XML 79 R49.htm IDEA: XBRL DOCUMENT
v3.24.0.1

ASSET RETIREMENT OBLIGATIONS (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Asset Retirement Obligation Disclosure [Abstract] |
Schedule of Change in Asset Retirement Obligation | The following table summarizes the change in the Evergy Companies' AROs for the periods ending December 31, 2023 and 2022.
|  | Evergy |  |  | Evergy Kansas Central |  |  | Evergy Metro |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
|  | (millions) |
Beginning balance January 1 |  | $ | 1,153.2 |  |  |  | $ | 960.1 |  |  |  | $ | 565.1 |  |  |  | $ | 443.9 |  |  |  | $ | 444.2 |  |  |  | $ | 381.0 |  |
Additions |  | 9.7 |  |  |  | — |  |  |  | 9.7 |  |  |  | — |  |  |  | — |  |  |  | — |  |
Revision in timing and/or estimates |  | 3.2 |  |  |  | 161.8 |  |  |  | 1.6 |  |  |  | 103.1 |  |  |  | 1.6 |  |  |  | 51.3 |  |
Settlements |  | (21.8) |  |  |  | (13.0) |  |  |  | (9.8) |  |  |  | (6.9) |  |  |  | (8.6) |  |  |  | (5.3) |  |
Accretion |  | 58.8 |  |  |  | 44.3 |  |  |  | 32.7 |  |  |  | 25.0 |  |  |  | 23.2 |  |  |  | 17.2 |  |
Ending balance |  | $ | 1,203.1 |  |  |  | $ | 1,153.2 |  |  |  | $ | 599.3 |  |  |  | $ | 565.1 |  |  |  | $ | 460.4 |  |  |  | $ | 444.2 |  |
Less: current portion |  | (40.3) |  |  |  | (40.4) |  |  |  | (22.2) |  |  |  | (21.3) |  |  |  | (16.0) |  |  |  | (17.1) |  |
Total noncurrent asset retirement obligation |  | $ | 1,162.8 |  |  |  | $ | 1,112.8 |  |  |  | $ | 577.1 |  |  |  | $ | 543.8 |  |  |  | $ | 444.4 |  |  |  | $ | 427.1 |  |

X
- References No definition available. + Details
Name: | us-gaap_AssetRetirementObligationDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481850/410-20-50-1 + Details
Name: | us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration