CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 25, 2021	Sep. 26, 2020	Sep. 25, 2021	Sep. 26, 2020
Statement of Stockholders' Equity [Abstract]
Cash dividends declared per share (in dollars per share)	$ 0.50	$ 0.45	$ 1.50	$ 1.35
Purchase of treasury shares, shares acquired (in shares)	10,759	60,645	103,056	251,136
Stock plan exercises; shares acquired (in shares)	144	580	71,412	617
Stock options exercised; shares issued (in shares)	20,749	2,616	164,872	4,100
Stock awards; shares issued (in shares)	494	253	9,554	8,957