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Property, Plant And Equipment | 12 Months Ended
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Dec. 31, 2024
Property, Plant and Equipment [Abstract] |
Property, Plant and Equipment | NOTE 10. PROPERTY, PLANT AND EQUIPMENT Net Utility Property Net utility property consisted of the following as of December 31 (dollars in millions):
|  | 2024 |  |  | 2023 |
Utility plant in service |  | $ | 8,180 |  |  | $ | 7,799 |
Construction work in progress |  |  | 238 |  |  |  | 180 |
Total |  |  | 8,418 |  |  |  | 7,979 |
Less: Accumulated depreciation and amortization |  |  | 2,431 |  |  |  | 2,279 |
Total net utility property |  | $ | 5,987 |  |  | $ | 5,700 |
Gross Property, Plant and Equipment The gross balances of the major classifications of property, plant and equipment are detailed in the following table as of December 31 (dollars in millions):
|  | 2024 |  |  | 2023 |
Avista Utilities: |  |  |  |  |  |
Electric production |  | $ | 1,523 |  |  | $ | 1,498 |
Electric transmission |  |  | 1,105 |  |  |  | 1,059 |
Electric distribution |  |  | 2,580 |  |  |  | 2,383 |
Electric construction work-in-progress (CWIP) and other |  |  | 452 |  |  |  | 395 |
Electric total |  |  | 5,660 |  |  |  | 5,335 |
Natural gas underground storage |  |  | 63 |  |  |  | 60 |
Natural gas distribution |  |  | 1,624 |  |  |  | 1,539 |
Natural gas CWIP and other |  |  | 95 |  |  |  | 92 |
Natural gas total |  |  | 1,782 |  |  |  | 1,691 |
Common plant (including CWIP) |  |  | 760 |  |  |  | 760 |
Total Avista Utilities |  |  | 8,202 |  |  |  | 7,786 |
AEL&P: |  |  |  |  |  |
Electric production |  |  | 120 |  |  |  | 119 |
Electric transmission |  |  | 23 |  |  |  | 23 |
Electric distribution |  |  | 36 |  |  |  | 32 |
Electric CWIP and other |  |  | 26 |  |  |  | 9 |
Electric total |  |  | 205 |  |  |  | 183 |
Common plant |  |  | 11 |  |  |  | 10 |
Total AEL&P |  |  | 216 |  |  |  | 193 |
Total gross utility property |  |  | 8,418 |  |  |  | 7,979 |
Other (1) |  |  | 6 |  |  |  | 6 |
Total |  | $ | 8,424 |  |  | $ | 7,985 |
(1) Included in other property and investments-net and other non-current assets on the Consolidated Balance Sheets.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/360/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-7 + Details
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