Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Apr. 02, 2011
Cash flows from operating activities:
Net income	$ 487,536	$ 530,079	$ 641,875
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	56,327	55,658	50,361
Amortization	17,233	16,690	8,531
Stock-based compensation	77,862	67,418	60,258
Net gain on sale of available-for-sale securities	(2,815)	(2,515)	(3,821)
Amortization of debt discount on convertible debentures	15,880	15,545	13,921
Provision (benefit) for deferred income taxes	(44,100)	79,326	109,561
Tax benefit from stock-based compensation	8,984	9,917	4,861
Excess tax benefit from stock-based compensation	(10,156)	(11,957)	(7,406)
Others	2,779	44	5,791
Changes in assets and liabilities:
Accounts receivable, net	(14,210)	71,499	(23,699)
Inventories	3,889	60,121	(133,724)
Prepaid expenses and other current assets	5,000	(7,401)	(4,854)
Other assets	(13,932)	1,427	(841)
Accounts payable	(5,846)	(20,640)	2,833
Accrued liabilities (including restructuring activities)	(2,319)	14,198	(3,496)
Income taxes payable	88,069	(19,909)	(15,630)
Deferred income on shipments to distributors	(13,644)	(32,761)	19,631
Net cash provided by operating activities	656,537	826,739	724,152
Cash flows from investing activities:
Purchases of available-for-sale securities	(3,910,398)	(4,333,508)	(2,578,393)
Proceeds from sale and maturity of available-for-sale securities	3,514,224	3,481,501	2,052,016
Purchases of property, plant and equipment	(30,265)	(70,071)	(64,979)
Other investing activities	(85,076)	(38,819)	(34,085)
Net cash used in investing activities	(511,515)	(960,897)	(625,441)
Cash flows from financing activities:
Repurchases of common stock	(197,689)	(219,638)	(468,943)
Proceeds from issuance of common stock through various stock plans, net	107,716	108,663	170,353
Payment of dividends to stockholders	(230,469)	(200,361)	(169,072)
Proceeds from issuance of convertible debts, net of issuance costs	0	0	587,644
Purchase of call options	0	0	(112,319)
Proceeds from issuance of warrants	0	0	46,908
Proceeds from sale of interest rate swaps	0	0	30,214
Excess tax benefit from stock-based compensation	10,156	11,957	7,406
Net cash provided by (used in) financing activities	(310,286)	(299,379)	92,191
Net increase (decrease) in cash and cash equivalents	(165,264)	(433,537)	190,902
Cash and cash equivalents at beginning of period	788,822	1,222,359	1,031,457
Cash and cash equivalents at end of period	623,558	788,822	1,222,359
Supplemental disclosure of cash flow information:
Interest paid	37,301	37,301	29,827
Income taxes paid (refunded), net	$ 6,975	$ (2,447)	$ 30,561