Pension and Postretirement Plans (Total Benefit/Cost) (Details 5) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Jan. 02, 2011
Defined Benefit Plan Disclosure [Line Items]
Net Periodic Cost (Benefit)	$ 16,044	$ (4,726)	$ (3,863)
Early retirement program expense	8,508	634	0
Total Cost (Benefit) for the Year	25,393	(1,745)	16,427
Current year actuarial gain (loss)	82,470	(16,048)	126,987
Current year prior service credit	0	0	6,336
Amortization of transition asset	0	0	29
Amortization of prior service credit (cost)	1,859	3,925	(1,952)
Total Recognized in Other Comprehensive Income (Before Tax Effects)	89,234	(18,395)	126,471
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	40,344	27,619	26,976
Interest cost	59,124	60,033	60,329
Plan amendment	8,508	2,776
Expected return on assets	(96,132)	(95,983)	(95,340)
Amortization of transition asset	0	0	(29)
Amortization of prior service cost (credit)	3,695	3,605	4,201
Recognized actuarial loss (gain)	9,013	0	0
Net Periodic Cost (Benefit)	16,044	(4,726)	(3,863)
Early retirement program expense	8,508	634	0
Special termination benefits	0	0	5,295
Recognition of prior service cost	0	0	2,369
Total Cost (Benefit) for the Year	24,552	(4,092)	3,801
Current year actuarial gain (loss)	(79,405)	7,046	(126,568)
Amortization of transition asset	0	0	29
Amortization of prior service credit (cost)	(3,695)	(1,463)	(6,570)
Recognized actuarial (loss) gain	(9,013)	0	0
Total Recognized in Other Comprehensive Income (Before Tax Effects)	(92,113)	5,583	(133,109)
Total Recognized in Total (Benefit) Cost and Other Comprehensive Income (Before Tax Effects)	(67,561)	1,491	(129,308)
Supplemental Executive Retirement Plan (SERP) [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,467	1,655	1,381
Interest cost	4,241	4,342	4,244
Plan amendment	0	369	0
Amortization of prior service cost (credit)	54	260	406
Recognized actuarial loss (gain)	1,833	1,411	1,068
Total Cost (Benefit) for the Year	7,595	8,037	7,099
Current year actuarial gain (loss)	8,428	9,059	2,656
Amortization of prior service credit (cost)	(54)	(260)	(406)
Recognized actuarial (loss) gain	(1,833)	(1,411)	(877)
Other adjustments	745	0	0
Total Recognized in Other Comprehensive Income (Before Tax Effects)	7,286	7,388	1,373
Total Recognized in Total (Benefit) Cost and Other Comprehensive Income (Before Tax Effects)	14,881	15,425	8,472
Other Postretirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	3,113	2,872	3,275
Interest cost	2,735	3,063	3,934
Amortization of prior service cost (credit)	(5,608)	(5,650)	(5,026)
Recognized actuarial loss (gain)	(1,478)	(1,921)	(2,032)
Net Periodic Cost (Benefit)	(1,238)	(1,636)	151
Curtailment gain	438	0	(8,583)
Total Cost (Benefit) for the Year	(800)	(1,636)	(8,432)
Current year actuarial gain (loss)	(11,493)	(55)	(3,073)
Current year prior service credit	0	0	(6,336)
Amortization of prior service credit (cost)	5,608	5,650	5,026
Recognized actuarial (loss) gain	1,478	1,921	2,032
Curtailment loss	0	0	4,953
Total Recognized in Other Comprehensive Income (Before Tax Effects)	(4,407)	7,516	2,602
Total Recognized in Total (Benefit) Cost and Other Comprehensive Income (Before Tax Effects)	$ (5,207)	$ 5,880	$ (5,830)