Segment Reporting (Summary Of The Operating Information) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Jan. 02, 2016	Oct. 03, 2015	Jul. 04, 2015	Apr. 04, 2015	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Segment Reporting Information [Line Items]
Revenue	$ 1,257,819	$ 1,184,557	$ 1,215,962	$ 1,138,135	$ 1,175,294	$ 1,127,887	$ 1,125,997	$ 996,089	$ 4,796,473	$ 4,425,267	$ 3,402,703
Cost of revenues									779,116	750,781	604,377
Operating expenses									3,106,344	2,893,350	2,035,242
Total costs and expenses									3,885,460	3,644,131	2,639,619
Operating earnings									911,013	781,136	763,084
Domestic Segment [Member]
Segment Reporting Information [Line Items]
Revenue									4,245,097	3,904,454	3,021,790
Cost of revenues									676,437	651,826	542,210
Operating expenses									1,774,146	1,577,594	1,163,413
Total costs and expenses									2,450,583	2,229,420	1,705,623
Operating earnings									1,794,514	1,675,034	1,316,167
Global Segment [Member]
Segment Reporting Information [Line Items]
Revenue									551,376	520,813	380,913
Cost of revenues									102,679	98,955	62,167
Operating expenses									246,243	233,047	182,965
Total costs and expenses									348,922	332,002	245,132
Operating earnings									202,454	188,811	135,781
Other
Segment Reporting Information [Line Items]
Operating expenses									1,085,955	1,082,709	688,864
Total costs and expenses									1,085,955	1,082,709	688,864
Operating earnings									$ (1,085,955)	$ (1,082,709)	$ (688,864)