Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2018	Jul. 02, 2017	Jul. 01, 2018	Jul. 02, 2017
Consolidated Statements of Comprehensive Earnings (Loss) [Abstract]
Net earnings (loss)	$ 60,299	$ 67,723	$ (52,193)	$ 136,322
Other comprehensive earnings (loss):
Foreign currency translation adjustments	(50,627)	4,139	(37,798)	28,812
Net losses on cash flow hedging activities, net of tax	43,712	(33,880)	18,442	(57,197)
Unrealized holding losses on available-for-sale securities, net of tax	87	260	(56)	229
Changes in unrecognized pension and postretirement amounts, net of tax	0	0	(26,058)	0
Reclassifications to earnings (loss), net of tax:
Net losses (gains) on cash flow hedging activities	1,635	(1,410)	6,990	(6,784)
Amortization of unrecognized pension and postretirement amounts	2,512	1,449	4,332	2,897
Total other comprehensive loss, net of tax	(2,681)	(29,442)	(34,148)	(32,043)
Comprehensive earnings (loss)	$ 57,618	$ 38,281	$ (86,341)	$ 104,279