Consolidated Statements Of Shareholders' Equity (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Balance [Member]	Total
Beginning Balance at Dec. 31, 2008	$ 3,357	$ 846,796	$ 6,458,778	$ (522,526)	$ (4,670,802)	$ 2,115,603
Beginning Balance, shares at Dec. 31, 2008	335,653,577
Comprehensive income:
Net income (loss)			(55,116)			(55,116)
Other comprehensive income (loss):
Foreign currency translation adjustment				30,932		30,932
Amortization of net prior service cost, net of taxes				2,679		2,679
Amortization of actuarial loss, net of taxes				11,761		11,761
Pension and post-retirement plan funded status adjustment, net of taxes				29,111		29,111
Pension and post-retirement plan settlement and curtailment, net of taxes				32,197		32,197
Change in net unrealized gains (losses):
Investment in retained securitization interests, net of taxes				13,600		13,600
Derivative financial instruments, net of tax benefit				(1,239)		(1,239)
Comprehensive income						63,925
Adjustment to apply measurement date provisions of FSP 115-2, net of taxes			14,413	(14,413)
Dividends			(93,807)			(93,807)
Repurchase of common stock					(1,920)	(1,920)
Share-based compensation and 401(k) match made with Treasury shares		27,363			2	27,365
Issuance of nonvested stock (in shares)	1,147,393
Issuance of nonvested stock	11	(11)
Tax benefit of stock options and nonvested stock		(3,048)				(3,048)
Ending Balance at Dec. 31, 2009	3,368	871,100	6,324,268	(417,898)	(4,672,720)	2,108,118
Ending Balance, shares at Dec. 31, 2009	336,800,970
Comprehensive income:
Net income (loss)			146,545			146,545
Other comprehensive income (loss):
Foreign currency translation adjustment				9,449		9,449
Amortization of net prior service cost, net of taxes				925		925
Amortization of actuarial loss, net of taxes				20,944		20,944
Pension and post-retirement plan funded status adjustment, net of taxes				18,431		18,431
Pension and post-retirement plan settlement and curtailment, net of taxes				1,549		1,549
Change in net unrealized gains (losses):
Derivative financial instruments, net of tax benefit				(2,972)		(2,972)
Marketable securities, net of tax benefit				(133)		(133)
Comprehensive income						194,738
Adjustment for consolidation of QSPEs under ASC Topics 810 and 860			(40,591)	3,483		(37,108)
Dividends			(94,145)			(94,145)
Repurchase of common stock					(1,706)	(1,706)
Share-based compensation and 401(k) match made with Treasury shares		26,961				26,961
Issuance of nonvested stock (in shares)	823,594
Issuance of nonvested stock	8	(8)
Exercise of stock options	6	7,839				7,845
Exercise of stock options (in shares)	635,892
Tax benefit of stock options and nonvested stock		2,163				2,163
Ending Balance at Dec. 31, 2010	3,382	908,055	6,336,077	(366,222)	(4,674,426)	2,206,866
Ending Balance, shares at Dec. 31, 2010	338,260,456
Comprehensive income:
Net income (loss)			599,114			599,114
Other comprehensive income (loss):
Foreign currency translation adjustment				(5,616)		(5,616)
Amortization of net prior service cost, net of taxes				(564)		(564)
Amortization of actuarial loss, net of taxes				23,584		23,584
Pension and post-retirement plan funded status adjustment, net of taxes				(146,768)		(146,768)
Pension and post-retirement plan settlement and curtailment, net of taxes				174		174
Change in net unrealized gains (losses):
Derivative financial instruments, net of tax benefit				18,219		18,219
Marketable securities, net of tax benefit				460		460
Comprehensive income						488,603
Dividends			(111,011)			(111,011)
Repurchase of common stock					(224,551)	(224,551)
Share-based compensation and 401(k) match made with Treasury shares		49,993			3	49,996
Issuance of nonvested stock (in shares)	473,240
Issuance of nonvested stock	5	(5)
Exercise of stock options	4	7,836				7,840
Exercise of stock options (in shares)	373,534					374,000
Tax benefit of stock options and nonvested stock		2,513				2,513
Ending Balance at Dec. 31, 2011	$ 3,391	$ 968,392	$ 6,824,180	$ (476,733)	$ (4,898,974)	$ 2,420,256
Ending Balance, shares at Dec. 31, 2011	339,107,230