Segment Reporting (Summary Of The Operating Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Segment Reporting Information [Line Items]
Revenue	$ 727,830	$ 676,482	$ 2,115,420	$ 1,955,052
Cost of revenues	119,577	149,578	372,606	455,086
Operating expenses	439,015	379,208	1,250,551	1,088,748
Total costs and expenses	558,592	528,786	1,623,157	1,543,834
Operating earnings (loss)	169,238	147,696	492,263	411,218
Domestic Segment
Segment Reporting Information [Line Items]
Revenue	641,541	591,327	1,837,171	1,707,259
Cost of revenues	107,560	131,663	327,356	403,618
Operating expenses	148,478	131,787	439,345	372,668
Total costs and expenses	256,038	263,450	766,701	776,286
Operating earnings (loss)	385,503	327,877	1,070,470	930,973
Global Segment
Segment Reporting Information [Line Items]
Revenue	86,289	85,155	278,249	247,793
Cost of revenues	12,017	17,915	45,250	51,468
Operating expenses	34,078	32,794	84,685	97,616
Total costs and expenses	46,095	50,709	129,935	149,084
Operating earnings (loss)	40,194	34,446	148,314	98,709
Other
Segment Reporting Information [Line Items]
Revenue
Cost of revenues
Operating expenses	256,459	214,627	726,521	618,464
Total costs and expenses	256,459	214,627	726,521	618,464
Operating earnings (loss)	$ (256,459)	$ (214,627)	$ (726,521)	$ (618,464)