$SR
Spire Inc Stock $sr

$sr Overview Financials Valuation SEC Filings Company Website

2023 Q4 Form 10-K Financial Statement

#000143774923032284 Filed on November 16, 2023

Income Statement

Concept	2023 Q4	2023 Q3	2023
Revenue	$756.6M	$310.4M	$2.666B
YoY Change	-7.05%	-1.21%	21.28%
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	$67.00M	$65.80M	$254.8M
YoY Change	7.89%	7.69%	7.37%
% of Gross Profit
Operating Expenses	$617.4M	$314.3M	$2.248B
YoY Change	-6.99%	10.51%	25.55%
Operating Profit	$139.2M		$418.6M
YoY Change	-7.32%		2.55%
Interest Expense	$50.60M	-$48.20M	$185.7M
YoY Change	-216.06%	40.12%	55.01%
% of Operating Profit	36.35%		44.36%
Other Income/Expense, Net	$17.50M	$4.100M	$23.40M
YoY Change	191.67%	-783.33%	-368.97%
Pretax Income	$106.1M	-$48.00M	$256.3M
YoY Change	-5.77%	823.08%	-8.37%
Income Tax	$21.00M	-$16.90M	$38.80M
% Of Pretax Income	19.79%		15.14%
Net Earnings	$85.10M	-$34.70M	$217.5M
YoY Change	-6.48%	388.73%	-1.49%
Net Earnings / Revenue	11.25%	-11.18%	8.16%
Basic Earnings Per Share	$1.52		$3.86
Diluted Earnings Per Share	$1.52	-$0.66	$3.85
COMMON SHARES
Basic Shares Outstanding	53.18M	52.60M	52.50M
Diluted Shares Outstanding	53.60M		52.60M

Balance Sheet

Concept	2023 Q4	2023 Q3	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$4.800M	$6.000M	$6.000M
YoY Change	0.0%	-7.69%	-7.69%
Cash & Equivalents	$4.800M	$5.600M	$6.000M
Short-Term Investments
Other Short-Term Assets	$72.80M	$84.80M	$503.0M
YoY Change	-49.86%	-30.89%	-6.94%
Inventory	$276.6M	$280.0M	$280.0M
Prepaid Expenses	$43.30M	$48.20M
Receivables	$544.0M	$289.0M	$289.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$1.220B	$1.077B	$1.077B
YoY Change	-25.15%	-32.36%	-32.35%
LONG-TERM ASSETS
Property, Plant & Equipment	$687.1M	$628.5M	$6.478B
YoY Change	35.02%	27.9%	9.14%
Goodwill	$1.172B	$1.172B
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments	$105.5M	$103.0M	$103.0M
YoY Change	12.83%	17.31%	17.31%
Other Assets	$303.0M	$305.9M	$1.485B
YoY Change	16.36%	18.52%	14.51%
Total Long-Term Assets	$9.412B	$9.237B	$9.237B
YoY Change	8.21%	8.77%	8.78%
TOTAL ASSETS
Total Short-Term Assets	$1.220B	$1.077B	$1.077B
Total Long-Term Assets	$9.412B	$9.237B	$9.237B
Total Assets	$10.63B	$10.31B	$10.31B
YoY Change	2.94%	2.28%	2.28%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$293.8M	$253.1M	$253.0M
YoY Change	-42.03%	-59.01%	-59.02%
Accrued Expenses	$26.10M	$54.00M	$54.00M
YoY Change	-14.71%	7.57%	-4.76%
Deferred Revenue	$25.00M	$20.90M
YoY Change	47.93%	11.76%
Short-Term Debt	$1.048B	$955.5M	$956.0M
YoY Change	-14.63%	-7.9%	-7.86%
Long-Term Debt Due	$457.0M	$156.6M	$157.0M
YoY Change	78.1%	-44.31%	-44.17%
Total Short-Term Liabilities	$2.211B	$1.755B	$1.755B
YoY Change	-8.08%	-25.42%	-25.43%
LONG-TERM LIABILITIES
Long-Term Debt	$3.248B	$3.554B	$3.554B
YoY Change	2.9%	20.13%	20.13%
Other Long-Term Liabilities	$140.9M	$139.6M	$1.327B
YoY Change	-10.03%	-14.25%	4.91%
Total Long-Term Liabilities	$3.389B	$3.694B	$4.881B
YoY Change	2.29%	18.34%	15.57%
TOTAL LIABILITIES
Total Short-Term Liabilities	$2.211B	$1.755B	$1.755B
Total Long-Term Liabilities	$3.389B	$3.694B	$4.881B
Total Liabilities	$5.599B	$5.449B	$7.396B
YoY Change	-2.07%	-0.47%	1.8%
SHAREHOLDERS EQUITY
Retained Earnings	$997.3M	$958.0M
YoY Change	4.65%	5.8%
Common Stock	$55.00M	$53.20M
YoY Change	4.76%	1.33%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.051B	$2.917B	$2.917B
YoY Change
Total Liabilities & Shareholders Equity	$10.63B	$10.31B	$10.31B
YoY Change	2.94%	2.28%	2.28%

Cashflow Statement

Concept	2023 Q4	2023 Q3	2023
OPERATING ACTIVITIES
Net Income	$85.10M	-$34.70M	$217.5M
YoY Change	-6.48%	388.73%	-1.49%
Depreciation, Depletion And Amortization	$67.00M	$65.80M	$254.8M
YoY Change	7.89%	7.69%	7.37%
Cash From Operating Activities	$70.00M	$36.10M	$440.2M
YoY Change	-140.98%	-124.13%	700.36%
INVESTING ACTIVITIES
Capital Expenditures	$226.5M	$179.2M	$662.5M
YoY Change	46.32%	-219.71%	19.97%
Acquisitions
YoY Change
Other Investing Activities	-$1.300M	$100.0K	-$4.000M
YoY Change	-58.06%	-92.31%	-27.27%
Cash From Investing Activities	-$225.2M	-$179.1M	-$695.5M
YoY Change	48.45%	20.69%	27.22%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$41.90M
YoY Change			-19.27%
Debt Paid & Issued, Net	$6.600M		$281.2M
YoY Change	-78.85%		403.94%
Cash From Financing Activities	$154.7M	143.8M	$260.6M
YoY Change	-51.81%	-50.14%	-47.97%
NET CHANGE
Cash From Operating Activities	$70.00M	36.10M	$440.2M
Cash From Investing Activities	-$225.2M	-179.1M	-$695.5M
Cash From Financing Activities	$154.7M	143.8M	$260.6M
Net Change In Cash	-$500.0K	800.0K	$5.300M
YoY Change	-66.67%	-108.33%	-42.39%
FREE CASH FLOW
Cash From Operating Activities	$70.00M	$36.10M	$440.2M
Capital Expenditures	$226.5M	$179.2M	$662.5M
Free Cash Flow	-$156.5M	-$143.1M	-$222.3M
YoY Change	-51.93%	-143200.0%	-55.29%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	71100000	usd
CY2022Q3	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	50700000	usd
CY2023Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2022Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2023Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	70000000
CY2022Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	70000000
CY2023Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	53200000
CY2023Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	53200000
CY2022Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	52500000
CY2022Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	52500000
CY2023Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2022Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		usd
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.6
CY2021	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	1.475
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.74
CY2022	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	1.475
CY2023	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.88
CY2023	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	1.475
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CY2022Q3	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	0	usd
CY2023	sr	Implementation Period Used To Calculate Return On Plan Assets ImplementationPeriodUsedToCalculateReturnOnPlanAssets	P4Y
CY2022	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	15500000	usd
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	15500000	usd
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	pure
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CY2023	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false
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CY2023	dei	Document Type DocumentType	10-K
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-09-30
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	1-16681
CY2023	dei	Entity Registrant Name EntityRegistrantName	Spire Inc.
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	700 Market Street
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	St. Louis
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	MO
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	63101
CY2023	dei	City Area Code CityAreaCode	314
CY2023	dei	Local Phone Number LocalPhoneNumber	342-0500
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MO
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	74-2976504
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2023	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2023	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q1	dei	Entity Public Float EntityPublicFloat	3580140878	usd
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CY2023	dei	Auditor Firm AuditorFirmId	34
CY2023	dei	Auditor Name AuditorName	Deloitte & Touche LLP
CY2023	dei	Auditor Location AuditorLocation	St. Louis, Missouri
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CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	213100000	usd
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CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	408200000	usd
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	450200000	usd
CY2023	us-gaap	Interest Expense InterestExpense	185700000	usd
CY2022	us-gaap	Interest Expense InterestExpense	119800000	usd
CY2021	us-gaap	Interest Expense InterestExpense	106600000	usd
CY2023	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	23400000	usd
CY2022	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-8700000	usd
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-3400000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	256300000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	279700000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	340200000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	38800000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	58900000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	68500000	usd
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CY2022	us-gaap	Net Income Loss NetIncomeLoss	220800000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	271700000	usd
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CY2022	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14800000	usd
CY2021	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14800000	usd
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CY2022	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	300000	usd
CY2021	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	400000	usd
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CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	205700000	usd
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CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.96
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CY2022Q3	us-gaap	Public Utilities Property Plant And Equipment Transmission And Distribution PublicUtilitiesPropertyPlantAndEquipmentTransmissionAndDistribution	7664900000	usd
CY2023Q3	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2431200000	usd
CY2022Q3	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	2294500000	usd
CY2023Q3	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	5778900000	usd
CY2022Q3	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	5370400000	usd
CY2023Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	628500000	usd
CY2022Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	491400000	usd
CY2023Q3	us-gaap	Other Investments OtherInvestments	102600000	usd
CY2022Q3	us-gaap	Other Investments OtherInvestments	87800000	usd
CY2023Q3	sr	Other Property And Investments OtherPropertyAndInvestments	731100000	usd
CY2022Q3	sr	Other Property And Investments OtherPropertyAndInvestments	579200000	usd
CY2023Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	5600000	usd
CY2022Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	6500000	usd
CY2023Q3	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	192400000	usd
CY2022Q3	us-gaap	Accounts Receivable Gross Current AccountsReceivableGrossCurrent	210800000	usd
CY2023Q3	sr	Accounts Receivable Other AccountsReceivableOther	128600000	usd
CY2022Q3	sr	Accounts Receivable Other AccountsReceivableOther	443800000	usd
CY2023Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	32500000	usd
CY2022Q3	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	31900000	usd
CY2023Q3	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	22000000	usd
CY2022Q3	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	21300000	usd
CY2023Q3	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	223700000	usd
CY2022Q3	us-gaap	Energy Related Inventory Natural Gas In Storage EnergyRelatedInventoryNaturalGasInStorage	371800000	usd
CY2023Q3	us-gaap	Energy Related Inventory Propane Gas EnergyRelatedInventoryPropaneGas	8600000	usd
CY2022Q3	us-gaap	Energy Related Inventory Propane Gas EnergyRelatedInventoryPropaneGas	8600000	usd
CY2023Q3	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	47200000	usd
CY2022Q3	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	41900000	usd
CY2023Q3	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	348300000	usd
CY2022Q3	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	355400000	usd
CY2023Q3	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	48200000	usd
CY2022Q3	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	41100000	usd
CY2023Q3	us-gaap	Other Assets Current OtherAssetsCurrent	84800000	usd
CY2022Q3	us-gaap	Other Assets Current OtherAssetsCurrent	122700000	usd
CY2023Q3	us-gaap	Assets Current AssetsCurrent	1076900000	usd
CY2022Q3	us-gaap	Assets Current AssetsCurrent	1592000000	usd
CY2023Q3	us-gaap	Goodwill Goodwill	1171600000	usd
CY2022Q3	us-gaap	Goodwill Goodwill	1171600000	usd
CY2023Q3	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1249200000	usd
CY2022Q3	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1112400000	usd
CY2023Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	305900000	usd
CY2022Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	258100000	usd
CY2023Q3	sr	Regulatory And Other Assets Noncurrent RegulatoryAndOtherAssetsNoncurrent	2726700000	usd
CY2022Q3	sr	Regulatory And Other Assets Noncurrent RegulatoryAndOtherAssetsNoncurrent	2542100000	usd
CY2023Q3	us-gaap	Assets Assets	10313600000	usd
CY2022Q3	us-gaap	Assets Assets	10083700000	usd
CY2023Q3	us-gaap	Common Stock Value CommonStockValue	53200000	usd
CY2022Q3	us-gaap	Common Stock Value CommonStockValue	52500000	usd
CY2023Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1616500000	usd
CY2022Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	1571300000	usd
CY2023Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	958000000	usd
CY2022Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	905500000	usd
CY2023Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	47600000	usd
CY2022Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	47200000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	2917300000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	2818500000	usd
CY2023Q3	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	16500000	usd
CY2022Q3	us-gaap	Temporary Equity Carrying Amount Attributable To Parent TemporaryEquityCarryingAmountAttributableToParent	13100000	usd
CY2023Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3554000000	usd
CY2022Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2958500000	usd
CY2023Q3	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	6487800000	usd
CY2022Q3	us-gaap	Capitalization Longterm Debt And Equity CapitalizationLongtermDebtAndEquity	5790100000	usd
CY2023Q3	sr	Longterm Debt Current Maturities Excluding Notes Payable LongtermDebtCurrentMaturitiesExcludingNotesPayable	156600000	usd
CY2022Q3	sr	Longterm Debt Current Maturities Excluding Notes Payable LongtermDebtCurrentMaturitiesExcludingNotesPayable	281200000	usd
CY2023Q3	us-gaap	Notes Payable Current NotesPayableCurrent	955500000	usd
CY2022Q3	us-gaap	Notes Payable Current NotesPayableCurrent	1037500000	usd
CY2023Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	253100000	usd
CY2022Q3	us-gaap	Accounts Payable Current AccountsPayableCurrent	617400000	usd
CY2023Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	20900000	usd
CY2022Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	18700000	usd
CY2023Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	47000000	usd
CY2022Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	50200000	usd
CY2023Q3	us-gaap	Contract With Customer Refund Liability Current ContractWithCustomerRefundLiabilityCurrent	27700000	usd
CY2022Q3	us-gaap	Contract With Customer Refund Liability Current ContractWithCustomerRefundLiabilityCurrent	28200000	usd
CY2023Q3	us-gaap	Taxes Payable Current TaxesPayableCurrent	104100000	usd
CY2022Q3	us-gaap	Taxes Payable Current TaxesPayableCurrent	90100000	usd
CY2023Q3	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	7300000	usd
CY2022Q3	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	3700000	usd
CY2023Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	183200000	usd
CY2022Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	226600000	usd
CY2023Q3	us-gaap	Liabilities Current LiabilitiesCurrent	1755400000	usd
CY2022Q3	us-gaap	Liabilities Current LiabilitiesCurrent	2353600000	usd
CY2023Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	743700000	usd
CY2022Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	675100000	usd
CY2023Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	137300000	usd
CY2022Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	163000000	usd
CY2023Q3	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	577400000	usd
CY2022Q3	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	520900000	usd
CY2023Q3	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	472400000	usd
CY2022Q3	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	418200000	usd
CY2023Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	139600000	usd
CY2022Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	162800000	usd
CY2023Q3	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	2070400000	usd
CY2022Q3	us-gaap	Liabilities Other Than Longterm Debt Noncurrent LiabilitiesOtherThanLongtermDebtNoncurrent	1940000000	usd
CY2023Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10313600000	usd
CY2022Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	10083700000	usd
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	2522300000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	271700000	usd
CY2021	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	1600000	usd
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	9100000	usd
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	usd
CY2021	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	1100000	usd
CY2021	sr	Adjustments To Additional Paid In Capital Equity Stock Units Issued AdjustmentsToAdditionalPaidInCapitalEquityStockUnitsIssued	-40800000	usd
CY2021	sr	Temporary Equity Adjustment To Redemption Value TemporaryEquityAdjustmentToRedemptionValue	1300000	usd
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	135900000	usd
CY2021	us-gaap	Dividends Preferred Stock DividendsPreferredStock	14800000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	44800000	usd
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	2658200000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	220800000	usd
CY2022	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	50300000	usd
CY2022	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	1600000	usd
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	4100000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	usd
CY2022	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	1800000	usd
CY2022	us-gaap	Dividends Common Stock DividendsCommonStock	143500000	usd
CY2022	us-gaap	Dividends Preferred Stock DividendsPreferredStock	14800000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	43600000	usd
CY2022Q3	us-gaap	Stockholders Equity StockholdersEquity	2818500000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	217500000	usd
CY2023	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	40500000	usd
CY2023	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	1500000	usd
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	5300000	usd
CY2023	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	usd
CY2023	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	1400000	usd
CY2023	sr	Temporary Equity Adjustment To Redemption Value TemporaryEquityAdjustmentToRedemptionValue	2300000	usd
CY2023	us-gaap	Dividends Common Stock DividendsCommonStock	152500000	usd
CY2023	us-gaap	Dividends Preferred Stock DividendsPreferredStock	14800000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	400000	usd
CY2023Q3	us-gaap	Stockholders Equity StockholdersEquity	2917300000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	217500000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	220800000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	271700000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	254800000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	237300000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	213100000	usd
CY2023	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	36900000	usd
CY2022	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	57900000	usd
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	67000000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-334200000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	26500000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	343000000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-142800000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	117200000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	111000000	usd
CY2023	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	68700000	usd
CY2022	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	409000000	usd
CY2021	us-gaap	Increase Decrease In Regulatory Assets And Liabilities IncreaseDecreaseInRegulatoryAssetsAndLiabilities	-76600000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-389200000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	190700000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	177700000	usd
CY2023	sr	Increase Decrease In Delayed Advances Customer Billings IncreaseDecreaseInDelayedAdvancesCustomerBillings	1500000	usd
CY2022	sr	Increase Decrease In Delayed Advances Customer Billings IncreaseDecreaseInDelayedAdvancesCustomerBillings	-25500000	usd
CY2021	sr	Increase Decrease In Delayed Advances Customer Billings IncreaseDecreaseInDelayedAdvancesCustomerBillings	-12400000	usd
CY2023	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	15000000	usd
CY2022	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	11200000	usd
CY2021	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	8900000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	117600000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	93500000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	116100000	usd
CY2023	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	13000000	usd
CY2022	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	8800000	usd
CY2021	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	17300000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	440200000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	55000000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	249800000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	662500000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	552200000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	624800000	usd
CY2023	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	37000000	usd
CY2022	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	-0	usd
CY2021	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	-0	usd
CY2023	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-4000000	usd
CY2022	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-5500000	usd
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-2800000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-695500000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-546700000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-622000000	usd
CY2023	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	755000000	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	300000000	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	629100000	usd
CY2023	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	281200000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	55800000	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	115400000	usd
CY2023	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-82000000	usd
CY2022	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	365500000	usd
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	24000000	usd
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	41900000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	51900000	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1000000	usd
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	150700000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	141900000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	133200000	usd
CY2023	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	14800000	usd
CY2022	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	14800000	usd
CY2021	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	14800000	usd
CY2023	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-7600000	usd
CY2022	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-4000000	usd
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-11300000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	260600000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	500900000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	379400000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	5300000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	9200000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	7200000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	20500000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	11300000	usd
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	4100000	usd
CY2023Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	25800000	usd
CY2022Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	20500000	usd
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	11300000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	177500000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	119900000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	98700000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2000000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1800000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1500000	usd
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	pure
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-family: Georgia, Times, serif; font-size: 10pt; font-variant: normal; margin: 0pt;"><b>USE OF ESTIMATES </b>– The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Actual results could differ from those estimates.</p> <p style="font-family: Georgia, Times, serif; font-size: 10pt; font-variant: normal; margin: 0pt;"> </p> <p style="font-family: Georgia, Times, serif; font-size: 10pt; font-variant: normal; margin: 0pt;"></p>
CY2023	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	104300000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	77800000	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	59500000	usd
CY2023	sr	Taxes Receipt Amounts Included Operating Revenues TaxesReceiptAmountsIncludedOperatingRevenues	131800000	usd
CY2022	sr	Taxes Receipt Amounts Included Operating Revenues TaxesReceiptAmountsIncludedOperatingRevenues	109800000	usd
CY2021	sr	Taxes Receipt Amounts Included Operating Revenues TaxesReceiptAmountsIncludedOperatingRevenues	94000000	usd
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CY2022Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	520900000	usd
CY2021Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	519600000	usd
CY2023	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	7900000	usd
CY2022	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	3200000	usd
CY2023	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	6800000	usd
CY2022	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	9200000	usd
CY2023	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	21500000	usd
CY2022	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	21100000	usd
CY2023	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	33900000	usd
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CY2023Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	577400000	usd
CY2022Q3	us-gaap	Asset Retirement Obligation AssetRetirementObligation	520900000	usd
CY2023	sr	Difference Between Replacement Cost Of Gas Storage And Inventory Basis Amount DifferenceBetweenReplacementCostOfGasStorageAndInventoryBasisAmount	21100000	usd
CY2022	sr	Difference Between Replacement Cost Of Gas Storage And Inventory Basis Amount DifferenceBetweenReplacementCostOfGasStorageAndInventoryBasisAmount	37300000	usd
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CY2023Q3	us-gaap	Restricted Cash RestrictedCash	20200000	usd
CY2022Q3	us-gaap	Restricted Cash RestrictedCash	14000000	usd
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0426	pure
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0079	pure
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0022	pure
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0	pure
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0	pure
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0	pure
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.338	pure
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.322	pure
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.314	pure
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P3Y
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P3Y
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P3Y
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0	pure
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	11200000	usd
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	7500000	usd
CY2022Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	31900000	usd
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	30300000	usd
CY2020Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	24900000	usd
CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	16600000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	11600000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	14700000	usd
CY2023	sr	Accounts Receivable Allowance For Credit Loss Writeoff Net Of Recoveries AccountsReceivableAllowanceForCreditLossWriteoffNetOfRecoveries	16000000	usd
CY2022	sr	Accounts Receivable Allowance For Credit Loss Writeoff Net Of Recoveries AccountsReceivableAllowanceForCreditLossWriteoffNetOfRecoveries	10000000	usd
CY2021	sr	Accounts Receivable Allowance For Credit Loss Writeoff Net Of Recoveries AccountsReceivableAllowanceForCreditLossWriteoffNetOfRecoveries	9300000	usd
CY2023Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	32500000	usd
CY2022Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	31900000	usd
CY2021Q3	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	30300000	usd
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Compensation Cost1 SharebasedCompensationArrangementBySharebasedPaymentAwardCompensationCost1	16600000	usd
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CY2022	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	-1100000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Allocation Of Recognized Period Costs Capitalized Amount EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount	-2700000	usd
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	9800000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	6400000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	13900000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	-2200000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	-1500000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	-3200000	usd
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CY2022	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	4900000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense Net Of Tax AllocatedShareBasedCompensationExpenseNetOfTax	10700000	usd
CY2023Q3	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	12100000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y8M12D
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CY2022	us-gaap	Net Income Loss NetIncomeLoss	220800000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	271700000	usd
CY2023	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14800000	usd
CY2022	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14800000	usd
CY2021	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14800000	usd
CY2023	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	300000	usd
CY2022	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	300000	usd
CY2021	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	400000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	202400000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	205700000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	256500000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52500000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52000000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51600000
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CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.97
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CY2022	us-gaap	Net Income Loss NetIncomeLoss	220800000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	271700000	usd
CY2023	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14800000	usd
CY2022	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14800000	usd
CY2021	us-gaap	Preferred Stock Dividends Income Statement Impact PreferredStockDividendsIncomeStatementImpact	14800000	usd
CY2023	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	300000	usd
CY2022	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	300000	usd
CY2021	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	400000	usd
CY2023	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	202400000	usd
CY2022	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	205700000	usd
CY2021	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	256500000	usd
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52500000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	52000000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	51600000
CY2023	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	100000
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	100000
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	100000
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52600000
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	52100000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	51700000
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.85
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.95
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.96
CY2023	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1900000
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	100000
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	100000
CY2023Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2023Q3	sr	Number Of Shares Authorized For Issuance NumberOfSharesAuthorizedForIssuance	250000
CY2023Q3	sr	Number Of Shares Remaining And Available For Issuance NumberOfSharesRemainingAndAvailableForIssuance	244182
CY2022Q3	sr	Retained Earnings Dividend Restrictions Formula Component Fixed Amount RetainedEarningsDividendRestrictionsFormulaComponentFixedAmount	8000000	usd
CY2023Q3	us-gaap	Retained Earnings Unappropriated RetainedEarningsUnappropriated	1678500000	usd
CY2022Q3	us-gaap	Retained Earnings Unappropriated RetainedEarningsUnappropriated	1579400000	usd
CY2023Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	3732700000	usd
CY2022Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	3258900000	usd
CY2023Q3	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	22100000	usd
CY2022Q3	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	19200000	usd
CY2023Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	156600000	usd
CY2022Q3	us-gaap	Long Term Debt Current LongTermDebtCurrent	281200000	usd
CY2023Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3554000000	usd
CY2022Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	2958500000	usd
CY2023Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	156600000	usd
CY2023Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	342000000	usd
CY2023Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	312500000	usd
CY2023Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	108100000	usd
CY2023Q3	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	53600000	usd
CY2023Q3	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	3732700000	usd
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CY2022	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	4500000	usd
CY2021	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	4400000	usd
CY2023Q3	sr	Nonmonetary Notional Amount Of Natural Gas Derivative Contracts Not Designated As Normal Purchases Or Normal Sales NonmonetaryNotionalAmountOfNaturalGasDerivativeContractsNotDesignatedAsNormalPurchasesOrNormalSales	567000000
CY2023Q3	sr	Notional Amount Of Non Exchange Traded Natural Gas Commodity Contracts To Be Settled In Next Twelve Months NotionalAmountOfNonExchangeTradedNaturalGasCommodityContractsToBeSettledInNextTwelveMonths	379.1
CY2023Q3	sr	Notional Amount Of Non Exchange Traded Natural Gas Commodity Contracts To Be Settled In Year Two NotionalAmountOfNonExchangeTradedNaturalGasCommodityContractsToBeSettledInYearTwo	151.1
CY2023Q3	sr	Notional Amount Of Non Exchange Traded Natural Gas Commodity Contracts To Be Settled In Year Three NotionalAmountOfNonExchangeTradedNaturalGasCommodityContractsToBeSettledInYearThree	26.4
CY2023Q3	sr	Notional Amount Of Non Exchange Traded Natural Gas Commodity Contracts To Be Settled In Year Four NotionalAmountOfNonExchangeTradedNaturalGasCommodityContractsToBeSettledInYearFour	3.8
CY2023Q3	sr	Notional Amount Of Non Exchange Traded Natural Gas Commodity Contracts To Be Settled In Year Five NotionalAmountOfNonExchangeTradedNaturalGasCommodityContractsToBeSettledInYearFive	6.6
CY2023Q3	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	44200000	usd
CY2023Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	97400000	usd
CY2023Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	100200000	usd
CY2022Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	269800000	usd
CY2022Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	178500000	usd
CY2023Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	97400000	usd
CY2022Q3	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	269800000	usd
CY2023Q3	sr	Fair Value Of Cash Margin Receivable Offset With Derivatives FairValueOfCashMarginReceivableOffsetWithDerivatives	49300000	usd
CY2022Q3	sr	Fair Value Of Cash Margin Receivable Offset With Derivatives FairValueOfCashMarginReceivableOffsetWithDerivatives	-36600000	usd
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CY2022Q3	us-gaap	Derivative Asset Fair Value Gross Liability DerivativeAssetFairValueGrossLiability	117000000	usd
CY2023Q3	us-gaap	Derivative Assets DerivativeAssets	77300000	usd
CY2022Q3	us-gaap	Derivative Assets DerivativeAssets	116200000	usd
CY2023Q3	us-gaap	Derivative Assets DerivativeAssets	77300000	usd
CY2022Q3	us-gaap	Derivative Assets DerivativeAssets	116200000	usd
CY2023Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	100200000	usd
CY2022Q3	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	178500000	usd
CY2023Q3	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	69400000	usd
CY2022Q3	us-gaap	Derivative Liability Fair Value Gross Asset DerivativeLiabilityFairValueGrossAsset	117000000	usd
CY2023Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	30800000	usd
CY2022Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	61500000	usd
CY2023Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	30800000	usd
CY2022Q3	us-gaap	Derivative Liabilities DerivativeLiabilities	61500000	usd
CY2022Q3	us-gaap	Other Receivables From Broker Dealers And Clearing Organizations OtherReceivablesFromBrokerDealersAndClearingOrganizations	49800000	usd
CY2023Q3	us-gaap	Tax Credit Carryforward Amount TaxCreditCarryforwardAmount	13100000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	27700000	usd
CY2022Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsReserves	33500000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	64400000	usd
CY2022Q3	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	72600000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	0	usd
CY2022Q3	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	0	usd
CY2023Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	239200000	usd
CY2022Q3	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	255100000	usd
CY2023Q3	sr	Deferred Tax Assets Regulatory Amount Due To Customers Net DeferredTaxAssetsRegulatoryAmountDueToCustomersNet	30400000	usd
CY2022Q3	sr	Deferred Tax Assets Regulatory Amount Due To Customers Net DeferredTaxAssetsRegulatoryAmountDueToCustomersNet	34500000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	35800000	usd
CY2022Q3	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	24900000	usd
CY2023Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	397500000	usd
CY2022Q3	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	420600000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	788000000	usd
CY2022Q3	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	740000000	usd
CY2023Q3	sr	Deferred Tax Liabilities Regulatory Pension And Other Postretirement Benefits DeferredTaxLiabilitiesRegulatoryPensionAndOtherPostretirementBenefits	80600000	usd
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CY2023Q3	sr	Deferred Tax Liabilities Deferred Gas Cost DeferredTaxLiabilitiesDeferredGasCost	67000000	usd
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CY2023Q3	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	205600000	usd
CY2022Q3	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	187100000	usd
CY2023Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1141200000	usd
CY2022Q3	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	1095700000	usd
CY2023Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	743700000	usd
CY2022Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	675100000	usd
CY2023Q3	us-gaap	Operating Loss Carryforwards OperatingLossCarryforwards	1000300000	usd
CY2023Q3	sr	Charitable Contribution Carryforwards CharitableContributionCarryforwards	6100000	usd
CY2023Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	5900000	usd
CY2022Q3	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	4000000	usd
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CY2023Q3	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	334700000	usd
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CY2023Q3	sr	Customer Share CustomerShare	0.75	pure
CY2023	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	15500000	usd
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CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	38800000	usd
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CY2023	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	662500000	usd
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CY2021	us-gaap	Interest Expense InterestExpense	106600000	usd
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CY2021	sr	Net Economic Earnings NetEconomicEarnings	266300000	usd
CY2021	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	624800000	usd
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CY2022Q3	us-gaap	Assets Assets	10083700000	usd
CY2021Q3	us-gaap	Assets Assets	9356400000	usd
CY2023	us-gaap	Long Term Purchase Commitment Amount LongTermPurchaseCommitmentAmount	1613200000	usd
CY2023	sr	Capital Committed To Contribute To Partnership CapitalCommittedToContributeToPartnership	10000000	usd
CY2023	sr	Remaining Unfunded Capital Commitment RemainingUnfundedCapitalCommitment	4900000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	217500000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	220800000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	271700000	usd
CY2023	sr	Public Utilities Approved Rate Increase Decrease Regulatory Costs PublicUtilitiesApprovedRateIncreaseDecreaseRegulatoryCosts	-0	usd
CY2022	sr	Public Utilities Approved Rate Increase Decrease Regulatory Costs PublicUtilitiesApprovedRateIncreaseDecreaseRegulatoryCosts	-0	usd
CY2021	sr	Public Utilities Approved Rate Increase Decrease Regulatory Costs PublicUtilitiesApprovedRateIncreaseDecreaseRegulatoryCosts	9000000	usd
CY2023	sr	Fair Value And Timing Adjustments FairValueAndTimingAdjustments	-11400000	usd
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CY2023	sr	Acquisition Divestiture And Restructuring Activities AcquisitionDivestitureAndRestructuringActivities	2500000	usd
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CY2023Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P14Y1M6D
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CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	6900000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	7500000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	7500000	usd
CY2023Q3	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	7400000	usd
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CY2023Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	77000000	usd
CY2023	dei	Amendment Flag AmendmentFlag	false
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CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Type DocumentType	10-K
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CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-09-30
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	1-16681
CY2023	dei	Entity Registrant Name EntityRegistrantName	Spire Inc.
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	700 Market Street
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	St. Louis
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	MO
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	63101
CY2023	dei	City Area Code CityAreaCode	314
CY2023	dei	Local Phone Number LocalPhoneNumber	342-0500
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MO
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	74-2976504
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CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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CY2023	dei	Auditor Firm AuditorFirmId	34
CY2023	dei	Auditor Name AuditorName	Deloitte & Touche LLP
CY2023	dei	Auditor Location AuditorLocation	St. Louis, Missouri
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--09-30
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Type DocumentType	10-K
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-09-30
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	1-16681
CY2023	dei	Entity Registrant Name EntityRegistrantName	Spire Inc.
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	700 Market Street
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	St. Louis
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	MO
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	63101
CY2023	dei	City Area Code CityAreaCode	314
CY2023	dei	Local Phone Number LocalPhoneNumber	342-0500
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	MO
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	74-2976504
CY2023	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2023	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
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CY2023	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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CY2023	dei	Auditor Name AuditorName	Deloitte & Touche LLP
CY2023	dei	Auditor Location AuditorLocation	St. Louis, Missouri

Files In Submission

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$SR
Spire Inc Stock $sr

2023 Q4 Form 10-K Financial Statement

#000143774923032284 Filed on November 16, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SR Spire Inc Stock $sr

2023 Q4 Form 10-K Financial Statement

#000143774923032284 Filed on November 16, 2023

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$SR
Spire Inc Stock $sr