Segment Reporting (Summary Of The Operating Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Segment Reporting Information [Line Items]
Revenue	$ 1,215,962	$ 1,125,997	$ 2,354,097	$ 2,122,086
Cost of revenues	205,556	192,322	381,149	360,982
Operating expenses	769,094	761,939	1,516,188	1,422,456
Total costs and expenses	974,650	954,261	1,897,337	1,783,438
Operating earnings (loss)	241,312	171,736	456,760	338,648
Domestic Segment
Segment Reporting Information [Line Items]
Revenue	1,072,564	994,746	2,077,529	1,865,253
Cost of revenues	177,510	168,189	326,779	310,906
Operating expenses	432,468	393,305	858,027	754,391
Total costs and expenses	609,978	561,494	1,184,806	1,065,297
Operating earnings (loss)	462,586	433,252	892,723	799,956
Global Segment
Segment Reporting Information [Line Items]
Revenue	143,398	131,251	276,568	256,833
Cost of revenues	28,046	24,133	54,370	50,076
Operating expenses	64,523	59,827	123,394	110,398
Total costs and expenses	92,569	83,960	177,764	160,474
Operating earnings (loss)	50,829	47,291	98,804	96,359
Other
Segment Reporting Information [Line Items]
Operating expenses	272,103	308,807	534,767	557,667
Total costs and expenses	272,103	308,807	534,767	557,667
Operating earnings (loss)	$ (272,103)	$ (308,807)	$ (534,767)	$ (557,667)