Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 155,839	$ 47,541
Restricted cash	81	547
Accounts and notes receivable
Customers, less allowance for doubtful accounts 2011 - $6,498; 2010 - $7,505	299,166	260,814
Other	15,727	56,984
Inventories	327,657	319,845
Current deferred income taxes	43,032	54,704
Prepaid expenses	21,598	20,109
Assets held for sale	0	13,207
Total current assets	863,100	773,751
Investments and long-term receivables	29,004	37,386
Property, plant & equipment, net	3,418,179	3,632,914
Goodwill	3,086,716	3,097,016
Other intangible assets, net	697,502	691,693
Other noncurrent assets	134,813	106,776
Total assets	8,229,314	8,339,536
Liabilities
Current maturities of long-term debt	134,762	5,246
Short-term borrowings	0	285,500
Trade payables and accruals	103,931	102,315
Accrued salaries, wages and management incentives	60,132	48,841
Accrued interest	12,045	11,246
Other accrued liabilities	95,383	129,084
Liabilities of assets held for sale	0	116
Total current liabilities	406,253	582,348
Long-term debt	2,680,677	2,427,516
Noncurrent deferred income taxes	732,528	843,599
Deferred management incentive and other compensation	29,275	32,393
Pension benefits	225,846	127,136
Other postretirement benefits	124,960	124,617
Asset retirement obligations	153,979	162,730
Other noncurrent liabilities	84,179	83,399
Total liabilities	4,437,697	4,383,738
Other commitments and contingencies (Note 12)
Equity
Common stock, $1 par value - 129,245 shares issued as of 2011 and 128,570 shares issued as of 2010	129,245	128,570
Capital in excess of par value	2,544,740	2,500,886
Retained earnings	1,334,476	1,503,681
Accumulated other comprehensive loss	(216,844)	(177,339)
Total equity	3,791,617	3,955,798
Total liabilities and equity	$ 8,229,314	$ 8,339,536