CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 395,923	$ 524,922
Short-term investments	96,015	253,282
Assets held for sale	396,201	383,857
Accounts receivable, net	1,362,434	1,382,623
Inventory	229,494	251,133
Deferred income taxes	239,171	110,480
Other current assets	237,217	226,560
Total current assets	2,956,455	3,132,857
Long-term investments and other receivables	3,371	4,269
Property, plant and equipment, net	8,463,804	8,712,088
Goodwill	479,557	472,326
Investment in unconsolidated affiliates	68,907	61,690
Other long-term assets	230,022	272,792
Total assets	12,202,116	12,656,022
Current liabilities:
Current portion of debt	11,441	364
Trade accounts payable	521,133	499,010
Accrued liabilities	579,476	599,380
Income taxes payable	13,372	33,628
Total current liabilities	1,125,422	1,132,382
Long-term debt	4,036,027	4,379,336
Other long-term liabilities	441,372	518,664
Deferred income taxes	692,514	599,335
Total liabilities	6,295,335	6,629,717
Commitments and contingencies (Note 9)
Subsidiary preferred stock (Note 8)	69,188	69,188
Shareholders' equity:
Common shares, par value $0.001 per share: Authorized common shares 800,000; issued 323,534 and 318,813, respectively	323	319
Capital in excess of par value	2,384,421	2,337,244
Accumulated other comprehensive income	311,631	431,595
Retained earnings	4,074,420	4,120,398
Less: treasury shares, at cost, 28,414 common shares	(944,627)	(944,627)
Total shareholders' equity	5,826,168	5,944,929
Noncontrolling interest	11,425	12,188
Total equity	5,837,593	5,957,117
Total liabilities and equity	$ 12,202,116	$ 12,656,022