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v3.22.2

Report of Business Segments (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2021 | Mar. 31, 2021 | Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Operating revenues | $ 803.7 |  | $ 577.4 |  | $ 1,393.0 | $ 2,208.0 |
Fuel, purchased power and direct transmission expense | 393.3 |  | 200.0 |  | 649.0 | 1,546.8 |
Other operation and maintenance | 118.1 |  | 119.2 |  | 233.1 | 228.5 |
Depreciation and amortization | 111.6 |  | 102.9 |  | 219.0 | 201.6 |
Taxes other than income | 24.1 |  | 25.8 |  | 52.2 | 53.0 |
OPERATING INCOME | 156.6 |  | 129.5 |  | 239.7 | 178.1 |
Income (Loss) from Equity Method Investments | 0.0 |  | 33.5 |  | 0.0 | 86.7 |
Other income (expense) | 11.7 |  | (0.1) |  | 21.0 | 0.8 |
Interest expense | 42.4 |  | 39.9 |  | 82.5 | 79.3 |
Income tax expense (benefit) | 13.2 |  | 10.1 |  | 68.3 | 20.7 |
Net income (loss) | 73.1 | $ 279.5 | 112.9 | $ 52.7 | 352.6 | 165.6 |
Investment in unconsolidated affiliates |  |  | 425.4 |  |  | 425.4 |
Total assets | 12,838.0 |  | 11,899.5 |  | 12,838.0 | 11,899.5 | $ 12,606.4
Gain (Loss) on Disposition of Assets |  |  |  |  |  | 86.7 |
Equity Securities, FV-NI, Gain (Loss) | (39.6) |  | 0.0 |  | 242.7 | 0.0 |
Electric Utility [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Operating revenues | 803.7 |  | 577.4 |  | 1,393.0 | 2,208.0 |
Fuel, purchased power and direct transmission expense | 393.3 |  | 200.0 |  | 649.0 | 1,546.8 |
Other operation and maintenance | 118.3 |  | 118.3 |  | 233.8 | 228.6 |
Depreciation and amortization | 111.6 |  | 102.9 |  | 219.0 | 201.6 |
Taxes other than income | 23.3 |  | 25.0 |  | 50.1 | 50.7 |
OPERATING INCOME | 157.2 |  | 131.2 |  | 241.1 | 180.3 |
Income (Loss) from Equity Method Investments |  |  | 0.0 |  |  | 0.0 |
Other income (expense) | (0.3) |  | 1.2 |  | 0.4 | 2.9 |
Interest expense | 39.8 |  | 37.9 |  | 78.0 | 76.3 |
Income tax expense (benefit) | 16.4 |  | 9.4 |  | 23.8 | 10.6 |
Net income (loss) | 100.7 |  | 85.1 |  | 139.7 | 96.3 |
Investment in unconsolidated affiliates |  |  | 0.0 |  |  | 0.0 |
Total assets | 12,317.2 |  | 11,459.3 |  | 12,317.2 | 11,459.3 |
Equity Securities, FV-NI, Gain (Loss) | 0.0 |  |  |  | 0.0 |  |
Natural Gas Midstream Operations [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Operating revenues | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
Fuel, purchased power and direct transmission expense | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
Other operation and maintenance | 0.5 |  | 1.6 |  | 1.2 | 2.0 |
Depreciation and amortization | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
Taxes other than income | 0.1 |  | 0.1 |  | 0.1 | 0.2 |
OPERATING INCOME | (0.6) |  | (1.7) |  | (1.3) | (2.2) |
Income (Loss) from Equity Method Investments |  |  | 33.5 |  |  | 86.7 |
Other income (expense) | 12.4 |  | (0.2) |  | 21.1 | (0.7) |
Interest expense | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
Income tax expense (benefit) | (8.9) |  | (0.6) |  | 51.3 | 13.7 |
Net income (loss) | (18.9) |  | 32.2 |  | 211.2 | 70.1 |
Investment in unconsolidated affiliates |  |  | 425.4 |  |  | 425.4 |
Total assets | 401.7 |  | 427.8 |  | 401.7 | 427.8 |
Equity Securities, FV-NI, Gain (Loss) | (39.6) |  |  |  | 242.7 |  |
Other Operations [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Operating revenues | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
Fuel, purchased power and direct transmission expense | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
Other operation and maintenance | (0.7) |  | (0.7) |  | (1.9) | (2.1) |
Depreciation and amortization | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
Taxes other than income | 0.7 |  | 0.7 |  | 2.0 | 2.1 |
OPERATING INCOME | 0.0 |  | 0.0 |  | (0.1) | 0.0 |
Income (Loss) from Equity Method Investments |  |  | 0.0 |  |  | 0.0 |
Other income (expense) | 0.0 |  | (0.5) |  | 0.0 | (0.6) |
Interest expense | 3.0 |  | 2.6 |  | 5.0 | 3.8 |
Income tax expense (benefit) | 5.7 |  | 1.3 |  | (6.8) | (3.6) |
Net income (loss) | (8.7) |  | (4.4) |  | 1.7 | (0.8) |
Investment in unconsolidated affiliates |  |  | 0.0 |  |  | 0.0 |
Total assets | 751.9 |  | 127.4 |  | 751.9 | 127.4 |
Equity Securities, FV-NI, Gain (Loss) | 0.0 |  |  |  | 0.0 |  |
Eliminations [Member] |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |
Operating revenues | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
Fuel, purchased power and direct transmission expense | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
Other operation and maintenance | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
Depreciation and amortization | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
Taxes other than income | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
OPERATING INCOME | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
Income (Loss) from Equity Method Investments |  |  | 0.0 |  |  | 0.0 |
Other income (expense) | (0.4) |  | (0.6) |  | (0.5) | (0.8) |
Interest expense | (0.4) |  | (0.6) |  | (0.5) | (0.8) |
Income tax expense (benefit) | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
Net income (loss) | 0.0 |  | 0.0 |  | 0.0 | 0.0 |
Investment in unconsolidated affiliates |  |  | 0.0 |  |  | 0.0 |
Total assets | (632.8) |  | $ (115.0) |  | (632.8) | $ (115.0) |
Equity Securities, FV-NI, Gain (Loss) | $ 0.0 |  |  |  | $ 0.0 |  |

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