Segment Reporting (Summary Of The Operating Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 29, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Revenue	$ 795,328	$ 727,830	$ 707,561	$ 680,029	$ 710,384	$ 676,482	$ 637,358	$ 641,212	$ 2,910,748	$ 2,665,436	$ 2,203,153
Cost of revenues									514,722	608,197	441,672
Operating expenses									1,820,014	1,485,577	1,301,683
Total costs and expenses									2,334,736	2,093,774	1,743,355
Operating earnings									576,012	571,662	459,798
Domestic Segment
Segment Reporting Information [Line Items]
Revenue									2,550,115	2,341,304	1,894,454
Cost of revenues									458,540	548,813	387,466
Operating expenses									600,341	506,249	439,465
Total costs and expenses									1,058,881	1,055,062	826,931
Operating earnings									1,491,234	1,286,242	1,067,523
Global Segment
Segment Reporting Information [Line Items]
Revenue									360,633	324,132	308,699
Cost of revenues									56,182	59,384	54,206
Operating expenses									115,281	131,580	126,997
Total costs and expenses									171,463	190,964	181,203
Operating earnings									189,170	133,168	127,496
Other
Segment Reporting Information [Line Items]
Revenue
Cost of revenues
Operating expenses									1,104,392	847,748	735,221
Total costs and expenses									1,104,392	847,748	735,221
Operating earnings									$ (1,104,392)	$ (847,748)	$ (735,221)