CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 398,575	$ 641,702
Short-term investments	140,914	159,488
Assets held for sale	401,500	352,048
Accounts receivable, net	1,576,555	1,116,510
Inventory	272,852	158,836
Deferred income taxes	127,874	31,510
Other current assets	170,044	152,836
Total current assets	3,088,314	2,612,930
Long-term investments and other receivables	11,124	40,300
Property, plant and equipment, net	8,629,946	7,815,419
Goodwill	501,258	494,372
Investment in unconsolidated affiliates	371,021	267,723
Other long-term assets	310,477	415,825
Total assets	12,912,140	11,646,569
Current liabilities:
Current portion of long-term debt	275,326	1,379,018
Trade accounts payable	782,753	355,282
Accrued liabilities	716,773	394,292
Income taxes payable	27,710	25,788
Total current liabilities	1,802,562	2,154,380
Long-term debt	4,348,490	3,064,126
Other long-term liabilities	292,758	245,765
Deferred income taxes	797,925	770,247
Total liabilities	7,241,735	6,234,518
Commitments and contingencies (Note 18)
Subsidiary preferred stock (Notes 5 and 15)	69,188	69,188
Shareholders' equity:
Common shares, par value $.001 per share: Authorized common shares 800,000; issued 317,042 and 315,034, respectively	317	315
Capital in excess of par value	2,287,743	2,255,787
Accumulated other comprehensive income	321,264	342,052
Retained earnings	3,956,364	3,707,881
Less: treasury shares, at cost, 29,414 common shares	(977,873)	(977,873)
Total shareholders' equity	5,587,815	5,328,162
Noncontrolling interest	13,402	14,701
Total equity	5,601,217	5,342,863
Total liabilities and equity	$ 12,912,140	$ 11,646,569