Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017
Current assets:
Cash and cash equivalents	$ 599,264	$ 579,925
Short-term investments	560,992	915,579
Trade receivables	682,981	671,414
Inventories	1,848,735	1,876,519
Prepaid expenses	122,224	41,484
Total current assets	3,814,196	4,084,921
Long-term investments	6,016,438	5,517,732
Other noncurrent assets	515,265	583,149
Property, plant and equipment:
Land	1,850,718	1,621,230
Buildings and improvements	5,535,538	4,723,213
Furniture, fixtures and equipment	5,114,698	4,844,804
Leasehold improvements	1,564,243	1,741,703
Construction in progress	109,367	154,542
Property, plant and equipment	14,174,564	13,085,492
Accumulated depreciation	(5,537,947)	(5,087,788)
Net property, plant and equipment	8,636,617	7,997,704
Total assets	18,982,516	18,183,506
Current liabilities:
Accounts payable	1,864,604	1,754,706
Accrued expenses:
Contributions to retirement plans	540,760	517,493
Self-insurance reserves	145,241	137,100
Salaries and wages	132,916	124,423
Other	321,080	329,420
Current portion of long-term debt	4,954	37,873
Federal and state income taxes	0	241,299
Total current liabilities	3,009,555	3,142,314
Deferred income taxes	420,757	360,952
Self-insurance reserves	222,419	218,598
Accrued postretirement benefit cost	105,308	113,461
Long-term debt	162,711	155,201
Other noncurrent liabilities	67,102	84,361
Total liabilities	3,987,852	4,074,887
Common stock related to Employee Stock Ownership Plan (ESOP)	3,134,999	3,053,138
Stockholders’ equity:
Common stock of $1 par value. Authorized 1,000,000 shares; issued and outstanding 715,445 shares in 2018 and 733,440 shares in 2017	715,445	733,440
Additional paid-in capital	3,458,004	3,139,647
Retained earnings	10,840,654	10,044,564
Accumulated other comprehensive (losses) earnings	(55,762)	152,636
Common stock related to ESOP	(3,134,999)	(3,053,138)
Total stockholders’ equity	11,823,342	11,017,149
Noncontrolling interests	36,323	38,332
Total equity	14,994,664	14,108,619
Commitments and contingencies	0	0
Total liabilities and stockholders' equity	$ 18,982,516	$ 18,183,506