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 Jan. 01, 2012	$ 1,842,216	$ 113,157	$ 164,290	$ 1,510,683	$ 54,086
Net income	69,940			69,940
Other comprehensive income (loss)	12,507				12,507
Dividends	(32,050)			(32,050)
Exercise of employee stock options and related income tax benefits	34,006	1,611	32,395
Issuance of common stock for employee benefit plans	1,323	54	1,269
Cost of Repurchased Common Shares, Repurchase Plan and Amount for Statutory Tax Withholding Obligations	2,104	82	2,022
Issuance of common stock for long-term incentive program	8,955	296	8,659
Stock compensation	5,019	0	5,019	0	0
Ending Balance at Dec. 30, 2012	1,939,812	115,036	209,610	1,548,573	66,593
Net income	167,212			167,212
Other comprehensive income (loss)	10,998				10,998
Dividends	(31,421)			(31,421)	0
Exercise of employee stock options and related income tax benefits	19,842	947	18,895
Issuance of common stock for employee benefit plans	2,732	90	2,642
Cost of Repurchased Common Shares, Repurchase Plan and Amount for Statutory Tax Withholding Obligations	127,398	3,728	123,670
Issuance of common stock for long-term incentive program	8,257	281	7,976
Stock compensation	4,453	0	4,453	0	0
Ending Balance at Dec. 29, 2013	1,994,487	112,626	119,906	1,684,364	77,591
Net income	157,778			157,778
Other comprehensive income (loss)	(52,791)				(52,791)
Dividends	(31,597)			(31,597)
Exercise of employee stock options and related income tax benefits	24,455	1,024	23,431
Issuance of common stock for employee benefit plans	2,539	61	2,478
Cost of Repurchased Common Shares, Repurchase Plan and Amount for Statutory Tax Withholding Obligations	65,529	1,448	64,081
Issuance of common stock for long-term incentive program	7,880	218	7,662
Stock compensation	4,880	0	4,880	0	0
Ending Balance at Dec. 28, 2014	$ 2,042,102	$ 112,481	$ 94,276	$ 1,810,545	$ 24,800