Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
Assets
Cash and cash equivalents	$ 243,126	$ 155,839	$ 152,379
Restricted cash	0	81	81
Accounts and notes receivable
Accounts and notes receivable, gross	403,520	321,391	437,754
Less: Allowance for doubtful accounts	(6,106)	(6,498)	(7,715)
Accounts and notes receivable, net	397,414	314,893	430,039
Inventories
Finished products	263,893	260,732	249,265
Raw materials	28,221	23,819	26,284
Products in process	6,209	4,198	3,473
Operating supplies and other	38,655	38,908	38,755
Inventories	336,978	327,657	317,777
Current deferred income taxes	45,353	43,032	48,743
Prepaid expenses	26,384	21,598	27,809
Assets held for sale	0	0	26,883
Total current assets	1,049,255	863,100	1,003,711
Investments and long-term receivables	42,226	29,004	28,917
Property, plant & equipment
Property, plant & equipment, cost	6,690,448	6,705,546	6,665,937
Reserve for depreciation, depletion & amortization	(3,477,496)	(3,287,367)	(3,222,469)
Property, plant & equipment, net	3,212,952	3,418,179	3,443,468
Goodwill	3,086,716	3,086,716	3,086,716
Other intangible assets, net	693,308	697,502	698,703
Other noncurrent assets	141,459	134,813	122,011
Total assets	8,225,916	8,229,314	8,383,526
Liabilities
Current maturities of long-term debt	285,153	134,762	5,215
Trade payables and accruals	133,209	103,931	134,853
Other current liabilities	213,735	167,560	239,438
Liabilities of assets held for sale	0	0	1,474
Total current liabilities	632,097	406,253	380,980
Long-term debt	2,527,450	2,680,677	2,816,223
Noncurrent deferred income taxes	680,880	732,528	794,921
Other noncurrent liabilities	618,292	618,239	524,485
Total liabilities	4,458,719	4,437,697	4,516,609
Other commitments and contingencies (Note 18)
Equity
Common stock, $1 par value	129,596	129,245	129,233
Capital in excess of par value	2,567,859	2,544,740	2,538,987
Retained earnings	1,274,465	1,334,476	1,363,640
Accumulated other comprehensive loss	(204,723)	(216,844)	(164,943)
Total equity	3,767,197	3,791,617	3,866,917
Total liabilities and equity	$ 8,225,916	$ 8,229,314	$ 8,383,526