Segment Reporting (Summary Of The Operating Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Segment Reporting Information [Line Items]
Revenues	$ 637,358	$ 524,223	$ 1,278,570	$ 1,015,887
Cost of revenues	147,500	98,482	305,508	189,162
Operating expenses	353,775	317,768	709,540	625,053
Total costs and expenses	501,275	416,250	1,015,048	814,215
Operating earnings	136,083	107,973	263,522	201,672
Domestic Segment [Member]
Segment Reporting Information [Line Items]
Revenues	561,658	450,254	1,115,932	871,244
Cost of revenues	137,652	87,413	271,955	165,338
Operating expenses	120,443	106,126	240,881	211,475
Total costs and expenses	258,095	193,539	512,836	376,813
Operating earnings	303,563	256,715	603,096	494,431
Global Segment [Member]
Segment Reporting Information [Line Items]
Revenues	75,700	73,969	162,638	144,643
Cost of revenues	9,848	11,069	33,553	23,824
Operating expenses	32,071	31,671	64,822	60,770
Total costs and expenses	41,919	42,740	98,375	84,594
Operating earnings	33,781	31,229	64,263	60,049
Other Segment [Member]
Segment Reporting Information [Line Items]
Revenues
Cost of revenues
Operating expenses	201,261	179,971	403,837	352,808
Total costs and expenses	201,261	179,971	403,837	352,808
Operating earnings	$ (201,261)	$ (179,971)	$ (403,837)	$ (352,808)