Income Taxes Income Tax Contingency (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Mar. 30, 2012	Apr. 01, 2011	Apr. 02, 2010
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at Beginning of Fiscal Year	$ 426	$ 442	$ 442
Gross increases related to prior year tax positions	27	22	47
Gross decreases related to prior year tax positions	(134)	(41)	(29)
Gross increases related to current year tax positions	29	14	13
Settlements	(115)	(15)	(36)
Curreny year acquisitions	56	0	0
Foreign exchange and others	(2)	4	5
Balance at End of Fiscal Year	287	426	442
Cumulative Undistributed Earnings Of Foreign Subsidiaries	2,023
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations	263
Potential reduction in liability for uncertain tax positions, high range	11
Internal Revenue Service [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Total liability for uncertain tax positions	257	477
Interest liability related to uncertain tax positions	31	88	85
Income tax penalty liability related to uncertain tax positions	15	29	27
Total liability for uncertain tax positions - tax attributes component	76	66
Liability for uncertain tax positions that if recognized would affect the effective tax rate	155	266	272
Interest expense (benefit) accrued related to uncertain tax positions	56	3	3
Interest expense (benefit) accrued related to uncertain tax positions, net of tax	36	2	3
Net release (accrual) of income tax penalties accrued related to uncertain tax positions	14	2	1
Interest liability related to uncertain tax positions, net of tax	23	58	56
iSoft and AppLabs [Member]
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Curreny year acquisitions	$ 21