Segment Reporting (Summary Of The Operating Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Segment Reporting Information [Line Items]
Revenue	$ 707,561	$ 637,358	$ 1,387,590	$ 1,278,570
Cost of revenues	125,800	147,500	253,029	305,508
Operating expenses	415,305	353,775	811,536	709,540
Total costs and expenses	541,105	501,275	1,064,565	1,015,048
Operating earnings (loss)	166,456	136,083	323,025	263,522
Domestic Segment
Segment Reporting Information [Line Items]
Revenue	618,991	561,658	1,195,630	1,115,932
Cost of revenues	113,099	137,652	219,796	271,955
Operating expenses	143,111	120,443	290,867	240,881
Total costs and expenses	256,210	258,095	510,663	512,836
Operating earnings (loss)	362,781	303,563	684,967	603,096
Global Segment
Segment Reporting Information [Line Items]
Revenue	88,570	75,700	191,960	162,638
Cost of revenues	12,701	9,848	33,233	33,553
Operating expenses	24,977	32,071	50,607	64,822
Total costs and expenses	37,678	41,919	83,840	98,375
Operating earnings (loss)	50,892	33,781	108,120	64,263
Other
Segment Reporting Information [Line Items]
Revenue
Cost of revenues
Operating expenses	247,217	201,261	470,062	403,837
Total costs and expenses	247,217	201,261	470,062	403,837
Operating earnings (loss)	$ (247,217)	$ (201,261)	$ (470,062)	$ (403,837)