Debt (Schedule Of Components Of Long-Term Debt, Interest Rates, Payment Dates) (Details) (USD $)	Mar. 29, 2013		Mar. 30, 2012
3.95% Senior Notes [Member]
Debt Instrument [Line Items]
Face value	$ 400,000,000
Fair value	412,000,000	[1]
Stated interest rate	3.95%
Effective interest rate	4.05%
2.75% Senior Notes, Due June 2017 [Member]
Debt Instrument [Line Items]
Face value	600,000,000
Fair value	620,000,000	[1]
Stated interest rate	2.75%
Effective interest rate	2.79%
2.75% Senior Notes, Due September 2015 [Member]
Debt Instrument [Line Items]
Face value	350,000,000		350,000,000
Fair value	363,000,000	[1]	363,000,000	[1]
Stated interest rate	2.75%		2.75%
Effective interest rate	2.76%		2.76%	[2]
4.20% Senior Notes [Member]
Debt Instrument [Line Items]
Face value	750,000,000		750,000,000
Fair value	799,000,000	[1]	771,000,000	[1]
Stated interest rate	4.20%		4.20%
Effective interest rate	4.25%	[2]	4.25%	[2]
Convertible Senior Notes 1.00% [Member]
Debt Instrument [Line Items]
Face value	1,000,000,000		1,000,000,000
Fair value	$ 1,291,000,000	[1]	$ 1,115,000,000	[1]
Stated interest rate	1.00%		1.00%
Effective interest rate	6.78%	[2]	6.78%	[2]

[1] The fair value of debt relies on Level 2 inputs, which is based on market prices for similar debt instruments and resulting yields. For convertible senior notes, the fair value represents that of the liability component. See Note 1 for our accounting policy of estimating the fair value of our debt.

[2] Represents the interest rate on our debt for accounting purposes while taking into account the effects of amortization of debt discount. Although the effective interest rates of the 1.00% notes were 6.78% for fiscal 2013 and 2012, we are making cash interest payments at the stated coupon rates of 1.00%.