Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 30, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 642,588	$ 542,768
Short-term investments	240,741	267,070
Accounts receivable, less allowances of $4,349 and $6,174, respectively	251,223	270,849
Inventories	161,910	156,294
Prepaid expenses and other current assets	85,018	71,600
Total current assets	1,381,480	1,308,581
Property and equipment, net	298,582	302,288
Identified intangible assets, net	337,537	367,603
Goodwill	255,005	255,005
Other assets	126,873	128,228
Total assets	2,399,477	2,361,705
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	173,614	174,213
Accrued salaries, wages and benefits	111,686	135,530
Other accrued liabilities	168,657	173,238
Total current liabilities	453,957	482,981
Pension and post-retirement benefit obligations	324,037	337,063
Income taxes payable	63,740	72,245
Other non-current liabilities	33,298	33,694
Total liabilities	875,032	925,983
Commitments and contingencies (Note 12)
Stockholders' equity:
Preferred stock, $.01 par value: 2,000 shares authorized; none outstanding
Common stock, $.01 par value: 1,300,000 shares authorized; 564,011 and 552,409 shares outstanding, respectively	5,640	5,524
Additional paid-in capital	5,620,767	5,570,478
Accumulated deficit	(3,715,705)	(3,748,938)
Accumulated other comprehensive loss	(386,257)	(391,342)
Total stockholders' equity	1,524,445	1,435,722
Total liabilities and stockholders' equity	$ 2,399,477	$ 2,361,705