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. 30, 2017	$ 11,017,149	$ 733,440	$ 3,139,647	$ 10,044,564	$ 0	$ 152,636	$ (3,053,138)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Earnings	656,877			680,271		(23,394)
Dividends per share	(168,597)			(168,597)
Contribution of shares to retirement plans	349,424	6,221	261,423		81,780
Acquisition of shares from stockholders	(432,894)				(432,894)
Sale of shares to stockholders	106,814	531	21,632		84,651
Change for ESOP related shares	(402,207)						(402,207)
Cumulative effect of net unrealized gain on equity securities reclassified to retained earnings	0			198,310		(198,310)
Ending Balance at Mar. 31, 2018	11,126,566	740,192	3,422,702	10,754,548	(266,463)	(69,068)	(3,455,345)
Beginning Balance at Dec. 30, 2017	11,017,149	733,440	3,139,647	10,044,564	0	152,636	(3,053,138)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Earnings	1,271,438
Ending Balance at Jun. 30, 2018	11,485,083	740,193	3,422,708	11,180,065	(536,886)	(70,679)	(3,250,318)
Beginning Balance at Mar. 31, 2018	11,126,566	740,192	3,422,702	10,754,548	(266,463)	(69,068)	(3,455,345)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Earnings	614,561			616,172		(1,611)
Dividends per share	(190,655)			(190,655)
Acquisition of shares from stockholders	(317,877)				(317,877)
Sale of shares to stockholders	47,461	1	6		47,454
Change for ESOP related shares	205,027						205,027
Ending Balance at Jun. 30, 2018	11,485,083	740,193	3,422,708	11,180,065	(536,886)	(70,679)	(3,250,318)
Beginning Balance at Dec. 29, 2018	11,823,342	715,445	3,458,004	10,840,654	0	(55,762)	(3,134,999)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Earnings	1,040,785			980,971		59,814
Dividends per share	(185,835)			(185,835)
Contribution of shares to retirement plans	367,951	5,605	235,017		127,329
Acquisition of shares from stockholders	(333,857)				(333,857)
Sale of shares to stockholders	113,196	621	26,019		86,556
Change for ESOP related shares	(375,184)						(375,184)
Ending Balance at Mar. 30, 2019	12,450,398	721,671	3,719,040	11,635,790	(119,972)	4,052	(3,510,183)
Beginning Balance at Dec. 29, 2018	11,823,342	715,445	3,458,004	10,840,654	0	(55,762)	(3,134,999)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Earnings	1,760,009
Ending Balance at Jun. 29, 2019	12,897,061	721,671	3,719,046	12,081,295	(336,547)	62,219	(3,350,623)
Beginning Balance at Mar. 30, 2019	12,450,398	721,671	3,719,040	11,635,790	(119,972)	4,052	(3,510,183)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive Earnings	719,224			661,057		58,167
Dividends per share	(215,552)			(215,552)
Acquisition of shares from stockholders	(256,851)				(256,851)
Sale of shares to stockholders	40,282	0	6		40,276
Change for ESOP related shares	159,560						159,560
Ending Balance at Jun. 29, 2019	$ 12,897,061	$ 721,671	$ 3,719,046	$ 12,081,295	$ (336,547)	$ 62,219	$ (3,350,623)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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