CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 586,001	$ 501,149
Short-term investments	35,170	35,020
Assets held for sale	134,709	146,467
Accounts receivable, net	971,601	1,517,503
Inventory	190,423	230,067
Deferred income taxes	91,050	118,230
Other current assets	161,378	193,438
Total current assets	2,170,332	2,741,874
Long-term investments and other receivables	2,627	2,806
Property, plant and equipment, net	7,333,808	8,599,125
Goodwill	80,947	173,928
Investment in unconsolidated affiliates	730,487	58,251
Other long-term assets	286,397	303,958
Total assets	10,604,598	11,879,942
Current liabilities:
Current portion of debt	8,739	6,190
Trade accounts payable	403,038	780,060
Accrued liabilities	669,812	728,004
Income taxes payable	75,007	53,221
Total current liabilities	1,156,596	1,567,475
Long-term debt	3,816,717	4,348,859
Other long-term liabilities	604,526	601,816
Deferred income taxes	58,997	443,003
Total liabilities	5,636,836	6,961,153
Commitments and contingencies (Note10)
Shareholders' equity:
Common shares, par value $0.001 per share: Authorized common shares 800,000; issued 329,557 and 328,196, respectively	330	328
Capital in excess of par value	2,459,043	2,452,261
Accumulated other comprehensive income (Revised)	14,768	77,522
Retained earnings (Revised)	3,679,336	3,573,172
Less: treasury shares, at cost, 38,788 common shares	(1,194,664)	(1,194,664)
Total shareholders' equity	4,958,813	4,908,619
Noncontrolling interest	8,949	10,170
Total equity	4,967,762	4,918,789
Total liabilities and equity	$ 10,604,598	$ 11,879,942