CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current assets:
Cash	$ 389,915	$ 524,922
Short-term investments	117,218	253,282
Assets held for sale	243,264	383,857
Accounts receivable, net	1,399,543	1,382,623
Inventory	209,793	251,133
Deferred income taxes	121,316	110,480
Other current assets	272,781	226,560
Total current assets	2,753,830	3,132,857
Long-term investments	3,236	4,269
Property, plant and equipment, net	8,597,813	8,712,088
Goodwill	512,964	472,326
Investment in unconsolidated affiliates	64,260	61,690
Other long-term assets	227,708	272,792
Total assets	12,159,811	12,656,022
Current liabilities:
Current debt	10,185	364
Trade accounts payable	545,512	499,010
Accrued liabilities	697,093	599,380
Income taxes payable	58,634	33,628
Total current liabilities	1,311,424	1,132,382
Long-term debt	3,904,117	4,379,336
Other long-term liabilities	377,744	518,664
Deferred income taxes	516,161	599,335
Total liabilities	6,109,446	6,629,717
Commitments and contingencies (Note 19)
Subsidiary preferred stock (Notes 16)	69,188	69,188
Shareholders' equity:
Common shares, par value $0.001 per share: Authorized common shares 800,000; issued 323,711 and 318,813, respectively	324	319
Capital in excess of par value	2,392,585	2,337,244
Accumulated other comprehensive income	307,592	431,595
Retained earnings	4,213,212	4,120,398
Less: treasury shares, at cost, 28,414 common shares	(944,627)	(944,627)
Total shareholders' equity	5,969,086	5,944,929
Noncontrolling interest	12,091	12,188
Total equity	5,981,177	5,957,117
Total liabilities and equity	$ 12,159,811	$ 12,656,022