Restatement and Adjustment of Consolidated Financial Statements - Consolidated Statement of Cash Flows (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Mar. 28, 2014	Mar. 29, 2013	Mar. 30, 2012	Apr. 01, 2011
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)	$ 968us-gaap_ProfitLoss	$ 779us-gaap_ProfitLoss	$ (602)us-gaap_ProfitLoss
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	1,018	1,070	1,139
Pension & OPEB actuarial (gain) loss	(259)	297	479
Goodwill impairment	0us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss	232us-gaap_GoodwillImpairmentLoss
Specified contract charge			0
Settlement charge	0	0	269
Share-based Compensation	73us-gaap_ShareBasedCompensation	49us-gaap_ShareBasedCompensation	36us-gaap_ShareBasedCompensation
Deferred taxes	169us-gaap_DeferredIncomeTaxExpenseBenefit	99us-gaap_DeferredIncomeTaxExpenseBenefit	(251)us-gaap_DeferredIncomeTaxExpenseBenefit
(Gain) loss on dispositions	(85)	(797)	30
Provision for losses on accounts receivable	4	18	18
Excess tax benefit from stock based compensation	(8)	(3)	(2)
Unrealized foreign currency exchange gain	(29)	(37)	(8)
Impairment losses and contract write-offs	3	9	156
Cash surrender value in excess of premiums paid	(8)	(10)	(7)
Other non-cash charges, net	55us-gaap_OtherNoncashIncomeExpense	64us-gaap_OtherNoncashIncomeExpense	51us-gaap_OtherNoncashIncomeExpense
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Decrease in receivables	168us-gaap_IncreaseDecreaseInReceivables	55us-gaap_IncreaseDecreaseInReceivables	240us-gaap_IncreaseDecreaseInReceivables
(Increase) decrease in prepaid expenses and other current assets	(40)	22	(95)
Decrease in accounts payable and accrued expenses	(549)	(766)	(158)
Increase (decrease) in income taxes payable and income tax liability	119	40	(133)
Increase (decrease) in advanced contract payments and deferred revenue	2	270	(223)
Other operating activities, net	(41)	(40)	5
Net cash provided by operating activities	1,560	1,119	1,176
Cash flows from investing activities:
Purchases of property and equipment	(420)	(395)	(569)
Payments for outsourcing contract costs	(71)	(115)	(179)
Payments for acquisitions, net of cash acquired	(190)	(34)	(374)
Proceeds from business dispositions	248	1,108	2
Software purchased and developed	(197)us-gaap_PaymentsToAcquireSoftware	(162)us-gaap_PaymentsToAcquireSoftware	(227)us-gaap_PaymentsToAcquireSoftware
Proceeds from sale of property and equipment	38	32	11
Other investing activities, net	26	22	28
Net cash (used in) provided by investing activities	(566)	456	(1,308)
Cash flows from financing activities:
Borrowings under lines of credit and short-term debt	439us-gaap_ProceedsFromLinesOfCredit	128us-gaap_ProceedsFromLinesOfCredit	140us-gaap_ProceedsFromLinesOfCredit
Repayment of borrowings under lines of credit	0us-gaap_RepaymentsOfLinesOfCredit	(169)us-gaap_RepaymentsOfLinesOfCredit	(120)us-gaap_RepaymentsOfLinesOfCredit
Borrowing on long-term debt, net of discount	0	1,077	0
Principal payments on long-term debt	(492)us-gaap_RepaymentsOfLongTermDebt	(1,238)us-gaap_RepaymentsOfLongTermDebt	(485)us-gaap_RepaymentsOfLongTermDebt
Proceeds from stock options and other common stock transactions	214	55	15
Excess tax benefit from stock based compensation	8	3	2
Repurchase of common stock and acquisition of treasury stock	(521)us-gaap_PaymentsForRepurchaseOfEquity	(283)us-gaap_PaymentsForRepurchaseOfEquity	0us-gaap_PaymentsForRepurchaseOfEquity
Dividend payments	(119)us-gaap_PaymentsOfDividends	(124)us-gaap_PaymentsOfDividends	(124)us-gaap_PaymentsOfDividends
Payment of contingent consideration	(98)	0	0
Other financing activities, net	(30)	(38)	(9)
Net Cash Provided by (Used in) Financing Activities	(599)	(589)	(581)
Effect of exchange rate changes on cash and cash equivalents	(6)	(25)	(31)
Net increase (decrease) in cash and cash equivalents	389	961	(744)
Cash and cash equivalents at beginning of year	2,054	1,093	1,837
Cash and cash equivalents at end of year	2,443	2,054	1,093
Restatement Adjustment [Member]
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Other operating activities, net				19
Pension and Intercompany Accounting Policy Change [Member] \| Restatement Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)	278	(200)	(278)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	0	0	0
Pension & OPEB actuarial (gain) loss	(259)	297	479
Goodwill impairment			0
Specified contract charge			0
Settlement charge			0
Share-based Compensation	0	0	0
Deferred taxes	94	(13)	(127)
(Gain) loss on dispositions	(12)	0	0
Provision for losses on accounts receivable	0	0	0
Excess tax benefit from stock based compensation	0	0	0
Unrealized foreign currency exchange gain	0	0	0
Impairment losses and contract write-offs	0	0	0
Cash surrender value in excess of premiums paid	0	0	0
Other non-cash charges, net	0	0	0
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Decrease in receivables	0	0	0
(Increase) decrease in prepaid expenses and other current assets	0	0	0
Decrease in accounts payable and accrued expenses	(100)	(76)	(74)
Increase (decrease) in income taxes payable and income tax liability	7	1	(2)
Increase (decrease) in advanced contract payments and deferred revenue	0	0	0
Other operating activities, net	(8)	(9)	2
Net cash provided by operating activities	0	0	0
Cash flows from investing activities:
Purchases of property and equipment	0	0	0
Payments for outsourcing contract costs	0	0	0
Payments for acquisitions, net of cash acquired	0	0	0
Proceeds from business dispositions	0	0	0
Software purchased and developed	0	0	0
Proceeds from sale of property and equipment	0	0	0
Other investing activities, net	0	0	0
Net cash (used in) provided by investing activities	0	0	0
Cash flows from financing activities:
Borrowings under lines of credit and short-term debt	0	0	0
Repayment of borrowings under lines of credit		0	0
Borrowing on long-term debt, net of discount		0
Principal payments on long-term debt	0	0	0
Proceeds from stock options and other common stock transactions	0	0	0
Excess tax benefit from stock based compensation	0	0	0
Repurchase of common stock and acquisition of treasury stock	0	0
Dividend payments	0	0	0
Payment of contingent consideration	0		0
Other financing activities, net	0	0	0
Net Cash Provided by (Used in) Financing Activities	0	0	0
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Net increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents at beginning of year	0	0	0
Cash and cash equivalents at end of year	0	0	0
Miscellaneous errors [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)			(324)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization			1,139
Pension & OPEB actuarial (gain) loss			0
Goodwill impairment			232	2,511
Specified contract charge			0
Settlement charge			269
Share-based Compensation			36
Deferred taxes			(124)
(Gain) loss on dispositions			30
Provision for losses on accounts receivable			18
Excess tax benefit from stock based compensation			(2)
Unrealized foreign currency exchange gain			(8)
Impairment losses and contract write-offs			156
Cash surrender value in excess of premiums paid			(7)
Other non-cash charges, net			51
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Decrease in receivables			240
(Increase) decrease in prepaid expenses and other current assets			(95)
Decrease in accounts payable and accrued expenses			(84)
Increase (decrease) in income taxes payable and income tax liability			(131)
Increase (decrease) in advanced contract payments and deferred revenue			(223)
Other operating activities, net			3
Net cash provided by operating activities			1,176
Cash flows from investing activities:
Purchases of property and equipment			(569)
Payments for outsourcing contract costs			(179)
Payments for acquisitions, net of cash acquired			(374)
Proceeds from business dispositions			2
Software purchased and developed			(227)
Proceeds from sale of property and equipment			11
Other investing activities, net			28
Net cash (used in) provided by investing activities			(1,308)
Cash flows from financing activities:
Borrowings under lines of credit and short-term debt			140
Repayment of borrowings under lines of credit			(120)
Principal payments on long-term debt			(485)
Proceeds from stock options and other common stock transactions			15
Excess tax benefit from stock based compensation			2
Dividend payments			(124)
Payment of contingent consideration			0
Other financing activities, net			(9)
Net Cash Provided by (Used in) Financing Activities			(581)
Effect of exchange rate changes on cash and cash equivalents			(31)
Net increase (decrease) in cash and cash equivalents			(744)
Cash and cash equivalents at beginning of year			1,837
Cash and cash equivalents at end of year			1,093	1,837
Miscellaneous errors [Member] \| Scenario, Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)	690	979	(4,225)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	1,018	1,070	1,141
Pension & OPEB actuarial (gain) loss	0	0	0
Goodwill impairment			2,745	0
Specified contract charge			1,485
Settlement charge			269
Share-based Compensation	73	49	36
Deferred taxes	75	112	(116)
(Gain) loss on dispositions	(73)	(797)	30
Provision for losses on accounts receivable	4	18	18
Excess tax benefit from stock based compensation	(8)	(3)	(2)
Unrealized foreign currency exchange gain	(29)	(37)	(8)
Impairment losses and contract write-offs	3	9	156
Cash surrender value in excess of premiums paid	(8)	(10)	(7)
Other non-cash charges, net	55	64	71
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Decrease in receivables	168	55	232
(Increase) decrease in prepaid expenses and other current assets	(40)	22	(210)
Decrease in accounts payable and accrued expenses	(449)	(690)	(67)
Increase (decrease) in income taxes payable and income tax liability	112	39	(137)
Increase (decrease) in advanced contract payments and deferred revenue	2	270	(247)
Other operating activities, net	(33)	(31)	12
Net cash provided by operating activities	1,560	1,119	1,176
Cash flows from investing activities:
Purchases of property and equipment	(420)	(395)	(569)
Payments for outsourcing contract costs	(71)	(115)	(179)
Payments for acquisitions, net of cash acquired	(190)	(34)	(374)
Proceeds from business dispositions	248	1,108	2
Software purchased and developed	(197)	(162)	(227)
Proceeds from sale of property and equipment	38	32	11
Other investing activities, net	26	22	28
Net cash (used in) provided by investing activities	(566)	456	(1,308)
Cash flows from financing activities:
Borrowings under lines of credit and short-term debt	439	128	140
Repayment of borrowings under lines of credit		(169)	(120)
Borrowing on long-term debt, net of discount		1,077
Principal payments on long-term debt	(492)	(1,238)	(485)
Proceeds from stock options and other common stock transactions	214	55	15
Excess tax benefit from stock based compensation	8	3	2
Repurchase of common stock and acquisition of treasury stock	(521)	(283)
Dividend payments	(119)	(124)	(124)
Payment of contingent consideration	(98)		0
Other financing activities, net	(30)	(38)	(9)
Net Cash Provided by (Used in) Financing Activities	(599)	(589)	(581)
Effect of exchange rate changes on cash and cash equivalents	(6)	(25)	(31)
Net increase (decrease) in cash and cash equivalents	389	961	(744)
Cash and cash equivalents at beginning of year	2,054	1,093	1,837
Cash and cash equivalents at end of year	2,443	2,054	1,093	1,837
Miscellaneous errors [Member] \| Restatement Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net income (loss)			3,901
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization			(2)
Pension & OPEB actuarial (gain) loss			0
Goodwill impairment			(2,513)	2,511
Specified contract charge			(1,485)
Deferred taxes			(8)
(Gain) loss on dispositions			0
Provision for losses on accounts receivable			0
Excess tax benefit from stock based compensation			0
Unrealized foreign currency exchange gain			0
Impairment losses and contract write-offs			0
Cash surrender value in excess of premiums paid			0
Other non-cash charges, net			(20)
Changes in assets and liabilities, net of effects of acquisitions and dispositions:
Decrease in receivables			8
(Increase) decrease in prepaid expenses and other current assets			115
Decrease in accounts payable and accrued expenses			(17)
Increase (decrease) in income taxes payable and income tax liability			6
Increase (decrease) in advanced contract payments and deferred revenue			24
Other operating activities, net			(9)
Net cash provided by operating activities			0
Cash flows from investing activities:
Purchases of property and equipment			0
Payments for outsourcing contract costs			0
Payments for acquisitions, net of cash acquired			0
Proceeds from business dispositions			0
Software purchased and developed			0
Proceeds from sale of property and equipment			0
Other investing activities, net			0
Net cash (used in) provided by investing activities			0
Cash flows from financing activities:
Borrowings under lines of credit and short-term debt			0
Repayment of borrowings under lines of credit			0
Principal payments on long-term debt			0
Proceeds from stock options and other common stock transactions			0
Excess tax benefit from stock based compensation			0
Dividend payments			0
Payment of contingent consideration			0
Other financing activities, net			0
Net Cash Provided by (Used in) Financing Activities			0
Effect of exchange rate changes on cash and cash equivalents			0
Net increase (decrease) in cash and cash equivalents			0
Cash and cash equivalents at beginning of year			0
Cash and cash equivalents at end of year			$ 0	$ 0

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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