Summary of Significant Accounting Policies (Schedule Of The Changes To Financial Statement Line Items To Correct The Cumulative Misstatement In Fiscal 2012 Consolidated Balance Sheet) (Details) (USD $) In Millions, unless otherwise specified	Mar. 28, 2014	Mar. 29, 2013		Mar. 30, 2012
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Long-term deferred revenue	$ 581	$ 584		$ 596
Long-term deferred tax liabilities	425	409	[1]	270
Accumulated deficit	(1,148)	(2,046)	[1]	(2,799)	[2]
As Reported [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Long-term deferred revenue				529
Long-term deferred tax liabilities		403	[1]	288
Accumulated deficit		(2,096)	[1]	(2,859)	[2]
Adjustment [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Long-term deferred revenue				67
Long-term deferred tax liabilities		6	[1]	(18)
Accumulated deficit		50	[1]	60	[2]
Adjustment [Member] | Change In Accounting Policy For Sales [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Accumulated deficit				(109)
Adjustment [Member] | Correction In Deferred Revenue [Member]
Quantifying Misstatement in Current Year Financial Statements [Line Items]
Long-term deferred tax liabilities		(17)
Accumulated deficit		$ 49		$ 49

[1] Adjustment includes a decrease of $17 million in long-term deferred tax liability, an increase of $3 million in accumulated other comprehensive income, and an increase of $49 million in accumulated deficit, related to the correction of the deferred revenue error.

[2] Adjustment includes a decrease of $109 million to accumulated deficit related to change in accounting policy for sales commissions, offset by an increase of $49 million related to the correction in deferred revenue. See sales commissions policy below