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PENSION PLANS AND POST-RETIREMENT BENEFITS - Target Asset Allocations (Details) | Dec. 31, 2023
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Evergy Kansas Central | Pension Benefits | Domestic equities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 26.00%
Evergy Kansas Central | Pension Benefits | International equities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 20.00%
Evergy Kansas Central | Pension Benefits | Bonds |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 39.00%
Evergy Kansas Central | Pension Benefits | Mortgage & asset backed securities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 0.00%
Evergy Kansas Central | Pension Benefits | Real estate investments |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 4.00%
Evergy Kansas Central | Pension Benefits | Other investments |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 11.00%
Evergy Kansas Central | Post-Retirement Benefits | Domestic equities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 26.00%
Evergy Kansas Central | Post-Retirement Benefits | International equities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 18.00%
Evergy Kansas Central | Post-Retirement Benefits | Bonds |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 56.00%
Evergy Kansas Central | Post-Retirement Benefits | Mortgage & asset backed securities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 0.00%
Evergy Kansas Central | Post-Retirement Benefits | Real estate investments |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 0.00%
Evergy Kansas Central | Post-Retirement Benefits | Other investments |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 0.00%
Evergy Metro | Pension Benefits | Domestic equities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 26.00%
Evergy Metro | Pension Benefits | International equities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 19.00%
Evergy Metro | Pension Benefits | Bonds |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 38.00%
Evergy Metro | Pension Benefits | Mortgage & asset backed securities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 0.00%
Evergy Metro | Pension Benefits | Real estate investments |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 6.00%
Evergy Metro | Pension Benefits | Other investments |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 11.00%
Evergy Metro | Post-Retirement Benefits | Domestic equities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 18.00%
Evergy Metro | Post-Retirement Benefits | International equities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 10.00%
Evergy Metro | Post-Retirement Benefits | Bonds |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 66.00%
Evergy Metro | Post-Retirement Benefits | Mortgage & asset backed securities |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 5.00%
Evergy Metro | Post-Retirement Benefits | Real estate investments |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 0.00%
Evergy Metro | Post-Retirement Benefits | Other investments |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan assets, target allocation, percentage | 1.00%

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- Definition Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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