Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 29, 2012	Oct. 01, 2011
Cash flows from operating activities:
Net earnings	$ 206,325	$ 265,146
Adjustments to reconcile net earnings to cash from operating activities:
Depreciation and amortization	67,518	60,111
Gain on sale of power generating facilities		(52,923)
Gain from sale of fixed assets	(6,343)	(485)
Fixed asset impairment charge		5,600
Deferred income taxes	(14,105)	(17,558)
Pay-in-kind interest and accretion on note receivable from affiliate	(8,747)	(7,802)
Income from affiliates	(21,703)	(8,850)
Other investment loss (income), net	(6,320)	3,811
Other	2,936	1,849
Changes in assets and liabilities, net of business acquired:
Receivables, net of allowance	(66,783)	(82,946)
Inventories	(119,871)	(130,019)
Other current assets	(33,759)	60,650
Current liabilities, exclusive of debt	116,341	(83,914)
Other, net	17,471	19,065
Net cash from operating activities	132,960	31,735
Cash flows from investing activities:
Purchase of short-term investments	(602,811)	(126,123)
Proceeds from the sale of short-term investments	529,144	139,941
Proceeds from the maturity of short-term investments	27,077	15,033
Investments in and advances to affiliates, net	(9,321)	(15,232)
Capital expenditures	(112,218)	(150,263)
Proceeds from the sale of fixed assets	10,599	2,303
Proceeds from the sale of power generating facilities		59,603
Notes receivable issued to affiliate		(33,037)
Principal payments received on long-term notes receivable from affiliate	1,139	212
Purchase of long-term investments	(6,629)	(3,516)
Acquisition of business, net of cash acquired	(2,825)
Other, net	742	692
Net cash from investing activities	(165,103)	(110,387)
Cash flows from financing activities:
Notes payable to banks, net	7,688	25,271
Proceeds from the issuance of long-term debt	32,682	63,378
Principal payments of long-term debt	(6,050)	(1,369)
Repurchase of common stock	(18,193)	(1,158)
Other, net	382	261
Net cash from financing activities	16,509	86,383
Effect of exchange rate change on cash	(1,371)	2,082
Net change in cash and cash equivalents	(17,005)	9,813
Cash and cash equivalents at beginning of year	71,510	41,124
Cash and cash equivalents at end of period	$ 54,505	$ 50,937