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v3.22.4

Segment and Related Information (Income Statement and Balance Sheet Data) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Income Statement Data |  |  |
Operating Revenues from external customers | $ 7,902 | $ 5,783 | $ 5,474
Depreciation | 1,181 | 1,082 | 1,022
Amortization | 52 | 39 | 58
Interest Expense | 513 | 918 | 634
Income Before Income Taxes | 915 | 521 | 954
Income Taxes | 201 | 503 | 314
Deferred income taxes and investment tax credits | 179 | 87 | 169
Net income (loss) | 756 | (1,480) | 1,469
Cash Flow Data |  |  |
Expenditures for long-lived assets | 2,158 | 1,979 | 2,278
Balance Sheet Data |  |  |
Total Assets | 37,837 | 33,223 |
Kentucky Regulated [Member] |  |  |
Income Statement Data |  |  |
Operating Revenues from external customers | 3,811 | 3,348 | 3,106
Depreciation | 685 | 647 | 606
Amortization | 23 | 15 | 19
Interest Expense | 262 | 249 | 300
Income Before Income Taxes | 621 | 562 | 516
Income Taxes | 114 | 94 | 98
Deferred income taxes and investment tax credits | 6 | 272 | 64
Net income (loss) | 507 | 468 | 418
Cash Flow Data |  |  |
Expenditures for long-lived assets | 917 | 1,026 | 966
Balance Sheet Data |  |  |
Total Assets | 16,904 | 16,360 |
Segment Information (Numeric) [Abstract] |  |  |
Financing Costs Allocated to Segment, Net of Tax |  |  | 32
Income Taxes Allocated to Segment |  |  | 8
Pennsylvania Regulated [Member] |  |  |
Income Statement Data |  |  |
Operating Revenues from external customers | 3,030 | 2,402 | 2,330
Depreciation | 393 | 424 | 403
Amortization | 22 | 19 | 26
Interest Expense | 171 | 162 | 172
Income Before Income Taxes | 699 | 599 | 664
Income Taxes | 174 | 154 | 167
Deferred income taxes and investment tax credits | 91 | 79 | 82
Net income (loss) | 525 | 445 | 497
Cash Flow Data |  |  |
Expenditures for long-lived assets | 889 | 904 | 1,154
Balance Sheet Data |  |  |
Total Assets | 13,565 | 13,336 |
Corporate And Other [Member] |  |  |
Income Statement Data |  |  |
Operating Revenues from external customers | 23 | 33 | 38
Depreciation | 11 | 11 | 13
Amortization | 5 | 5 | 13
Interest Expense | 41 | 507 | 162
Income Before Income Taxes | (347) | (640) | (226)
Income Taxes | (73) | 255 | 49
Deferred income taxes and investment tax credits | 43 | (264) | 23
Net income (loss) | (274) | (895) | (275)
Cash Flow Data |  |  |
Expenditures for long-lived assets | 84 | 49 | 158
Balance Sheet Data |  |  |
Total Assets | 1,287 | 3,527 |
Discontinued Operations Segment |  |  |
Income Statement Data |  |  |
Net income (loss) | 42 | (1,498) | 829
Rhode Island Regulated |  |  |
Income Statement Data |  |  |
Operating Revenues from external customers | 1,038 | 0 | 0
Depreciation | 92 | 0 | 0
Amortization | 2 | 0 | 0
Interest Expense | 39 | 0 | 0
Income Before Income Taxes | (58) | 0 | 0
Income Taxes | (14) | 0 | 0
Deferred income taxes and investment tax credits | 39 | 0 | 0
Net income (loss) | (44) | 0 | 0
Cash Flow Data |  |  |
Expenditures for long-lived assets | 268 | 0 | $ 0
Balance Sheet Data |  |  |
Total Assets | $ 6,081 | $ 0 |

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