Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012
Current assets:
Cash and cash equivalents	$ 301,868	$ 337,400
Short-term investments	829,559	797,260
Trade receivables	540,156	519,137
Merchandise inventories	1,506,977	1,409,367
Deferred tax assets	55,761	57,834
Prepaid expenses	25,823	28,124
Total current assets	3,260,144	3,149,122
Long-term investments	5,161,927	4,235,846
Other noncurrent assets	319,818	202,636
Property, plant and equipment:
Land	716,071	688,812
Buildings and improvements	2,352,447	2,249,176
Furniture, fixtures and equipment	3,759,007	4,587,883
Leasehold improvements	1,438,871	1,385,823
Construction in progress	152,240	67,775
Property, plant and equipment	8,418,636	8,979,469
Accumulated depreciation	(3,613,884)	(4,288,753)
Net property, plant and equipment	4,804,752	4,690,716
Assets, Total	13,546,641	12,278,320
Current liabilities:
Accounts payable	1,383,134	1,306,996
Accrued expenses:
Contributions to retirement plans	448,339	430,395
Self-insurance reserves	150,860	138,998
Salaries and wages	116,116	109,091
Other	223,048	230,486
Current portion of long-term debt	37,509	5,018
Federal and state income taxes	19,916	0
Total current liabilities	2,378,922	2,220,984
Deferred tax liabilities	356,956	327,294
Self-insurance reserves	205,181	212,728
Accrued postretirement benefit cost	102,763	116,721
Long-term debt	124,645	153,454
Other noncurrent liabilities	110,378	118,321
Total liabilities	3,278,845	3,149,502
Common stock related to Employee Stock Ownership Plan (ESOP)	2,322,903	2,272,963
Stockholders’ equity:
Common stock of $1 par value. Authorized 1,000,000 shares; issued and outstanding 776,721 shares in 2013 and 776,094 shares in 2012	776,721	776,094
Additional paid-in capital	1,898,974	1,627,258
Retained earnings	7,454,448	6,640,538
Accumulated other comprehensive earnings	86,999	38,289
Common stock related to ESOP	(2,322,903)	(2,272,963)
Total stockholders’ equity	7,894,239	6,809,216
Noncontrolling interests	50,654	46,639
Total equity	10,267,796	9,128,818
Commitments and contingencies	0	0
Liabilities and stockholders' equity, total	$ 13,546,641	$ 12,278,320