Consolidated Statements of Changes in Common Shareholders' Equity (USD $) In Thousands	Total	Capital in Excess of Par Value [Member]	Retained Earnings [Member]	Cumulative Foreign Currency Translation Adjustment [Member]	Unrealized Gain on Available- for- Sale Securities [Member]	Unrealized Gain (Loss) on Pensions and Other Postretirement Plans [Member]	Cash Flow Hedge [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]	Class A Common Stock [Member]	Class B Common Stock [Member]
As of at Jan. 02, 2011		$ 249,719	$ 4,520,332	$ 37,606	$ 70,707	$ 73,826	$ 0	$ (2,157,826)	$ 0	$ 1,241	$ 18,759
Net income for the year	117,157		117,157
Net income attributable to noncontrolling interest	7
Net income attributable to redeemable noncontrolling interests			(7)
Dividends paid on common stock			(74,576)
Dividends paid on redeemable preferred stock	(917)		(917)
Repurchase of Class B common stock								248,055
Issuance of Class B common stock, net of restricted stock award forfeitures		(8,040)						7,692
Amortization of unearned stock compensation and stock option expense		11,789
Change in foreign currency translation adjustment (net of taxes)				(16,268)
Change in unrealized gain on available-for-sale securities (net of taxes)	9,651				9,651
Adjustment for pensions and other postretirement plans (net of taxes)	(10,201)					(10,201)
Conversion of Class A common stock to Class B common stock										(12)	12
Taxes arising from employee stock plans		(701)
Cash flow hedge							8
As of at Dec. 31, 2011		252,767	4,561,989	21,338	80,358	63,625	8	(2,398,189)	0	1,229	18,771
Net income for the year	132,187		132,187
Noncontrolling Interest, Increase from Business Combination									191
Net income attributable to noncontrolling interest	74		(51)						51
Net income attributable to redeemable noncontrolling interests			(23)
Distribution to noncontrolling interests									(52)
Dividends paid on common stock			(146,432)
Dividends paid on redeemable preferred stock	(895)		(895)
Repurchase of Class B common stock								103,196
Issuance of Class B common stock, net of restricted stock award forfeitures		(27,423)						27,038
Amortization of unearned stock compensation and stock option expense		14,662
Change in foreign currency translation adjustment (net of taxes)	4,734			4,734
Change in unrealized gain on available-for-sale securities (net of taxes)	30,195				30,195
Adjustment for pensions and other postretirement plans (net of taxes)	53,544					53,544
Conversion of Class A common stock to Class B common stock										(10)	10
Taxes arising from employee stock plans		740
Cash flow hedge	(1,132)						(948)
As of at Dec. 31, 2012	2,586,218	240,746	4,546,775	26,072	110,553	117,169	(940)	(2,474,347)	190	1,219	18,781
Net income for the year	237,345		237,345
Acquisitions and noncontrolling interest		3,932
Net income attributable to noncontrolling interest	480		(479)						479
Net income attributable to redeemable noncontrolling interests			(1)
Distribution to noncontrolling interests									(448)
Dividends paid on redeemable preferred stock	(855)		(863)
Repurchase of Class B common stock								17,709
Issuance of Class B common stock, net of restricted stock award forfeitures		(4,271)						1,723
Amortization of unearned stock compensation and stock option expense		46,908
Change in foreign currency translation adjustment (net of taxes)	(1,059)			(1,059)
Change in unrealized gain on available-for-sale securities (net of taxes)	63,110				63,110
Adjustment for pensions and other postretirement plans (net of taxes)	384,277					384,277
Conversion of Class A common stock to Class B common stock										(50)	50
Taxes arising from employee stock plans		814
Cash flow hedge	(178)						312
As of at Dec. 31, 2013	$ 3,300,288	$ 288,129	$ 4,782,777	$ 25,013	$ 173,663	$ 501,446	$ (628)	$ (2,490,333)	$ 221	$ 1,169	$ 18,831