CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 25, 2016	Jun. 27, 2015
Cash flows from operating activities:
Cash received from customers	$ 16,999,076	$ 16,321,489
Cash paid to employees and suppliers	(14,810,898)	(14,284,168)
Income taxes paid	(442,064)	(436,729)
Self-insured claims paid	(157,882)	(140,840)
Dividends and interest received	118,375	106,524
Other operating cash receipts	130,816	122,676
Other operating cash payments	(22,000)	(10,524)
Net cash provided by operating activities	1,815,423	1,678,428
Cash flows from investing activities:
Payment for capital expenditures	(730,736)	(504,936)
Proceeds from sale of property, plant and equipment	3,121	2,231
Payment for investments	(1,112,111)	(1,336,122)
Proceeds from sale and maturity of investments	674,239	675,223
Net cash used in investing activities	(1,165,487)	(1,163,604)
Cash flows from financing activities:
Payment for acquisition of common stock	(523,401)	(481,950)
Proceeds from sale of common stock	172,488	160,233
Dividends paid	(326,073)	(303,354)
Repayment of long-term debt	(20,121)	(23,262)
Other, net	(243)	3,260
Net cash used in financing activities	(697,350)	(645,073)
Net decrease in cash and cash equivalents	(47,414)	(130,249)
Cash and cash equivalents at beginning of period	352,176	407,493
Cash and cash equivalents at end of period	304,762	277,244
Reconciliation of net earnings to net cash provided by operating activities:
Net earnings	1,060,076	1,031,659
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	307,667	269,766
Increase in LIFO reserve	11,704	19,936
Retirement contributions paid or payable in common stock	202,316	202,559
Deferred income taxes	14,638	(27,966)
Loss on disposal and impairment of property, plant and equipment	2,472	19,650
Gain on AFS securities	(6,887)	(38,243)
Net amortization of investments	71,371	67,874
Changes in operating assets and liabilities providing (requiring) cash:
Trade receivables	112,297	(15,671)
Merchandise inventories	84,175	48,443
Prepaid expenses and other noncurrent assets	(6,277)	(15,311)
Accounts payable and accrued expenses	(49,528)	27,723
Self-insurance reserves	(1,014)	1,867
Federal and state income taxes	17,764	90,553
Other noncurrent liabilities	(5,351)	(4,411)
Total adjustments	755,347	646,769
Net cash provided by operating activities	$ 1,815,423	$ 1,678,428