10-K Filing

AMERICAN WATER WORKS COMPANY, INC. CIK: 1410636 FY 2023

Filing Information

Form Type	10-K
Accession Number	`0001410636-24-000050`
Period End Date	20231231
Filing Date	20240214
Fiscal Year	2023
Fiscal Period	FY
XBRL Instance	awk-20231231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 108 Income Statement 100 Cash Flow Statement 127 Stockholders Equity 36 Comprehensive Income 41

Balance Sheet 108 line items

Line Item	Tag	Value	Unit	Period
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$75.00M	USD	Point-in-time
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$60.00M	USD	Point-in-time
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$60.00M	USD	Point-in-time
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$51.00M	USD	Point-in-time
Common stock, par value (USD per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Property, plant and equipment	`PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization`	$29.74B	USD	Point-in-time
Common stock, par value (USD per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Property, plant and equipment	`PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization`	$32.19B	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	500.00M	shares	Point-in-time
Accumulated depreciation	`PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization`	$6.75B	USD	Point-in-time
Accumulated depreciation	`PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization`	$6.51B	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	500.00M	shares	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization`	$25.44B	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	187.20M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	200.14M	shares	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization`	$23.22B	USD	Point-in-time
Treasury stock, shares (in shares)	`TreasuryStockCommonShares`	5.34M	shares	Point-in-time
Treasury stock, shares (in shares)	`TreasuryStockCommonShares`	5.41M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$85.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$330.00M	USD	Point-in-time
Restricted funds	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$32.00M	USD	Point-in-time
Restricted funds	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$34.00M	USD	Point-in-time
Accounts receivable, net of allowance for uncollectible accounts of $51 and $60, respectively	`AccountsReceivableNetCurrent`	$334.00M	USD	Point-in-time
Accounts receivable, net of allowance for uncollectible accounts of $51 and $60, respectively	`AccountsReceivableNetCurrent`	$339.00M	USD	Point-in-time
Income tax receivable	`IncomeTaxesReceivable`	$86.00M	USD	Point-in-time
Income tax receivable	`IncomeTaxesReceivable`	$114.00M	USD	Point-in-time
Unbilled revenues	`UnbilledReceivablesCurrent`	$302.00M	USD	Point-in-time
Unbilled revenues	`UnbilledReceivablesCurrent`	$275.00M	USD	Point-in-time
Materials and supplies	`InventoryRawMaterialsAndSupplies`	$98.00M	USD	Point-in-time
Materials and supplies	`InventoryRawMaterialsAndSupplies`	$112.00M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$312.00M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$186.00M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.25B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.39B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$1.11B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$990.00M	USD	Point-in-time
Seller promissory note from the sale of the Homeowner Services Group	`NotesAndLoansReceivableNetNoncurrent`	$720.00M	USD	Point-in-time
Seller promissory note from the sale of the Homeowner Services Group	`NotesAndLoansReceivableNetNoncurrent`	$720.00M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$82.00M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$86.00M	USD	Point-in-time
Goodwill	`Goodwill`	$1.14B	USD	Point-in-time
Goodwill	`Goodwill`	$1.14B	USD	Point-in-time
Goodwill	`Goodwill`	$1.14B	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$379.00M	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$416.00M	USD	Point-in-time
Total regulatory and other long-term assets	`RegulatedEntityOtherAssetsNoncurrent`	$3.47B	USD	Point-in-time
Total regulatory and other long-term assets	`RegulatedEntityOtherAssetsNoncurrent`	$3.31B	USD	Point-in-time
Total assets	`Assets`	$27.79B	USD	Point-in-time
Total assets	`Assets`	$30.30B	USD	Point-in-time
Total assets	`Assets`	$26.07B	USD	Point-in-time
Common stock ($0.01 par value; 500,000,000 shares authorized; 200,144,968 and 187,200,539 shares issued, respectively)	`CommonStockValue`	$2.00M	USD	Point-in-time
Common stock ($0.01 par value; 500,000,000 shares authorized; 200,144,968 and 187,200,539 shares issued, respectively)	`CommonStockValue`	$2.00M	USD	Point-in-time
Paid-in-capital	`AdditionalPaidInCapitalCommonStock`	$8.55B	USD	Point-in-time
Paid-in-capital	`AdditionalPaidInCapitalCommonStock`	$6.82B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.66B	USD	Point-in-time
Retained earnings	`RetainedEarningsAccumulatedDeficit`	$1.27B	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-23.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-26.00M	USD	Point-in-time
Treasury stock, at cost (5,414,867 and 5,342,477 shares, respectively)	`TreasuryStockCommonValue`	$377.00M	USD	Point-in-time
Treasury stock, at cost (5,414,867 and 5,342,477 shares, respectively)	`TreasuryStockCommonValue`	$388.00M	USD	Point-in-time
Total common shareholders' equity	`StockholdersEquity`	$7.69B	USD	Point-in-time
Total common shareholders' equity	`StockholdersEquity`	$6.45B	USD	Point-in-time
Total common shareholders' equity	`StockholdersEquity`	$7.30B	USD	Point-in-time
Total common shareholders' equity	`StockholdersEquity`	$9.80B	USD	Point-in-time
Long-term debt	`LongTermDebtAndCapitalLeaseObligations`	$10.93B	USD	Point-in-time
Long-term debt	`LongTermDebtAndCapitalLeaseObligations`	$11.71B	USD	Point-in-time
Redeemable preferred stock at redemption value	`PreferredStockRedemptionAmount`	$3.00M	USD	Point-in-time
Redeemable preferred stock at redemption value	`PreferredStockRedemptionAmount`	$3.00M	USD	Point-in-time
Total long-term debt	`LongTermDebtIncludesRedeemablePreferredStockAtRedemptionValue`	$11.72B	USD	Point-in-time
Total long-term debt	`LongTermDebtIncludesRedeemablePreferredStockAtRedemptionValue`	$10.93B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$21.52B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$18.62B	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$179.00M	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$1.18B	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$281.00M	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$475.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$294.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$254.00M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$791.00M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$706.00M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$67.00M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$49.00M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$91.00M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$93.00M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$255.00M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$252.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.81B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.15B	USD	Point-in-time
Advances for construction	`AdvancesForConstruction`	$316.00M	USD	Point-in-time
Advances for construction	`AdvancesForConstruction`	$352.00M	USD	Point-in-time
Deferred income taxes and investment tax credits	`DeferredTaxLiabilitiesAndInvestmentTaxCreditsNoncurrent`	$2.44B	USD	Point-in-time
Deferred income taxes and investment tax credits	`DeferredTaxLiabilitiesAndInvestmentTaxCreditsNoncurrent`	$2.72B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$1.48B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilityNoncurrent`	$1.59B	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$70.00M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$73.00M	USD	Point-in-time
Accrued pension expense	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$262.00M	USD	Point-in-time
Accrued pension expense	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$235.00M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$196.00M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$202.00M	USD	Point-in-time
Total regulatory and other long-term liabilities	`RegulatoryAndOtherLongTermLiabilities`	$4.85B	USD	Point-in-time
Total regulatory and other long-term liabilities	`RegulatoryAndOtherLongTermLiabilities`	$5.08B	USD	Point-in-time
Contributions in aid of construction	`ContributionsInAidOfConstruction`	$1.55B	USD	Point-in-time
Contributions in aid of construction	`ContributionsInAidOfConstruction`	$1.50B	USD	Point-in-time
Commitments and contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Commitments and contingencies	`CommitmentsAndContingencies`	-	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$30.30B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$27.79B	USD	Point-in-time

Income Statement 100 line items

Line Item	Tag	Value	Unit	Period
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$4.23B	USD	Annual
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$3.79B	USD	Annual
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$931.00M	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$937.00M	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.08B	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$938.00M	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.03B	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.10B	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$3.93B	USD	Annual
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$842.00M	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.17B	USD	1 Quarter
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.78B	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.59B	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.72B	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$649.00M	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$636.00M	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$704.00M	USD	Annual
General taxes	`UtilitiesOperatingExpenseTaxes`	$281.00M	USD	Annual
General taxes	`UtilitiesOperatingExpenseTaxes`	$307.00M	USD	Annual
General taxes	`UtilitiesOperatingExpenseTaxes`	$321.00M	USD	Annual
Other	`OtherOperatingIncomeExpenseNet`	$1.00M	USD	Annual
Other	`OtherOperatingIncomeExpenseNet`	-	USD	Annual
Other	`OtherOperatingIncomeExpenseNet`	-	USD	Annual
Total operating expenses, net	`OperatingExpenses`	$2.73B	USD	Annual
Total operating expenses, net	`OperatingExpenses`	$2.52B	USD	Annual
Total operating expenses, net	`OperatingExpenses`	$2.73B	USD	Annual
Operating income	`OperatingIncomeLoss`	$1.20B	USD	Annual
Operating income	`OperatingIncomeLoss`	$432.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$1.27B	USD	Annual
Operating income	`OperatingIncomeLoss`	$1.50B	USD	Annual
Operating income	`OperatingIncomeLoss`	$299.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$439.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$246.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$327.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$295.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$478.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$261.00M	USD	1 Quarter
Interest expense	`InterestExpenseNonoperating`	$433.00M	USD	Annual
Interest expense	`InterestExpenseNonoperating`	$403.00M	USD	Annual
Interest expense	`InterestExpenseNonoperating`	$460.00M	USD	Annual
Interest income	`InterestIncomeNonoperating`	$52.00M	USD	Annual
Interest income	`InterestIncomeNonoperating`	$4.00M	USD	Annual
Interest income	`InterestIncomeNonoperating`	$73.00M	USD	Annual
Non-operating benefit costs, net	`BenefitCostsNonOperatingNet`	$-77.00M	USD	Annual
Non-operating benefit costs, net	`BenefitCostsNonOperatingNet`	$-32.00M	USD	Annual
Non-operating benefit costs, net	`BenefitCostsNonOperatingNet`	$-78.00M	USD	Annual
Gain on sale of businesses	`GainLossOnSaleOfBusiness`	$19.00M	USD	Annual
Gain on sale of businesses	`GainLossOnSaleOfBusiness`	$747.00M	USD	Annual
Gain on sale of businesses	`GainLossOnSaleOfBusiness`	-	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$47.00M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$20.00M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$18.00M	USD	Annual
Total other income (expense)	`NonoperatingIncomeExpense`	$-308.00M	USD	Annual
Total other income (expense)	`NonoperatingIncomeExpense`	$-265.00M	USD	Annual
Total other income (expense)	`NonoperatingIncomeExpense`	$444.00M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$1.01B	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$1.64B	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$1.20B	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$188.00M	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$377.00M	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$252.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$218.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$280.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$147.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$158.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$1.26B	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$170.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$944.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$323.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$297.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$820.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$171.00M	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$1.66	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$6.96	USD	Annual
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$1.44	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$0.88	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$0.87	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$1.63	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$4.90	USD	Annual
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$0.81	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$4.51	USD	Annual
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$0.91	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$1.20	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$0.87	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$0.91	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$4.51	USD	Annual
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$1.44	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$6.95	USD	Annual
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$0.88	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$1.66	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$1.63	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$1.20	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$0.81	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$4.90	USD	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	182.00M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	193.00M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	182.00M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	193.00M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	182.00M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	182.00M	shares	Annual

Cash Flow Statement 127 line items

Line Item	Tag	Value	Unit	Period
Advances and contributions in aid of construction, refunds	`RepaymentsOfConstructionLoansPayable`	$25.00M	USD	Annual
Advances and contributions in aid of construction, refunds	`RepaymentsOfConstructionLoansPayable`	$25.00M	USD	Annual
Advances and contributions in aid of construction, refunds	`RepaymentsOfConstructionLoansPayable`	$19.00M	USD	Annual
Income taxes, refunds	`ProceedsFromIncomeTaxRefunds`	$30.00M	USD	Annual
Net income	`NetIncomeLoss`	$218.00M	USD	1 Quarter
Net income	`NetIncomeLoss`	$280.00M	USD	1 Quarter
Net income	`NetIncomeLoss`	$147.00M	USD	1 Quarter
Net income	`NetIncomeLoss`	$158.00M	USD	1 Quarter
Net income	`NetIncomeLoss`	$1.26B	USD	Annual
Net income	`NetIncomeLoss`	$170.00M	USD	1 Quarter
Income taxes, refunds	`ProceedsFromIncomeTaxRefunds`	$2.00M	USD	Annual
Net income	`NetIncomeLoss`	$944.00M	USD	Annual
Net income	`NetIncomeLoss`	$323.00M	USD	1 Quarter
Net income	`NetIncomeLoss`	$297.00M	USD	1 Quarter
Net income	`NetIncomeLoss`	$820.00M	USD	Annual
Net income	`NetIncomeLoss`	$171.00M	USD	1 Quarter
Income taxes, refunds	`ProceedsFromIncomeTaxRefunds`	$6.00M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$649.00M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$636.00M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$704.00M	USD	Annual
Deferred income taxes and amortization of investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$208.00M	USD	Annual
Deferred income taxes and amortization of investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$80.00M	USD	Annual
Deferred income taxes and amortization of investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$230.00M	USD	Annual
Provision for losses on accounts receivable	`ProvisionForDoubtfulAccounts`	$37.00M	USD	Annual
Provision for losses on accounts receivable	`ProvisionForDoubtfulAccounts`	$24.00M	USD	Annual
Provision for losses on accounts receivable	`ProvisionForDoubtfulAccounts`	$24.00M	USD	Annual
Gain on sale of businesses	`GainLossOnDispositionOfBusinessIncludingUtilitiesOperatingExpenseIncomeOther`	$747.00M	USD	Annual
Gain on sale of businesses	`GainLossOnDispositionOfBusinessIncludingUtilitiesOperatingExpenseIncomeOther`	$19.00M	USD	Annual
Gain on sale of businesses	`GainLossOnDispositionOfBusinessIncludingUtilitiesOperatingExpenseIncomeOther`	-	USD	Annual
Pension and non-pension postretirement benefits	`PensionAndOtherPostretirementBenefitContributions`	$6.00M	USD	Annual
Pension and non-pension postretirement benefits	`PensionAndOtherPostretirementBenefitContributions`	$47.00M	USD	Annual
Pension and non-pension postretirement benefits	`PensionAndOtherPostretirementBenefitContributions`	$41.00M	USD	Annual
Other non-cash, net	`OtherNoncashIncomeExpense`	$-7.00M	USD	Annual
Other non-cash, net	`OtherNoncashIncomeExpense`	$23.00M	USD	Annual
Other non-cash, net	`OtherNoncashIncomeExpense`	$27.00M	USD	Annual
Receivables and unbilled revenues	`IncreaseDecreaseInAccountsAndNotesReceivable`	$74.00M	USD	Annual
Receivables and unbilled revenues	`IncreaseDecreaseInAccountsAndNotesReceivable`	$114.00M	USD	Annual
Receivables and unbilled revenues	`IncreaseDecreaseInAccountsAndNotesReceivable`	$56.00M	USD	Annual
Income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$-28.00M	USD	Annual
Income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$-21.00M	USD	Annual
Income tax receivable	`IncreaseDecreaseInIncomeTaxesReceivable`	$110.00M	USD	Annual
Pension and non-pension postretirement benefit contributions	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-40.00M	USD	Annual
Pension and non-pension postretirement benefit contributions	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-49.00M	USD	Annual
Pension and non-pension postretirement benefit contributions	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-51.00M	USD	Annual
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-8.00M	USD	Annual
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$70.00M	USD	Annual
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$66.00M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$21.00M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$-118.00M	USD	Annual
Accrued taxes	`IncreaseDecreaseInAccruedTaxesPayable`	$129.00M	USD	Annual
Other assets and liabilities, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$16.00M	USD	Annual
Other assets and liabilities, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$-13.00M	USD	Annual
Other assets and liabilities, net	`IncreaseDecreaseInOtherOperatingCapitalNet`	$5.00M	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.44B	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.11B	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.87B	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.76B	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$2.58B	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$2.30B	USD	Annual
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$135.00M	USD	Annual
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$315.00M	USD	Annual
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$81.00M	USD	Annual
Proceeds from sale of assets, net of cash on hand	`ProceedsFromSaleOfProductiveAssets`	$608.00M	USD	Annual
Proceeds from sale of assets, net of cash on hand	`ProceedsFromSaleOfProductiveAssets`	-	USD	Annual
Proceeds from sale of assets, net of cash on hand	`ProceedsFromSaleOfProductiveAssets`	$472.00M	USD	Annual
Removal costs from property, plant and equipment retirements, net	`PaymentsForProceedsFromRemovalCosts`	$123.00M	USD	Annual
Removal costs from property, plant and equipment retirements, net	`PaymentsForProceedsFromRemovalCosts`	$109.00M	USD	Annual
Removal costs from property, plant and equipment retirements, net	`PaymentsForProceedsFromRemovalCosts`	$159.00M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.54B	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.81B	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.13B	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$822.00M	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$1.12B	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$1.26B	USD	Annual
Repayments of long-term debt	`RepaymentsOfLongTermDebt`	$372.00M	USD	Annual
Repayments of long-term debt	`RepaymentsOfLongTermDebt`	$15.00M	USD	Annual
Repayments of long-term debt	`RepaymentsOfLongTermDebt`	$282.00M	USD	Annual
(Repayments of) proceeds from term loan	`ProceedsRepaymentFromTermLoan`	$-500.00M	USD	Annual
(Repayments of) proceeds from term loan	`ProceedsRepaymentFromTermLoan`	-	USD	Annual
(Repayments of) proceeds from term loan	`ProceedsRepaymentFromTermLoan`	-	USD	Annual
Net proceeds from common stock financing	`ProceedsFromIssuanceOfCommonStock`	$1.69B	USD	Annual
Net proceeds from common stock financing	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Net proceeds from common stock financing	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Net short-term (repayments) borrowings with maturities less than three months	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$-198.00M	USD	Annual
Net short-term (repayments) borrowings with maturities less than three months	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$591.00M	USD	Annual
Net short-term (repayments) borrowings with maturities less than three months	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$-996.00M	USD	Annual
Advances and contributions in aid of construction, net of refunds of $25, $19 and $25 in 2023, 2022 and 2021, respectively	`ProceedsFromAdvancesForConstruction`	$60.00M	USD	Annual
Advances and contributions in aid of construction, net of refunds of $25, $19 and $25 in 2023, 2022 and 2021, respectively	`ProceedsFromAdvancesForConstruction`	$74.00M	USD	Annual
Advances and contributions in aid of construction, net of refunds of $25, $19 and $25 in 2023, 2022 and 2021, respectively	`ProceedsFromAdvancesForConstruction`	$62.00M	USD	Annual
Debt issuance costs and make-whole premium on early debt redemption	`PaymentsOfFinancingCosts`	$16.00M	USD	Annual
Debt issuance costs and make-whole premium on early debt redemption	`PaymentsOfFinancingCosts`	$26.00M	USD	Annual
Debt issuance costs and make-whole premium on early debt redemption	`PaymentsOfFinancingCosts`	$7.00M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$467.00M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$532.00M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$428.00M	USD	Annual
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$2.00M	USD	Annual
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$-1.00M	USD	Annual
Other, net	`ProceedsFromPaymentsForOtherFinancingActivities`	$2.00M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$-345.00M	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$1.19B	USD	Annual
Net cash provided by (used in) financing activities	`NetCashProvidedByUsedInFinancingActivities`	$1.00B	USD	Annual
Net (decrease) increase in cash, cash equivalents and restricted funds	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$247.00M	USD	Annual
Net (decrease) increase in cash, cash equivalents and restricted funds	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-19.00M	USD	Annual
Net (decrease) increase in cash, cash equivalents and restricted funds	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-440.00M	USD	Annual
Cash, cash equivalents and restricted funds at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$364.00M	USD	Point-in-time
Cash, cash equivalents and restricted funds at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$576.00M	USD	Point-in-time
Cash, cash equivalents and restricted funds at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$117.00M	USD	Point-in-time
Cash, cash equivalents and restricted funds at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$136.00M	USD	Point-in-time
Cash, cash equivalents and restricted funds at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$364.00M	USD	Point-in-time
Cash, cash equivalents and restricted funds at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$576.00M	USD	Point-in-time
Cash, cash equivalents and restricted funds at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$117.00M	USD	Point-in-time
Cash, cash equivalents and restricted funds at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$136.00M	USD	Point-in-time
Interest, net of capitalized amount	`InterestPaidNet`	$389.00M	USD	Annual
Interest, net of capitalized amount	`InterestPaidNet`	$445.00M	USD	Annual
Interest, net of capitalized amount	`InterestPaidNet`	$414.00M	USD	Annual
Income taxes, net of refunds of $30, $2 and $6 in 2023, 2022 and 2021, respectively	`IncomeTaxesPaidNet`	$335.00M	USD	Annual
Income taxes, net of refunds of $30, $2 and $6 in 2023, 2022 and 2021, respectively	`IncomeTaxesPaidNet`	-	USD	Annual
Income taxes, net of refunds of $30, $2 and $6 in 2023, 2022 and 2021, respectively	`IncomeTaxesPaidNet`	$1.00M	USD	Annual
Capital expenditures acquired on account but unpaid as of year end	`CapitalExpendituresIncurredButNotYetPaid`	$399.00M	USD	Annual
Capital expenditures acquired on account but unpaid as of year end	`CapitalExpendituresIncurredButNotYetPaid`	$330.00M	USD	Annual
Capital expenditures acquired on account but unpaid as of year end	`CapitalExpendituresIncurredButNotYetPaid`	$292.00M	USD	Annual
Seller promissory note from the sale of the Homeowner Services Group	`NoncashOrPartNoncashDisposalNotesReceivable`	-	USD	Annual
Seller promissory note from the sale of the Homeowner Services Group	`NoncashOrPartNoncashDisposalNotesReceivable`	-	USD	Annual
Seller promissory note from the sale of the Homeowner Services Group	`NoncashOrPartNoncashDisposalNotesReceivable`	$720.00M	USD	Annual
Contingent cash payment from the sale of the Homeowner Services Group	`NoncashOrPartNoncashDisposalContingentCashPayment`	-	USD	Annual
Contingent cash payment from the sale of the Homeowner Services Group	`NoncashOrPartNoncashDisposalContingentCashPayment`	-	USD	Annual
Contingent cash payment from the sale of the Homeowner Services Group	`NoncashOrPartNoncashDisposalContingentCashPayment`	$75.00M	USD	Annual

Stockholders Equity 36 line items

Line Item	Tag	Value	Unit	Period
Dividends declared per common share (USD per share)	`CommonStockDividendsPerShareDeclared`	$2.83	USD	Annual
Dividends declared per common share (USD per share)	`CommonStockDividendsPerShareDeclared`	$2.41	USD	Annual
Dividends declared per common share (USD per share)	`CommonStockDividendsPerShareDeclared`	$2.62	USD	Annual
Dividends declared per common share (USD per share)	`CommonStockDividendsPerShareDeclared`	$0.71	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$7.69B	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$6.45B	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$7.30B	USD	Point-in-time
Beginning balance	`StockholdersEquity`	$9.80B	USD	Point-in-time
Beginning balance (in shares)	`TreasuryStockCommonShares`	5.34M	shares	Point-in-time
Beginning balance (in shares)	`TreasuryStockCommonShares`	5.41M	shares	Point-in-time
Net income attributable to common shareholders	`NetIncomeLoss`	$218.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$280.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$147.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$158.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$1.26B	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$170.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$944.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$323.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$297.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$820.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$171.00M	USD	1 Quarter
Common stock issuances	`StockIssuedDuringPeriodValueShareBasedCompensation`	$31.00M	USD	Annual
Common stock issuances	`StockIssuedDuringPeriodValueShareBasedCompensation`	$17.00M	USD	Annual
Common stock issuances	`StockIssuedDuringPeriodValueShareBasedCompensation`	$1.72B	USD	Annual
Net other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-3.00M	USD	Annual
Net other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$4.00M	USD	Annual
Net other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$22.00M	USD	Annual
Dividends (declared per common share)	`DividendsCash`	$552.00M	USD	Annual
Dividends (declared per common share)	`DividendsCash`	$478.00M	USD	Annual
Dividends (declared per common share)	`DividendsCash`	$440.00M	USD	Annual
Ending balance	`StockholdersEquity`	$7.69B	USD	Point-in-time
Ending balance	`StockholdersEquity`	$6.45B	USD	Point-in-time
Ending balance	`StockholdersEquity`	$7.30B	USD	Point-in-time
Ending balance	`StockholdersEquity`	$9.80B	USD	Point-in-time
Ending balance (in shares)	`TreasuryStockCommonShares`	5.34M	shares	Point-in-time
Ending balance (in shares)	`TreasuryStockCommonShares`	5.41M	shares	Point-in-time

Comprehensive Income 41 line items

Line Item	Tag	Value	Unit	Period
Net income attributable to common shareholders	`NetIncomeLoss`	$218.00M	USD	1 Quarter
Change in employee benefit plan funded status, tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	-	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$280.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$147.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$158.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$1.26B	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$170.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$944.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$323.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$297.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$820.00M	USD	Annual
Change in employee benefit plan funded status, tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$5.00M	USD	Annual
Change in employee benefit plan funded status, tax	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax`	$-2.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$171.00M	USD	1 Quarter
Defined benefit pension plan actuarial loss, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	$-1.00M	USD	Annual
Defined benefit pension plan actuarial loss, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	-	USD	Annual
Defined benefit pension plan actuarial loss, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	$-1.00M	USD	Annual
Unrealized gain (loss) on cash flow hedges, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent`	$1.00M	USD	Annual
Unrealized gain (loss) on cash flow hedges, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent`	-	USD	Annual
Unrealized gain (loss) on cash flow hedges, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent`	$1.00M	USD	Annual
Change in employee benefit plan funded status, net of tax of $(2), $5 and $0 in 2023, 2022 and 2021, respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$14.00M	USD	Annual
Change in employee benefit plan funded status, net of tax of $(2), $5 and $0 in 2023, 2022 and 2021, respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-3.00M	USD	Annual
Change in employee benefit plan funded status, net of tax of $(2), $5 and $0 in 2023, 2022 and 2021, respectively	`OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax`	$-1.00M	USD	Annual
Unrealized gain (loss) on available-for-sale fixed-income securities, tax	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax`	-	USD	Annual
Unrealized gain (loss) on available-for-sale fixed-income securities, tax	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax`	-	USD	Annual
Defined benefit pension plan actuarial loss, net of tax of $0, $1 and $1 in 2023, 2022 and 2021, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-4.00M	USD	Annual
Defined benefit pension plan actuarial loss, net of tax of $0, $1 and $1 in 2023, 2022 and 2021, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-3.00M	USD	Annual
Defined benefit pension plan actuarial loss, net of tax of $0, $1 and $1 in 2023, 2022 and 2021, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-4.00M	USD	Annual
Unrealized gain (loss) on available-for-sale fixed-income securities, tax	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax`	-	USD	Annual
Unrealized gain (loss) on cash flow hedges, net of tax of $0, $1 and $1 in 2023, 2022 and 2021, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent`	$5.00M	USD	Annual
Unrealized gain (loss) on cash flow hedges, net of tax of $0, $1 and $1 in 2023, 2022 and 2021, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent`	$-8.00M	USD	Annual
Unrealized gain (loss) on cash flow hedges, net of tax of $0, $1 and $1 in 2023, 2022 and 2021, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent`	$1.00M	USD	Annual
Unrealized gain (loss) on available-for-sale fixed-income securities, net of tax of $0 in 2023, 2022 and 2021	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax`	-	USD	Annual
Unrealized gain (loss) on available-for-sale fixed-income securities, net of tax of $0 in 2023, 2022 and 2021	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax`	$4.00M	USD	Annual
Unrealized gain (loss) on available-for-sale fixed-income securities, net of tax of $0 in 2023, 2022 and 2021	`OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax`	-	USD	Annual
Net other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$-3.00M	USD	Annual
Net other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$4.00M	USD	Annual
Net other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent`	$22.00M	USD	Annual
Comprehensive income attributable to common shareholders	`ComprehensiveIncomeNetOfTax`	$842.00M	USD	Annual
Comprehensive income attributable to common shareholders	`ComprehensiveIncomeNetOfTax`	$941.00M	USD	Annual
Comprehensive income attributable to common shareholders	`ComprehensiveIncomeNetOfTax`	$1.27B	USD	Annual

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