Stock Plans and Stock-Based Compensation (Stock Options and Restricted Stock Grants) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012
Stock-based compensation weighted-average assumptions
Expected life (in years)	4 years 2 months 22 days	4 years 6 months
Expected volatility (as a percent)	32.70%	34.90%
Risk-free interest rate (as a percent)	0.80%	0.84%
Expected dividend yield (as a percent)	0.00%	0.00%
Weighted-average grant date fair value (in dollars per share)	$ 11.17	$ 10.94
Stock option activity, additional disclosures
Charge recorded in capital in excess of par value for excess of deferred tax assets over actual tax benefits	$ (1,362)
Restricted Stock and Performance Units, Additional Disclosure
Min PSU Shares	0
Performance Shares [Member]
Restricted stock activity, restricted stock
Granted (in shares)	163,847
Restricted Stock and Performance Units, Additional Disclosure
Max PSU Shares	327,694
Stock options [Member]
Stock option activity, shares
Options outstanding, balance at the beginning of the period (in shares)	5,860,403
Options granted (in shares)	593,499
Options exercised (in shares)	(1,729,768)
Options canceled (in shares)	(105,040)
Options outstanding, balance at the end of the period (in shares)	4,619,094
Options exercisable, balance at the end of the period (in shares)	3,022,605
Stock option activity, weighted-average exercise price
Options outstanding, balance at the beginning of the period (in dollars per share)	$ 39.11
Options granted (in dollars per share)	$ 40.54
Options exercised (in dollars per share)	$ 34.06
Options canceled (in dollars per share)	$ 45.68
Options outstanding, balance at the end of the period (in dollars per share)	$ 41.04
Options exercisable, balance at the end of the period (in dollars per share)	$ 42.52
Stock option activity, weighted-average remaining contractual life
Options outstanding, balance at the end of the period (in years)	3 years 3 months 0 days
Options exercisable, balance at the end of the period (in years)	2 years 0 months 1 day
Stock option activity, Aggregate Intrinsic Value
Options outstanding, balance at the end of the period	30,997
Options exercisable, balance at the end of the period	18,186
Unrecognized compensation expense
Number of unvested awards related to unrecognized compensation cost (in shares)	1,596,489
Unrecognized compensation cost	12,634
Estimated weighted-average amortization period for unrecognized compensation cost (in months)	3
Stock option activity, additional disclosures
Intrinsic value of options exercised	17,629	2,769
Amount of cash received from exercise of options	58,986	12,304
Actual tax benefit realized for tax deductions from option exercises	6,436
Restricted Stock [Member]
Unrecognized compensation expense
Unrecognized compensation cost	32,752
Estimated weighted-average amortization period for unrecognized compensation cost (in months)	32
Restricted stock activity, restricted stock
Balance at the beginning of the period (in shares)	934,505
Granted (in shares)	565,699
Vested (in shares)	(371,458)
Canceled (in shares)	(21,433)
Balance at the end of the period (in shares)	1,107,313
Restricted stock activity, weighted-average grant date fair value
Balance at the beginning of the period (in dollars per share)	$ 35.83
Granted (in dollars per share)	$ 40.52
Vested (in dollars per share)	$ 40.37
Canceled (in dollars per share)	$ 43.75
Balance at the end of the period (in dollars per share)	$ 36.55
Restricted Stock and Performance Units, Additional Disclosure
Actual tax benefit realized from vested restricted stock grants	5,375
Fair value of restricted stock grants that vested	$ 14,996	$ 10,297