CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 24, 2016	Sep. 26, 2015
Cash flows from operating activities:
Cash received from customers	$ 25,024,422	$ 24,146,330
Cash paid to employees and suppliers	(21,995,448)	(21,301,936)
Income taxes paid	(505,330)	(566,823)
Self-insured claims paid	(242,803)	(227,008)
Dividends and interest received	175,698	161,545
Other operating cash receipts	193,482	181,032
Other operating cash payments	(31,258)	(15,543)
Net cash provided by operating activities	2,618,763	2,377,597
Cash flows from investing activities:
Payment for capital expenditures	(1,110,516)	(779,036)
Proceeds from sale of property, plant and equipment	4,300	3,161
Payment for investments	(1,891,611)	(2,285,154)
Proceeds from sale and maturity of investments	1,352,848	1,497,765
Net cash used in investing activities	(1,644,979)	(1,563,264)
Cash flows from financing activities:
Payment for acquisition of common stock	(722,641)	(682,167)
Proceeds from sale of common stock	252,803	268,226
Dividends paid	(497,318)	(458,322)
Repayment of long-term debt	(40,831)	(25,522)
Other, net	(13,412)	3,457
Net cash used in financing activities	(1,021,399)	(894,328)
Net decrease in cash and cash equivalents	(47,615)	(79,995)
Cash and cash equivalents at beginning of period	352,176	407,493
Cash and cash equivalents at end of period	304,561	327,498
Reconciliation of net earnings to net cash provided by operating activities:
Net earnings	1,481,211	1,443,973
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	458,694	422,127
Increase in LIFO reserve	7,020	28,861
Retirement contributions paid or payable in common stock	278,335	282,597
Deferred income taxes	(10,889)	(37,886)
Loss on disposal and impairment of property, plant and equipment	2,756	43,564
Gain on AFS securities	(12,958)	(52,771)
Net amortization of investments	105,968	102,357
Changes in operating assets and liabilities providing (requiring) cash:
Trade receivables	90,128	(45,969)
Merchandise inventories	70,809	(33,019)
Prepaid expenses and other noncurrent assets	(18,999)	(7,645)
Accounts payable and accrued expenses	42,951	97,064
Self-insurance reserves	930	(817)
Federal and state income taxes	129,501	141,171
Other noncurrent liabilities	(6,694)	(6,010)
Total adjustments	1,137,552	933,624
Net cash provided by operating activities	$ 2,618,763	$ 2,377,597