CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017
Cash flows from operating activities:
Cash received from customers	$ 26,976,556	$ 25,786,802
Cash paid to employees and suppliers	(23,613,609)	(22,593,366)
Income taxes paid	(548,092)	(478,456)
Self-insured claims paid	(292,064)	(270,036)
Dividends and interest received	140,673	185,542
Other operating cash receipts	211,856	197,277
Other operating cash payments	(12,329)	(14,748)
Net cash provided by operating activities	2,862,991	2,813,015
Cash flows from investing activities:
Payment for capital expenditures	(1,098,845)	(1,063,152)
Proceeds from sale of property, plant and equipment	9,408	4,460
Payment for investments	(1,941,469)	(2,353,947)
Proceeds from sale and maturity of investments	1,752,100	2,593,592
Net cash used in investing activities	(1,278,806)	(819,047)
Cash flows from financing activities:
Payment for acquisition of common stock	(1,192,046)	(1,438,628)
Proceeds from sale of common stock	228,032	215,424
Dividends paid	(547,693)	(519,787)
Repayment of long-term debt	(42,253)	(46,019)
Other, net	6,133	27,418
Net cash used in financing activities	(1,547,827)	(1,761,592)
Net increase in cash and cash equivalents	36,358	232,376
Cash and cash equivalents at beginning of period	579,925	438,319
Cash and cash equivalents at end of period	616,283	670,695
Reconciliation of net earnings to net cash provided by operating activities:
Net earnings	1,974,187	1,525,270
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	501,098	484,307
Increase in last-in, first out (LIFO) reserve	22,926	20,720
Retirement contributions paid or payable in common stock	273,950	280,571
Deferred income taxes	47,828	36,311
Loss on disposal and impairment of property, plant and equipment	10,612	1,991
Gain on investments	(249,808)	(104,881)
Net amortization of investments	50,357	87,982
Changes in operating assets and liabilities providing (requiring) cash:
Trade receivables	21,566	67,952
Inventories	100,983	(4,632)
Prepaid expenses and other noncurrent assets	64,758	(5,410)
Accounts payable and accrued expenses	262,581	264,196
Self-insurance reserves	10,713	1,692
Federal and state income taxes	(217,775)	162,748
Other noncurrent liabilities	(10,985)	(5,802)
Total adjustments	888,804	1,287,745
Net cash provided by operating activities	$ 2,862,991	$ 2,813,015