CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012
Cash flows from operating activities:
Cash received from customers	$ 14,572,874	$ 13,916,345
Cash paid to employees and suppliers	(12,649,515)	(12,052,617)
Income taxes paid	(472,450)	(481,586)
Self-insured claims paid	(159,879)	(135,642)
Dividends and interest received	96,725	86,189
Other operating cash receipts	108,420	107,590
Other operating cash payments	(8,393)	(6,418)
Net cash provided by operating activities	1,487,782	1,433,861
Cash flows from investing activities:
Payment for capital expenditures	(271,755)	(308,772)
Proceeds from sale of property, plant and equipment	4,623	2,984
Payment for investments	(1,349,602)	(881,593)
Proceeds from sale and maturity of investments	550,438	349,441
Net cash used in investing activities	(1,066,296)	(837,940)
Cash flows from financing activities:
Payment for acquisition of common stock	(305,147)	(278,357)
Proceeds from sale of common stock	113,969	81,060
Dividends paid	(274,646)	(464,626)
Repayment of long-term debt	(2,578)	(1,902)
Other, net	(338)	259
Net cash used in financing activities	(468,740)	(663,566)
Net decrease in cash and cash equivalents	(47,254)	(67,645)
Cash and cash equivalents at beginning of period	337,400	366,853
Cash and cash equivalents at end of period	290,146	299,208
Reconciliation of net earnings to net cash provided by operating activities:
Net earnings	872,135	791,042
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	250,606	245,222
Increase in LIFO reserve	19,234	22,942
Retirement contributions paid or payable in common stock	173,487	155,227
Deferred income taxes	(4,302)	(29,021)
Loss on disposal and impairment of property, plant and equipment	2,825	10,018
Gain on AFS securities	(9,250)	(4,402)
Net amortization of investments	64,542	51,908
Changes in operating assets and liabilities providing (requiring) cash:
Trade receivables	2,707	36,358
Merchandise inventories	(9,915)	24,466
Prepaid expenses and other noncurrent assets	(9,061)	(33,913)
Accounts payable and accrued expenses	160,598	195,921
Self-insurance reserves	(790)	7,183
Federal and state income taxes	(24,411)	(41,086)
Other noncurrent liabilities	(623)	1,996
Total adjustments	615,647	642,819
Net cash provided by operating activities	$ 1,487,782	$ 1,433,861