10-K Filing

EVERGY, INC. CIK: 1711269 FY 2019

Filing Information

Form Type	10-K
Accession Number	`0001711269-20-000012`
Period End Date	20191231
Filing Date	20200302
Fiscal Year	2019
Fiscal Period	FY
XBRL Instance	evrg-12312019x10k_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 88 Income Statement 89 Cash Flow Statement 158 Stockholders Equity 47 Comprehensive Income 152

Balance Sheet 88 line items

Line Item	Tag	Value	Unit	Period
Common stock - shares authorized (in shares)	`CommonStockSharesAuthorized`	600.00M	shares	Point-in-time
Common stock - shares authorized (in shares)	`CommonStockSharesAuthorized`	600.00M	shares	Point-in-time
Common stock - shares issued (in shares)	`CommonStockSharesIssued`	255.33M	shares	Point-in-time
Common stock - shares issued (in shares)	`CommonStockSharesIssued`	226.64M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$23.20M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$160.30M	USD	Point-in-time
Receivables, net	`ReceivablesNetCurrent`	$228.50M	USD	Point-in-time
Receivables, net	`ReceivablesNetCurrent`	$193.70M	USD	Point-in-time
Accounts receivable pledged as collateral	`TransfersAccountedForAsSecuredBorrowingsAssetsCarryingAmount`	$339.00M	USD	Point-in-time
Accounts receivable pledged as collateral	`TransfersAccountedForAsSecuredBorrowingsAssetsCarryingAmount`	$365.00M	USD	Point-in-time
Fuel inventory and supplies	`EnergyRelatedInventory`	$481.60M	USD	Point-in-time
Fuel inventory and supplies	`EnergyRelatedInventory`	$511.00M	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	$68.00M	USD	Point-in-time
Income taxes receivable	`IncomeTaxesReceivable`	$85.50M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$231.70M	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsCurrent`	$303.90M	USD	Point-in-time
Prepaid expenses and other assets	`PrepaidExpenseAndOtherAssetsCurrent`	$79.10M	USD	Point-in-time
Prepaid expenses and other assets	`PrepaidExpenseAndOtherAssetsCurrent`	$78.20M	USD	Point-in-time
Total Current Assets	`AssetsCurrent`	$1.68B	USD	Point-in-time
Total Current Assets	`AssetsCurrent`	$1.47B	USD	Point-in-time
PROPERTY, PLANT AND EQUIPMENT, NET	`PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetbeforeAccumulatedDepreciationandAmortization`	$19.18B	USD	Point-in-time
PROPERTY, PLANT AND EQUIPMENT, NET	`PropertyPlantandEquipmentandFinanceLeaseRightofUseAssetbeforeAccumulatedDepreciationandAmortization`	$18.78B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$1.74B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$1.76B	USD	Point-in-time
Nuclear decommissioning trust fund	`DecommissioningFundInvestments`	$472.10M	USD	Point-in-time
Nuclear decommissioning trust fund	`DecommissioningFundInvestments`	$573.20M	USD	Point-in-time
Goodwill	`Goodwill`	$2.34B	USD	Point-in-time
Goodwill	`Goodwill`	$2.34B	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$511.50M	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$396.50M	USD	Point-in-time
Total Other Assets	`AssetsNoncurrent`	$4.97B	USD	Point-in-time
Total Other Assets	`AssetsNoncurrent`	$5.16B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$25.98B	USD	Point-in-time
TOTAL ASSETS	`Assets`	$25.60B	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$251.10M	USD	Point-in-time
Current maturities of long-term debt	`LongTermDebtCurrent`	$705.40M	USD	Point-in-time
Notes payable and commercial paper	`ShortTermBankLoansAndNotesPayable`	$738.60M	USD	Point-in-time
Notes payable and commercial paper	`ShortTermBankLoansAndNotesPayable`	$561.90M	USD	Point-in-time
Collateralized note payable	`TransfersAccountedForAsSecuredBorrowingsAssociatedLiabilitiesCarryingAmount`	$339.00M	USD	Point-in-time
Collateralized note payable	`TransfersAccountedForAsSecuredBorrowingsAssociatedLiabilitiesCarryingAmount`	$365.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$451.50M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$528.80M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$133.60M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$145.10M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$122.30M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$110.90M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$110.20M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityCurrent`	$63.30M	USD	Point-in-time
Asset retirement obligations	`AssetRetirementObligationCurrent`	$71.30M	USD	Point-in-time
Asset retirement obligations	`AssetRetirementObligationCurrent`	$49.80M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$171.90M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$220.80M	USD	Point-in-time
Total Current Liabilities	`LiabilitiesCurrent`	$2.87B	USD	Point-in-time
Total Current Liabilities	`LiabilitiesCurrent`	$2.34B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$8.75B	USD	Point-in-time
Long-term debt, net	`LongTermDebtNoncurrent`	$6.64B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.60B	USD	Point-in-time
Deferred income taxes	`DeferredIncomeTaxLiabilitiesNet`	$1.74B	USD	Point-in-time
Unamortized investment tax credits	`AccumulatedDeferredInvestmentTaxCredit`	$373.20M	USD	Point-in-time
Unamortized investment tax credits	`AccumulatedDeferredInvestmentTaxCredit`	$375.40M	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$2.25B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$2.22B	USD	Point-in-time
Pension and post-retirement liability	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$987.60M	USD	Point-in-time
Pension and post-retirement liability	`PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent`	$1.02B	USD	Point-in-time
Total noncurrent asset retirement obligation	`AssetRetirementObligationsNoncurrent`	$637.30M	USD	Point-in-time
Total noncurrent asset retirement obligation	`AssetRetirementObligationsNoncurrent`	$602.80M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$340.70M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$236.70M	USD	Point-in-time
Total Long-Term Liabilities	`LiabilitiesNoncurrent`	$15.09B	USD	Point-in-time
Total Long-Term Liabilities	`LiabilitiesNoncurrent`	$12.74B	USD	Point-in-time
Commitments and Contingencies (Note 15)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and Contingencies (Note 15)	`CommitmentsAndContingencies`	-	USD	Point-in-time
Common stock - 600,000,000 shares authorized, without par value 226,641,443 and 255,326,252 shares issued, stated value	`CommonStockValue`	$7.07B	USD	Point-in-time
Common stock - 600,000,000 shares authorized, without par value 226,641,443 and 255,326,252 shares issued, stated value	`CommonStockValue`	$8.69B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.35B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.55B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-50.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-3.00M	USD	Point-in-time
Total Evergy, Inc. Shareholders' Equity	`StockholdersEquity`	$10.03B	USD	Point-in-time
Total Evergy, Inc. Shareholders' Equity	`StockholdersEquity`	$8.57B	USD	Point-in-time
Noncontrolling Interests	`MinorityInterest`	$-26.60M	USD	Point-in-time
Noncontrolling Interests	`MinorityInterest`	$-37.50M	USD	Point-in-time
Total Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.86B	USD	Point-in-time
Total Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$9.99B	USD	Point-in-time
Total Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.83B	USD	Point-in-time
Total Equity	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.55B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$25.98B	USD	Point-in-time
TOTAL LIABILITIES AND EQUITY	`LiabilitiesAndStockholdersEquity`	$25.60B	USD	Point-in-time

Income Statement 89 line items

Line Item	Tag	Value	Unit	Period
OPERATING REVENUES	`Revenues`	$1.58B	USD	1 Quarter
OPERATING REVENUES	`Revenues`	$600.20M	USD	1 Quarter
OPERATING REVENUES	`Revenues`	$4.28B	USD	Annual
OPERATING REVENUES	`Revenues`	$1.58B	USD	1 Quarter
OPERATING REVENUES	`Revenues`	$2.57B	USD	Annual
OPERATING REVENUES	`Revenues`	$1.22B	USD	1 Quarter
OPERATING REVENUES	`Revenues`	$5.15B	USD	Annual
OPERATING REVENUES	`Revenues`	$1.13B	USD	1 Quarter
OPERATING REVENUES	`Revenues`	$1.20B	USD	1 Quarter
OPERATING REVENUES	`Revenues`	$1.22B	USD	1 Quarter
OPERATING REVENUES	`Revenues`	$893.40M	USD	1 Quarter
Fuel and purchased power	`FuelAndPurchasedPower`	$541.50M	USD	Annual
Fuel and purchased power	`FuelAndPurchasedPower`	$1.26B	USD	Annual
Fuel and purchased power	`FuelAndPurchasedPower`	$1.08B	USD	Annual
SPP network transmission costs	`SPPNetworkTransmissionCosts`	$259.90M	USD	Annual
SPP network transmission costs	`SPPNetworkTransmissionCosts`	$247.90M	USD	Annual
SPP network transmission costs	`SPPNetworkTransmissionCosts`	$251.30M	USD	Annual
Operating and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.22B	USD	Annual
Operating and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.12B	USD	Annual
Operating and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$563.50M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$371.70M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$861.70M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$618.80M	USD	Annual
Taxes other than income tax	`TaxesExcludingIncomeAndExciseTaxes`	$365.50M	USD	Annual
Taxes other than income tax	`TaxesExcludingIncomeAndExciseTaxes`	$167.60M	USD	Annual
Taxes other than income tax	`TaxesExcludingIncomeAndExciseTaxes`	$269.10M	USD	Annual
Total Operating Expenses	`CostsAndExpenses`	$3.96B	USD	Annual
Total Operating Expenses	`CostsAndExpenses`	$3.34B	USD	Annual
Total Operating Expenses	`CostsAndExpenses`	$1.89B	USD	Annual
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$209.60M	USD	1 Quarter
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$123.50M	USD	1 Quarter
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$271.70M	USD	1 Quarter
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$933.60M	USD	Annual
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$165.80M	USD	1 Quarter
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$150.10M	USD	1 Quarter
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$1.19B	USD	Annual
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$678.80M	USD	Annual
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$533.10M	USD	1 Quarter
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$538.70M	USD	1 Quarter
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$126.90M	USD	1 Quarter
Investment earnings (loss)	`GainLossOnInvestments`	$11.00M	USD	Annual
Investment earnings (loss)	`GainLossOnInvestments`	$4.00M	USD	Annual
Investment earnings (loss)	`GainLossOnInvestments`	$8.80M	USD	Annual
Other income	`OtherNonoperatingIncome`	$15.50M	USD	Annual
Other income	`OtherNonoperatingIncome`	$8.30M	USD	Annual
Other income	`OtherNonoperatingIncome`	$26.90M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$76.90M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$78.70M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$39.10M	USD	Annual
Total Other Expense, Net	`NonoperatingIncomeExpense`	$-54.40M	USD	Annual
Total Other Expense, Net	`NonoperatingIncomeExpense`	$-39.00M	USD	Annual
Total Other Expense, Net	`NonoperatingIncomeExpense`	$-26.80M	USD	Annual
Interest expense	`InterestExpense`	$171.00M	USD	Annual
Interest expense	`InterestExpense`	$279.60M	USD	Annual
Interest expense	`InterestExpense`	$374.00M	USD	Annual
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$772.80M	USD	Annual
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$481.00M	USD	Annual
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$599.60M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$151.20M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$97.00M	USD	Annual
Income tax expense (benefit)	`IncomeTaxExpenseBenefit`	$59.00M	USD	Annual
Equity in earnings of equity method investees, net of income taxes	`IncomeLossFromEquityMethodInvestments`	$5.40M	USD	Annual
Equity in earnings of equity method investees, net of income taxes	`IncomeLossFromEquityMethodInvestments`	$9.80M	USD	Annual
Equity in earnings of equity method investees, net of income taxes	`IncomeLossFromEquityMethodInvestments`	$6.70M	USD	Annual
NET INCOME	`ProfitLoss`	$62.90M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$546.00M	USD	Annual
NET INCOME	`ProfitLoss`	$370.90M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$357.60M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$685.60M	USD	Annual
NET INCOME	`ProfitLoss`	$21.10M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$66.70M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$144.60M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$103.40M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$104.40M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$336.50M	USD	Annual
Less: Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$10.20M	USD	Annual
Less: Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$15.70M	USD	Annual
Less: Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.60M	USD	Annual
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$669.90M	USD	Annual
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$99.50M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$18.50M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$63.90M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$139.70M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$60.50M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$535.80M	USD	Annual
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$366.80M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$355.00M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$101.80M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$323.90M	USD	Annual

Cash Flow Statement 158 line items

Line Item	Tag	Value	Unit	Period
Net income	`ProfitLoss`	$62.90M	USD	1 Quarter
Net income	`ProfitLoss`	$546.00M	USD	Annual
Net income	`ProfitLoss`	$370.90M	USD	1 Quarter
Net income	`ProfitLoss`	$357.60M	USD	1 Quarter
Net income	`ProfitLoss`	$685.60M	USD	Annual
Net income	`ProfitLoss`	$21.10M	USD	1 Quarter
Net income	`ProfitLoss`	$66.70M	USD	1 Quarter
Net income	`ProfitLoss`	$144.60M	USD	1 Quarter
Net income	`ProfitLoss`	$103.40M	USD	1 Quarter
Net income	`ProfitLoss`	$104.40M	USD	1 Quarter
Net income	`ProfitLoss`	$336.50M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$371.70M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$861.70M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$618.80M	USD	Annual
Amortization of nuclear fuel	`AmortizationOfNuclearFuel`	$51.40M	USD	Annual
Amortization of nuclear fuel	`AmortizationOfNuclearFuel`	$32.20M	USD	Annual
Amortization of nuclear fuel	`AmortizationOfNuclearFuel`	$43.60M	USD	Annual
Amortization of deferred refueling outage	`AmortizationOfDeferredRefuelingOutageCosts`	$16.10M	USD	Annual
Amortization of deferred refueling outage	`AmortizationOfDeferredRefuelingOutageCosts`	$21.20M	USD	Annual
Amortization of deferred refueling outage	`AmortizationOfDeferredRefuelingOutageCosts`	$25.50M	USD	Annual
Amortization of corporate-owned life insurance	`AmortizationOfCorporateOwnedLifeInsurance`	$19.80M	USD	Annual
Amortization of corporate-owned life insurance	`AmortizationOfCorporateOwnedLifeInsurance`	$20.60M	USD	Annual
Amortization of corporate-owned life insurance	`AmortizationOfCorporateOwnedLifeInsurance`	$22.60M	USD	Annual
Non-cash compensation	`ShareBasedCompensation`	$29.90M	USD	Annual
Non-cash compensation	`ShareBasedCompensation`	$16.30M	USD	Annual
Non-cash compensation	`ShareBasedCompensation`	$8.80M	USD	Annual
Net deferred income taxes and credits	`DeferredIncomeTaxesAndTaxCredits`	$121.50M	USD	Annual
Net deferred income taxes and credits	`DeferredIncomeTaxesAndTaxCredits`	$124.20M	USD	Annual
Net deferred income taxes and credits	`DeferredIncomeTaxesAndTaxCredits`	$149.60M	USD	Annual
Allowance for equity funds used during construction	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$2.20M	USD	Annual
Allowance for equity funds used during construction	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$2.00M	USD	Annual
Allowance for equity funds used during construction	`IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction`	$3.10M	USD	Annual
Payments for asset retirement obligations	`PaymentsForAssetRetirementObligations`	$17.80M	USD	Annual
Payments for asset retirement obligations	`PaymentsForAssetRetirementObligations`	$22.40M	USD	Annual
Payments for asset retirement obligations	`PaymentsForAssetRetirementObligations`	$16.00M	USD	Annual
Equity in earnings of equity method investees, net of income taxes	`IncomeLossFromEquityMethodInvestments`	$5.40M	USD	Annual
Equity in earnings of equity method investees, net of income taxes	`IncomeLossFromEquityMethodInvestments`	$9.80M	USD	Annual
Equity in earnings of equity method investees, net of income taxes	`IncomeLossFromEquityMethodInvestments`	$6.70M	USD	Annual
Income from corporate-owned life insurance	`IncomeFromCorporateOwnedLifeInsurance`	$2.80M	USD	Annual
Income from corporate-owned life insurance	`IncomeFromCorporateOwnedLifeInsurance`	$2.30M	USD	Annual
Income from corporate-owned life insurance	`IncomeFromCorporateOwnedLifeInsurance`	$29.60M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$8.70M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$5.20M	USD	Annual
Other	`OtherNoncashIncomeExpense`	$3.20M	USD	Annual
Accounts receivable from subsidiaries	`IncreaseDecreaseInAccountsReceivable`	$-265.10M	USD	Annual
Accounts receivable from subsidiaries	`IncreaseDecreaseInAccountsReceivable`	$2.10M	USD	Annual
Accounts receivable from subsidiaries	`IncreaseDecreaseInAccountsReceivable`	$23.10M	USD	Annual
Accounts receivable pledged as collateral	`IncreaseDecreaseInAccountsReceivablePledgedAsCollateral`	$185.00M	USD	Annual
Accounts receivable pledged as collateral	`IncreaseDecreaseInAccountsReceivablePledgedAsCollateral`	-	USD	Annual
Accounts receivable pledged as collateral	`IncreaseDecreaseInAccountsReceivablePledgedAsCollateral`	$-26.00M	USD	Annual
Fuel inventory and supplies	`IncreaseDecreaseInEnergyRelatedInventory`	$-7.20M	USD	Annual
Fuel inventory and supplies	`IncreaseDecreaseInEnergyRelatedInventory`	$-54.70M	USD	Annual
Fuel inventory and supplies	`IncreaseDecreaseInEnergyRelatedInventory`	$-29.90M	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-43.40M	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$128.10M	USD	Annual
Prepaid expenses and other current assets	`IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets`	$-55.80M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$10.00M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$16.90M	USD	Annual
Accounts payable	`IncreaseDecreaseInAccountsPayable`	$56.70M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$-76.40M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$-8.20M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$9.20M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$-118.00M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$-59.40M	USD	Annual
Other current liabilities	`IncreaseDecreaseInOtherCurrentLiabilities`	$92.00M	USD	Annual
Changes in other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-66.80M	USD	Annual
Changes in other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-79.80M	USD	Annual
Changes in other assets	`IncreaseDecreaseInOtherOperatingAssets`	$-32.00M	USD	Annual
Changes in other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-15.90M	USD	Annual
Changes in other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$19.30M	USD	Annual
Changes in other liabilities	`IncreaseDecreaseInOtherOperatingLiabilities`	$-75.50M	USD	Annual
Cash Flows from Operating Activities	`NetCashProvidedByUsedInOperatingActivities`	$1.75B	USD	Annual
Cash Flows from Operating Activities	`NetCashProvidedByUsedInOperatingActivities`	$912.70M	USD	Annual
Cash Flows from Operating Activities	`NetCashProvidedByUsedInOperatingActivities`	$1.50B	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$764.60M	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.07B	USD	Annual
Additions to property, plant and equipment	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.21B	USD	Annual
Cash acquired from the merger with Great Plains Energy	`CashAcquiredFromAcquisition`	$1.15B	USD	Annual
Cash acquired from the merger with Great Plains Energy	`CashAcquiredFromAcquisition`	-	USD	Annual
Cash acquired from the merger with Great Plains Energy	`CashAcquiredFromAcquisition`	-	USD	Annual
Purchase of securities - trusts	`PaymentsToInvestInDecommissioningFund`	$41.00M	USD	Annual
Purchase of securities - trusts	`PaymentsToInvestInDecommissioningFund`	$55.80M	USD	Annual
Purchase of securities - trusts	`PaymentsToInvestInDecommissioningFund`	$117.50M	USD	Annual
Sale of securities - trusts	`ProceedsFromDecommissioningFund`	$117.70M	USD	Annual
Sale of securities - trusts	`ProceedsFromDecommissioningFund`	$47.30M	USD	Annual
Sale of securities - trusts	`ProceedsFromDecommissioningFund`	$41.20M	USD	Annual
Investment in corporate-owned life insurance	`PaymentsToAcquireLifeInsurancePolicies`	$17.00M	USD	Annual
Investment in corporate-owned life insurance	`PaymentsToAcquireLifeInsurancePolicies`	$17.10M	USD	Annual
Investment in corporate-owned life insurance	`PaymentsToAcquireLifeInsurancePolicies`	$18.30M	USD	Annual
Proceeds from investment in corporate-owned life insurance	`ProceedsFromLifeInsurancePolicies`	$161.70M	USD	Annual
Proceeds from investment in corporate-owned life insurance	`ProceedsFromLifeInsurancePolicies`	$6.80M	USD	Annual
Proceeds from investment in corporate-owned life insurance	`ProceedsFromLifeInsurancePolicies`	$4.20M	USD	Annual
Proceeds from settlement of interest rate swap	`ProceedsFromDerivativeInstrumentInvestingActivities`	-	USD	Annual
Proceeds from settlement of interest rate swap	`ProceedsFromDerivativeInstrumentInvestingActivities`	-	USD	Annual
Proceeds from settlement of interest rate swap	`ProceedsFromDerivativeInstrumentInvestingActivities`	$140.60M	USD	Annual
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$17.60M	USD	Annual
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$5.10M	USD	Annual
Other investing activities	`PaymentsForProceedsFromOtherInvestingActivities`	$3.60M	USD	Annual
Cash Flows from (used in) Investing Activities	`NetCashProvidedByUsedInInvestingActivities`	$-780.80M	USD	Annual
Cash Flows from (used in) Investing Activities	`NetCashProvidedByUsedInInvestingActivities`	$197.40M	USD	Annual
Cash Flows from (used in) Investing Activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.08B	USD	Annual
Short term debt, net	`ProceedsFromRepaymentsOfShortTermDebt`	$-91.30M	USD	Annual
Short term debt, net	`ProceedsFromRepaymentsOfShortTermDebt`	$-176.70M	USD	Annual
Short term debt, net	`ProceedsFromRepaymentsOfShortTermDebt`	$-104.00M	USD	Annual
Proceeds from term loan facility	`ProceedsFromShortTermDebt`	-	USD	Annual
Proceeds from term loan facility	`ProceedsFromShortTermDebt`	-	USD	Annual
Proceeds from term loan facility	`ProceedsFromShortTermDebt`	$1.00B	USD	Annual
Repayment of term loan facility	`RepaymentsOfShortTermDebt`	-	USD	Annual
Repayment of term loan facility	`RepaymentsOfShortTermDebt`	-	USD	Annual
Repayment of term loan facility	`RepaymentsOfShortTermDebt`	$1.00B	USD	Annual
Collateralized short-term borrowings, net	`ProceedsFromPaymentsForIssuanceOfCollateralizedDebtNet`	$-26.00M	USD	Annual
Collateralized short-term borrowings, net	`ProceedsFromPaymentsForIssuanceOfCollateralizedDebtNet`	-	USD	Annual
Collateralized short-term borrowings, net	`ProceedsFromPaymentsForIssuanceOfCollateralizedDebtNet`	$185.00M	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$2.37B	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$290.90M	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$296.20M	USD	Annual
Retirements of long-term debt	`RepaymentsOfLongTermDebt`	$395.80M	USD	Annual
Retirements of long-term debt	`RepaymentsOfLongTermDebt`	$125.00M	USD	Annual
Retirements of long-term debt	`RepaymentsOfLongTermDebt`	$701.10M	USD	Annual
Retirements of long-term debt of variable interest entities	`RetirementsofLongTermDebtOfVIEs`	$28.50M	USD	Annual
Retirements of long-term debt of variable interest entities	`RetirementsofLongTermDebtOfVIEs`	$30.30M	USD	Annual
Retirements of long-term debt of variable interest entities	`RetirementsofLongTermDebtOfVIEs`	$26.80M	USD	Annual
Payment for settlement of interest rate swap accounted for as a cash flow hedge	`PaymentsForHedgeFinancingActivities`	$69.80M	USD	Annual
Payment for settlement of interest rate swap accounted for as a cash flow hedge	`PaymentsForHedgeFinancingActivities`	-	USD	Annual
Payment for settlement of interest rate swap accounted for as a cash flow hedge	`PaymentsForHedgeFinancingActivities`	-	USD	Annual
Payment for settlement of interest rate swap accounted for as a cash flow hedge	`PaymentsForHedgeFinancingActivities`	$69.80M	USD	Point-in-time
Borrowings against cash surrender value of corporate-owned life insurance	`ProceedsFromBorrowingsAgainstCorporateOwnedLifeInsurance`	$59.40M	USD	Annual
Borrowings against cash surrender value of corporate-owned life insurance	`ProceedsFromBorrowingsAgainstCorporateOwnedLifeInsurance`	$55.10M	USD	Annual
Borrowings against cash surrender value of corporate-owned life insurance	`ProceedsFromBorrowingsAgainstCorporateOwnedLifeInsurance`	$56.50M	USD	Annual
Repayment of borrowings against cash surrender value of corporate-owned life insurance	`RepaymentsOfBorrowingsAgainstCorporateOwnedLifeInsurance`	$127.50M	USD	Annual
Repayment of borrowings against cash surrender value of corporate-owned life insurance	`RepaymentsOfBorrowingsAgainstCorporateOwnedLifeInsurance`	$1.00M	USD	Annual
Repayment of borrowings against cash surrender value of corporate-owned life insurance	`RepaymentsOfBorrowingsAgainstCorporateOwnedLifeInsurance`	$3.90M	USD	Annual
Cash dividends paid	`PaymentsOfDividends`	$462.50M	USD	Annual
Cash dividends paid	`PaymentsOfDividends`	$223.10M	USD	Annual
Cash dividends paid	`PaymentsOfDividends`	$475.00M	USD	Annual
Repurchase of common stock under repurchase plan	`PaymentsForRepurchaseOfCommonStock`	$1.04B	USD	Annual
Repurchase of common stock under repurchase plan	`PaymentsForRepurchaseOfCommonStock`	$1.63B	USD	Annual
Repurchase of common stock under repurchase plan	`PaymentsForRepurchaseOfCommonStock`	-	USD	Annual
Distributions to shareholders of noncontrolling interests	`PaymentsToMinorityShareholders`	$8.60M	USD	Annual
Distributions to shareholders of noncontrolling interests	`PaymentsToMinorityShareholders`	-	USD	Annual
Distributions to shareholders of noncontrolling interests	`PaymentsToMinorityShareholders`	$5.80M	USD	Annual
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-6.70M	USD	Annual
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-9.90M	USD	Annual
Other financing activities	`ProceedsFromPaymentsForOtherFinancingActivities`	$-21.30M	USD	Annual
Cash Flows from (used in) Financing Activities	`NetCashProvidedByUsedInFinancingActivities`	$-805.80M	USD	Annual
Cash Flows from (used in) Financing Activities	`NetCashProvidedByUsedInFinancingActivities`	$-1.54B	USD	Annual
Cash Flows from (used in) Financing Activities	`NetCashProvidedByUsedInFinancingActivities`	$-131.60M	USD	Annual
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-137.10M	USD	Annual
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$156.80M	USD	Annual
NET CHANGE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$300.00K	USD	Annual
Beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$23.20M	USD	Point-in-time
Beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$160.30M	USD	Point-in-time
Beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$3.50M	USD	Point-in-time
Beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$3.20M	USD	Point-in-time
End of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$23.20M	USD	Point-in-time
End of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$160.30M	USD	Point-in-time
End of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$3.50M	USD	Point-in-time
End of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$3.20M	USD	Point-in-time

Stockholders Equity 47 line items

Line Item	Tag	Value	Unit	Period
Dividends declared on common stock (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$1.74	USD	Annual
Dividends declared on common stock (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$1.93	USD	Annual
Dividends declared on common stock (in dollars per share)	`CommonStockDividendsPerShareDeclared`	$1.60	USD	Annual
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.86B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$9.99B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.83B	USD	Point-in-time
Beginning balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.55B	USD	Point-in-time
Net income	`ProfitLoss`	$62.90M	USD	1 Quarter
Net income	`ProfitLoss`	$546.00M	USD	Annual
Net income	`ProfitLoss`	$370.90M	USD	1 Quarter
Net income	`ProfitLoss`	$357.60M	USD	1 Quarter
Net income	`ProfitLoss`	$685.60M	USD	Annual
Net income	`ProfitLoss`	$21.10M	USD	1 Quarter
Net income	`ProfitLoss`	$66.70M	USD	1 Quarter
Net income	`ProfitLoss`	$144.60M	USD	1 Quarter
Net income	`ProfitLoss`	$103.40M	USD	1 Quarter
Net income	`ProfitLoss`	$104.40M	USD	1 Quarter
Net income	`ProfitLoss`	$336.50M	USD	Annual
Issuance of stock	`StockIssuedDuringPeriodValueAcquisitions`	$6.98B	USD	Annual
Issuance of stock	`StockIssuedDuringPeriodValueAcquisitions`	$600.00K	USD	Annual
Issuance of stock compensation and reinvested dividends, net of tax withholding	`StockIssuedDuringPeriodValueDividendReinvestmentPlanAndShareBasedCompensationNet`	$2.40M	USD	Annual
Issuance of stock compensation and reinvested dividends, net of tax withholding	`StockIssuedDuringPeriodValueDividendReinvestmentPlanAndShareBasedCompensationNet`	$16.70M	USD	Annual
Issuance of stock compensation and reinvested dividends, net of tax withholding	`StockIssuedDuringPeriodValueDividendReinvestmentPlanAndShareBasedCompensationNet`	$1.90M	USD	Annual
Dividends declared on common stock	`DividendsCommonStockCash`	$362.10M	USD	Annual
Dividends declared on common stock	`DividendsCommonStockCash`	$229.20M	USD	Annual
Dividends declared on common stock	`DividendsCommonStockCash`	$462.50M	USD	Annual
Stock compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$8.80M	USD	Annual
Stock compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$16.30M	USD	Annual
Stock compensation expense	`AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue`	$29.90M	USD	Annual
Deconsolidation of noncontrolling interests	`NoncontrollingInterestIncreaseFromConsolidationNet`	$-81.90M	USD	Annual
Deconsolidation of noncontrolling interests	`NoncontrollingInterestIncreaseFromConsolidationNet`	$3.80M	USD	Annual
Distributions to shareholders of noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$5.70M	USD	Annual
Distributions to shareholders of noncontrolling interests	`MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders`	$8.60M	USD	Annual
Dividend equivalents declared	`DividendsShareBasedCompensation`	$1.00M	USD	Annual
Dividend equivalents declared	`DividendsShareBasedCompensation`	$1.90M	USD	Annual
Repurchase of common stock	`StockRepurchasedDuringPeriodValue`	$1.63B	USD	Annual
Repurchase of common stock	`StockRepurchasedDuringPeriodValue`	$1.04B	USD	Annual
Derivative hedging activity, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$-46.40M	USD	Annual
Derivative hedging activity, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$-4.00M	USD	Annual
Change in unrecognized pension expense, net of tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-600.00K	USD	Annual
Change in unrecognized pension expense, net of tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	Annual
Change in unrecognized pension expense, net of tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$1.00M	USD	Annual
Other	`StockholdersEquityOther`	$400.00K	USD	Annual
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.86B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$9.99B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$3.83B	USD	Point-in-time
Ending balance	`StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest`	$8.55B	USD	Point-in-time

Comprehensive Income 152 line items

Line Item	Tag	Value	Unit	Period
OPERATING REVENUES	`Revenues`	$1.58B	USD	1 Quarter
OPERATING REVENUES	`Revenues`	$600.20M	USD	1 Quarter
OPERATING REVENUES	`Revenues`	$4.28B	USD	Annual
OPERATING REVENUES	`Revenues`	$1.58B	USD	1 Quarter
OPERATING REVENUES	`Revenues`	$2.57B	USD	Annual
OPERATING REVENUES	`Revenues`	$1.22B	USD	1 Quarter
OPERATING REVENUES	`Revenues`	$5.15B	USD	Annual
OPERATING REVENUES	`Revenues`	$1.13B	USD	1 Quarter
OPERATING REVENUES	`Revenues`	$1.20B	USD	1 Quarter
OPERATING REVENUES	`Revenues`	$1.22B	USD	1 Quarter
OPERATING REVENUES	`Revenues`	$893.40M	USD	1 Quarter
Fuel and purchased power	`FuelAndPurchasedPower`	$541.50M	USD	Annual
Fuel and purchased power	`FuelAndPurchasedPower`	$1.26B	USD	Annual
Fuel and purchased power	`FuelAndPurchasedPower`	$1.08B	USD	Annual
SPP network transmission costs	`SPPNetworkTransmissionCosts`	$259.90M	USD	Annual
SPP network transmission costs	`SPPNetworkTransmissionCosts`	$247.90M	USD	Annual
SPP network transmission costs	`SPPNetworkTransmissionCosts`	$251.30M	USD	Annual
Operating and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.22B	USD	Annual
Operating and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.12B	USD	Annual
Operating and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$563.50M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$371.70M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$861.70M	USD	Annual
Depreciation and amortization	`DepreciationAndAmortization`	$618.80M	USD	Annual
Taxes other than income tax	`TaxesExcludingIncomeAndExciseTaxes`	$365.50M	USD	Annual
Taxes other than income tax	`TaxesExcludingIncomeAndExciseTaxes`	$167.60M	USD	Annual
Taxes other than income tax	`TaxesExcludingIncomeAndExciseTaxes`	$269.10M	USD	Annual
Total Operating Expenses	`CostsAndExpenses`	$3.96B	USD	Annual
Total Operating Expenses	`CostsAndExpenses`	$3.34B	USD	Annual
Total Operating Expenses	`CostsAndExpenses`	$1.89B	USD	Annual
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$209.60M	USD	1 Quarter
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$123.50M	USD	1 Quarter
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$271.70M	USD	1 Quarter
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$933.60M	USD	Annual
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$165.80M	USD	1 Quarter
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$150.10M	USD	1 Quarter
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$1.19B	USD	Annual
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$678.80M	USD	Annual
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$533.10M	USD	1 Quarter
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$538.70M	USD	1 Quarter
INCOME FROM OPERATIONS	`OperatingIncomeLoss`	$126.90M	USD	1 Quarter
Investment earnings	`GainLossOnInvestments`	$11.00M	USD	Annual
Investment earnings	`GainLossOnInvestments`	$4.00M	USD	Annual
Investment earnings	`GainLossOnInvestments`	$8.80M	USD	Annual
Other income	`OtherNonoperatingIncome`	$15.50M	USD	Annual
Other income	`OtherNonoperatingIncome`	$8.30M	USD	Annual
Other income	`OtherNonoperatingIncome`	$26.90M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$76.90M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$78.70M	USD	Annual
Other expense	`OtherNonoperatingExpense`	$39.10M	USD	Annual
Total Other Expense, Net	`NonoperatingIncomeExpense`	$-54.40M	USD	Annual
Total Other Expense, Net	`NonoperatingIncomeExpense`	$-39.00M	USD	Annual
Total Other Expense, Net	`NonoperatingIncomeExpense`	$-26.80M	USD	Annual
Interest expense	`InterestExpense`	$171.00M	USD	Annual
Interest expense	`InterestExpense`	$279.60M	USD	Annual
Interest expense	`InterestExpense`	$374.00M	USD	Annual
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$772.80M	USD	Annual
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$481.00M	USD	Annual
INCOME BEFORE INCOME TAXES	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments`	$599.60M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$151.20M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$97.00M	USD	Annual
Income tax expense	`IncomeTaxExpenseBenefit`	$59.00M	USD	Annual
Equity in earnings of equity method investees, net of income taxes	`IncomeLossFromEquityMethodInvestments`	$5.40M	USD	Annual
Equity in earnings of equity method investees, net of income taxes	`IncomeLossFromEquityMethodInvestments`	$9.80M	USD	Annual
Equity in earnings of equity method investees, net of income taxes	`IncomeLossFromEquityMethodInvestments`	$6.70M	USD	Annual
NET INCOME	`ProfitLoss`	$62.90M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$546.00M	USD	Annual
NET INCOME	`ProfitLoss`	$370.90M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$357.60M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$685.60M	USD	Annual
NET INCOME	`ProfitLoss`	$21.10M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$66.70M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$144.60M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$103.40M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$104.40M	USD	1 Quarter
NET INCOME	`ProfitLoss`	$336.50M	USD	Annual
Less: Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$10.20M	USD	Annual
Less: Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$15.70M	USD	Annual
Less: Net income attributable to noncontrolling interests	`NetIncomeLossAttributableToNoncontrollingInterest`	$12.60M	USD	Annual
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$669.90M	USD	Annual
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$99.50M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$18.50M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$63.90M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$139.70M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$60.50M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$535.80M	USD	Annual
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$366.80M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$355.00M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$101.80M	USD	1 Quarter
Net income attributable to Evergy, Inc.	`NetIncomeLoss`	$323.90M	USD	Annual
Basic earnings per common share (in dollars per share)	`EarningsPerShareBasic`	$2.80	USD	Annual
Basic earnings per common share (in dollars per share)	`EarningsPerShareBasic`	$2.50	USD	Annual
Basic earnings per common share (in dollars per share)	`EarningsPerShareBasic`	$2.27	USD	Annual
Diluted earnings per common share (in dollars per share)	`EarningsPerShareDiluted`	$2.27	USD	Annual
Diluted earnings per common share (in dollars per share)	`EarningsPerShareDiluted`	$2.50	USD	Annual
Diluted earnings per common share (in dollars per share)	`EarningsPerShareDiluted`	$2.79	USD	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	142.50M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	213.90M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	239.50M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	239.90M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	142.60M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	214.10M	shares	Annual
Net income	`ProfitLoss`	$62.90M	USD	1 Quarter
Net income	`ProfitLoss`	$546.00M	USD	Annual
Net income	`ProfitLoss`	$370.90M	USD	1 Quarter
Net income	`ProfitLoss`	$357.60M	USD	1 Quarter
Net income	`ProfitLoss`	$685.60M	USD	Annual
Net income	`ProfitLoss`	$21.10M	USD	1 Quarter
Net income	`ProfitLoss`	$66.70M	USD	1 Quarter
Net income	`ProfitLoss`	$144.60M	USD	1 Quarter
Net income	`ProfitLoss`	$103.40M	USD	1 Quarter
Net income	`ProfitLoss`	$104.40M	USD	1 Quarter
Net income	`ProfitLoss`	$336.50M	USD	Annual
Loss on derivative hedging instruments	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax`	$-64.40M	USD	Annual
Loss on derivative hedging instruments	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax`	$-69.80M	USD	3 Qtrs
Loss on derivative hedging instruments	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax`	$-5.40M	USD	Annual
Loss on derivative hedging instruments	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax`	-	USD	Annual
Income tax benefit	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-1.40M	USD	Annual
Income tax benefit	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-16.50M	USD	Annual
Income tax benefit	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax`	-	USD	Annual
Net loss on derivative hedging instruments	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-4.00M	USD	Annual
Net loss on derivative hedging instruments	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-47.90M	USD	Annual
Net loss on derivative hedging instruments	`OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax`	-	USD	Annual
Reclassification to expenses, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	$-1.50M	USD	Annual
Reclassification to expenses, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax`	-	USD	Annual
Reclassification to expenses, net of tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax`	-	USD	Annual
Derivative hedging activity, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$-46.40M	USD	Annual
Derivative hedging activity, net of tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax`	$-4.00M	USD	Annual
Derivative hedging activity, net of tax	`OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax`	-	USD	Annual
Net gain (loss) arising during period	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax`	$-800.00K	USD	Annual
Net gain (loss) arising during period	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax`	-	USD	Annual
Net gain (loss) arising during period	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax`	$1.40M	USD	Annual
Income tax expense (benefit)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	-	USD	Annual
Income tax expense (benefit)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$400.00K	USD	Annual
Income tax expense (benefit)	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$-200.00K	USD	Annual
Net gain (loss) arising during period	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-600.00K	USD	Annual
Net gain (loss) arising during period	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	-	USD	Annual
Net gain (loss) arising during period	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$1.00M	USD	Annual
Change in unrecognized pension expense, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	-	USD	Annual
Change in unrecognized pension expense, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$-1.00M	USD	Annual
Change in unrecognized pension expense, net of tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax`	$600.00K	USD	Annual
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-3.00M	USD	Annual
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	-	USD	Annual
Total other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-47.00M	USD	Annual
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$336.50M	USD	Annual
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$638.60M	USD	Annual
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest`	$543.00M	USD	Annual
Less: comprehensive income attributable to noncontrolling interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	$15.70M	USD	Annual
Less: comprehensive income attributable to noncontrolling interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	$12.60M	USD	Annual
Less: comprehensive income attributable to noncontrolling interest	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest`	$10.20M	USD	Annual
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTax`	$622.90M	USD	Annual
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTax`	$532.80M	USD	Annual
COMPREHENSIVE INCOME	`ComprehensiveIncomeNetOfTax`	$323.90M	USD	Annual

Data is extracted from SEC EDGAR XBRL filings. Values shown are as reported in the filing.