Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Oct. 01, 2017	Sep. 30, 2018	Oct. 01, 2017
Consolidated Statements of Comprehensive Earnings (Loss) [Abstract]
Net earnings	$ 263,861	$ 265,583	$ 211,668	$ 401,905
Other comprehensive earnings (loss):
Foreign currency translation adjustments	(6,762)	13,142	(44,560)	41,954
Net gains (losses) on cash flow hedging activities, net of tax	5,323	(26,532)	23,765	(83,729)
Unrealized holding losses on available-for-sale securities, net of tax	(617)	(784)	(673)	(555)
Changes in unrecognized pension and postretirement amounts, net of tax	0	0	(26,058)	0
Reclassifications to earnings (loss), net of tax:
Net (gains) losses on cash flow hedging activities	(1,672)	4,547	5,318	(2,237)
Amortization of unrecognized pension and postretirement amounts	2,066	1,448	6,398	4,345
Total other comprehensive loss, net of tax	(1,662)	(8,179)	(35,810)	(40,222)
Comprehensive earnings	$ 262,199	$ 257,404	$ 175,858	$ 361,683