Consolidated Statements of Comprehensive Earnings - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2018	Apr. 02, 2017
Consolidated Statements of Comprehensive Earnings (Loss) [Abstract]
Net earnings (loss)	$ (112,492)	$ 68,599
Other comprehensive earnings (loss):
Foreign currency translation adjustments	12,829	24,673
Net losses on cash flow hedging activities, net of tax	(25,270)	(23,317)
Unrealized holding losses on available-for-sale securities, net of tax	(143)	(31)
Changes in unrecognized pension and postretirement amounts, net of tax	(26,058)	0
Reclassifications to earnings (loss), net of tax:
Net losses (gains) on cash flow hedging activities	5,355	(5,374)
Unrecognized pension and postretirement amounts	1,820	1,448
Total other comprehensive loss, net of tax	(31,467)	(2,601)
Comprehensive earnings (loss)	$ (143,959)	$ 65,998