$ES
Eversource Energy Stock $es

$es Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000007274123000004 Filed on February 15, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$3.796B	$2.958B	$12.29B
YoY Change	9.34%	15.51%	24.6%
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	$236.9M	$308.5M	$1.643B
YoY Change	-54.99%	9.87%	23.08%
% of Gross Profit
Operating Expenses	$3.046B	$2.508B	$10.09B
YoY Change	8.47%	24.81%	28.23%
Operating Profit	$749.6M		$2.198B
YoY Change	13.04%		10.28%
Interest Expense	$194.5M	-$165.0M	$678.3M
YoY Change	26.92%	15.54%	16.48%
% of Operating Profit	25.95%		30.86%
Other Income/Expense, Net	$89.00M	$69.14M	$346.1M
YoY Change	24.3%	144.35%	114.57%
Pretax Income	$644.0M	$426.3M	$1.866B
YoY Change	10.77%	18.97%	18.68%
Income Tax	$151.0M	$104.3M	$453.6M
% Of Pretax Income	23.44%	24.46%	24.31%
Net Earnings	$493.0M	$320.2M	$1.412B
YoY Change	10.71%	4.39%	15.02%
Net Earnings / Revenue	12.99%	10.82%	11.49%
Basic Earnings Per Share	$1.41		$4.05
Diluted Earnings Per Share	$1.41	$0.92	$4.05
COMMON SHARES
Basic Shares Outstanding	348.5M shares	348.3M shares	346.8M shares
Diluted Shares Outstanding	349.6M shares		347.2M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$35.98M	$374.6M	$374.6M
YoY Change	-22.09%	461.01%	461.01%
Cash & Equivalents	$36.00M	$374.6M	$327.0M
Short-Term Investments
Other Short-Term Assets	$468.3M	$382.6M	$1.957B
YoY Change	33.45%	3.47%	14.47%
Inventory	$423.3M	$374.4M	$374.4M
Prepaid Expenses
Receivables	$1.660B	$1.517B	$1.517B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$4.136B	$4.223B	$4.223B
YoY Change	19.08%	29.15%	29.15%
LONG-TERM ASSETS
Property, Plant & Equipment	$36.74B	$36.17B	$36.17B
YoY Change	8.54%	8.21%	8.21%
Goodwill	$4.523B	$4.523B
YoY Change	1.02%	1.01%
Intangibles
YoY Change
Long-Term Investments	$2.303B	$2.176B	$2.543B
YoY Change	49.01%	51.51%	34.06%
Other Assets	$560.6M	$541.3M	$5.773B
YoY Change	-40.6%	-11.51%	6.44%
Total Long-Term Assets	$49.97B	$49.01B	$49.01B
YoY Change	9.07%	8.37%	8.37%
TOTAL ASSETS
Total Short-Term Assets	$4.136B	$4.223B	$4.223B
Total Long-Term Assets	$49.97B	$49.01B	$49.01B
Total Assets	$54.11B	$53.23B	$53.23B
YoY Change	9.77%	9.77%	9.77%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.822B	$2.114B	$2.114B
YoY Change	21.92%	26.41%	26.41%
Accrued Expenses		$9.000M	$9.000M
YoY Change		-10.0%	-10.0%
Deferred Revenue
YoY Change
Short-Term Debt	$1.196B	$1.442B	$1.442B
YoY Change	-28.36%	-4.2%	-4.2%
Long-Term Debt Due	$1.615B	$1.320B	$1.367B
YoY Change	97.7%	10.65%	10.23%
Total Short-Term Liabilities	$6.405B	$6.799B	$6.799B
YoY Change	14.35%	16.29%	16.29%
LONG-TERM LIABILITIES
Long-Term Debt	$20.56B	$19.72B	$20.19B
YoY Change	14.79%	15.86%	15.51%
Other Long-Term Liabilities	$884.7M	$888.1M	$5.546B
YoY Change	2.6%	-8.55%	-4.62%
Total Long-Term Liabilities	$21.45B	$20.61B	$25.73B
YoY Change	14.23%	14.55%	10.49%
TOTAL LIABILITIES
Total Short-Term Liabilities	$6.405B	$6.799B	$6.799B
Total Long-Term Liabilities	$21.45B	$20.61B	$25.73B
Total Liabilities	$27.85B	$27.41B	$37.60B
YoY Change	14.26%	14.97%	11.46%
SHAREHOLDERS EQUITY
Retained Earnings	$5.783B	$5.527B
YoY Change	10.59%	10.42%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)	$209.4M	$216.2M
YoY Change	-13.66%	-13.81%
Treasury Stock Shares	11.18M shares	11.54M shares
Shareholders Equity	$15.75B	$15.47B	$15.63B
YoY Change
Total Liabilities & Shareholders Equity	$54.11B	$53.23B	$53.23B
YoY Change	9.77%	9.77%	9.77%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$493.0M	$320.2M	$1.412B
YoY Change	10.71%	4.39%	15.02%
Depreciation, Depletion And Amortization	$236.9M	$308.5M	$1.643B
YoY Change	-54.99%	9.87%	23.08%
Cash From Operating Activities	$69.16M	$712.4M	$2.401B
YoY Change	-81.41%	61.05%	22.35%
INVESTING ACTIVITIES
Capital Expenditures	$977.1M	$1.089B	$3.442B
YoY Change	27.79%	-212.98%	8.4%
Acquisitions
YoY Change
Other Investing Activities	-$5.640M	-$113.2M	-$20.42M
YoY Change	-5.62%	73.83%	-7.93%
Cash From Investing Activities	-$1.052B	-$1.202B	-$4.130B
YoY Change	22.52%	16.84%	19.82%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$197.1M
YoY Change
Debt Paid & Issued, Net	$400.0M		$1.175B
YoY Change	-48.05%		2.84%
Cash From Financing Activities	$623.4M	409.5M	$2.030B
YoY Change	45.02%	-30.56%	40.89%
NET CHANGE
Cash From Operating Activities	$69.16M	712.4M	$2.401B
Cash From Investing Activities	-$1.052B	-1.202B	-$4.130B
Cash From Financing Activities	$623.4M	409.5M	$2.030B
Net Change In Cash	-$359.0M	-80.50M	$300.7M
YoY Change	536.28%	-2896.25%	-784.41%
FREE CASH FLOW
Cash From Operating Activities	$69.16M	$712.4M	$2.401B
Capital Expenditures	$977.1M	$1.089B	$3.442B
Free Cash Flow	-$907.9M	-$376.7M	-$1.041B
YoY Change	131.23%	-126.79%	-14.18%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0000072741
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Amendment Flag AmendmentFlag	false
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CY2022Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherLiabilitiesCurrent
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CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity Registrant Name EntityRegistrantName	EVERSOURCE ENERGY
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MA
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	300 Cadwell Drive
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Springfield
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	MA
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	01104
CY2022	dei	City Area Code CityAreaCode	800
CY2022	dei	Local Phone Number LocalPhoneNumber	286-5000
CY2022	dei	Entity File Number EntityFileNumber	001-05324
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	04-2147929
CY2022	dei	Security12b Title Security12bTitle	Common Shares, $5.00 par value per share
CY2022	dei	Trading Symbol TradingSymbol	ES
CY2022	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
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CY2022	dei	Auditor Firm AuditorFirmId	34
CY2022	dei	Auditor Name AuditorName	Deloitte & Touche LLP
CY2022	dei	Auditor Location AuditorLocation	Hartford, Connecticut
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CY2021	es	Energy Efficiency Programs EnergyEfficiencyPrograms	592775000	usd
CY2020	es	Energy Efficiency Programs EnergyEfficiencyPrograms	535760000	usd
CY2022	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	910591000	usd
CY2021	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	829987000	usd
CY2020	us-gaap	Taxes Excluding Income And Excise Taxes TaxesExcludingIncomeAndExciseTaxes	752785000	usd
CY2022	us-gaap	Operating Expenses OperatingExpenses	10091182000	usd
CY2021	us-gaap	Operating Expenses OperatingExpenses	7869764000	usd
CY2020	us-gaap	Operating Expenses OperatingExpenses	6915696000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	2198154000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	1993321000	usd
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	1988734000	usd
CY2022	us-gaap	Interest Expense InterestExpense	678274000	usd
CY2021	us-gaap	Interest Expense InterestExpense	582334000	usd
CY2020	us-gaap	Interest Expense InterestExpense	538452000	usd
CY2022	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	346088000	usd
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	161282000	usd
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	108590000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1865968000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1572269000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1558872000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	453574000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	344223000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	346186000	usd
CY2022	us-gaap	Profit Loss ProfitLoss	1412394000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	1228046000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	1212686000	usd
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	7519000	usd
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	7519000	usd
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	7519000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1404875000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1220527000	usd
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1205167000	usd
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.05
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.55
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.56
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.05
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.54
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.55
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	346783444	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	343972926	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	338836147	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	347246768	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	344631056	shares
CY2022	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	7519000	usd
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	339847062	shares
CY2022	us-gaap	Profit Loss ProfitLoss	1412394000	usd
CY2021	us-gaap	Profit Loss ProfitLoss	1228046000	usd
CY2020	us-gaap	Profit Loss ProfitLoss	1212686000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	20000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	972000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	1596000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-1636000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-671000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	342000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-4470000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-33835000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	13290000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2854000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	34136000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-11352000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	7519000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	7519000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1407729000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1254663000	usd
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1193815000	usd
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	12629994000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1212686000	usd
CY2020	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.27
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	767500000	usd
CY2020	us-gaap	Dividends Preferred Stock DividendsPreferredStock	7519000	usd
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	5
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	949660000	usd
CY2020	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	7890000	usd
CY2020	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	71888000	usd
CY2020	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	20667000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-11352000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	14063566000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1228046000	usd
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.41
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	828337000	usd
CY2021	us-gaap	Dividends Preferred Stock DividendsPreferredStock	7519000	usd
CY2021	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	3537000	usd
CY2021	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	68364000	usd
CY2021	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	38051000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	34136000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	14599844000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	1412394000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.55
CY2022	us-gaap	Dividends Common Stock DividendsCommonStock	883113000	usd
CY2022	us-gaap	Dividends Preferred Stock DividendsPreferredStock	7519000	usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	5
CY2022	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	199905000	usd
CY2022	us-gaap	Stock Issued During Period Value Restricted Stock Award Net Of Forfeitures StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures	8335000	usd
CY2022	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	71172000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Stock Issued Issuance Costs AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	2847000	usd
CY2022	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	72133000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	2854000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	15473158000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	1412394000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1228046000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1212686000	usd
CY2022	us-gaap	Depreciation Depreciation	1194246000	usd
CY2021	us-gaap	Depreciation Depreciation	1103008000	usd
CY2020	us-gaap	Depreciation Depreciation	981380000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	346779000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	347056000	usd
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	257154000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	61876000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	60886000	usd
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	53461000	usd
CY2022	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	-160857000	usd
CY2021	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	-14693000	usd
CY2020	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	12888000	usd
CY2022	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	83148000	usd
CY2021	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	182344000	usd
CY2020	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	111524000	usd
CY2022	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	205294000	usd
CY2021	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	314211000	usd
CY2020	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	516411000	usd
CY2022	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	72041000	usd
CY2021	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	-81274000	usd
CY2020	us-gaap	Gain Loss Related To Litigation Settlement GainLossRelatedToLitigationSettlement	0	usd
CY2022	us-gaap	Amortization Of Deferred Charges AmortizationOfDeferredCharges	448892000	usd
CY2021	us-gaap	Amortization Of Deferred Charges AmortizationOfDeferredCharges	231965000	usd
CY2020	us-gaap	Amortization Of Deferred Charges AmortizationOfDeferredCharges	177679000	usd
CY2022	es	Regulatory Assets Removal Costs Income RegulatoryAssetsRemovalCostsIncome	303755000	usd
CY2021	es	Regulatory Assets Removal Costs Income RegulatoryAssetsRemovalCostsIncome	242130000	usd
CY2020	es	Regulatory Assets Removal Costs Income RegulatoryAssetsRemovalCostsIncome	148332000	usd
CY2022	us-gaap	Increase Decrease In Property And Other Taxes Payable IncreaseDecreaseInPropertyAndOtherTaxesPayable	-78446000	usd
CY2021	us-gaap	Increase Decrease In Property And Other Taxes Payable IncreaseDecreaseInPropertyAndOtherTaxesPayable	0	usd
CY2020	us-gaap	Increase Decrease In Property And Other Taxes Payable IncreaseDecreaseInPropertyAndOtherTaxesPayable	0	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	39192000	usd
CY2021	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	64640000	usd
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	25957000	usd
CY2022	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	470593000	usd
CY2021	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	135505000	usd
CY2020	us-gaap	Increase Decrease In Accounts And Other Receivables IncreaseDecreaseInAccountsAndOtherReceivables	351843000	usd
CY2022	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-18358000	usd
CY2021	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	110621000	usd
CY2020	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-43819000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	377657000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-29201000	usd
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	122567000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	45583000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-3710000	usd
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	24995000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2401293000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1962600000	usd
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1682572000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3441852000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3175080000	usd
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2942996000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	457612000	usd
CY2021	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	447893000	usd
CY2020	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	434124000	usd
CY2022	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	424174000	usd
CY2021	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	414980000	usd
CY2020	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	401823000	usd
CY2022	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	usd
CY2021	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	0	usd
CY2020	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	1113252000	usd
CY2022	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	742496000	usd
CY2021	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	327385000	usd
CY2020	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	239673000	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-20420000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-22178000	usd
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-23809000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4130490000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3447374000	usd
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-4129275000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	197058000	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	928992000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	860033000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	805439000	usd
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	744665000	usd
CY2022	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	7519000	usd
CY2021	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	7519000	usd
CY2020	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	7519000	usd
CY2022	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-78170000	usd
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	256125000	usd
CY2020	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	13955000	usd
CY2022	es	Proceeds Payments Of Issuance Of Rate Reduction Bonds ProceedsPaymentsOfIssuanceOfRateReductionBonds	-43210000	usd
CY2021	es	Proceeds Payments Of Issuance Of Rate Reduction Bonds ProceedsPaymentsOfIssuanceOfRateReductionBonds	-43210000	usd
CY2020	es	Proceeds Payments Of Issuance Of Rate Reduction Bonds ProceedsPaymentsOfIssuanceOfRateReductionBonds	-43210000	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	4045000000	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	3230000000	usd
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	2760000000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1175000000	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	1142500000	usd
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	327236000	usd
CY2022	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-48185000	usd
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-46625000	usd
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	14273000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2029941000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1440832000	usd
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	2594590000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	300744000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-43942000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	147887000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	221008000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	264950000	usd
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	117063000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	521752000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	221008000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	264950000	usd
CY2021	es	Noncontrolling Interest Increasein Contributions From Parent NoncontrollingInterestIncreaseinContributionsFromParent	160000000	usd
CY2022	es	Numberof Electric Natural Gas And Water Customers NumberofElectricNaturalGasAndWaterCustomers	4400000	customer
CY2022Q4	us-gaap	Goodwill Goodwill	4520000000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	4480000000	usd
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	224800000	usd
CY2020	es	Accounts Receivable Allowance For Credit Loss Increase From Business Combination AccountsReceivableAllowanceForCreditLossIncreaseFromBusinessCombination	24200000	usd
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	53500000	usd
CY2020	es	Accounts Receivable Allowance For Credit Loss Deferred Expense Reversal AccountsReceivableAllowanceForCreditLossDeferredExpenseReversal	97000000.0	usd
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	78000000.0	usd
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	13600000	usd
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	358900000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	60900000	usd
CY2021	es	Accounts Receivable Allowance For Credit Loss Deferred Expense Reversal AccountsReceivableAllowanceForCreditLossDeferredExpenseReversal	110600000	usd
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	129700000	usd
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	16700000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	417400000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	61900000	usd
CY2022	es	Accounts Receivable Allowance For Credit Loss Deferred Expense Reversal AccountsReceivableAllowanceForCreditLossDeferredExpenseReversal	112500000	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	124000000.0	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Recoveries AllowanceForDoubtfulAccountsReceivableRecoveries	18500000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	486300000	usd
CY2022Q4	us-gaap	Inventory Gross InventoryGross	374400000	usd
CY2021Q4	us-gaap	Inventory Gross InventoryGross	267500000	usd
CY2022	es	Fuel Power Costs FuelPowerCosts	1010200000	usd
CY2021	es	Fuel Power Costs FuelPowerCosts	718600000	usd
CY2020	es	Fuel Power Costs FuelPowerCosts	464200000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	21800000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	18400000	usd
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	23700000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	47300000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	37300000	usd
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	42000000.0	usd
CY2022	es	Allowance For Funds Used During Construction AllowanceForFundsUsedDuringConstruction	69100000	usd
CY2021	es	Allowance For Funds Used During Construction AllowanceForFundsUsedDuringConstruction	55700000	usd
CY2020	es	Allowance For Funds Used During Construction AllowanceForFundsUsedDuringConstruction	65700000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.047
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.042
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.050
CY2022	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	346100000	usd
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	161300000	usd
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	108600000	usd
CY2022	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	194700000	usd
CY2021	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	181900000	usd
CY2020	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	170600000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	636200000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	568700000	usd
CY2020	us-gaap	Interest Paid Net InterestPaidNet	518000000.0	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	77900000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	121600000	usd
CY2020	es	Payments For Charitable Contributions Related Parties PaymentsForCharitableContributionsRelatedParties	6400000	usd
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	48900000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	586900000	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	467900000	usd
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	367200000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	374600000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	66800000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	521800000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	221000000.0	usd
CY2022	es	Payments For Charitable Contributions Related Parties PaymentsForCharitableContributionsRelatedParties	8000000	usd
CY2022Q4	us-gaap	Regulatory Assets RegulatoryAssets	5578300000	usd
CY2021Q4	us-gaap	Regulatory Assets RegulatoryAssets	5715800000	usd
CY2022Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	1335500000	usd
CY2021Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	1129100000	usd
CY2022Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	4242800000	usd
CY2021Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	4586700000	usd
CY2022Q4	us-gaap	Amount Of Regulatory Costs Not Yet Approved AmountOfRegulatoryCostsNotYetApproved	210800000	usd
CY2021Q4	us-gaap	Amount Of Regulatory Costs Not Yet Approved AmountOfRegulatoryCostsNotYetApproved	252500000	usd
CY2022Q4	es	Deferred Regulatory Costs Uncollectible Expenses Incurred DeferredRegulatoryCostsUncollectibleExpensesIncurred	29800000	usd
CY2021Q4	es	Deferred Regulatory Costs Uncollectible Expenses Incurred DeferredRegulatoryCostsUncollectibleExpensesIncurred	33000000	usd
CY2022Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	4821100000	usd
CY2021Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	4468700000	usd
CY2022Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	890800000	usd
CY2021Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	602400000	usd
CY2022Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	3930300000	usd
CY2021Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	3866300000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Distribution PublicUtilitiesPropertyPlantAndEquipmentDistribution	18326200000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Distribution PublicUtilitiesPropertyPlantAndEquipmentDistribution	17679100000	usd
CY2022Q4	es	Public Utilities Property Plant And Equipment Distribution Natural Gas PublicUtilitiesPropertyPlantAndEquipmentDistributionNaturalGas	7443800000	usd
CY2021Q4	es	Public Utilities Property Plant And Equipment Distribution Natural Gas PublicUtilitiesPropertyPlantAndEquipmentDistributionNaturalGas	6694800000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission PublicUtilitiesPropertyPlantAndEquipmentTransmission	13709300000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission PublicUtilitiesPropertyPlantAndEquipmentTransmission	12882400000	usd
CY2022Q4	es	Public Utilities Property Plant And Equipment Distribution Water PublicUtilitiesPropertyPlantAndEquipmentDistributionWater	2112600000	usd
CY2021Q4	es	Public Utilities Property Plant And Equipment Distribution Water PublicUtilitiesPropertyPlantAndEquipmentDistributionWater	1900900000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Generation Or Processing PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing	200800000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Generation Or Processing PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing	200900000	usd
CY2022Q4	es	Public Utilities Property Plant And Equipment Electric Natural Gasand Water Utility Total PublicUtilitiesPropertyPlantAndEquipmentElectricNaturalGasandWaterUtilityTotal	41792700000	usd
CY2021Q4	es	Public Utilities Property Plant And Equipment Electric Natural Gasand Water Utility Total PublicUtilitiesPropertyPlantAndEquipmentElectricNaturalGasandWaterUtilityTotal	39358100000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	1738100000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Other Property Plant And Equipment PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipment	1469500000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	43530800000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	40827600000	usd
CY2022Q4	es	Public Utilities Property Plantand Equipment Accumulated Depreciation Electric Natural Gasand Water Utility PublicUtilitiesPropertyPlantandEquipmentAccumulatedDepreciationElectricNaturalGasandWaterUtility	9167400000	usd
CY2021Q4	es	Public Utilities Property Plantand Equipment Accumulated Depreciation Electric Natural Gasand Water Utility PublicUtilitiesPropertyPlantandEquipmentAccumulatedDepreciationElectricNaturalGasandWaterUtility	8885200000	usd
CY2022Q4	es	Public Utilities Property Plantand Equipment Accumulated Depreciation Other PublicUtilitiesPropertyPlantandEquipmentAccumulatedDepreciationOther	706100000	usd
CY2021Q4	es	Public Utilities Property Plantand Equipment Accumulated Depreciation Other PublicUtilitiesPropertyPlantandEquipmentAccumulatedDepreciationOther	580100000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	9873500000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	9465300000	usd
CY2022Q4	es	Property Plant And Equipment Net Excluding Construction Work In Progress PropertyPlantAndEquipmentNetExcludingConstructionWorkInProgress	33657300000	usd
CY2021Q4	es	Property Plant And Equipment Net Excluding Construction Work In Progress PropertyPlantAndEquipmentNetExcludingConstructionWorkInProgress	31362300000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	2455500000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	2015400000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	36112800000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	33377700000	usd
CY2022	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.030
CY2021	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.031
CY2020	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.030
CY2022	es	Distribution Assets Average Useful Life DistributionAssetsAverageUsefulLife	P34Y2M12D
CY2022	es	Distribution Natural Gas Useful Life DistributionNaturalGasUsefulLife	P37Y4M24D
CY2022	es	Transmission Assets Average Useful Life TransmissionAssetsAverageUsefulLife	P39Y9M18D
CY2022	es	Water Assets Average Useful Life WaterAssetsAverageUsefulLife	P39Y
CY2022	es	Generation Assets Average Useful Life GenerationAssetsAverageUsefulLife	P22Y10M24D
CY2022	es	Other Assets Average Useful Life OtherAssetsAverageUsefulLife	P11Y
CY2022	es	Percentageof Costsor Benefits Borne Under Capacity Related Contractsby United Illuminated Company PercentageofCostsorBenefitsBorneUnderCapacityRelatedContractsbyUnitedIlluminatedCompany	0.20
CY2022Q4	es	Amountof Capacity Provided Under Capacity Contract AmountofCapacityProvidedUnderCapacityContract	674	mw
CY2021Q4	es	Amountof Capacity Provided Under Capacity Contract AmountofCapacityProvidedUnderCapacityContract	675	mw
CY2022	es	Derivative Instruments Gain Loss Recognized In Regulatory Asset Liability DerivativeInstrumentsGainLossRecognizedInRegulatoryAssetLiability	10100000	usd
CY2021	es	Derivative Instruments Gain Loss Recognized In Regulatory Asset Liability DerivativeInstrumentsGainLossRecognizedInRegulatoryAssetLiability	-7100000	usd
CY2020	es	Derivative Instruments Gain Loss Recognized In Regulatory Asset Liability DerivativeInstrumentsGainLossRecognizedInRegulatoryAssetLiability	-21200000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	185500000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	5100000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	200000	usd
CY2021Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	219400000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	28500000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	28300000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	43800000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	42400000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	35600000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	32300000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	93700000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	82500000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	201600000	usd
CY2022Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	375600000	usd
CY2021Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	473600000	usd
CY2022Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	20000000	usd
CY2021Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	40200000	usd
CY2022	us-gaap	Equity Securities Fv Ni Unrealized Loss EquitySecuritiesFvNiUnrealizedLoss	9700000	usd
CY2021	us-gaap	Equity Securities Fv Ni Unrealized Gain EquitySecuritiesFvNiUnrealizedGain	4400000	usd
CY2020	us-gaap	Equity Securities Fv Ni Unrealized Gain EquitySecuritiesFvNiUnrealizedGain	3700000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	201600000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	100000	usd
CY2022Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	16200000	usd
CY2022Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	185500000	usd
CY2021Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	214500000	usd
CY2022Q4	us-gaap	Equity Method Investments EquityMethodInvestments	2176100000	usd
CY2021Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1436300000	usd
CY2022	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	22900000	usd
CY2021	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	14200000	usd
CY2020	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	14200000	usd
CY2022	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	26200000	usd
CY2021	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	21600000	usd
CY2020	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	21800000	usd
CY2022Q4	es	Number Of Offshore Wind Projects NumberOfOffshoreWindProjects	3	project
CY2021	es	Numberof Companies That Transmit Hydro Electricity NumberofCompaniesThatTransmitHydroElectricity	2	company
CY2022	es	Numberof Companies That Transmit Hydro Electricity NumberofCompaniesThatTransmitHydroElectricity	2	company
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	500100000	usd
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	499700000	usd
CY2022	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	22300000	usd
CY2021	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	23900000	usd
CY2022	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	28900000	usd
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	29400000	usd
CY2022	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-4000000.0	usd
CY2021	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-5100000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	502700000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	500100000	usd
CY2022Q4	es	Interest Included In Payment To Settle Spent Nuclear Fuel Obligation InterestIncludedInPaymentToSettleSpentNuclearFuelObligation	8800000	usd
CY2021Q4	es	Interest Included In Payment To Settle Spent Nuclear Fuel Obligation InterestIncludedInPaymentToSettleSpentNuclearFuelObligation	8700000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	2008400000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	1950000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1400200000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	940200000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	2539200000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	12236000000	usd
CY2022Q4	es	Long Term Debt Maturities Repayments Of Principal Total LongTermDebtMaturitiesRepaymentsOfPrincipalTotal	21074000000	usd
CY2022Q4	es	Defined Benefit Plan Prepaid Assets DefinedBenefitPlanPrepaidAssets	1045500000	usd
CY2021Q4	es	Defined Benefit Plan Prepaid Assets DefinedBenefitPlanPrepaidAssets	272000000.0	usd
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	47300000	usd
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	9700000	usd
CY2022Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	135500000	usd
CY2021Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesCurrentAndNoncurrent	242500000	usd
CY2022	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.07
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.07
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	300592	shares
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	59900000	usd
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	55500000	usd
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	49400000	usd
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	3200000	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	903183	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	2430716	shares
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue	81.07
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	33400000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	28200000	usd
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	33900000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	8700000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	7300000	usd
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	8900000	usd
CY2022Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	24500000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y9M7D
CY2022	es	Effective Tax Rate Reconciliation Percent Tax Effecton Share Based Payments EffectiveTaxRateReconciliationPercentTaxEffectonShareBasedPayments	0.26
CY2022	es	Effective Income Tax Rate Reconciliation Excess Stock Benefit EffectiveIncomeTaxRateReconciliationExcessStockBenefit	2100000	usd
CY2021	es	Effective Income Tax Rate Reconciliation Excess Stock Benefit EffectiveIncomeTaxRateReconciliationExcessStockBenefit	4000000	usd
CY2020	es	Effective Income Tax Rate Reconciliation Excess Stock Benefit EffectiveIncomeTaxRateReconciliationExcessStockBenefit	6600000	usd
CY2022Q4	us-gaap	Deferred Compensation Cashbased Arrangements Liability Classified Noncurrent DeferredCompensationCashbasedArrangementsLiabilityClassifiedNoncurrent	43400000	usd
CY2021Q4	us-gaap	Deferred Compensation Cashbased Arrangements Liability Classified Noncurrent DeferredCompensationCashbasedArrangementsLiabilityClassifiedNoncurrent	42800000	usd
CY2020Q4	us-gaap	Deferred Compensation Cashbased Arrangements Liability Classified Noncurrent DeferredCompensationCashbasedArrangementsLiabilityClassifiedNoncurrent	45700000	usd
CY2022Q4	es	Deferred Compensation Cash Based Arrangements Expense Pertaining To Deferred Benefits DeferredCompensationCashBasedArrangementsExpensePertainingToDeferredBenefits	10900000	usd
CY2021Q4	es	Deferred Compensation Cash Based Arrangements Expense Pertaining To Deferred Benefits DeferredCompensationCashBasedArrangementsExpensePertainingToDeferredBenefits	2200000	usd
CY2020Q4	es	Deferred Compensation Cash Based Arrangements Expense Pertaining To Deferred Benefits DeferredCompensationCashBasedArrangementsExpensePertainingToDeferredBenefits	3300000	usd
CY2022Q4	us-gaap	Pension And Other Postretirement And Postemployment Benefit Plans Liabilities Current And Noncurrent PensionAndOtherPostretirementAndPostemploymentBenefitPlansLiabilitiesCurrentAndNoncurrent	9200000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	95800000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	21500000	usd
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	73600000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	13600000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	-21600000	usd
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	19100000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	109400000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	-100000	usd
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	92700000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	198800000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	199700000	usd
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	173500000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	148000000.0	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	147400000	usd
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	83700000	usd
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	346800000	usd
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	347100000	usd
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	257200000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2600000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2600000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2800000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2800000	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	3700000	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	3700000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	453600000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	344200000	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	3700000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	346200000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1866000000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1572300000	usd
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1558900000	usd
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	391900000	usd
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	330200000	usd
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	327400000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	-17100000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	-18100000	usd
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Depreciation IncomeTaxReconciliationNondeductibleExpenseDepreciation	-11100000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2600000	usd
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2600000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2800000	usd
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	2800000	usd
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Investment IncomeTaxReconciliationTaxCreditsInvestment	3700000	usd
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	75900000	usd
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	54400000	usd
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	44900000	usd
CY2022	us-gaap	Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends IncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends	5100000	usd
CY2021	us-gaap	Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends IncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends	5100000	usd
CY2020	us-gaap	Income Tax Rate Reconciliation Deductions Employee Stock Ownership Plan Dividends IncomeTaxRateReconciliationDeductionsEmployeeStockOwnershipPlanDividends	5100000	usd
CY2022	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	51600000	usd
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	44600000	usd
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	33400000	usd
CY2022	es	Effective Income Tax Rate Reconciliation Excess Stock Benefit EffectiveIncomeTaxRateReconciliationExcessStockBenefit	2100000	usd
CY2021	es	Effective Income Tax Rate Reconciliation Excess Stock Benefit EffectiveIncomeTaxRateReconciliationExcessStockBenefit	4000000.0	usd
CY2020	es	Effective Income Tax Rate Reconciliation Excess Stock Benefit EffectiveIncomeTaxRateReconciliationExcessStockBenefit	6600000	usd
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	-49100000	usd
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	-69100000	usd
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense Amortization IncomeTaxReconciliationNondeductibleExpenseAmortization	-48700000	usd
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	10200000	usd
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	14100000	usd
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	15700000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	453600000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	344200000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	346200000	usd
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.243
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.219
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.222
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	228900000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	270800000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	53800000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	76800000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	529500000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	390700000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	125500000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	104100000	usd
CY2022Q4	es	Deferred Tax Assets Tax Effect Tax Regulatory Liabilities DeferredTaxAssetsTaxEffectTaxRegulatoryLiabilities	762900000	usd
CY2021Q4	es	Deferred Tax Assets Tax Effect Tax Regulatory Liabilities DeferredTaxAssetsTaxEffectTaxRegulatoryLiabilities	783400000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	16700000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	7500000	usd
CY2022Q4	es	Deferred Tax Asset Purchase Accounting DeferredTaxAssetPurchaseAccounting	62000000.0	usd
CY2021Q4	es	Deferred Tax Asset Purchase Accounting DeferredTaxAssetPurchaseAccounting	67200000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	176600000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	196600000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1955900000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	1897100000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	82800000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	61500000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1873100000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1835600000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4793700000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	4426000000	usd
CY2022Q4	es	Deferred Tax Liabilities Resulting From Property Tax Accruals And Other DeferredTaxLiabilitiesResultingFromPropertyTaxAccrualsAndOther	95300000	usd
CY2021Q4	es	Deferred Tax Liabilities Resulting From Property Tax Accruals And Other DeferredTaxLiabilitiesResultingFromPropertyTaxAccrualsAndOther	88100000	usd
CY2022Q4	es	Deferred Tax Liabilities Regulatory Assets Other Regulatory Deferrals DeferredTaxLiabilitiesRegulatoryAssetsOtherRegulatoryDeferrals	1251900000	usd
CY2021Q4	es	Deferred Tax Liabilities Regulatory Assets Other Regulatory Deferrals DeferredTaxLiabilitiesRegulatoryAssetsOtherRegulatoryDeferrals	1260300000	usd
CY2022Q4	es	Deferred Tax Liabilities Regulatory Assets Tax Effect Tax Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssetsTaxEffectTaxRegulatoryAssets	271700000	usd
CY2021Q4	es	Deferred Tax Liabilities Regulatory Assets Tax Effect Tax Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssetsTaxEffectTaxRegulatoryAssets	257800000	usd
CY2022Q4	es	Deferred Tax Liabilities Goodwill Regulatory Asset DeferredTaxLiabilitiesGoodwillRegulatoryAsset	76800000	usd
CY2021Q4	es	Deferred Tax Liabilities Goodwill Regulatory Asset DeferredTaxLiabilitiesGoodwillRegulatoryAsset	81400000	usd
CY2022Q4	es	Deferred Tax Liabilities Employee Benefits DeferredTaxLiabilitiesEmployeeBenefits	305500000	usd
CY2021Q4	es	Deferred Tax Liabilities Employee Benefits DeferredTaxLiabilitiesEmployeeBenefits	174700000	usd
CY2022Q4	es	Deferred Tax Liabilities Regulatory Assets Derivative Assets DeferredTaxLiabilitiesRegulatoryAssetsDerivativeAssets	10500000	usd
CY2021Q4	es	Deferred Tax Liabilities Regulatory Assets Derivative Assets DeferredTaxLiabilitiesRegulatoryAssetsDerivativeAssets	14900000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	135600000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	129500000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	6941000000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	6432700000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	11500000	usd
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	55000000.0	usd
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	11900000	usd
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1400000	usd
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	6500000	usd
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	61800000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	11300000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	300000	usd
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	7000000.0	usd
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	65800000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	2400000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	7800000	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	67100000	usd
CY2021Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	100000	usd
CY2022Q4	us-gaap	Income Tax Examination Penalties And Interest Accrued IncomeTaxExaminationPenaltiesAndInterestAccrued	100000	usd
CY2020Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	102400000	usd
CY2021	us-gaap	Accrual For Environmental Loss Contingencies Charges To Expense For New Losses AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses	23400000	usd
CY2021	us-gaap	Accrual For Environmental Loss Contingencies Payments1 AccrualForEnvironmentalLossContingenciesPayments1	10400000	usd
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	115400000	usd
CY2022	us-gaap	Accrual For Environmental Loss Contingencies Charges To Expense For New Losses AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses	12600000	usd
CY2022	us-gaap	Accrual For Environmental Loss Contingencies Payments1 AccrualForEnvironmentalLossContingenciesPayments1	5400000	usd
CY2022Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	122600000	usd
CY2022	es	Environmental Site Quantity EnvironmentalSiteQuantity	59	site
CY2021	es	Environmental Site Quantity EnvironmentalSiteQuantity	61	site
CY2022Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On First Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFirstAnniversary	1324600000	usd
CY2022Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Second Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnSecondAnniversary	1500600000	usd
CY2022Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Third Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnThirdAnniversary	1411400000	usd
CY2022Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fourth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFourthAnniversary	1323000000	usd
CY2022Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance On Fifth Anniversary UnrecordedUnconditionalPurchaseObligationBalanceOnFifthAnniversary	1304600000	usd
CY2022Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Due After Five Years UnrecordedUnconditionalPurchaseObligationDueAfterFiveYears	9685900000	usd
CY2022Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance Sheet Amount UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount	16550100000	usd
CY2022	es	Contractual Obligation Term Of Contract ContractualObligationTermOfContract	P20Y
CY2022	es	Percentageof Costsor Benefits Borne Under Capacity Related Contractsby United Illuminated Company PercentageofCostsorBenefitsBorneUnderCapacityRelatedContractsbyUnitedIlluminatedCompany	0.20
CY2022Q4	es	Amountof Capacity Provided Under Capacity Contract AmountofCapacityProvidedUnderCapacityContract	674	mw
CY2021Q4	es	Amountof Capacity Provided Under Capacity Contract AmountofCapacityProvidedUnderCapacityContract	675	mw
CY2022	es	Renewable Energy Costs Incurred RenewableEnergyCostsIncurred	678100000	usd
CY2021	es	Renewable Energy Costs Incurred RenewableEnergyCostsIncurred	609200000	usd
CY2020	es	Renewable Energy Costs Incurred RenewableEnergyCostsIncurred	584200000	usd
CY2022	es	Natural Gas Procurement Costs Incurred NaturalGasProcurementCostsIncurred	1042800000	usd
CY2021	es	Natural Gas Procurement Costs Incurred NaturalGasProcurementCostsIncurred	712700000	usd
CY2020	es	Natural Gas Procurement Costs Incurred NaturalGasProcurementCostsIncurred	453400000	usd
CY2022	es	Supply And Stranded Costs Obligations Incurred SupplyAndStrandedCostsObligationsIncurred	61600000	usd
CY2021	es	Supply And Stranded Costs Obligations Incurred SupplyAndStrandedCostsObligationsIncurred	56400000	usd
CY2020	es	Supply And Stranded Costs Obligations Incurred SupplyAndStrandedCostsObligationsIncurred	62700000	usd
CY2022	es	Peaker Cfd Expense Incurred PeakerCfdExpenseIncurred	13400000	usd
CY2021	es	Peaker Cfd Expense Incurred PeakerCfdExpenseIncurred	24300000	usd
CY2020	es	Peaker Cfd Expense Incurred PeakerCfdExpenseIncurred	22700000	usd
CY2022	es	Transmission Support Commitment Costs Incurred TransmissionSupportCommitmentCostsIncurred	12700000	usd
CY2021	es	Transmission Support Commitment Costs Incurred TransmissionSupportCommitmentCostsIncurred	15400000	usd
CY2020	es	Transmission Support Commitment Costs Incurred TransmissionSupportCommitmentCostsIncurred	22100000	usd
CY2022Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	4200000	usd
CY2021Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	7300000	usd
CY2018Q4	es	Loss Contingency Percentage Of Base Roe Reasonably Justified LossContingencyPercentageOfBaseROEReasonablyJustified	0.1041
CY2018Q4	es	Loss Contingency Percentage Of Incentive Cap On Total Roe LossContingencyPercentageOfIncentiveCapOnTotalROE	0.1308
CY2018Q4	es	Loss Contingency Percentage Of Base Roe Reasonably Justified LossContingencyPercentageOfBaseROEReasonablyJustified	0.1041
CY2016Q3	es	Capacity Required For Installation Of Distribution Cable CapacityRequiredForInstallationOfDistributionCable	115	kv
CY2021Q2	es	Loss Contingency Allowed Rate Of Roe Downward Adjustment LossContingencyAllowedRateOfROEDownwardAdjustment	0.0090
CY2021Q2	es	Loss Contingency Allowed Rate Of Roe LossContingencyAllowedRateOfROE	0.0925
CY2021Q4	es	Loss Contingency Basis Points Reduction To Return On Equity Scenario One LossContingencyBasisPointsReductionToReturnOnEquityScenarioOne	0.0090
CY2021Q4	es	Loss Contingency Basis Points Reduction To Return On Equity Scenario Two LossContingencyBasisPointsReductionToReturnOnEquityScenarioTwo	0.0045
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	8300000	usd
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	4600000	usd
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	2600000	usd
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	2000000.0	usd
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	3900000	usd
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	1400000	usd
CY2022	es	Finance Lease Cost FinanceLeaseCost	10300000	usd
CY2021	es	Finance Lease Cost FinanceLeaseCost	8500000	usd
CY2020	es	Finance Lease Cost FinanceLeaseCost	4000000.0	usd
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	11600000	usd
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	12200000	usd
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	11100000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	78100000	usd
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	61000000.0	usd
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	57800000	usd
CY2022	us-gaap	Lease Cost LeaseCost	100000000.0	usd
CY2021	us-gaap	Lease Cost LeaseCost	81700000	usd
CY2020	us-gaap	Lease Cost LeaseCost	72900000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	56900000	usd
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	47200000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	9000000.0	usd
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	10000000.0	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	47900000	usd
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	37200000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	56900000	usd
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	47200000	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	54500000	usd
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	58000000.0	usd
CY2022Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	3800000	usd
CY2021Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	3900000	usd
CY2022Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	54200000	usd
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	55400000	usd
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	58000000.0	usd
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	59300000	usd
CY2022Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P11Y
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P13Y
CY2022Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P15Y
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P16Y
CY2022Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.032
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.041
CY2022Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.027
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.027
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	11300000	usd
CY2022	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	2000000.0	usd
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	3900000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	18900000	usd
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	3500000	usd
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	12100000	usd
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	3400000	usd
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	4100000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	2100000	usd
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	2300000	usd
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	10900000	usd
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	1700000	usd
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	2800000	usd
CY2022Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	21400000	usd
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	600000	usd
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	700000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	10300000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	5900000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	9300000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	5900000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	6400000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	5900000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	5500000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	5400000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	5200000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	5400000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	31200000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	50900000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	67900000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	79400000	usd
CY2022Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	11000000.0	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	56900000	usd
CY2022Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	58000000.0	usd
CY2022	us-gaap	Oci Before Reclassifications Before Tax Attributable To Parent OciBeforeReclassificationsBeforeTaxAttributableToParent	-4100000	usd
CY2021	us-gaap	Oci Before Reclassifications Before Tax Attributable To Parent OciBeforeReclassificationsBeforeTaxAttributableToParent	23400000	usd
CY2022	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-7000000.0	usd
CY2021	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-10700000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2900000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	34100000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax	1300000	usd
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax	6000000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansBeforeReclassificationAdjustmentsTax	8300000	usd
CY2022	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	7000000.0	usd
CY2021	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	10700000	usd
CY2020	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	7900000	usd
CY2022Q4	us-gaap	Ratio Of Indebtedness To Net Capital1 RatioOfIndebtednessToNetCapital1	0.65
CY2022Q4	us-gaap	Retained Earnings Unappropriated RetainedEarningsUnappropriated	5530000000	usd
CY2022Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	5
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	5
CY2022Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	380000000	shares
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	380000000	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	359984073	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	357818402	shares
CY2022Q2	es	Sale Of Stock Issuance Of Common Stock Maximum SaleOfStockIssuanceOfCommonStockMaximum	1200000000	usd
CY2022	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	2165671	shares
CY2022	us-gaap	Sale Of Stock Consideration Received On Transaction SaleOfStockConsiderationReceivedOnTransaction	197100000	usd
CY2022Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	11540218	shares
CY2021Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	13415206	shares
CY2022Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	348443855	shares
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	344403196	shares
CY2021Q4	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	38100000	usd
CY2022Q4	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	155600000	usd
CY2021Q4	us-gaap	Preferred Stock Value Outstanding PreferredStockValueOutstanding	155600000	usd
CY2022Q4	us-gaap	Redeemable Noncontrolling Interest Equity Preferred Carrying Amount RedeemableNoncontrollingInterestEquityPreferredCarryingAmount	155600000	usd
CY2021Q4	us-gaap	Redeemable Noncontrolling Interest Equity Preferred Carrying Amount RedeemableNoncontrollingInterestEquityPreferredCarryingAmount	155600000	usd
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	39560	shares
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1404900000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1220500000	usd
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1205200000	usd
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	346783444	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	343972926	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	338836147	shares
CY2022	es	Incremental Common Shares Attributable To Dilutive Effect Of Share Based Payment Arrangements And Other IncrementalCommonSharesAttributableToDilutiveEffectOfShareBasedPaymentArrangementsAndOther	463324	shares
CY2021	es	Incremental Common Shares Attributable To Dilutive Effect Of Share Based Payment Arrangements And Other IncrementalCommonSharesAttributableToDilutiveEffectOfShareBasedPaymentArrangementsAndOther	658130	shares
CY2020	es	Incremental Common Shares Attributable To Dilutive Effect Of Share Based Payment Arrangements And Other IncrementalCommonSharesAttributableToDilutiveEffectOfShareBasedPaymentArrangementsAndOther	738994	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Equity Forward Agreements IncrementalCommonSharesAttributableToEquityForwardAgreements	0	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Equity Forward Agreements IncrementalCommonSharesAttributableToEquityForwardAgreements	0	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Equity Forward Agreements IncrementalCommonSharesAttributableToEquityForwardAgreements	271921	shares
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	463324	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	658130	shares
CY2020	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	1010915	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	347246768	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	344631056	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	339847062	shares
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.05
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.55
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.56
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.05
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.54
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.55
CY2022	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	12270200000	usd
CY2022	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	5300000	usd
CY2022	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	13800000	usd
CY2022	us-gaap	Revenues Revenues	12289300000	usd
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	9815000000	usd
CY2021	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	41700000	usd
CY2021	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	6400000	usd
CY2021	us-gaap	Revenues Revenues	9863100000	usd
CY2020	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	8766500000	usd
CY2020	us-gaap	Revenue Not From Contract With Customer RevenueNotFromContractWithCustomer	130000000.0	usd
CY2020	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	7900000	usd
CY2020	us-gaap	Revenues Revenues	8904400000	usd
CY2022	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	4000000	usd
CY2021	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	4800000	usd
CY2020	us-gaap	Operating Lease Lease Income OperatingLeaseLeaseIncome	4300000	usd
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	reportablesegment
CY2022	us-gaap	Revenues Revenues	12289300000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1643100000	usd
CY2022	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	8448000000	usd
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	2198200000	usd
CY2022	us-gaap	Interest Expense InterestExpense	678300000	usd
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	50500000	usd
CY2022	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	295600000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	453600000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	1412400000	usd
CY2022	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	7500000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1404900000	usd
CY2022Q4	us-gaap	Assets Assets	53230900000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3441900000	usd
CY2021	us-gaap	Revenues Revenues	9863100000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1335000000	usd
CY2021	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	6534800000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	1993300000	usd
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	25600000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	135700000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	344200000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1228000000	usd
CY2021	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	7500000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1220500000	usd
CY2021Q4	us-gaap	Assets Assets	48492100000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3175100000	usd
CY2020	us-gaap	Revenues Revenues	8904400000	usd
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1159100000	usd
CY2020	us-gaap	Utilities Operating Expense Other UtilitiesOperatingExpenseOther	5756600000	usd
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	1988700000	usd
CY2020	us-gaap	Investment Income Interest InvestmentIncomeInterest	4800000	usd
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	103800000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	346200000	usd
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1212700000	usd
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	7500000	usd
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1205200000	usd
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2943000000	usd
CY2020	us-gaap	Business Acquisitions Pro Forma Revenue BusinessAcquisitionsProFormaRevenue	154800000	usd
CY2020	us-gaap	Business Acquisitions Pro Forma Income Loss From Continuing Operations Before Changes In Accounting And Extraordinary Items Net Of Tax BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax	13900000	usd
CY2020Q4	us-gaap	Goodwill Goodwill	4446000000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	4477300000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	4522600000	usd
CY2022Q4	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2020	es	Accounts Receivable Allowance For Credit Loss Increase From Business Combination AccountsReceivableAllowanceForCreditLossIncreaseFromBusinessCombination	24200000	usd

Files In Submission

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$ES
Eversource Energy Stock $es

2023 Q1 Form 10-K Financial Statement

#000007274123000004 Filed on February 15, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ES Eversource Energy Stock $es

2023 Q1 Form 10-K Financial Statement

#000007274123000004 Filed on February 15, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$ES
Eversource Energy Stock $es