Income Taxes (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2011	Oct. 02, 2011	Jul. 03, 2011	Apr. 03, 2011	Jan. 02, 2011	Oct. 03, 2010	Jul. 04, 2010	Apr. 04, 2010	Dec. 31, 2011	Jan. 02, 2011	Jan. 03, 2010
Deferred Income Taxes [Abstract]
Accrued postretirement benefits	$ 28,525				$ 27,012				$ 28,525	$ 27,012
Other benefit obligations	112,646				118,039				112,646	118,039
Accounts receivable	28,047				33,853				28,047	33,853
State income tax loss carryforwards	34,506				27,674				34,506	27,674
U.S. Federal income tax loss carryforwards	6,301				8,120				6,301	8,120
Non-U.S. income tax loss carryforwards	14,906				10,827				14,906	10,827
Other	60,881				39,524				60,881	39,524
Deferred tax assets	285,812				265,049				285,812	265,049
Valuation allowance	(59,179)				(41,359)				(59,179)	(41,359)
Deferred tax assets, net	226,633				223,690				226,633	223,690
Property, plant and equipment	200,054				187,934				200,054	187,934
Prepaid pension cost	213,663				214,470				213,663	214,470
Unrealized gain on available-for-sale securities	53,588				47,148				53,588	47,148
Affiliate operations	0				0				0	0
Goodwill and other intangible assets	291,346				265,225				291,346	265,225
Deferred tax liabilities	758,651				714,777				758,651	714,777
Deferred income tax liabilities, net	532,018				491,087				532,018	491,087
Income Tax Reconciliation [Line Items]
U.S. Federal taxes at statutory rate									76,170	188,341	85,822
State and local taxes (benefit), net of U.S. Federal tax									4,034	26,526	(4,508)
Tax provided on non-U.S. subsidiary earnings and distributions at less than the expected U.S. Federal statutory tax rate									(6,882)	(4,327)	(1,035)
Goodwill impairments									4,173	8,066	2,972
U.S. Federal Manufacturing Deduction tax expense (benefit)									1,365	(8,419)	0
Other, net									(380)	(8,964)	(1,919)
Provision for income taxes	41,800	16,600	27,500	10,400	68,200	59,400	56,700	33,700	96,300	218,000	89,000
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Begining of Period				70,181				106,781	70,181	106,781	104,653
Additions Charged to Costs and Expenses									73,195	150,104	192,663
Deductions									(93,151)	(186,704)	(190,535)
Balance at End of Period	50,225				70,181				50,225	70,181	106,781
Valuation Allowance [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Begining of Period				41,359				26,239	41,359	26,239	13,197
Additions Charged to Costs and Expenses									17,820	16,777	13,042
Deductions									0	(1,657)	0
Balance at End of Period	59,179				41,359				59,179	41,359	26,239
State [Member]
Income Tax Reconciliation [Line Items]
Valuation allowance against tax benefits									9,748	13,856	7,414
non-U.S. [Member]
Deferred Income Taxes [Abstract]
Valuation allowance	14,000								14,000
Income Tax Reconciliation [Line Items]
Valuation allowance against tax benefits									$ 8,072	$ 2,921	$ 254