v2.4.0.6

Segment Reporting (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2010 | Sep. 30, 2010 | Jun. 30, 2010 | Mar. 31, 2010 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Summarized financial information concerning our reportable segments |  |  |  |  |  |  |  |  |  |  |
Gross Revenue |  |  |  |  |  |  |  |  | $ 9,742.8 | $ 9,686.0 | $ 9,819.0
Intercompany Revenue |  |  |  |  |  |  |  |  | (1,549.9) | (1,579.4) | (1,619.9)
Net Revenue | 2,025.2 | 2,116.2 | 2,086.6 | 1,964.9 | 2,020.8 | 2,061.7 | 2,066.4 | 1,957.7 | 8,192.9 | 8,106.6 | 8,199.1
Depreciation, amortization and depletion |  |  |  |  |  |  |  |  | 843.6 | 833.7 | 869.7
Operating (loss) income | 366.7 | 408.5 | 401.2 | 376.2 | 389.4 | 367.6 | 400.8 | 381.3 | 1,552.7 | 1,539.1 | 1,589.8
Capital Expenditures |  |  |  |  |  |  |  |  | 936.5 | 794.7 | 826.3
Total Assets | 19,551.5 |  |  |  | 19,461.9 |  |  |  | 19,551.5 | 19,461.9 | 19,540.3
Reportable Segments [Member] |  |  |  |  |  |  |  |  |  |  |
Summarized financial information concerning our reportable segments |  |  |  |  |  |  |  |  |  |  |
Depreciation, amortization and depletion |  |  |  |  |  |  |  |  | 921.6 | 914.2 | 958.5
Eastern [Member] |  |  |  |  |  |  |  |  |  |  |
Summarized financial information concerning our reportable segments |  |  |  |  |  |  |  |  |  |  |
Gross Revenue |  |  |  |  |  |  |  |  | 2,469.2 | 2,429.3 | 2,485.9
Intercompany Revenue |  |  |  |  |  |  |  |  | (366.1) | (353.8) | (370.9)
Net Revenue |  |  |  |  |  |  |  |  | 2,103.1 | 2,075.5 | 2,115.0
Depreciation, amortization and depletion |  |  |  |  |  |  |  |  | 202.4 | 205.5 | 214.3
Operating (loss) income |  |  |  |  |  |  |  |  | 493.0 | 488.4 | 483.0
Capital Expenditures |  |  |  |  |  |  |  |  | 219.9 | 175.3 | 199.1
Total Assets | 4,457.0 |  |  |  | 4,437.1 |  |  |  | 4,457.0 | 4,437.1 | 4,495.1
Midwestern [Member] |  |  |  |  |  |  |  |  |  |  |
Summarized financial information concerning our reportable segments |  |  |  |  |  |  |  |  |  |  |
Gross Revenue |  |  |  |  |  |  |  |  | 2,197.4 | 2,167.4 | 2,185.4
Intercompany Revenue |  |  |  |  |  |  |  |  | (390.9) | (400.5) | (408.4)
Net Revenue |  |  |  |  |  |  |  |  | 1,806.5 | 1,766.9 | 1,777.0
Depreciation, amortization and depletion |  |  |  |  |  |  |  |  | 206.5 | 203.6 | 225.9
Operating (loss) income |  |  |  |  |  |  |  |  | 375.9 | 402.0 | 367.3
Capital Expenditures |  |  |  |  |  |  |  |  | 218.0 | 210.7 | 208.7
Total Assets | 3,794.4 |  |  |  | 3,718.0 |  |  |  | 3,794.4 | 3,718.0 | 3,605.9
Southern [Member] |  |  |  |  |  |  |  |  |  |  |
Summarized financial information concerning our reportable segments |  |  |  |  |  |  |  |  |  |  |
Gross Revenue |  |  |  |  |  |  |  |  | 2,343.0 | 2,289.0 | 2,371.7
Intercompany Revenue |  |  |  |  |  |  |  |  | (313.1) | (311.7) | (325.5)
Net Revenue |  |  |  |  |  |  |  |  | 2,029.9 | 1,977.3 | 2,046.2
Depreciation, amortization and depletion |  |  |  |  |  |  |  |  | 229.9 | 221.5 | 233.1
Operating (loss) income |  |  |  |  |  |  |  |  | 460.7 | 482.8 | 522.9
Capital Expenditures |  |  |  |  |  |  |  |  | 229.3 | 190.4 | 168.5
Total Assets | 4,907.7 |  |  |  | 4,869.7 |  |  |  | 4,907.7 | 4,869.7 | 4,867.6
Western [Member] |  |  |  |  |  |  |  |  |  |  |
Summarized financial information concerning our reportable segments |  |  |  |  |  |  |  |  |  |  |
Gross Revenue |  |  |  |  |  |  |  |  | 2,619.2 | 2,684.6 | 2,652.4
Intercompany Revenue |  |  |  |  |  |  |  |  | (463.5) | (496.0) | (482.4)
Net Revenue |  |  |  |  |  |  |  |  | 2,155.7 | 2,188.6 | 2,170.0
Depreciation, amortization and depletion |  |  |  |  |  |  |  |  | 220.5 | 218.2 | 234.9
Operating (loss) income |  |  |  |  |  |  |  |  | 486.4 | 521.2 | 582.0
Capital Expenditures |  |  |  |  |  |  |  |  | 267.4 | 222.3 | 180.5
Total Assets | 5,539.0 |  |  |  | 5,518.5 |  |  |  | 5,539.0 | 5,518.5 | 5,461.2
Corporate entities [Member] |  |  |  |  |  |  |  |  |  |  |
Summarized financial information concerning our reportable segments |  |  |  |  |  |  |  |  |  |  |
Gross Revenue |  |  |  |  |  |  |  |  | 114.0 | 115.7 | 123.6
Intercompany Revenue |  |  |  |  |  |  |  |  | (16.3) | (17.4) | (32.7)
Net Revenue |  |  |  |  |  |  |  |  | 97.7 | 98.3 | 90.9
Depreciation, amortization and depletion |  |  |  |  |  |  |  |  | 62.3 | 65.4 | 50.3
Operating (loss) income |  |  |  |  |  |  |  |  | (263.3) | (355.3) | (365.4)
Capital Expenditures |  |  |  |  |  |  |  |  | 1.9 | (4.0) | 69.5
Total Assets | $ 853.4 |  |  |  | $ 918.6 |  |  |  | $ 853.4 | $ 918.6 | $ 1,110.5

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