v2.4.0.6

Supplemental Cash Flow Information (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Supplemental Cash Flow Information [Abstract] |  |  |
Interest, Net of Capitalized Interest | $ 196,944,000 | $ 186,718,000 | $ 146,731,000
Income Taxes, Net of Refunds Received | 360,006,000 | 260,224,000 | 233,462,000
Accrued Capital Expenditures | 734,000,000 | 663,000,000 | 709,000,000
Non-Cash Capital Lease Obligations Incurred | 66,000,000 |  |
Non-Cash Property Exchanges | $ 20,000,000 |  |

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