CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS EQUITY CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Common Stock (Acquired from) Sold to Stockholders	Accumulated Other Comprehensive Earnings (Losses)	Common Stock Related To ESOP
Beginning Balance at Dec. 26, 2020	$ 15,757,218	$ 690,982	$ 4,005,969	$ 14,343,865	$ 0	$ 200,951	$ (3,484,549)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive earnings	1,387,341			1,495,093		(107,752)
Dividends per share	(220,975)			(220,975)
Contribution of shares to retirement plans	408,569	4,743	285,438		118,388
Acquisition of shares from stockholders	(340,092)				(340,092)
Sale of shares to stockholders	90,882	0	5		90,877
Change for ESOP related shares	(560,684)						(560,684)
Ending Balance at Mar. 27, 2021	16,522,259	695,725	4,291,412	15,617,983	(130,827)	93,199	(4,045,233)
Beginning Balance at Dec. 25, 2021	18,170,021	683,680	4,291,484	17,025,406	0	(5,421)	(3,825,128)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive earnings	242,895			618,026		(375,131)
Dividends per share	(252,821)			(252,821)
Contribution of shares to retirement plans	427,127	3,897	269,764		153,466
Acquisition of shares from stockholders	(537,681)				(537,681)
Sale of shares to stockholders	100,843	0	(34)		100,877
Change for ESOP related shares	(601,311)						(601,311)
Ending Balance at Mar. 26, 2022	$ 17,549,073	$ 687,577	$ 4,561,214	$ 17,390,611	$ (283,338)	$ (380,552)	$ (4,426,439)