$EVRG
Evergy, Inc. Stock $evrg

$evrg Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000171126924000007 Filed on February 29, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$1.331B	$1.188B	$5.508B
YoY Change	2.64%	-7.17%	-5.99%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$291.8M	$286.0M	$943.3M
YoY Change	4.78%	21.65%	12.82%
% of Gross Profit
Operating Expenses	$1.071B	$1.007B	$4.226B
YoY Change	5.24%	-12.45%	-7.18%
Operating Profit	$260.2M		$1.282B
YoY Change	-6.84%		1.2%
Interest Expense	$133.2M	-$124.5M	$525.8M
YoY Change	8.2%	19.94%	30.15%
% of Operating Profit	51.19%		41.0%
Other Income/Expense, Net	$4.300M	-$13.50M	-$4.800M
YoY Change		-41.81%	-91.72%
Pretax Income	$131.3M	$42.60M	$751.8M
YoY Change	-15.94%	-258.96%	-6.63%
Income Tax	$7.300M	-$16.40M	$15.60M
% Of Pretax Income	5.56%	-38.5%	2.08%
Net Earnings	$122.7M	$58.00M	$731.3M
YoY Change	-13.96%	673.33%	-2.84%
Net Earnings / Revenue	9.22%	4.88%	13.28%
Basic Earnings Per Share	$0.53		$3.18
Diluted Earnings Per Share	$0.53	$0.25	$3.17
COMMON SHARES
Basic Shares Outstanding	229.7M shares	229.7M shares	230.0M shares
Diluted Shares Outstanding	230.4M shares		230.5M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$63.70M	$27.70M	$27.70M
YoY Change	124.3%	9.92%	9.92%
Cash & Equivalents	$63.70M	$27.70M	$27.70M
Short-Term Investments
Other Short-Term Assets	$32.40M	$31.40M	$374.8M
YoY Change	-31.06%	-29.44%	-18.57%
Inventory	$800.7M	$776.2M	$776.2M
Prepaid Expenses
Receivables	$175.3M	$256.9M	$87.50M
Other Receivables	$485.8M	$522.9M	$522.9M
Total Short-Term Assets	$1.827B	$1.789B	$1.789B
YoY Change	1.57%	-2.87%	-2.87%
LONG-TERM ASSETS
Property, Plant & Equipment	$23.95B	$23.60B	$23.80B
YoY Change	7.24%	6.59%	6.46%
Goodwill	$2.337B	$2.337B
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$583.0M	$560.0M	$3.051B
YoY Change	5.31%	4.77%	3.18%
Total Long-Term Assets	$29.43B	$29.19B	$29.19B
YoY Change	5.53%	5.57%	5.57%
TOTAL ASSETS
Total Short-Term Assets	$1.827B	$1.789B	$1.789B
Total Long-Term Assets	$29.43B	$29.19B	$29.19B
Total Assets	$31.26B	$30.98B	$30.98B
YoY Change	5.29%	5.04%	5.04%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$356.7M	$616.9M	$616.9M
YoY Change	-2.65%	2.68%	2.68%
Accrued Expenses	$233.8M	$226.8M	$226.8M
YoY Change	33.75%	2.39%	2.39%
Deferred Revenue
YoY Change
Short-Term Debt	$1.161B	$1.294B	$1.294B
YoY Change	-45.09%	-23.5%	-23.5%
Long-Term Debt Due	$811.5M	$800.0M	$807.2M
YoY Change	482.14%	82.19%	81.47%
Total Short-Term Liabilities	$3.190B	$3.513B	$3.513B
YoY Change	-7.98%	0.54%	0.54%
LONG-TERM LIABILITIES
Long-Term Debt	$11.66B	$11.05B	$11.10B
YoY Change	15.46%	11.59%	11.61%
Other Long-Term Liabilities	$291.3M	$287.9M	$4.580B
YoY Change	0.0%	0.0%	0.44%
Total Long-Term Liabilities	$18.40B	$17.78B	$15.68B
YoY Change	10.08%	7.73%	8.1%
TOTAL LIABILITIES
Total Short-Term Liabilities	$3.190B	$3.513B	$3.513B
Total Long-Term Liabilities	$18.40B	$17.78B	$15.68B
Total Liabilities	$21.59B	$21.29B	$21.31B
YoY Change	6.98%	6.47%	6.53%
SHAREHOLDERS EQUITY
Retained Earnings	$2.432B	$2.458B
YoY Change	5.76%	6.93%
Common Stock	$7.235B	$7.235B
YoY Change	0.18%	0.21%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$9.639B	$9.663B	$9.663B
YoY Change
Total Liabilities & Shareholders Equity	$31.26B	$30.98B	$30.98B
YoY Change	5.29%	5.04%	5.04%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$122.7M	$58.00M	$731.3M
YoY Change	-13.96%	673.33%	-2.84%
Depreciation, Depletion And Amortization	$291.8M	$286.0M	$943.3M
YoY Change	4.78%	21.65%	12.82%
Cash From Operating Activities	$317.3M	$428.5M	$1.980B
YoY Change	-12.57%	32.17%	9.9%
INVESTING ACTIVITIES
Capital Expenditures	$618.6M	$676.1M	$2.334B
YoY Change	17.23%	22.5%	7.73%
Acquisitions
YoY Change
Other Investing Activities	-$2.700M	-$3.700M	-$1.100M
YoY Change	-165.85%	-114.92%	-94.15%
Cash From Investing Activities	-$583.2M	-$679.8M	-$2.472B
YoY Change	17.37%	28.97%	14.85%
FINANCING ACTIVITIES
Cash Dividend Paid	$147.7M		$569.6M
YoY Change	4.98%		6.51%
Common Stock Issuance & Retirement, Net			$0.00
YoY Change
Debt Paid & Issued, Net	$0.00		$439.5M
YoY Change	-100.0%		6.96%
Cash From Financing Activities	$303.6M	238.0M	$494.0M
YoY Change	121.28%	17.01%	41.43%
NET CHANGE
Cash From Operating Activities	$317.3M	428.5M	$1.980B
Cash From Investing Activities	-$583.2M	-679.8M	-$2.472B
Cash From Financing Activities	$303.6M	238.0M	$494.0M
Net Change In Cash	$37.70M	-13.30M	$2.500M
YoY Change	1078.13%	-2760.0%	-350.0%
FREE CASH FLOW
Cash From Operating Activities	$317.3M	$428.5M	$1.980B
Capital Expenditures	$618.6M	$676.1M	$2.334B
Free Cash Flow	-$301.3M	-$247.6M	-$353.8M
YoY Change	82.83%	8.74%	-2.96%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2021	evrg	Payments For Asset Retirement Obligations PaymentsForAssetRetirementObligations	22600000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	200000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	5400000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9685000000	usd
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	497900000	usd
CY2021	us-gaap	Dividends Share Based Compensation DividendsShareBasedCompensation	1700000	usd
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0001711269
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
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CY2023Q4	us-gaap	Derivative Asset Noncurrent Statement Of Financial Position Extensible Enumeration DerivativeAssetNoncurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2023Q4	us-gaap	Derivative Liability Current Statement Of Financial Position Extensible Enumeration DerivativeLiabilityCurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherLiabilitiesCurrent
CY2023Q4	us-gaap	Derivative Liability Noncurrent Statement Of Financial Position Extensible Enumeration DerivativeLiabilityNoncurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2022Q4	us-gaap	Derivative Asset Current Statement Of Financial Position Extensible Enumeration DerivativeAssetCurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssetsCurrent
CY2022Q4	us-gaap	Derivative Asset Noncurrent Statement Of Financial Position Extensible Enumeration DerivativeAssetNoncurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2022Q4	us-gaap	Derivative Liability Current Statement Of Financial Position Extensible Enumeration DerivativeLiabilityCurrentStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#OtherLiabilitiesCurrent
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CY2023Q4	us-gaap	Finance Lease Liability Current Statement Of Financial Position Extensible List FinanceLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesCurrent
CY2023Q4	us-gaap	Finance Lease Liability Noncurrent Statement Of Financial Position Extensible List FinanceLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentNet
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CY2023Q4	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherLiabilitiesNoncurrent
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	13251118253	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	229730266	shares
CY2023	dei	Auditor Name AuditorName	DELOITTE & TOUCHE LLP
CY2023	dei	Auditor Location AuditorLocation	Kansas City, Missouri
CY2023	us-gaap	Revenues Revenues	5508200000	usd
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CY2023	evrg	Spp Network Transmission Costs SPPNetworkTransmissionCosts	302600000	usd
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CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	896400000	usd
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CY2023	evrg	Sibley Unit3 Impairment Loss And Other Regulatory Disallowances SibleyUnit3ImpairmentLossAndOtherRegulatoryDisallowances	0	usd
CY2022	evrg	Sibley Unit3 Impairment Loss And Other Regulatory Disallowances SibleyUnit3ImpairmentLossAndOtherRegulatoryDisallowances	34900000	usd
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CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	1267200000	usd
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CY2022	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	29900000	usd
CY2021	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	46300000	usd
CY2023	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	75100000	usd
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CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	47500000	usd
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CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	8200000	usd
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CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.84
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.17
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CY2022	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	3800000	usd
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-100000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	100000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-200000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	0	usd
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	500000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-4000000.0	usd
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	100000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	4900000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	9500000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	5400000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	748500000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	774500000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	897300000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	12300000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	12300000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	12200000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	736200000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	762200000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	885100000	usd
CY2023Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	27700000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	25200000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	24200000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	31400000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	256900000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	315300000	usd
CY2023Q4	us-gaap	Transfers Accounted For As Secured Borrowings Assets Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssetsCarryingAmount	342000000.0	usd
CY2022Q4	us-gaap	Transfers Accounted For As Secured Borrowings Assets Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssetsCarryingAmount	359000000.0	usd
CY2023Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	776200000	usd
CY2022Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	672900000	usd
CY2023Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	11500000	usd
CY2022Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	9300000	usd
CY2023Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	292100000	usd
CY2022Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	368000000.0	usd
CY2023Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	51300000	usd
CY2022Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	47800000	usd
CY2023Q4	us-gaap	Other Assets Current OtherAssetsCurrent	31400000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	44500000	usd
CY2023Q4	us-gaap	Assets Current AssetsCurrent	1789100000	usd
CY2022Q4	us-gaap	Assets Current AssetsCurrent	1842000000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	23595100000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	22136500000	usd
CY2023Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1795300000	usd
CY2022Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1846300000	usd
CY2023Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	766400000	usd
CY2022Q4	us-gaap	Decommissioning Fund Investments DecommissioningFundInvestments	653300000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	2336600000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	2336600000	usd
CY2023Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	560000000.0	usd
CY2022Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	534500000	usd
CY2023Q4	us-gaap	Regulated Entity Other Assets Noncurrent RegulatedEntityOtherAssetsNoncurrent	5458300000	usd
CY2022Q4	us-gaap	Regulated Entity Other Assets Noncurrent RegulatedEntityOtherAssetsNoncurrent	5370700000	usd
CY2023Q4	us-gaap	Assets Assets	30976100000	usd
CY2022Q4	us-gaap	Assets Assets	29489900000	usd
CY2023Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	800000000.0	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	439100000	usd
CY2023Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	951800000	usd
CY2022Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	1332300000	usd
CY2023Q4	us-gaap	Transfers Accounted For As Secured Borrowings Associated Liabilities Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssociatedLiabilitiesCarryingAmount	342000000.0	usd
CY2022Q4	us-gaap	Transfers Accounted For As Secured Borrowings Associated Liabilities Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssociatedLiabilitiesCarryingAmount	359000000.0	usd
CY2023Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	616900000	usd
CY2022Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	600800000	usd
CY2023Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	156700000	usd
CY2022Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	163000000.0	usd
CY2023Q4	us-gaap	Interest Payable Current InterestPayableCurrent	134200000	usd
CY2022Q4	us-gaap	Interest Payable Current InterestPayableCurrent	124300000	usd
CY2023Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	183000000.0	usd
CY2022Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	155400000	usd
CY2023Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	40300000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	40400000	usd
CY2023Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	74500000	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	81100000	usd
CY2023Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	213200000	usd
CY2022Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	198400000	usd
CY2023Q4	us-gaap	Liabilities Current LiabilitiesCurrent	3512600000	usd
CY2022Q4	us-gaap	Liabilities Current LiabilitiesCurrent	3493800000	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	11053300000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	9905700000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	2097900000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	1996600000	usd
CY2023Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	170000000.0	usd
CY2022Q4	us-gaap	Accumulated Deferred Investment Tax Credit AccumulatedDeferredInvestmentTaxCredit	174600000	usd
CY2023Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	2542500000	usd
CY2022Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	2566800000	usd
CY2023Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	464100000	usd
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	458400000	usd
CY2023Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	1162800000	usd
CY2022Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	1112800000	usd
CY2023Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	287900000	usd
CY2022Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	287900000	usd
CY2023Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	17778500000	usd
CY2022Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	16502800000	usd
CY2023Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	600000000	shares
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	600000000	shares
CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	229729296	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	229546105	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	7234900000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	7219700000	usd
CY2023Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2457800000	usd
CY2022Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2298500000	usd
CY2023Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-29600000	usd
CY2022Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-34500000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	9663100000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	9483700000	usd
CY2023Q4	us-gaap	Minority Interest MinorityInterest	21900000	usd
CY2022Q4	us-gaap	Minority Interest MinorityInterest	9600000	usd
CY2023Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9685000000	usd
CY2022Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9493300000	usd
CY2023Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	30976100000	usd
CY2022Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	29489900000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	743600000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	765000000.0	usd
CY2021	us-gaap	Profit Loss ProfitLoss	891900000	usd
CY2023	us-gaap	Depreciation And Amortization DepreciationAndAmortization	1076500000	usd
CY2022	us-gaap	Depreciation And Amortization DepreciationAndAmortization	929400000	usd
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	896400000	usd
CY2023	evrg	Amortization Of Nuclear Fuel AmortizationOfNuclearFuel	62400000	usd
CY2022	evrg	Amortization Of Nuclear Fuel AmortizationOfNuclearFuel	55500000	usd
CY2021	evrg	Amortization Of Nuclear Fuel AmortizationOfNuclearFuel	51400000	usd
CY2023	evrg	Amortization Of Deferred Refueling Outage Costs AmortizationOfDeferredRefuelingOutageCosts	18200000	usd
CY2022	evrg	Amortization Of Deferred Refueling Outage Costs AmortizationOfDeferredRefuelingOutageCosts	22300000	usd
CY2021	evrg	Amortization Of Deferred Refueling Outage Costs AmortizationOfDeferredRefuelingOutageCosts	25100000	usd
CY2023	evrg	Amortization Of Corporate Owned Life Insurance AmortizationOfCorporateOwnedLifeInsurance	25100000	usd
CY2022	evrg	Amortization Of Corporate Owned Life Insurance AmortizationOfCorporateOwnedLifeInsurance	25000000.0	usd
CY2021	evrg	Amortization Of Corporate Owned Life Insurance AmortizationOfCorporateOwnedLifeInsurance	24100000	usd
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	17700000	usd
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	18800000	usd
CY2023	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-16600000	usd
CY2021	us-gaap	Increase Decrease In Allowance For Equity Funds Used During Construction IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction	29400000	usd
CY2023	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	7400000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	7300000	usd
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	8200000	usd
CY2023	evrg	Income From Corporate Owned Life Insurance IncomeFromCorporateOwnedLifeInsurance	30000000.0	usd
CY2022	evrg	Income From Corporate Owned Life Insurance IncomeFromCorporateOwnedLifeInsurance	5600000	usd
CY2021	evrg	Income From Corporate Owned Life Insurance IncomeFromCorporateOwnedLifeInsurance	14200000	usd
CY2023	evrg	Sibley Unit3 Impairment Loss And Other Regulatory Disallowances SibleyUnit3ImpairmentLossAndOtherRegulatoryDisallowances	0	usd
CY2022	evrg	Sibley Unit3 Impairment Loss And Other Regulatory Disallowances SibleyUnit3ImpairmentLossAndOtherRegulatoryDisallowances	34900000	usd
CY2021	evrg	Sibley Unit3 Impairment Loss And Other Regulatory Disallowances SibleyUnit3ImpairmentLossAndOtherRegulatoryDisallowances	0	usd
CY2023	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-1500000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-69900000	usd
CY2022	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	7300000	usd
CY2022	us-gaap	Increase Decrease In Allowance For Equity Funds Used During Construction IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction	22500000	usd
CY2023	evrg	Payments For Asset Retirement Obligations PaymentsForAssetRetirementObligations	21800000	usd
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	3100000	usd
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	299800000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-47200000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	2100000	usd
CY2022	evrg	Increase Decrease In Accounts Receivable Pledged As Collateral IncreaseDecreaseInAccountsReceivablePledgedAsCollateral	40000000.0	usd
CY2021	evrg	Increase Decrease In Accounts Receivable Pledged As Collateral IncreaseDecreaseInAccountsReceivablePledgedAsCollateral	-41000000.0	usd
CY2023	evrg	Increase Decrease In Energy Related Inventory IncreaseDecreaseInEnergyRelatedInventory	102400000	usd
CY2022	evrg	Increase Decrease In Energy Related Inventory IncreaseDecreaseInEnergyRelatedInventory	105600000	usd
CY2021	evrg	Increase Decrease In Energy Related Inventory IncreaseDecreaseInEnergyRelatedInventory	61600000	usd
CY2023	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-136600000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-55100000	usd
CY2023	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-8600000	usd
CY2022	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	32200000	usd
CY2021	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	41400000	usd
CY2023	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-43800000	usd
CY2022	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	800000	usd
CY2021	us-gaap	Increase Decrease In Other Current Liabilities IncreaseDecreaseInOtherCurrentLiabilities	-19400000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-21700000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-81000000.0	usd
CY2021	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	251500000	usd
CY2023	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	94000000.0	usd
CY2022	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	83800000	usd
CY2021	us-gaap	Increase Decrease In Other Noncurrent Liabilities IncreaseDecreaseInOtherNoncurrentLiabilities	-31700000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1980200000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1801900000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1351700000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2334000000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2166500000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1972500000	usd
CY2023	evrg	Payments To Acquire Persimmon Creek Wind Farm1 Llc Net Of Cash Acquired PaymentsToAcquirePersimmonCreekWindFarm1LLCNetOfCashAcquired	217900000	usd
CY2022	evrg	Payments To Acquire Persimmon Creek Wind Farm1 Llc Net Of Cash Acquired PaymentsToAcquirePersimmonCreekWindFarm1LLCNetOfCashAcquired	0	usd
CY2021	evrg	Payments To Acquire Persimmon Creek Wind Farm1 Llc Net Of Cash Acquired PaymentsToAcquirePersimmonCreekWindFarm1LLCNetOfCashAcquired	0	usd
CY2023	us-gaap	Payments To Invest In Decommissioning Fund PaymentsToInvestInDecommissioningFund	58700000	usd
CY2022	us-gaap	Payments To Invest In Decommissioning Fund PaymentsToInvestInDecommissioningFund	50500000	usd
CY2021	us-gaap	Payments To Invest In Decommissioning Fund PaymentsToInvestInDecommissioningFund	158200000	usd
CY2023	us-gaap	Proceeds From Decommissioning Fund ProceedsFromDecommissioningFund	35100000	usd
CY2022	us-gaap	Proceeds From Decommissioning Fund ProceedsFromDecommissioningFund	27300000	usd
CY2021	us-gaap	Proceeds From Decommissioning Fund ProceedsFromDecommissioningFund	115700000	usd
CY2023	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	16000000.0	usd
CY2022	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	16500000	usd
CY2021	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	14200000	usd
CY2023	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	118700000	usd
CY2022	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	35200000	usd
CY2021	us-gaap	Proceeds From Life Insurance Policies ProceedsFromLifeInsurancePolicies	77000000.0	usd
CY2023	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-1100000	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-18800000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-38400000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2471700000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2152200000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1913800000	usd
CY2023	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-381900000	usd
CY2022	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	172900000	usd
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	840500000	usd
CY2023	evrg	Proceeds From Term Loan Facility ProceedsFromTermLoanFacility	0	usd
CY2022	evrg	Proceeds From Term Loan Facility ProceedsFromTermLoanFacility	500000000.0	usd
CY2021	evrg	Proceeds From Term Loan Facility ProceedsFromTermLoanFacility	0	usd
CY2023	evrg	Repayment Of Term Loan Facility RepaymentOfTermLoanFacility	500000000.0	usd
CY2022	evrg	Repayment Of Term Loan Facility RepaymentOfTermLoanFacility	0	usd
CY2021	evrg	Repayment Of Term Loan Facility RepaymentOfTermLoanFacility	0	usd
CY2023	evrg	Proceeds From Payments For Issuance Of Collateralized Debt Net ProceedsFromPaymentsForIssuanceOfCollateralizedDebtNet	-17000000.0	usd
CY2022	evrg	Proceeds From Payments For Issuance Of Collateralized Debt Net ProceedsFromPaymentsForIssuanceOfCollateralizedDebtNet	40000000.0	usd
CY2021	evrg	Proceeds From Payments For Issuance Of Collateralized Debt Net ProceedsFromPaymentsForIssuanceOfCollateralizedDebtNet	-41000000.0	usd
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	112500000	usd
CY2023	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2444800000	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	567700000	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	497300000	usd
CY2023	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	439500000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	410900000	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	432000000.0	usd
CY2023	evrg	Retirementsof Long Term Debt Of Vi Es RetirementsofLongTermDebtOfVIEs	0	usd
CY2022	evrg	Retirementsof Long Term Debt Of Vi Es RetirementsofLongTermDebtOfVIEs	0	usd
CY2021	evrg	Retirementsof Long Term Debt Of Vi Es RetirementsofLongTermDebtOfVIEs	18800000	usd
CY2023	evrg	Proceeds From Borrowings Against Corporate Owned Life Insurance ProceedsFromBorrowingsAgainstCorporateOwnedLifeInsurance	53200000	usd
CY2022	evrg	Proceeds From Borrowings Against Corporate Owned Life Insurance ProceedsFromBorrowingsAgainstCorporateOwnedLifeInsurance	53500000	usd
CY2021	evrg	Proceeds From Borrowings Against Corporate Owned Life Insurance ProceedsFromBorrowingsAgainstCorporateOwnedLifeInsurance	54400000	usd
CY2023	evrg	Repayments Of Borrowings Against Corporate Owned Life Insurance RepaymentsOfBorrowingsAgainstCorporateOwnedLifeInsurance	89800000	usd
CY2022	evrg	Repayments Of Borrowings Against Corporate Owned Life Insurance RepaymentsOfBorrowingsAgainstCorporateOwnedLifeInsurance	28000000.0	usd
CY2021	evrg	Repayments Of Borrowings Against Corporate Owned Life Insurance RepaymentsOfBorrowingsAgainstCorporateOwnedLifeInsurance	62300000	usd
CY2023	us-gaap	Payments Of Dividends PaymentsOfDividends	569600000	usd
CY2022	us-gaap	Payments Of Dividends PaymentsOfDividends	534800000	usd
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	497900000	usd
CY2023	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-6200000	usd
CY2022	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-11100000	usd
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-9300000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	494000000.0	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	349300000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	443400000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	2500000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1000000.0	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-118700000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	25200000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	26200000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	144900000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	27700000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	25200000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	26200000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	891900000	usd
CY2021	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	112500000	usd
CY2021	evrg	Stock Issued During Period Value Dividend Reinvestment Plan And Share Based Compensation Net StockIssuedDuringPeriodValueDividendReinvestmentPlanAndShareBasedCompensationNet	2400000	usd
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	2900000	usd
CY2021	evrg	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Issuance AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsIssuance	-2900000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	1800000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	5500000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	100000	usd
CY2021	us-gaap	Stockholders Equity Other StockholdersEquityOther	200000	usd
CY2021Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	9241700000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	765000000.0	usd
CY2022	evrg	Stock Issued During Period Value Dividend Reinvestment Plan And Share Based Compensation Net StockIssuedDuringPeriodValueDividendReinvestmentPlanAndShareBasedCompensationNet	5200000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.33
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	534800000	usd
CY2022	us-gaap	Dividends Share Based Compensation DividendsShareBasedCompensation	2300000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	18100000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	700000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	5500000	usd
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.178
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-4000000.0	usd
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	500000	usd
CY2022	evrg	Other Regulatory Disallowances OtherRegulatoryDisallowances	5500000	usd
CY2021	evrg	Other Regulatory Disallowances OtherRegulatoryDisallowances	0	usd
CY2023Q4	evrg	Owned Generating Capacity And Renewable Purchased Power OwnedGeneratingCapacityAndRenewablePurchasedPower	15600	mw
CY2023	evrg	Number Of Customers Served NumberOfCustomersServed	1700000	customer
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Use of Estimates </span></div><div style="margin-bottom:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">The process of preparing financial statements in conformity with generally accepted accounting principles (GAAP) requires the use of estimates and assumptions that affect the reported amounts of certain types of assets, liabilities, revenues and expenses. Such estimates primarily relate to unsettled transactions and events as of the date of the financial statements. Accordingly, upon settlement, actual results may differ from estimated amounts.</span></div>
CY2023Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	257300000	usd
CY2022Q4	us-gaap	Energy Related Inventory Coal EnergyRelatedInventoryCoal	180700000	usd
CY2023Q4	evrg	Energy Related Inventory Supplies EnergyRelatedInventorySupplies	518900000	usd
CY2022Q4	evrg	Energy Related Inventory Supplies EnergyRelatedInventorySupplies	492200000	usd
CY2023Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	776200000	usd
CY2022Q4	us-gaap	Energy Related Inventory EnergyRelatedInventory	672900000	usd
CY2023	evrg	Allowance For Borrowed Funds Used During Construction AllowanceForBorrowedFundsUsedDuringConstruction	39300000	usd
CY2022	evrg	Allowance For Borrowed Funds Used During Construction AllowanceForBorrowedFundsUsedDuringConstruction	15800000	usd
CY2021	evrg	Allowance For Borrowed Funds Used During Construction AllowanceForBorrowedFundsUsedDuringConstruction	14700000	usd
CY2023	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	10800000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	22500000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	29400000	usd
CY2023	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	50100000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	38300000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Additions PublicUtilitiesAllowanceForFundsUsedDuringConstructionAdditions	44100000	usd
CY2023	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.03
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	26700000	usd
CY2023	evrg	Non Service Cost Component Of Net Benefit Cost NonServiceCostComponentOfNetBenefitCost	51200000	usd
CY2022	evrg	Non Service Cost Component Of Net Benefit Cost NonServiceCostComponentOfNetBenefitCost	62900000	usd
CY2023	evrg	Other Nonoperating Income Expense Other OtherNonoperatingIncomeExpenseOther	-23900000	usd
CY2022	evrg	Other Nonoperating Income Expense Other OtherNonoperatingIncomeExpenseOther	-34400000	usd
CY2021	evrg	Other Nonoperating Income Expense Other OtherNonoperatingIncomeExpenseOther	-31800000	usd
CY2023	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	75100000	usd
CY2023Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	1349900000	usd
CY2022Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	1387400000	usd
CY2023Q4	evrg	Corporate Owned Life Insurance Borrowings CorporateOwnedLifeInsuranceBorrowings	1221100000	usd
CY2022Q4	evrg	Corporate Owned Life Insurance Borrowings CorporateOwnedLifeInsuranceBorrowings	1256600000	usd
CY2023Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	128800000	usd
CY2022Q4	us-gaap	Life Insurance Corporate Or Bank Owned Amount LifeInsuranceCorporateOrBankOwnedAmount	130800000	usd
CY2023	us-gaap	Financing Receivable Allowance For Credit Losses Policy For Uncollectible Amounts FinancingReceivableAllowanceForCreditLossesPolicyForUncollectibleAmounts	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Allowance for Credit Losses </span></div><div style="margin-bottom:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Historical loss information generally provides the basis for the Evergy Companies' assessment of expected credit losses. The Evergy Companies use an aging of accounts receivable method to assess historical loss information. When historical experience may not fully reflect the Evergy Companies' expectations about the future, the Evergy Companies will adjust historical loss information, as necessary, to reflect the current conditions and reasonable and supportable forecasts not already reflected in the historical loss information.</span></div><div style="margin-bottom:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Receivables are charged off when they are deemed uncollectible, which is based on a number of factors including specific facts surrounding an account and management's judgment.</span></div>
CY2022	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	97300000	usd
CY2021	us-gaap	Other Nonoperating Expense OtherNonoperatingExpense	87400000	usd
CY2023	us-gaap	Profit Loss ProfitLoss	743600000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	765000000.0	usd
CY2021	us-gaap	Profit Loss ProfitLoss	891900000	usd
CY2023	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	12300000	usd
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	12300000	usd
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	12200000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	731300000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	752700000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	879700000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	230000000.0	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	229900000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	229000000.0	shares
CY2023	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	500000	shares
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	400000	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	600000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	230500000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	230300000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	229600000	shares
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.18
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.27
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.84
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.17
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.27
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.83
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2023	us-gaap	Interest Paid Net InterestPaidNet	500900000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	393700000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	356900000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	34400000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	21600000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-19600000	usd
CY2023	evrg	Non Cash Property Plant And Equipment Additions Gross NonCashPropertyPlantAndEquipmentAdditionsGross	251300000	usd
CY2022	evrg	Non Cash Property Plant And Equipment Additions Gross NonCashPropertyPlantAndEquipmentAdditionsGross	354700000	usd
CY2021	evrg	Non Cash Property Plant And Equipment Additions Gross NonCashPropertyPlantAndEquipmentAdditionsGross	269300000	usd
CY2021Q1	evrg	Increase Of Natural Gas And Purchased Power Costs Net Increase In Wholesale Revenues IncreaseOfNaturalGasAndPurchasedPowerCostsNetIncreaseInWholesaleRevenues	367900000	usd
CY2021Q1	evrg	Increase Of Natural Gas And Purchased Power Costs Net Increase In Wholesale Revenues IncreaseOfNaturalGasAndPurchasedPowerCostsNetIncreaseInWholesaleRevenues	367900000	usd
CY2022	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	15100000	usd
CY2022	evrg	Equity Investment Gain Loss Net Of Derivative Gain Loss EquityInvestmentGainLossNetOfDerivativeGainLoss	-16300000	usd
CY2023Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	2725500000	usd
CY2022Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	2722200000	usd
CY2023Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	183000000.0	usd
CY2022Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	155400000	usd
CY2023Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	2542500000	usd
CY2022Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	2566800000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	5345100000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	5589200000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	5329100000	usd
CY2023	evrg	Other Revenue OtherRevenue	163100000	usd
CY2022	evrg	Other Revenue OtherRevenue	269900000	usd
CY2021	evrg	Other Revenue OtherRevenue	257600000	usd
CY2023	us-gaap	Revenues Revenues	5508200000	usd
CY2022	us-gaap	Revenues Revenues	5859100000	usd
CY2021	us-gaap	Revenues Revenues	5586700000	usd
CY2023Q4	us-gaap	Other Receivables Gross Current OtherReceivablesGrossCurrent	169400000	usd
CY2022Q4	us-gaap	Other Receivables Gross Current OtherReceivablesGrossCurrent	200900000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	24200000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	31400000	usd
CY2023Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	256900000	usd
CY2022Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	315300000	usd
CY2023Q4	evrg	Other Receivables Contracts With Customers OtherReceivablesContractsWithCustomers	61500000	usd
CY2022Q4	evrg	Other Receivables Contracts With Customers OtherReceivablesContractsWithCustomers	113000000.0	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	31400000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	32900000	usd
CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	15400000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	16100000	usd
CY2023	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	33300000	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	28800000	usd
CY2023	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	10700000	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	11200000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	24200000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	31400000	usd
CY2023Q4	us-gaap	Transfers Accounted For As Secured Borrowings Assets Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssetsCarryingAmount	342000000.0	usd
CY2022Q4	us-gaap	Transfers Accounted For As Secured Borrowings Assets Carrying Amount TransfersAccountedForAsSecuredBorrowingsAssetsCarryingAmount	359000000.0	usd
CY2023Q4	us-gaap	Debt Instrument Interest Rate Stated Percentage DebtInstrumentInterestRateStatedPercentage	0.0506
CY2023Q4	us-gaap	Regulatory Assets RegulatoryAssets	2087400000	usd
CY2022Q4	us-gaap	Regulatory Assets RegulatoryAssets	2214300000	usd
CY2023Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	292100000	usd
CY2022Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	368000000.0	usd
CY2023Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1795300000	usd
CY2022Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1846300000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	2336600000	usd
CY2023	us-gaap	Number Of Reporting Units NumberOfReportingUnits	1	reporting_unit
CY2023	evrg	Increase Decrease In Aro Resulting From Decommissioning Study IncreaseDecreaseInAROResultingFromDecommissioningStudy	3200000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1153200000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	960100000	usd
CY2023	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	9700000	usd
CY2022	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	0	usd
CY2023	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	3200000	usd
CY2022	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	161800000	usd
CY2023	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	21800000	usd
CY2022	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	13000000.0	usd
CY2023	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	58800000	usd
CY2022	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	44300000	usd
CY2023Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1203100000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1153200000	usd
CY2023Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	40300000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	40400000	usd
CY2023Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	1162800000	usd
CY2022Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	1112800000	usd
CY2023	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	9700000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	34166000000	usd
CY2023Q4	evrg	Property Plant And Equipment Adjustment PropertyPlantAndEquipmentAdjustment	724900000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	13043100000	usd
CY2023Q4	evrg	Public Utilities Property Plant And Equipment In Service Net PublicUtilitiesPropertyPlantAndEquipmentInServiceNet	21847800000	usd
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	25600000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	1543500000	usd
CY2023Q4	us-gaap	Nuclear Fuel Net Of Amortization NuclearFuelNetOfAmortization	203000000.0	usd
CY2023Q4	evrg	Plant To Be Retired Net PlantToBeRetiredNet	800000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	23595100000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	32129300000	usd
CY2022Q4	evrg	Property Plant And Equipment Adjustment PropertyPlantAndEquipmentAdjustment	724300000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	12304900000	usd
CY2022Q4	evrg	Public Utilities Property Plant And Equipment In Service Net PublicUtilitiesPropertyPlantAndEquipmentInServiceNet	20548700000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	1421200000	usd
CY2022Q4	us-gaap	Nuclear Fuel Net Of Amortization NuclearFuelNetOfAmortization	165800000	usd
CY2022Q4	evrg	Plant To Be Retired Net PlantToBeRetiredNet	800000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	22136500000	usd
CY2023	us-gaap	Depreciation Depreciation	943300000	usd
CY2022	us-gaap	Depreciation Depreciation	836100000	usd
CY2021	us-gaap	Depreciation Depreciation	813600000	usd
CY2023	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	24100000	usd
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	25300000	usd
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	17700000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	18800000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	15600000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1600000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2600000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	-100000	usd
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.24
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0422
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.0458
CY2023Q4	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	2500000000	usd
CY2023Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	1546500000	usd
CY2022Q4	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	2500000000	usd
CY2022Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	1167000000	usd
CY2023Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	800000000.0	usd
CY2023Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	106000000.0	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	11053300000	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	439100000	usd
CY2022Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	79600000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	9905700000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	800000000.0	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	636000000.0	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	429500000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	2021900000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0	usd
CY2021	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	95500000	usd
CY2023	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	85500000	usd
CY2022	us-gaap	Fair Value Assets Measured On Recurring Basis Change In Unrealized Gain Loss FairValueAssetsMeasuredOnRecurringBasisChangeInUnrealizedGainLoss	-145600000	usd
CY2023Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	12900000	usd
CY2023Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	29800000	usd
CY2023Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	11600000	usd
CY2023Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	33800000	usd
CY2022Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	25200000	usd
CY2022Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	25100000	usd
CY2022Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	25800000	usd
CY2022Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	26700000	usd
CY2023	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	22900000	usd
CY2022	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	84600000	usd
CY2021	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	117500000	usd
CY2023Q4	us-gaap	Credit Derivative Maximum Exposure Undiscounted CreditDerivativeMaximumExposureUndiscounted	36200000	usd
CY2023Q4	evrg	Credit Derivative Maximum Exposure After Master Netting And Collateral CreditDerivativeMaximumExposureAfterMasterNettingAndCollateral	29000000	usd
CY2023Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	34600000	usd
CY2023Q4	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	34300000	usd
CY2023Q4	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	1400000	usd
CY2022Q4	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	1500000	usd
CY2023Q4	evrg	Industry Aggregate Limit For Nuclear Insurance IndustryAggregateLimitForNuclearInsurance	3200000000	usd
CY2023Q4	evrg	Industry Aggregate Limit For Non Nuclear Insurance IndustryAggregateLimitForNonNuclearInsurance	1800000000	usd
CY2023Q4	evrg	Nuclear Liability Insurance Full Limit Of Public Liability NuclearLiabilityInsuranceFullLimitOfPublicLiability	16300000000	usd
CY2023Q4	evrg	Nuclear Liability Insurance Maximum Available Commercial Insurance NuclearLiabilityInsuranceMaximumAvailableCommercialInsurance	500000000	usd
CY2023Q4	evrg	Nuclear Liability Insurance Industry Wide Retrospective Assessment Program NuclearLiabilityInsuranceIndustryWideRetrospectiveAssessmentProgram	15800000000	usd
CY2023Q4	evrg	Nuclear Liability Insurance Owners Insurance Amount Maximum NuclearLiabilityInsuranceOwnersInsuranceAmountMaximum	165900000	usd
CY2023Q4	evrg	Nuclear Liability Insurance Owners Insurance Amount Per Incident NuclearLiabilityInsuranceOwnersInsuranceAmountPerIncident	24700000	usd
CY2023Q4	evrg	Nuclear Liability Insurance Owners Property Insurance Maximum NuclearLiabilityInsuranceOwnersPropertyInsuranceMaximum	2800000000	usd
CY2023Q4	evrg	Nuclear Liability Insurance Owners Nonnuclear Property Insurance Maximum NuclearLiabilityInsuranceOwnersNonnuclearPropertyInsuranceMaximum	2300000000	usd
CY2023Q4	evrg	Nuclear Liability Insurance Owners Property Insurance Assessment Maximum NuclearLiabilityInsuranceOwnersPropertyInsuranceAssessmentMaximum	29100000	usd
CY2023Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On First Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary	298500000	usd
CY2023Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Second Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary	242100000	usd
CY2023Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Third Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary	241700000	usd
CY2023Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fourth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary	151900000	usd
CY2023Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fifth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary	138800000	usd
CY2023Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Due After Five Years UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears	324100000	usd
CY2023Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance Sheet Amount UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount	1397100000	usd
CY2023Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	794000000	usd
CY2023Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	600000000	shares
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	12000000	shares
CY2021Q1	evrg	Stock To Be Sold And Issued Under Securities Purchase Agreement Shares StockToBeSoldAndIssuedUnderSecuritiesPurchaseAgreementShares	2269447	shares
CY2021Q1	evrg	Stock To Be Soldand Issued Under Securities Purchase Agreement Value StockToBeSoldandIssuedUnderSecuritiesPurchaseAgreementValue	113200000	usd
CY2021Q1	evrg	Warrant To Be Issued Under Securities Purchase Agreementfor Potential Shares Maximum WarrantToBeIssuedUnderSecuritiesPurchaseAgreementforPotentialSharesMaximum	3950000	shares
CY2021Q1	us-gaap	Class Of Warrant Or Right Exercise Price Of Warrants Or Rights1 ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1	64.70
CY2021Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	112500000	usd
CY2021Q2	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	700000	usd
CY2023Q4	evrg	Restrictionon Payment Of Dividends Minimum Ratio Of Equity To Capitalization RestrictiononPaymentOfDividendsMinimumRatioOfEquityToCapitalization	0.35
CY2023Q4	us-gaap	Amount Of Restricted Net Assets For Consolidated And Unconsolidated Subsidiaries AmountOfRestrictedNetAssetsForConsolidatedAndUnconsolidatedSubsidiaries	6300000000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	25300000	usd
CY2022	evrg	Effective Income Tax Rate Reconciliation Officer Compensation Limitation EffectiveIncomeTaxRateReconciliationOfficerCompensationLimitation	0.003
CY2021	evrg	Effective Income Tax Rate Reconciliation Officer Compensation Limitation EffectiveIncomeTaxRateReconciliationOfficerCompensationLimitation	0.005
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	31900000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	15600000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6900000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	8300000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-400000	usd
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	32200000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	40200000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	15200000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	10200000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	17200000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	92800000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-21700000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-3400000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	14700000	usd
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-11500000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	13800000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	107500000	usd
CY2023	evrg	Investment Tax Credit Deferral InvestmentTaxCreditDeferral	2200000	usd
CY2022	evrg	Investment Tax Credit Deferral InvestmentTaxCreditDeferral	0	usd
CY2021	evrg	Investment Tax Credit Deferral InvestmentTaxCreditDeferral	400000	usd
CY2023	evrg	Investment Tax Credit Amortization InvestmentTaxCreditAmortization	7300000	usd
CY2022	evrg	Investment Tax Credit Amortization InvestmentTaxCreditAmortization	6500000	usd
CY2021	evrg	Investment Tax Credit Amortization InvestmentTaxCreditAmortization	5700000	usd
CY2023	evrg	Investment Tax Credit Total Net InvestmentTaxCreditTotalNet	-5100000	usd
CY2022	evrg	Investment Tax Credit Total Net InvestmentTaxCreditTotalNet	-6500000	usd
CY2021	evrg	Investment Tax Credit Total Net InvestmentTaxCreditTotalNet	-5300000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	15600000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	47500000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	117400000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.019
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.012
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Life Insurance EffectiveIncomeTaxRateReconciliationNondeductibleExpenseLifeInsurance	0.010
CY2023	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	-0.019
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.003
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.010
CY2023	evrg	Effective Income Tax Rate Reconciliation Effect Of Regulatory Treatment Book Tax Differences EffectiveIncomeTaxRateReconciliationEffectOfRegulatoryTreatmentBookTaxDifferences	-0.080
CY2022	evrg	Effective Income Tax Rate Reconciliation Effect Of Regulatory Treatment Book Tax Differences EffectiveIncomeTaxRateReconciliationEffectOfRegulatoryTreatmentBookTaxDifferences	-0.084
CY2021	evrg	Effective Income Tax Rate Reconciliation Effect Of Regulatory Treatment Book Tax Differences EffectiveIncomeTaxRateReconciliationEffectOfRegulatoryTreatmentBookTaxDifferences	-0.054
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	0.062
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	0.040
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Other EffectiveIncomeTaxRateReconciliationTaxCreditsOther	0.028
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	0.003
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	0.003
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	0.003
CY2023	evrg	Effective Income Tax Rate Reconciliation Afudc Equity EffectiveIncomeTaxRateReconciliationAFUDCEquity	0.003
CY2022	evrg	Effective Income Tax Rate Reconciliation Afudc Equity EffectiveIncomeTaxRateReconciliationAFUDCEquity	0.006
CY2021	evrg	Effective Income Tax Rate Reconciliation Afudc Equity EffectiveIncomeTaxRateReconciliationAFUDCEquity	0.006
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.007
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.006
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Investment EffectiveIncomeTaxRateReconciliationTaxCreditsInvestment	0.004
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.004
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.002
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0
CY2023	evrg	Effective Income Tax Rate Reconciliation Officer Compensation Limitation EffectiveIncomeTaxRateReconciliationOfficerCompensationLimitation	0.003
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.004
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.005
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.004
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.020
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.058
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.116
CY2023Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	288900000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	311000000.0	usd
CY2023Q4	evrg	Deferred Tax Assets Income Taxes Refundable To Customers DeferredTaxAssetsIncomeTaxesRefundableToCustomers	289400000	usd
CY2022Q4	evrg	Deferred Tax Assets Income Taxes Refundable To Customers DeferredTaxAssetsIncomeTaxesRefundableToCustomers	311000000.0	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	101500000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	86200000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	22500000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards Domestic DeferredTaxAssetsOperatingLossCarryforwardsDomestic	31700000	usd
CY2023Q4	us-gaap	Deferred Tax Assets State Taxes DeferredTaxAssetsStateTaxes	141000000.0	usd
CY2022Q4	us-gaap	Deferred Tax Assets State Taxes DeferredTaxAssetsStateTaxes	145600000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	185900000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	169700000	usd
CY2023Q4	evrg	Deferred Tax Liabilities Other Regulatory Liabilities DeferredTaxLiabilitiesOtherRegulatoryLiabilities	-132000000.0	usd
CY2022Q4	evrg	Deferred Tax Liabilities Other Regulatory Liabilities DeferredTaxLiabilitiesOtherRegulatoryLiabilities	-116400000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	121700000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	131700000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1282900000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1303300000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	14800000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	12800000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1268100000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1290500000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2818400000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2770900000	usd
CY2023Q4	evrg	Deferred Tax Liabilities Employee Benefit Costs Net DeferredTaxLiabilitiesEmployeeBenefitCostsNet	11100000	usd
CY2022Q4	evrg	Deferred Tax Liabilities Employee Benefit Costs Net DeferredTaxLiabilitiesEmployeeBenefitCostsNet	8800000	usd
CY2023Q4	evrg	Deferred Tax Liabilities Acquisition Premium Net DeferredTaxLiabilitiesAcquisitionPremiumNet	159100000	usd
CY2022Q4	evrg	Deferred Tax Liabilities Acquisition Premium Net DeferredTaxLiabilitiesAcquisitionPremiumNet	144300000	usd
CY2023Q4	evrg	Deferred Tax Liabilities Asset Retirement Obligation Regulatory Asset DeferredTaxLiabilitiesAssetRetirementObligationRegulatoryAsset	37400000	usd
CY2022Q4	evrg	Deferred Tax Liabilities Asset Retirement Obligation Regulatory Asset DeferredTaxLiabilitiesAssetRetirementObligationRegulatoryAsset	40600000	usd
CY2023Q4	evrg	Deferred Tax Liabilities Other Regulatory Assets DeferredTaxLiabilitiesOtherRegulatoryAssets	231300000	usd
CY2022Q4	evrg	Deferred Tax Liabilities Other Regulatory Assets DeferredTaxLiabilitiesOtherRegulatoryAssets	195600000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	108700000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	126900000	usd
CY2023Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	3366000000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	3287100000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	2097900000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1996600000	usd
CY2023Q4	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	284100000	usd
CY2023Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	17200000	usd
CY2022Q4	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	25400000	usd
CY2023Q4	us-gaap	Operating Loss Carryforwards Valuation Allowance OperatingLossCarryforwardsValuationAllowance	7100000	usd
CY2023	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-2000000	usd
CY2023	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	6100000	usd
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	5300000	usd
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	5100000	usd
CY2023	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	2300000	usd
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	2400000	usd
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	2500000	usd
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	20500000	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	21900000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	21800000	usd
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	4000000.0	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	4900000	usd
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	5900000	usd
CY2023	us-gaap	Variable Lease Cost VariableLeaseCost	266500000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	318000000.0	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	280300000	usd
CY2023	us-gaap	Lease Cost LeaseCost	299400000	usd
CY2022	us-gaap	Lease Cost LeaseCost	352500000	usd
CY2021	us-gaap	Lease Cost LeaseCost	315600000	usd
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	20100000	usd
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	21100000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	20700000	usd
CY2023	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	2300000	usd
CY2022	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	2400000	usd
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	2600000	usd
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	6600000	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	5900000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	5300000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	20100000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	12200000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	16400000	usd
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	11900000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	7000000.0	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	1400000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	9300000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	8100000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	7800000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	7300000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	6700000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	35500000	usd
CY2023Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	74700000	usd
CY2023Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	20000000.0	usd
CY2023Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	54700000	usd
CY2023Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	7200000	usd
CY2023Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	47500000	usd
CY2023Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	323700000	usd
CY2023Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P11Y
CY2023Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.055
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	21500000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	15500000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	12100000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	9800000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	6300000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	18100000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	83300000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	11900000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	71400000	usd
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	18100000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	53300000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	71100000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y10M24D
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.032
CY2023Q4	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2023Q4	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
CY2023Q4	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2023	dei	Auditor Firm AuditorFirmId	34
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	15600000	usd
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8718500000	usd
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	102200000	usd
CY2023	us-gaap	Increase Decrease In Allowance For Equity Funds Used During Construction IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction	10800000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	13800000	usd

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evrg-20231231_cal.xml	Edgar Link	unprocessable

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$EVRG
Evergy, Inc. Stock $evrg

2024 Q1 Form 10-K Financial Statement

#000171126924000007 Filed on February 29, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EVRG Evergy, Inc. Stock $evrg

2024 Q1 Form 10-K Financial Statement

#000171126924000007 Filed on February 29, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$EVRG
Evergy, Inc. Stock $evrg