Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net earnings	$ 529,454	$ 630,059	$ 866,978
Foreign currency translation adjustment and other (net of taxes (benefit) of $(1,288), $(645) and $4,909, respectively)	(3,408)	(30,575)	37,463
Unrealized loss on cash flow hedge (net of tax benefit of $4,137 in 2019)	(12,578)	0	0
Unrealized holding gain (loss) on available-for-sale investments (net of taxes (benefit) of $290, $132 and $(416), respectively)	878	405	(680)
Comprehensive income	$ 514,346	$ 599,889	$ 903,761