Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares shares in Thousands	12 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Statement of Stockholders' Equity [Abstract]
Common Stock, Dividends, Per Share, Cash Paid	$ 1.01	$ 0.9125	$ 0.8675
Contribution of shares to retirement plans	8,440	8,833	7,837
Acquisition of shares from stockholders	33,770	45,952	22,500
Sale of shares to stockholders	7,335	7,361	7,686
Retirement of shares	25,596	36,975	13,476