v2.4.0.6

Segment Information (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended |
--- | --- | ---
Mar. 31, 2013 | Mar. 31, 2012 | Dec. 31, 2012
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |
Net Operating Revenues | $ 3,356,514 | $ 2,806,651 |
Operating Income (Loss) | 833,074 | 559,772 |
Other Income (Expense), Net | (10,134) | 10,631 |
Interest Expense, Net | 61,921 | 50,269 |
Income Before Income Taxes | 761,019 | 520,134 |
Total Assets | 28,232,613 |  | 27,336,578
United States [Member] |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |
Net Operating Revenues | 3,031,852 | 2,591,341 |
Operating Income (Loss) | 690,526 | 530,951 |
Total Assets | 25,249,005 |  | 24,523,072
Canada [Member] |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |
Net Operating Revenues | 183,743 | 88,070 |
Operating Income (Loss) | 71,413 | (38,584) |
Total Assets | 1,070,239 |  | 1,202,031
Trinidad [Member] |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |
Net Operating Revenues | 135,348 | 121,070 |
Operating Income (Loss) | 80,895 | 77,213 |
Total Assets | 1,065,583 |  | 1,012,727
Other International [Member] |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |
Net Operating Revenues | 5,571 | 6,170 |
Operating Income (Loss) | (9,760) | (9,808) |
Total Assets | $ 847,786 |  | $ 598,748

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