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Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2016
Income Taxes |
Income (loss) from continuing operations before income taxes |
|  | Year Ended December 31, |
United States and Other Jurisdictions |  | 2016 |  | 2015 |  | 2014 |
|  | (In thousands) |
United States |  | $ | (728,589) |  | $ | (264,919) |  | $ | (598,121) |
Other jurisdictions |  |  | (469,486) |  |  | (162,616) |  |  | (6,494) |
Income (loss) from continuing operations before income taxes |  | $ | (1,198,075) |  | $ | (427,535) |  | $ | (604,615) |
Income tax expense (benefit) from continuing operations |
|  | Year Ended December 31, |
|  | 2016 |  | 2015 |  | 2014 |
|  | (In thousands) |
Current: |  |  |  |  |  |  |  |  |  |
U.S. federal |  | $ | (19,937) |  | $ | 5,088 |  | $ | 183,840 |
Outside the U.S. |  |  | 31,846 |  |  | 76,550 |  |  | 109,072 |
State |  |  | 2,871 |  |  | 8,227 |  |  | 9,401 |
|  | $ | 14,780 |  | $ | 89,865 |  | $ | 302,313 |
Deferred: |  |  |  |  |  |  |  |  |  |
U.S. federal |  | $ | (164,297) |  | $ | (182,518) |  | $ | (211,119) |
Outside the U.S. |  |  | (14,641) |  |  | 1,757 |  |  | (9,127) |
State |  |  | (22,673) |  |  | (7,142) |  |  | (19,401) |
|  | $ | (201,611) |  | $ | (187,903) |  | $ | (239,647) |
Income tax expense (benefit) |  | $ | (186,831) |  | $ | (98,038) |  | $ | 62,666 |
Reconciliation of the differences between taxes on income (loss) before income taxes |
|  | Year Ended December 31, |
|  | 2016 |  | 2015 |  | 2014 |
|  | (In thousands) |
Income tax provision at statutory (Bermuda rate of 0%) |  | $ | — |  | $ | — |  | $ | — |
Taxes (benefit) on U.S. and other international earnings (losses) at greater than the Bermuda rate |  |  | (181,426) |  |  | (109,101) |  |  | (83,747) |
Increase (decrease) in valuation allowance |  |  | 17,865 |  |  | 22,655 |  |  | (9,934) |
Tax reserves and interest |  |  | (3,468) |  |  | (12,679) |  |  | 166,347 |
State income taxes (benefit) |  |  | (19,802) |  |  | 1,087 |  |  | (10,000) |
Income tax expense (benefit) |  | $ | (186,831) |  | $ | (98,038) |  | $ | 62,666 |
Effective tax rate |  |  | 15.6% |  |  | 22.9% |  |  | (10.4)% |
Deferred tax assets and liabilities |
|  | December 31, |
|  | 2016 |  | 2015 |
|  | (In thousands) |
Deferred tax assets: |  |  |  |  |  |  |
Net operating loss carryforwards |  | $ | 1,826,656 |  | $ | 1,510,354 |
Equity compensation |  |  | 36,972 |  |  | 37,633 |
Deferred revenue |  |  | 31,082 |  |  | 19,422 |
Tax credit and other attribute carryforwards |  |  | 91,680 |  |  | 119,471 |
Insurance loss reserves |  |  | 5,118 |  |  | 6,192 |
Accrued interest |  |  | 357,285 |  |  | 288,687 |
Other |  |  | 115,909 |  |  | 135,185 |
Subtotal |  |  | 2,464,702 |  |  | 2,116,944 |
Valuation allowance |  |  | (1,807,728) |  |  | (1,560,162) |
Deferred tax assets: |  | $ | 656,974 |  | $ | 556,782 |
Deferred tax liabilities: |  |  |  |  |  |  |
Depreciation and amortization for tax in excess of book expense |  | $ | 288,086 |  | $ | 384,513 |
Variable interest investments |  |  | 641 |  |  | 718 |
Other |  |  | 11,154 |  |  | 16,009 |
Deferred tax liability |  | $ | 299,881 |  | $ | 401,240 |
Net deferred tax assets (liabilities) |  | $ | 357,093 |  | $ | 155,542 |
Balance Sheet Summary: |  |  |  |  |  |  |
Net noncurrent deferred asset (1) |  | $ | 366,588 |  | $ | 184,868 |
Net noncurrent deferred liability |  |  | (9,495) |  |  | (29,326) |
Net deferred asset (liability) |  | $ | 357,093 |  | $ | 155,542 |
| (1) |  | This amount is included in other long-term assets.
Change in unrecognized tax benefits |
|  | Year Ended December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
|  | (In thousands) |
Balance as of January 1 |  | $ | 188,376 |  |  | $ | 201,338 |  |  | $ | 47,552 |
Additions based on tax positions related to the current year |  |  | — |  |  |  | 384 |  |  |  | 167,107 | (4)
Additions for tax positions of prior years |  |  | 3,873 |  |  |  | — |  |  |  | 1,744 |
Reductions for tax positions for prior years |  |  | (11,547) | (1) |  |  | (9,234) | (2) |  |  | (6,843) |
Settlements |  |  | (1,447) |  |  |  | (4,112) | (3) |  |  | (8,222) | (5)
Balance as of December 31 |  | $ | 179,255 |  |  | $ | 188,376 |  |  | $ | 201,338 |
| (1) |  | Includes $7.2 million related to the expiration of statute of limitations in Australia, Algeria and Mexico, a $2.0 million reduction to Trinidad and $2.1 million related to foreign currency translation.
| (2) |  | Includes a $6.0 million reduction in Canada, Trinidad and the U.S., $2.0 million related to foreign currency translation and $1.1 million due to the expiration of statute of limitations.
| (3) |  | Includes $5.0 million related to settlements in Colombia, Ecuador, U.S. and Canada.
| (4) |  | Includes $166.0 million related to internal restructuring.
| (5) |  | Includes $7.6 million related to settlements in Algeria, Canada and Oman.

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