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Information by Business Segments | 12 Months Ended
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Dec. 31, 2024
Segment Reporting [Abstract] |
Information by Business Segments | NOTE 24. INFORMATION BY BUSINESS SEGMENTS The business segment presentation reflects the information reviewed by the Company's Chief Operating Decision Maker (CODM, the Company's President and Chief Operating Officer, who became President and Chief Executive Officer effective January 1, 2025). Such information is the basis for the analysis of segment performance and the allocation of resources. Performance is evaluated based on net income (loss) and variances of actual performance from the Company's budget and/or forecast when making decisions. The accounting policies of the segments are the same as those described in the summary of significant accounting policies. Avista Utilities' business is managed based on the total regulated utility operation; therefore, it is considered one segment. AEL&P is a separate reportable business segment since it has separate financial information and its operations and risks are sufficiently different from Avista Utilities and the other businesses at AERC that it cannot be aggregated with other operating segments. The Other category, which is not a reportable segment, includes other investments and operations of various subsidiaries, as well as certain other operations of Avista Capital. Decisions by the CODM are made in consultation with other members of management, as appropriate, and are subject to the general oversight and strategic direction of the Board of Directors. The following table presents information for each of the Company’s business segments (dollars in millions):
|  | Reportable Segments |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Avista Utilities |  |  | Alaska Electric Light and Power Company |  |  | Total Utility |  |  | Other Non-Reportable Segment Items |  |  | Eliminations (1) |  |  | Total |
2024 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | $ | 1,887 |  |  | $ | 50 |  |  | $ | 1,937 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 1,938 |
Resource costs |  |  | 794 |  |  |  | 4 |  |  |  | 798 |  |  |  | — |  |  |  | — |  |  |  | 798 |
Other operating expenses |  |  | 426 |  |  |  | 17 |  |  |  | 443 |  |  |  | 1 |  |  |  | — |  |  |  | 444 |
Depreciation and amortization |  |  | 263 |  |  |  | 11 |  |  |  | 274 |  |  |  | — |  |  |  | — |  |  |  | 274 |
Interest income |  |  | 15 |  |  |  | — |  |  |  | 15 |  |  |  | 1 |  |  |  | (2 | ) |  |  | 14 |
Interest expense (2) |  |  | 143 |  |  |  | 6 |  |  |  | 149 |  |  |  | 3 |  |  |  | (2 | ) |  |  | 150 |
Other segment expense (3) |  |  | 95 |  |  |  | 1 |  |  |  | 96 |  |  |  | 7 |  |  |  | — |  |  |  | 103 |
Income tax expense (benefit) |  |  | 2 |  |  |  | 3 |  |  |  | 5 |  |  |  | (2 | ) |  |  | — |  |  |  | 3 |
Net income (loss) |  |  | 179 |  |  |  | 8 |  |  |  | 187 |  |  |  | (7 | ) |  |  | — |  |  |  | 180 |
Capital expenditures (4) |  |  | 510 |  |  |  | 23 |  |  |  | 533 |  |  |  | — |  |  |  | — |  |  |  | 533 |
2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | $ | 1,703 |  |  | $ | 48 |  |  | $ | 1,751 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 1,752 |
Resource costs |  |  | 698 |  |  |  | 4 |  |  |  | 702 |  |  |  | — |  |  |  | — |  |  |  | 702 |
Other operating expenses |  |  | 399 |  |  |  | 15 |  |  |  | 414 |  |  |  | 3 |  |  |  | — |  |  |  | 417 |
Depreciation and amortization |  |  | 254 |  |  |  | 11 |  |  |  | 265 |  |  |  | — |  |  |  | — |  |  |  | 265 |
Interest income |  |  | 15 |  |  |  | — |  |  |  | 15 |  |  |  | 1 |  |  |  | (1 | ) |  |  | 15 |
Interest expense (2) |  |  | 137 |  |  |  | 6 |  |  |  | 143 |  |  |  | 2 |  |  |  | (1 | ) |  |  | 144 |
Other segment expense (3) |  |  | 98 |  |  |  | — |  |  |  | 98 |  |  |  | 4 |  |  |  | — |  |  |  | 102 |
Income tax expense (benefit) |  |  | (35 | ) |  |  | 3 |  |  |  | (32 | ) |  |  | (2 | ) |  |  | — |  |  |  | (34 | )
Net income (loss) |  |  | 167 |  |  |  | 9 |  |  |  | 176 |  |  |  | (5 | ) |  |  | — |  |  |  | 171 |
Capital expenditures (4) |  |  | 485 |  |  |  | 14 |  |  |  | 499 |  |  |  | — |  |  |  | — |  |  |  | 499 |
2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | $ | 1,663 |  |  | $ | 46 |  |  | $ | 1,709 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 1,710 |
Resource costs |  |  | 732 |  |  |  | 4 |  |  |  | 736 |  |  |  | — |  |  |  | — |  |  |  | 736 |
Other operating expenses |  |  | 391 |  |  |  | 14 |  |  |  | 405 |  |  |  | 12 |  |  |  | — |  |  |  | 417 |
Depreciation and amortization |  |  | 242 |  |  |  | 11 |  |  |  | 253 |  |  |  | — |  |  |  | — |  |  |  | 253 |
Interest income |  |  | 3 |  |  |  | — |  |  |  | 3 |  |  |  | 1 |  |  |  | — |  |  |  | 4 |
Interest expense (2) |  |  | 112 |  |  |  | 6 |  |  |  | 118 |  |  |  | 1 |  |  |  | — |  |  |  | 119 |
Other segment expense (3) |  |  | 98 |  |  |  | 2 |  |  |  | 100 |  |  |  | (49 | ) |  |  | — |  |  |  | 51 |
Income tax expense (benefit) |  |  | (27 | ) |  |  | 2 |  |  |  | (25 | ) |  |  | 8 |  |  |  | — |  |  |  | (17 | )
Net income |  |  | 118 |  |  |  | 7 |  |  |  | 125 |  |  |  | 30 |  |  |  | — |  |  |  | 155 |
Capital expenditures (4) |  |  | 443 |  |  |  | 9 |  |  |  | 452 |  |  |  | 1 |  |  |  | — |  |  |  | 453 |
Total Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
As of December 31, 2024 |  | $ | 7,494 |  |  | $ | 283 |  |  | $ | 7,777 |  |  | $ | 194 |  |  | $ | (30 | ) |  | $ | 7,941 |
As of December 31, 2023 |  |  | 7,263 |  |  |  | 270 |  |  |  | 7,533 |  |  |  | 191 |  |  |  | (22 | ) |  |  | 7,702 |
As of December 31, 2022 |  |  | 6,976 |  |  |  | 264 |  |  |  | 7,240 |  |  |  | 187 |  |  |  | (10 | ) |  |  | 7,417 |
(1) Eliminations reported as interest expense and interest income represent intercompany interest. Eliminations reported as assets represent intersegment accounts receivable. (2) Including interest expense to affiliated trusts. (3) Other segment items include taxes other than income tax, AFUDC equity, other miscellaneous expenses, and earnings (losses) from investments. (4) The capital expenditures for the other businesses are included in other investing activities on the Consolidated Statements of Cash Flows.

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- Definition The entire disclosure for reporting segments including data and tables. 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