Condensed Consolidated Statements of Stockholders' Equity (Parenthetical) (Parentheticals) - $ / shares shares in Thousands	3 Months Ended
Mar. 26, 2022	Mar. 27, 2021
Statements of Stockholders' Equity (Parenthetical) [Abstract]
Dividends per share	$ 0.37	$ 0.32
Contribution of shares to retirement plans	6,208	6,786
Acquisition of shares from stockholders	7,901	5,731
Sale of shares to stockholders	1,472	1,515

Statements of Stockholders' Equity (Parenthetical) [Abstract]

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Aggregate dividends paid during the period for each share of common stock outstanding.

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Number of shares of capital stock issued (purchased by employees) in connection with an employee stock ownership plan.

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Number of shares that have been repurchased during the period and are being held in treasury.

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