CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 326,881	$ 389,915
Short-term investments	97,886	117,218
Assets held for sale	231,880	243,264
Accounts receivable, net	1,454,368	1,399,543
Inventory	194,371	209,793
Deferred income taxes	133,667	121,316
Other current assets	252,215	272,781
Total current assets	2,691,268	2,753,830
Long-term investments and other receivables	2,915	3,236
Property, plant and equipment, net	8,690,759	8,597,813
Goodwill	512,391	512,964
Investment in unconsolidated affiliates	63,069	64,260
Other long-term assets	226,671	227,708
Total assets	12,187,073	12,159,811
Current liabilities:
Current portion of debt	5,296	10,185
Trade accounts payable	631,015	545,512
Accrued liabilities	584,748	697,093
Income taxes payable	17,083	58,634
Total current liabilities	1,238,142	1,311,424
Long-term debt	3,812,476	3,904,117
Other long-term liabilities	569,993	377,744
Deferred income taxes	526,005	516,161
Total liabilities	6,146,616	6,109,446
Commitments and contingencies (Note 9)
Subsidiary preferred stock	69,188	69,188
Shareholders' equity:
Common shares, par value $0.001 per share: Authorized common shares 800,000; issued 325,772 and 323,711, respectively	326	324
Capital in excess of par value	2,401,614	2,392,585
Accumulated other comprehensive income	160,466	216,140
Retained earnings	4,342,690	4,304,664
Less: treasury shares, at cost, 28,414 common shares	(944,627)	(944,627)
Total shareholders' equity	5,960,469	5,969,086
Noncontrolling interest	10,800	12,091
Total equity	5,971,269	5,981,177
Total liabilities and equity	$ 12,187,073	$ 12,159,811