CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Statement of Stockholders' Equity [Abstract]
Cash dividends per share (in dollars per share)	$ 1.50	$ 1.50	$ 1.50
Number of shares acquired (in shares)	843,278	0	441,494
Stock plan exercises; shares acquired (in shares)	27,555	154,437	16,777
Stock options exercised; shares issued (in shares)	63,717	284,574	109,893
Stock awards; shares issued (in shares)	61,208	42,846	15,700