurance contracts | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4		6
US pension and other postretirement benefit plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,903		3,345
US pension and other postretirement benefit plans | U.S. Domestic Stocks
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	149		256
US pension and other postretirement benefit plans | U.S. Domestic Stocks | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	149		256
US pension and other postretirement benefit plans | U.S. Domestic Stocks | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | U.S. Domestic Stocks | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | Global/International Stocks
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	23		38
US pension and other postretirement benefit plans | Global/International Stocks | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	23		38
US pension and other postretirement benefit plans | Global/International Stocks | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | Global/International Stocks | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | Domestic Equity commingled funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	455		582
US pension and other postretirement benefit plans | Domestic Equity commingled funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	4		5
US pension and other postretirement benefit plans | Domestic Equity commingled funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	451		577
US pension and other postretirement benefit plans | Domestic Equity commingled funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | Global Equity commingled funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	154		312
US pension and other postretirement benefit plans | Global Equity commingled funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | Global Equity commingled funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	154		312
US pension and other postretirement benefit plans | Global Equity commingled funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | Fixed income mutual funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	102
US pension and other postretirement benefit plans | Fixed income mutual funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	102
US pension and other postretirement benefit plans | Fixed income mutual funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
US pension and other postretirement benefit plans | Fixed income mutual funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
US pension and other postretirement benefit plans | Fixed income commingled funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	498		774
US pension and other postretirement benefit plans | Fixed income commingled funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3		3
US pension and other postretirement benefit plans | Fixed income commingled funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	495		771
US pension and other postretirement benefit plans | Fixed income commingled funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | Mortgage and asset backed securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	52		89
US pension and other postretirement benefit plans | Mortgage and asset backed securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | Mortgage and asset backed securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	52		89
US pension and other postretirement benefit plans | Mortgage and asset backed securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | Corporate
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	41		54
US pension and other postretirement benefit plans | Corporate | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | Corporate | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	41		54
US pension and other postretirement benefit plans | Corporate | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | U.S. Treasuries
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	23		57
US pension and other postretirement benefit plans | U.S. Treasuries | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | U.S. Treasuries | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	23		57
US pension and other postretirement benefit plans | U.S. Treasuries | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | Non U.S. Government
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2		2
US pension and other postretirement benefit plans | Non U.S. Government | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | Non U.S. Government | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2		2
US pension and other postretirement benefit plans | Non U.S. Government | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | U.S. Government Agencies
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1		3
US pension and other postretirement benefit plans | U.S. Government Agencies | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | U.S. Government Agencies | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1		3
US pension and other postretirement benefit plans | U.S. Government Agencies | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | Alternative Investments
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	833	[3]	823	[3]
US pension and other postretirement benefit plans | Alternative Investments | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	305	[3]	324	[3]
US pension and other postretirement benefit plans | Alternative Investments | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	528	[3]	499	[3]
US pension and other postretirement benefit plans | Alternative Investments | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[3]	0	[3]
US pension and other postretirement benefit plans | Hedge Funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	548	[4]	328	[4]
US pension and other postretirement benefit plans | Hedge Funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[4]	0	[4]
US pension and other postretirement benefit plans | Hedge Funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[4]	0	[4]
US pension and other postretirement benefit plans | Hedge Funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	548	[4]	328	[4]
US pension and other postretirement benefit plans | Cash and Cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	30		54
US pension and other postretirement benefit plans | Cash and Cash equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1		0
US pension and other postretirement benefit plans | Cash and Cash equivalents | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	29		54
US pension and other postretirement benefit plans | Cash and Cash equivalents | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0		0
US pension and other postretirement benefit plans | Total fair value prior to unsettled trade receivables accrued income and payables accrued expenses [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,911		3,372
US pension and other postretirement benefit plans | Total fair value prior to unsettled trade receivables accrued income and payables accrued expenses [Member] | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	587		626
US pension and other postretirement benefit plans | Total fair value prior to unsettled trade receivables accrued income and payables accrued expenses [Member] | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,776		2,418
US pension and other postretirement benefit plans | Total fair value prior to unsettled trade receivables accrued income and payables accrued expenses [Member] | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	548		328
US pension and other postretirement benefit plans | Unsettled trade receivables and accrued income
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	21		28
US pension and other postretirement benefit plans | Unsettled trade payables and accrued expenses
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	-29		-55
Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	80		82		84
US pension plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,903		3,345
US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,823		3,263		3,125
US pension plans | Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	80		82
Non-US pension plans
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,802		2,824
Non-US pension plans | Insurance contracts | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	289		209
Non-US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2,802		2,824		2,550
Non-US pension plans | Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$0		$0
[1]	Represents real estate, and other commingled funds consisting mainly of equities, bonds, or commodities.
[2]	Represents investments in diversified fund of hedge funds.
[3]	Represents institutional funds consisting mainly of equities, bonds, or commodities.
[4]	Represents investments in diversified fund of hedge funds in which the CSC pension plans are the sole investor.

Recovered_Sheet3

Pension and Other Benefit Plans - Reconciliation of Assets Valued Using Significant Unobservable Inputs (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 28, 2014	Apr. 03, 2015
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Fair value of plan assets at beginning of year	$6
Purchases, sales, and settlements	164
Transfers in and / or out of Level 3	32
Foreign currency exchange rate changes	7
Fair value of plan assets at end of year	209
Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Fair value of plan assets at beginning of year		328
Actual return on plan assets held at the reporting date		20
Purchases, sales, and settlements		200
Fair value of plan assets at end of year		548
Insurance contracts | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Fair value of plan assets at beginning of year		0
Actual return on plan assets held at the reporting date		-2
Purchases, sales, and settlements		330
Fair value of plan assets at end of year		328
Non-US pension plans
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Fair value of plan assets at end of year	2,824	2,802
Non-US pension plans | Insurance contracts | Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Fair value of plan assets at beginning of year		209
Actual return on plan assets held at the reporting date		18
Purchases, sales, and settlements		-13
Transfers in and / or out of Level 3		105
Foreign currency exchange rate changes		-30
Fair value of plan assets at end of year		$289

Recovered_Sheet4

Pension and Other Benefit Plans - Asset Allocations (Details)	Apr. 03, 2015	Mar. 28, 2014
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%
Equity Securities | Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	55.00%	59.00%
Equity Securities | US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	27.00%	35.00%
Equity Securities | Non-US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	36.00%	36.00%
Debt Securities | Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	39.00%	38.00%
Debt Securities | US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	25.00%	29.00%
Debt Securities | Non-US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	34.00%	34.00%
Alternative Investments | US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	47.00%	34.00%
Alternative Investments | Non-US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	24.00%	24.00%
Cash and Other | Other Postretirement Benefit Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	6.00%	3.00%
Cash and Other | US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	1.00%	2.00%
Cash and Other | Non-US pension plans | Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Actual Plan Asset Allocations	6.00%	6.00%

Stock_Incentive_Plans_Narrativ

Stock Incentive Plans - Narrative (Details) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
	number_of_plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of incentive plans within the employee or nonemployee plan	2
Number of common shares available for grant at period end	15,959,036
Risk free interest rate, minimum	1.54%
Risk free interest rate, maximum	2.35%
Expected volatility rate, minimum	30.00%
Expected volatility rate, maximum	34.00%
Total grant date fair value of stock options vested during the period	$9	$14	$20
Cash received from stock awards exercised during the period	196	214	55
Total unrecognized compensation expense related to unvested awards, net of expected forfeitures	28
Weighted average period over which cost is expected to be recognized (in years)	1 year 8 months 9 days
Service-based RSU's
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period - minimum (in years)	10 years
Vesting percent	10.00%
Minimum service period	10 years
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair value (in USD per share)	$18.32	$13.34	$7.37
Tax benefit from stock incentive plans	18	8	3
Award vesting rights, percentage	33.33%
Award vesting rights, number of anniversaries	3
Term of options	10 years
Stock Options and RSU's
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax benefit realized from exercise of stock options	51	26	9
Other stock based incentives | Service-based RSU's
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of anniversaries following the executive's termination that the shares are redeemable	10
Performance-based Restricted Stock Units (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense		21
Vesting period - minimum (in years)	3 years
Performance-based Restricted Stock Units (PSUs) | Contingent Accelerated Vesting
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	25.00%
Total Restricted Stock Awards And Other Stock Based Incentives
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation expense related to unvested awards, net of expected forfeitures	78
Weighted average period over which cost is expected to be recognized (in years)	1 year 10 months 10 days
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	-5	13
Issue price of award (in dollars per share)	$0
Fiscal 2015 Option | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	12
Fiscal 2013 and Thereafter | Service-based RSU's
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Age covenant	62
Vesting percent	50.00%
Age covenant, with five years of service	55
Minimum service period	5 years
Prior to Fiscal Year 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Minimum service period			10 years
Prior to Fiscal Year 2013 | Service-based RSU's
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Age covenant			65
Age covenant, with ten years of service			55
Minimum | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period - minimum (in years)	3 years
Maximum | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period - minimum (in years)	5 years
SMI Employees | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	8	6
Nonemployee director incentives
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of incentive plans within the employee or nonemployee plan	2
Number of common shares available for grant at period end	175,300
Workforce reductions | Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	($25)

Stock_Incentive_Plans_Schedule

Stock Incentive Plans - Schedule of Stock-Based Compensation (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	$68	$73	$49
Share-based compensation, net of tax	43	46	31
Cost of services
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	19	25	22
Selling, general and administrative
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based compensation	$49	$48	$27

Stock_Incentive_Plans_Schedule1

Stock Incentive Plans - Schedule of Assumptions Used to Calculate Share-Based Compensation Expense (Details) (Stock Options)	12 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	2.07%	1.32%	1.15%
Expected volatility	33.00%	34.00%	36.00%
Expected term (in years)	6 years 2 months 19 days	6 years 5 months 23 days	6 years 7 months 2 days
Dividend yield	1.50%	1.71%	2.86%

Stock_Incentive_Plans_Schedule2

Stock Incentive Plans - Schedule of Options (Details) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013	Mar. 30, 2012
Number of Option Shares
Canceled/Forfeited (in shares)		-9,000,000
Stock Options
Number of Option Shares
Outstanding beginning of period (in shares)	9,829,611	15,140,567	17,733,562
Granted (in shares)	1,331,862	2,199,369	3,707,172
Exercised (in shares)	-4,476,715	-5,015,849	-1,497,686
Canceled/Forfeited (in shares)	-1,057,332	-1,247,511	-1,113,422
Expired (in shares)	-71,117	-1,246,965	-3,689,059
Outstanding end of period (in shares)	5,556,309	9,829,611	15,140,567	17,733,562
Weighted Average Exercise Price
Weighted average exercise price -beginning of period (in dollars per share)	$43.30	$43.23	$46.13
Weighted average exercise price - granted (in dollars per share)	$60.89	$45.20	$27.46
Weighted average exercise price - exercised (in dollars per share)	$45.19	$44.10	$39.27
Weighted average exercise price - cancelled/forfeited (in dollars per share)	$42.67	$33.89	$35.36
Weighted average exercise price - expired (in dollars per share)	$45.53	$52.05	$45.28
Weighted average exercise price - end of period (in dollars per share)	$46.08	$43.30	$43.23	$46.13
Additional Disclosures
Weighted average remaining contractual life (in years)	5 years 11 months 5 days	5 years 8 months 23 days	5 years 5 months 12 days	5 years 29 days
Aggregate intrinsic value	$107	$167	$113	$1
Total intrinsic value of options exercised during the period	82	53	10
Vested and Expected to Vest
Vested and expected to vest in the future as of period end (in shares)	5,436,550
Exercisable as of period end (in shares)	3,318,051
Weighted average exercise price vested and expected to vest as of period end (in dollars per share)	$45.84
Weighted average exercise price exercisable as of period end (in dollars per share)	$43.19
Weighted average remaining contractual life vested and expected to vest in the future as of period end (in years)	5 years 10 months 13 days
Weighted average remaining contractual life exercisable as of period end (in years)	4 years 2 months 12 days
Aggregate intrinsic value vested and expected to vest in the future as of period end	106
Aggregate intrinsic value exercisable as of period end	$74

Stock_Incentive_Plans_Schedule3

Stock Incentive Plans - Schedule of share based compensation shares authorized under stock option plans by exercise price range table (Details) (USD $)	12 Months Ended
	Apr. 03, 2015	Mar. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options outstanding (in shares)	5,556,309
Number of exercisable options (in shares)	3,318,051
$23.06 - $44.65
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of option exercise price, minimum		$23.06
Range of option exercise price, maximum		$44.65
Number of options outstanding (in shares)	2,706,562
Weighted average exercise price (in dollars per share)	$36.39
Weighted average remaining contractual life (in years)	6 years 7 months 21 days
Number of exercisable options (in shares)	1,675,961
Weighted average exercise price of exercisable options (in dollars per share)	$34.65
$44.89 - $60.90
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of option exercise price, minimum		$44.89
Range of option exercise price, maximum		$60.90
Number of options outstanding (in shares)	2,756,837
Weighted average exercise price (in dollars per share)	$55.03
Weighted average remaining contractual life (in years)	5 years 1 month 24 days
Number of exercisable options (in shares)	1,633,753
Weighted average exercise price of exercisable options (in dollars per share)	$51.85
$61.93 - $63.06
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of option exercise price, minimum		$61.93
Range of option exercise price, maximum		$63.06
Number of options outstanding (in shares)	92,910
Weighted average exercise price (in dollars per share)	$62.62
Weighted average remaining contractual life (in years)	8 years 6 months 29 days
Number of exercisable options (in shares)	8,337
Weighted average exercise price of exercisable options (in dollars per share)	$62.36

Stock_Incentive_Plans_Schedule4

Stock Incentive Plans - Schedule of RSUs (Details) (USD $)	12 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Nonemployee director incentives
Number of Shares
Equity instruments other than options nonvested - beginning balance (in shares)	184,146	188,445	196,361
Equity instruments other than options nonvested - granted (in shares)	22,100	25,000	42,800
Equity instruments other than options nonvested - released/redeemed (in shares)	-62,260	-29,299	-50,716
Equity instruments other than options nonvested - canceled/forfeited (in shares)	0	0	0
Equity instruments other than options nonvested - ending balance (in shares)	143,986	184,146	188,445
Weighted Average Fair Value
Weighted average fair value other than options - beginning balance (in dollars per share)	$42.07	$39.85	$42.81
Weighted average fair value other than options - granted (in dollars per share)	$59.63	$51.55	$30.30
Weighted average fair value other than options - released/redeemed (in dollars per share)	$44.10	$35.81	$43.30
Weighted average fair value other than options - canceled/forfeited (in dollars per share)	$0	$0	$0
Weighted average fair value other than options - ending balance (in dollars per share)	$43.88	$42.07	$39.85
Other stock based incentives
Number of Shares
Equity instruments other than options nonvested - beginning balance (in shares)	3,187,741	2,263,272	1,740,925
Equity instruments other than options nonvested - granted (in shares)	1,000,150	2,018,416	1,724,639
Equity instruments other than options nonvested - released/redeemed (in shares)	-829,861	-464,293	-423,321
Equity instruments other than options nonvested - canceled/forfeited (in shares)	-778,355	-629,654	-778,971
Equity instruments other than options nonvested - ending balance (in shares)	2,579,675	3,187,741	2,263,272
Weighted Average Fair Value
Weighted average fair value other than options - beginning balance (in dollars per share)	$41.34	$31.53	$40.29
Weighted average fair value other than options - granted (in dollars per share)	$60.91	$49.05	$26.12
Weighted average fair value other than options - released/redeemed (in dollars per share)	$40.81	$33.06	$33.17
Weighted average fair value other than options - canceled/forfeited (in dollars per share)	$42.62	$38.11	$38.27
Weighted average fair value other than options - ending balance (in dollars per share)	$48.70	$41.34	$31.53

Cash_Flows_Details

Cash Flows (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Cash payments for interest and income taxes [Abstract]
Interest	$144	$140	$186
Taxes on income, net of refunds	146	122	214
Noncash Investing Activities [Abstract]
Capital expenditures in accounts payable and accrued expenses	39	45	32
Capital expenditures through capital lease obligations	24	149	181
Assets acquired under long-term financing	64	49	26
Common share dividends declared but not yet paid	32	29	30
Common Class A | Accrued Liabilities
Noncash Investing Activities [Abstract]
Stock repurchased during period, value		$6	$22

Other_Income_Expense_Net_Detai

Other (Income) Expense, Net (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Other (Income) Expense [Abstract]
Foreign currency loss	$11	$15	$17
Other losses (gains)	1	3	-42
Total	12	18	-25
Cost of Company's Hedging Program	($6)	($2)	$5

Segment_and_Geographic_Informa2

Segment and Geographic Information (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015		Mar. 28, 2014		Mar. 29, 2013
Segment Reporting Information [Line Items]
Revenues	$12,173		$12,998		$14,195
Operating income (loss)	1,088	[1]	1,416	[1]	961	[1]
Depreciation and amortization	977		1,018		1,070
Reconciliation of Consolidated Operating Income to Income Before Taxes [Abstract]
Operating income (loss)	1,088	[1]	1,416	[1]	961	[1]
Corporate G&A	-242		-263		-293
Pension Expense, Fair Value Adjustment	-782		259		-297
SEC Settlement related charges and other	-200	[2]	0	[2]	0	[2]
Interest expense	-148		-147		-183
Interest income	20		16		22
Other income (expense), net	-12		-18		25
(Loss) income from continuing operations, before taxes	-276		1,263		235
Increase in operating income from change in accounting policy	263		94		83
GBS Segment
Segment Reporting Information [Line Items]
Revenues	4,036		4,321		4,844
Operating income (loss)	405		574		401
Depreciation and amortization	149		152		176
Reconciliation of Consolidated Operating Income to Income Before Taxes [Abstract]
Operating income (loss)	405		574		401
GIS Segment | Segment As Reported
Segment Reporting Information [Line Items]
Revenues	4,080		4,578		4,689
Operating income (loss)	162		382		162
Depreciation and amortization	673		704		722
Reconciliation of Consolidated Operating Income to Income Before Taxes [Abstract]
Operating income (loss)	162		382		162
NPS Segment
Segment Reporting Information [Line Items]
Revenues	4,057		4,099		4,662
Operating income (loss)	591		524		511
Depreciation and amortization	137		148		158
Reconciliation of Consolidated Operating Income to Income Before Taxes [Abstract]
Operating income (loss)	591		524		511
Corporate
Segment Reporting Information [Line Items]
Revenues	0		0		0
Operating income (loss)	-70		-64		-113
Depreciation and amortization	18		14		14
Reconciliation of Consolidated Operating Income to Income Before Taxes [Abstract]
Operating income (loss)	($70)		($64)		($113)
[1]	The impact of the change in pension accounting policy was an increase in operating income of $263 million, $94 million, and $83 million for the twelve months ended April 3, 2015, March 28, 2014, and March 29, 2013, respectively.
[2]	This item primarily relates to the SEC investigation settlement (see Note 2).

Segment_and_Geographic_Informa3

Segment and Geographic Information Geographic revenue and property and equipment, net (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Segment Reporting Information [Line Items]
Revenues	$12,173	$12,998	$14,195
Property and Equipment, Net	1,583	2,031	2,184
Total Assets	10,201	11,389	11,251
Capital Expenditures	406	595	568
Percentage of revenues derived from the US federal government (in hundredths)	31.00%	30.00%	31.00%
Percentage of accounts receivable due from the US federal government (in hundredths)	30.00%	25.00%
Maximum percentage of revenues from transactions with a single commercial customer (in hundredths)	10.00%	10.00%	10.00%
United States
Segment Reporting Information [Line Items]
Revenues	7,322	7,766	8,571
Property and Equipment, Net	978	1,177	1,273
Total Assets	5,956	6,728	6,454
Capital Expenditures	225	333	290
United Kingdom
Segment Reporting Information [Line Items]
Revenues	1,721	1,699	1,729
Property and Equipment, Net	257	335	320
Total Assets	1,620	1,614	1,389
Capital Expenditures	58	89	70
Other Europe
Segment Reporting Information [Line Items]
Revenues	1,928	2,150	2,193
Property and Equipment, Net	176	253	217
Total Assets	1,189	1,473	1,487
Capital Expenditures	73	85	80
Other International
Segment Reporting Information [Line Items]
Revenues	1,202	1,383	1,702
Property and Equipment, Net	172	266	374
Total Assets	1,436	1,574	1,921
Capital Expenditures	$50	$88	$128

Restructuring_Costs_Details

Restructuring Costs (Details) (USD $)	12 Months Ended					3 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015		Mar. 28, 2014		Mar. 29, 2013	Apr. 03, 2015
Restructuring Reserve [Roll Forward]
Restructuring costs	$261		$76		$264
Restructuring liability	245		85			245
Accrued expenses and other current liabilities	244		83
Other long-term liabilities	1		2
Cost of services
Restructuring Reserve [Roll Forward]
Restructuring costs	253		70		238
Selling, general and administrative
Restructuring Reserve [Roll Forward]
Restructuring costs	8		6		26
GBS Segment
Restructuring Reserve [Roll Forward]
Restructuring costs	137		46		87
GIS Segment
Restructuring Reserve [Roll Forward]
Restructuring costs	114		28		142
NPS Segment
Restructuring Reserve [Roll Forward]
Restructuring costs	5		2		13
Corporate
Restructuring Reserve [Roll Forward]
Restructuring costs	5		0		22
Restructuring Plan Fiscal 2015 Plan
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	0
Restructuring costs	273
Costs not affecting restructuring liability	-13	[1]
Cash paid	-21
Other	-4	[2]
Restructuring liability at end of period	235					235
Restructuring Plan Fiscal 2015 Plan | Pension Benefit Augmentation
Restructuring Reserve [Roll Forward]
Restructuring costs	10
Restructuring Plan Fiscal 2015 Plan | Workforce reductions
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	0
Restructuring costs	265					246
Costs not affecting restructuring liability	-10	[1]
Cash paid	-21
Other	-4	[2]
Restructuring liability at end of period	230					230
Restructuring Plan Fiscal 2015 Plan | Facility Closing
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	0
Restructuring costs	8
Costs not affecting restructuring liability	-3	[1]
Cash paid	0
Other	0	[2]
Restructuring liability at end of period	5					5
Restructuring Plan Fiscal 2013 Plan
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	83		176
Restructuring costs	-12		74		233
Costs not affecting restructuring liability	7	[1]	-22	[1]
Cash paid	-65		-149
Other	-4	[2]	4	[2]
Restructuring liability at end of period	9		83		176	9
Restructuring Plan Fiscal 2013 Plan | Pension Benefit Augmentation
Restructuring Reserve [Roll Forward]
Restructuring costs	-7		22		21
Restructuring Plan Fiscal 2013 Plan | Workforce reductions
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	70		155
Restructuring costs	-13		63
Costs not affecting restructuring liability	7	[1]	-22	[1]
Cash paid	-57		-130
Other	-4	[2]	4	[2]
Restructuring liability at end of period	3		70			3
Restructuring Plan Fiscal 2013 Plan | Facility Closing
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	13		10
Restructuring costs	1		11
Costs not affecting restructuring liability	0	[1]	0	[1]
Cash paid	-8		-8
Other	0	[2]	0	[2]
Restructuring liability at end of period	6		13			6
Restructuring Plan Fiscal 2013 Plan | Restructuring Related Consultancy
Restructuring Reserve [Roll Forward]
Restructuring costs	17
Restructuring Plan Fiscal 2013 Plan | Other
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period			11	[3]
Restructuring costs			0	[3]
Costs not affecting restructuring liability			0	[1],[3]
Cash paid			-11	[3]
Other			0	[2],[3]
Restructuring liability at end of period			0	[3]
Restructuring Plan Fiscal 2012 Plan
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	2		14
Restructuring costs	0		2		31
Cash paid			-13
Other			-1	[4]
Restructuring liability at end of period			2		14
Restructuring Plan Fiscal 2012 Plan | Workforce reductions
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period			9
Restructuring costs			2
Cash paid			-10
Other			-1	[4]
Restructuring liability at end of period			0
Restructuring Plan Fiscal 2012 Plan | Facility Closing
Restructuring Reserve [Roll Forward]
Restructuring liability at beginning of period	2		5
Restructuring costs	0		0
Costs not affecting restructuring liability	0
Cash paid	-2		-3
Other	1	[2]	0	[4]
Restructuring liability at end of period	$1		$2			$1
[1]	Charges primarily consist of pension benefit augmentations and are recorded as a pension liability.
[2]	Foreign currency translation adjustments.
[3]	Other direct costs associated with the restructuring program.
[4]	Foreign currency translation adjustments and reclassification of $1 million to liabilities held for sale related to the small software business that CSC committed to sell in fiscal 2014 and completed in fiscal 2015 (see Note 5).

Commitments_and_Contingencies_1

Commitments and Contingencies (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013
Schedule of future minimum lease payments, operating leases [Line Items]
Lease rental expense	$209	$280	$319
Sublease income	22
Minimum purchase commitments [Abstract]
Term of contractual purchase commitments, minimum (in years)		1 year
Term of contractual purchase commitments, maximum (in years)		6 years
Fiscal 2016	331
Fiscal 2017	308
Fiscal 2018	178
Fiscal 2019	8
Fiscal 2020	8
Thereafter	7
Real Estate
Operating Leases, Future Minimum Payments Due [Abstract]
2016	134
2017	111
2018	71
2019	50
2020	33
Thereafter	25
Total future minimum lease payments	424
Equipment
Operating Leases, Future Minimum Payments Due [Abstract]
2016	26
2017	13
2018	4
2019	2
2020	0
Thereafter	0
Total future minimum lease payments	$45

Commitments_and_Contingencies_2

Commitments and Contingencies (Guarantor Obligations) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Mar. 28, 2014	Apr. 03, 2015
Guarantor Obligations [Line Items]
Fiscal 2016		$114
Fiscal 2017		2
Fiscal 2018 and thereafter		35
Total		151
Line of credit, term	1 year
Letters of credit
Guarantor Obligations [Line Items]
Fiscal 2016		47
Fiscal 2017		2
Fiscal 2018 and thereafter		32
Total		81
Surety bonds performance guarantee
Guarantor Obligations [Line Items]
Fiscal 2016		28
Fiscal 2017		0
Fiscal 2018 and thereafter		0
Total		28
Standby letters of credit
Guarantor Obligations [Line Items]
Guarantee obligations maximum exposure		42
Fiscal 2016		39
Fiscal 2017		0
Fiscal 2018 and thereafter		3
Total		$42

Commitments_and_Contengencies_

Commitments and Contengencies (Contingencies) (Details) (USD $)	0 Months Ended	1 Months Ended
In Millions, unless otherwise specified	Aug. 22, 2014	Mar. 31, 2015	Feb. 14, 2014	Sep. 27, 2013
		employee
Loss Contingencies [Line Items]
Related receivable, pending corporate insurance claim			$34	$61
Maryland Medicaid Enterprise Restructuring Project, Claim Number 2A-D | Pending Litigation
Loss Contingencies [Line Items]
Damages sought	77
Maryland Medicaid Enterprise Restructuring Project, Claim Number 2B | Pending Litigation
Loss Contingencies [Line Items]
Damages sought	65
Maryland Medicaid Enterprise Restructuring Project, Claim Number 2C | Pending Litigation
Loss Contingencies [Line Items]
Damages sought	65
Maryland Medicaid Enterprise Restructuring Project, Claim Number 2D | Pending Litigation
Loss Contingencies [Line Items]
Damages sought	3
Civil Complaint Against Eric Pulier | Pending Litigation
Loss Contingencies [Line Items]
Gain contingency, number of former employees of Commonwealth Bank of Australia Ltd		2
Gain contingency, amount sought		$98

Subsequent_Events_Details

Subsequent Events (Details) (USD $)	12 Months Ended			0 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Mar. 29, 2013	19-May-15	Apr. 27, 2015	Apr. 21, 2015
Subsequent Event [Line Items]
Dividends declared not paid	$32,000,000	$29,000,000	$30,000,000
Special dividend declared (in dollars per share)	$0.92	$0.80	$0.80
Subsequent Event
Subsequent Event [Line Items]
Dividends declared not paid				1,500,000,000
Special dividend declared (in dollars per share)				$10.50
Welkin Associates Limited | Subsequent Event
Subsequent Event [Line Items]
Consideration received					34,000,000
Gain on sale of business					14,000,000
The Royal Bank of Scotland, PLC | Subsequent Event
Subsequent Event [Line Items]
Receivables purchase facility, maximum funding						$450,000,000
Receivables purchase facility, term						1 year

SCHEDULE_II_VALUATION_AND_QUAL1

SCHEDULE II, VALUATION AND QUALIFYING ACCOUNTS (Details) (Allowance for Doubtful Accounts, USD $)	12 Months Ended
In Millions, unless otherwise specified	Apr. 03, 2015		Mar. 28, 2014		Mar. 29, 2013
Allowance for Doubtful Accounts
Movement in valuation allowances and reserves [Roll Forward]
Balance, beginning of period	$48		$48		$51
Charged to cost and expenses	2		4		16
Other	-4	[1]	-2	[1]	-1	[1]
Deductions	-5		-2		-18
Balance, end of period	$41		$48		$48
[1]	Includes balances from acquisitions and changes in foreign currency exchange rates.