Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands	6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010
Cash flows from operating activities:
Net income	$ 194,564	$ 160,440
Adjustments to reconcile net income to net cash provided by operating activities:
Provisions for doubtful accounts on accounts receivable	1,676	1,118
Provisions on inventory	4,892	5,109
Stock-based compensation	13,763	12,314
Deferred income taxes	(3,692)	(4,014)
Depreciation	17,939	17,118
Amortization of intangibles	15,506	13,168
Change in operating assets and liabilities:
Decrease (increase) in accounts receivable	7,191	(12,852)
Increase in inventories	(36,051)	(25,169)
Decrease (increase) in other current assets	4,063	(3,188)
Increase in other assets	(1,597)	(7,800)
(Decrease) increase in accounts payable and other current liabilities	(32,652)	32,357
Increase in deferred revenue and customer advances	31,350	27,041
Increase (decrease) in other liabilities	3,027	(815)
Net cash provided by operating activities	219,979	214,827
Cash flows from investing activities:
Additions to property, plant, equipment and software capitalization	(35,272)	(21,229)
Purchase of short-term investments	(829,598)	(481,697)
Maturity of short-term investments	690,756	327,254
Net cash used in investing activities	(174,114)	(175,672)
Cash flows from financing activities:
Proceeds from debt issuances	297,131	268,538
Payments on debt	(227,010)	(143,452)
Payments of debt issuance costs	(1,218)	(1,498)
Proceeds from stock plans	42,974	19,183
Purchase of treasury shares	(153,820)	(179,823)
Excess tax benefit related to stock option plans	15,246	3,862
Proceeds from (payments for) debt swaps and other derivative contracts	1,970	(6,967)
Net cash used in financing activities	(24,727)	(40,157)
Effect of exchange rate changes on cash and cash equivalents	15,278	(29,225)
Increase (decrease) in cash and cash equivalents	36,416	(30,227)
Cash and cash equivalents at beginning of period	308,498	341,111
Cash and cash equivalents at end of period	$ 344,914	$ 310,884