Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock Amount [Member]	Capital In Excess of Par Value [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Dec. 30, 2018	$ 2,584,955	$ 110,597	$ 48,772	$ 2,602,067	$ (176,481)
Net income	35,412			35,412
Dividends	(7,742)			(7,742)
Exercise of employee stock options and related income tax benefits	8,610	186	8,424
Issuance of common stock for employee benefit plans	(1,386)	(19)	(1,367)	0	0
Cost of Repurchased Common Shares, Repurchase Plan and Amount for Statutory Tax Withholding Obligations	(5,293)	(57)	(5,236)
Issuance of common stock for long-term incentive program	(3,538)	(146)	(3,392)
Stock compensation	1,371	0	1,371	0	0
Ending Balance at Mar. 31, 2019	2,638,472	110,891	58,090	2,643,026	(173,535)
Other Comprehensive Income (Loss), after Reclassifications, Net of Tax	2,946				2,946
Beginning Balance at Dec. 30, 2018	2,584,955	110,597	48,772	2,602,067	(176,481)
Net income	104,499
Other comprehensive income (loss)	(4,271)
Ending Balance at Jun. 30, 2019	2,706,867	111,071	72,181	2,704,367	(180,752)
Cumulative Effect of New Accounting Pronouncement in Period of Adoption | Accounting Standards Update 2016-02 [Member]	13,289	0	0	13,289	0
Beginning Balance at Mar. 31, 2019	2,638,472	110,891	58,090	2,643,026	(173,535)
Net income	69,087			69,087
Other comprehensive income (loss)	(7,217)
Dividends	(7,746)			(7,746)
Exercise of employee stock options and related income tax benefits	7,944	167	7,777
Issuance of common stock for employee benefit plans	(1,402)	(15)	(1,387)	0	0
Cost of Repurchased Common Shares, Repurchase Plan and Amount for Statutory Tax Withholding Obligations	(764)	(7)	(757)
Issuance of common stock for long-term incentive program	(4,389)	(5)	(4,384)
Stock compensation	1,300	0	1,300	0	0
Ending Balance at Jun. 30, 2019	2,706,867	111,071	72,181	2,704,367	(180,752)
Other Comprehensive Income (Loss), after Reclassifications, Net of Tax	(7,217)				(7,217)
Beginning Balance at Dec. 29, 2019	2,813,824	111,140	90,357	2,811,973	(199,646)
Net income	33,665			33,665
Dividends	(7,779)			(7,779)
Exercise of employee stock options and related income tax benefits	1,106	21	1,085
Issuance of common stock for employee benefit plans	(1,256)	(14)	(1,242)
Cost of Repurchased Common Shares, Repurchase Plan and Amount for Statutory Tax Withholding Obligations	(6,342)	(66)	(6,276)
Issuance of common stock for long-term incentive program	(3,028)	(197)	(2,831)
Stock compensation	997	0	997	0	0
Ending Balance at Apr. 05, 2020	2,759,746	111,306	90,236	2,836,531	(278,327)
Other Comprehensive Income (Loss), after Reclassifications, Net of Tax	(78,681)				(78,681)
Beginning Balance at Dec. 29, 2019	2,813,824	111,140	90,357	2,811,973	(199,646)
Net income	170,827
Other comprehensive income (loss)	(17,026)
Ending Balance at Jul. 05, 2020	2,967,463	111,501	106,744	2,965,890	(216,672)
Cumulative Effect of New Accounting Pronouncement in Period of Adoption | Accounting Standards Update 2016-13 [Member]	(1,328)	0	0	(1,328)	0
Beginning Balance at Apr. 05, 2020	2,759,746	111,306	90,236	2,836,531	(278,327)
Net income	137,162			137,162
Other comprehensive income (loss)	61,655
Dividends	(7,803)			(7,803)
Exercise of employee stock options and related income tax benefits	8,967	175	8,792
Issuance of common stock for employee benefit plans	(1,305)	(14)	(1,291)
Cost of Repurchased Common Shares, Repurchase Plan and Amount for Statutory Tax Withholding Obligations	(327)	(4)	(323)
Issuance of common stock for long-term incentive program	(5,125)	(2)	(5,123)
Stock compensation	1,633	8	1,625	0	0
Ending Balance at Jul. 05, 2020	2,967,463	$ 111,501	$ 106,744	$ 2,965,890	(216,672)
Other Comprehensive Income (Loss), after Reclassifications, Net of Tax	$ 61,655				$ 61,655