10-K Filing

AMERICAN WATER WORKS COMPANY, INC. CIK: 1410636 FY 2020

Filing Information

Form Type	10-K
Accession Number	`0001410636-21-000101`
Period End Date	20201231
Filing Date	20210224
Fiscal Year	2020
Fiscal Period	FY
XBRL Instance	awk-20201231_htm.xml

Filing Contents

This filing contains the following financial statements:

Balance Sheet 110 Income Statement 103 Cash Flow Statement 119 Stockholders Equity 36 Comprehensive Income 44

Balance Sheet 110 line items

Line Item	Tag	Value	Unit	Period
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$60.00M	USD	Point-in-time
Allowance for uncollectible accounts	`AllowanceForDoubtfulAccountsReceivableCurrent`	$41.00M	USD	Point-in-time
Common stock, par value (USD per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Property, plant and equipment	`PropertyPlantAndEquipmentGross`	$25.61B	USD	Point-in-time
Common stock, par value (USD per share)	`CommonStockParOrStatedValuePerShare`	$0.01	USD	Point-in-time
Property, plant and equipment	`PropertyPlantAndEquipmentGross`	$23.94B	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	500.00M	shares	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$5.90B	USD	Point-in-time
Common stock, shares authorized (in shares)	`CommonStockSharesAuthorized`	500.00M	shares	Point-in-time
Accumulated depreciation	`AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment`	$5.71B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$18.23B	USD	Point-in-time
Property, plant and equipment, net	`PropertyPlantAndEquipmentNet`	$19.71B	USD	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	185.90M	shares	Point-in-time
Common stock, shares issued (in shares)	`CommonStockSharesIssued`	186.47M	shares	Point-in-time
Treasury Stock, shares (in shares)	`TreasuryStockShares`	5.09M	shares	Point-in-time
Treasury Stock, shares (in shares)	`TreasuryStockShares`	5.17M	shares	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$547.00M	USD	Point-in-time
Cash and cash equivalents	`CashAndCashEquivalentsAtCarryingValue`	$60.00M	USD	Point-in-time
Restricted funds	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$31.00M	USD	Point-in-time
Restricted funds	`RestrictedCashAndCashEquivalentsAtCarryingValue`	$29.00M	USD	Point-in-time
Accounts receivable, net of allowance for uncollectible accounts of $60 and $41, respectively	`AccountsReceivableNetCurrent`	$321.00M	USD	Point-in-time
Accounts receivable, net of allowance for uncollectible accounts of $60 and $41, respectively	`AccountsReceivableNetCurrent`	$294.00M	USD	Point-in-time
Unbilled revenues	`UnbilledReceivablesCurrent`	$172.00M	USD	Point-in-time
Unbilled revenues	`UnbilledReceivablesCurrent`	$206.00M	USD	Point-in-time
Materials and supplies	`InventoryRawMaterialsAndSupplies`	$44.00M	USD	Point-in-time
Materials and supplies	`InventoryRawMaterialsAndSupplies`	$47.00M	USD	Point-in-time
Assets held for sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperation`	$629.00M	USD	Point-in-time
Assets held for sale	`AssetsOfDisposalGroupIncludingDiscontinuedOperation`	$566.00M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$118.00M	USD	Point-in-time
Other	`OtherAssetsCurrent`	$127.00M	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.91B	USD	Point-in-time
Total current assets	`AssetsCurrent`	$1.28B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$1.13B	USD	Point-in-time
Regulatory assets	`RegulatoryAssetsNoncurrent`	$1.13B	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$95.00M	USD	Point-in-time
Operating lease right-of-use assets	`OperatingLeaseRightOfUseAsset`	$103.00M	USD	Point-in-time
Goodwill	`Goodwill`	$1.50B	USD	Point-in-time
Goodwill	`Goodwill`	$1.50B	USD	Point-in-time
Goodwill	`Goodwill`	$1.57B	USD	Point-in-time
Postretirement benefit assets	`IntangibleAssetsNoncurrent`	$173.00M	USD	Point-in-time
Postretirement benefit assets	`IntangibleAssetsNoncurrent`	$159.00M	USD	Point-in-time
Intangible assets	`PrepaidPostRetirementAssetsNoncurrent`	$55.00M	USD	Point-in-time
Intangible assets	`PrepaidPostRetirementAssetsNoncurrent`	$67.00M	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$207.00M	USD	Point-in-time
Other	`OtherAssetsNoncurrent`	$196.00M	USD	Point-in-time
Total regulatory and other long-term assets	`RegulatedEntityOtherAssetsNoncurrent`	$3.17B	USD	Point-in-time
Total regulatory and other long-term assets	`RegulatedEntityOtherAssetsNoncurrent`	$3.15B	USD	Point-in-time
Total assets	`Assets`	$21.22B	USD	Point-in-time
Total assets	`Assets`	$24.77B	USD	Point-in-time
Total assets	`Assets`	$22.68B	USD	Point-in-time
Common stock ($0.01 par value; 500,000,000 shares authorized; 186,466,707 and 185,903,727 shares issued, respectively)	`CommonStockValue`	$2.00M	USD	Point-in-time
Common stock ($0.01 par value; 500,000,000 shares authorized; 186,466,707 and 185,903,727 shares issued, respectively)	`CommonStockValue`	$2.00M	USD	Point-in-time
Paid-in-capital	`AdditionalPaidInCapitalCommonStock`	$6.70B	USD	Point-in-time
Paid-in-capital	`AdditionalPaidInCapitalCommonStock`	$6.75B	USD	Point-in-time
Retained earnings (accumulated deficit)	`RetainedEarningsAccumulatedDeficit`	$-207.00M	USD	Point-in-time
Retained earnings (accumulated deficit)	`RetainedEarningsAccumulatedDeficit`	$102.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-36.00M	USD	Point-in-time
Accumulated other comprehensive loss	`AccumulatedOtherComprehensiveIncomeLossNetOfTax`	$-49.00M	USD	Point-in-time
Treasury stock, at cost (5,168,215 and 5,090,855 shares, respectively)	`TreasuryStockValue`	$348.00M	USD	Point-in-time
Treasury stock, at cost (5,168,215 and 5,090,855 shares, respectively)	`TreasuryStockValue`	$338.00M	USD	Point-in-time
Total common shareholders' equity	`StockholdersEquity`	$5.86B	USD	Point-in-time
Total common shareholders' equity	`StockholdersEquity`	$6.45B	USD	Point-in-time
Total common shareholders' equity	`StockholdersEquity`	$6.12B	USD	Point-in-time
Total common shareholders' equity	`StockholdersEquity`	$5.38B	USD	Point-in-time
Long-term debt	`LongTermDebtAndCapitalLeaseObligations`	$8.64B	USD	Point-in-time
Long-term debt	`LongTermDebtAndCapitalLeaseObligations`	$9.33B	USD	Point-in-time
Redeemable preferred stock at redemption value	`PreferredStockRedemptionAmount`	$5.00M	USD	Point-in-time
Redeemable preferred stock at redemption value	`PreferredStockRedemptionAmount`	$4.00M	USD	Point-in-time
Total long-term debt	`LongTermDebtIncludesRedeemablePreferredStockAtRedemptionValue`	$8.64B	USD	Point-in-time
Total long-term debt	`LongTermDebtIncludesRedeemablePreferredStockAtRedemptionValue`	$9.33B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$14.77B	USD	Point-in-time
Total capitalization	`CapitalizationLongtermDebtAndEquity`	$15.79B	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$1.28B	USD	Point-in-time
Short-term debt	`ShortTermBorrowings`	$786.00M	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$329.00M	USD	Point-in-time
Current portion of long-term debt	`LongTermDebtAndCapitalLeaseObligationsCurrent`	$28.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$203.00M	USD	Point-in-time
Accounts payable	`AccountsPayableCurrent`	$189.00M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$596.00M	USD	Point-in-time
Accrued liabilities	`AccruedLiabilitiesCurrent`	$591.00M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$50.00M	USD	Point-in-time
Accrued taxes	`TaxesPayableCurrent`	$46.00M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$88.00M	USD	Point-in-time
Accrued interest	`InterestPayableCurrent`	$84.00M	USD	Point-in-time
Liabilities related to assets held for sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation`	$137.00M	USD	Point-in-time
Liabilities related to assets held for sale	`LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation`	$128.00M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$174.00M	USD	Point-in-time
Other	`OtherLiabilitiesCurrent`	$215.00M	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.88B	USD	Point-in-time
Total current liabilities	`LiabilitiesCurrent`	$2.04B	USD	Point-in-time
Advances for construction	`ContractWithCustomerLiabilityNoncurrent`	$270.00M	USD	Point-in-time
Advances for construction	`ContractWithCustomerLiabilityNoncurrent`	$240.00M	USD	Point-in-time
Deferred income taxes and investment tax credits	`DeferredIncomeTaxLiabilitiesNetandInvestmentTaxCredits`	$1.89B	USD	Point-in-time
Deferred income taxes and investment tax credits	`DeferredIncomeTaxLiabilitiesNetandInvestmentTaxCredits`	$2.11B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilities`	$1.81B	USD	Point-in-time
Regulatory liabilities	`RegulatoryLiabilities`	$1.77B	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$81.00M	USD	Point-in-time
Operating lease liabilities	`OperatingLeaseLiabilityNoncurrent`	$89.00M	USD	Point-in-time
Accrued pension expense	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$411.00M	USD	Point-in-time
Accrued pension expense	`DefinedBenefitPensionPlanLiabilitiesNoncurrent`	$388.00M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$78.00M	USD	Point-in-time
Other	`OtherLiabilitiesNoncurrent`	$83.00M	USD	Point-in-time
Total regulatory and other long-term liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$4.71B	USD	Point-in-time
Total regulatory and other long-term liabilities	`LiabilitiesOtherThanLongtermDebtNoncurrent`	$4.52B	USD	Point-in-time
Contributions in aid of construction	`ContributionsInAidOfConstruction`	$1.39B	USD	Point-in-time
Contributions in aid of construction	`ContributionsInAidOfConstruction`	$1.35B	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`	$24.77B	USD	Point-in-time
Total capitalization and liabilities	`LiabilitiesAndStockholdersEquity`	$22.68B	USD	Point-in-time

Income Statement 103 line items

Line Item	Tag	Value	Unit	Period
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$813.00M	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$902.00M	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$923.00M	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$3.61B	USD	Annual
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$844.00M	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.01B	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$3.78B	USD	Annual
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$1.08B	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$882.00M	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$931.00M	USD	1 Quarter
Operating revenues	`RegulatedAndUnregulatedOperatingRevenue`	$3.44B	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.48B	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.62B	USD	Annual
Operation and maintenance	`UtilitiesOperatingExpenseMaintenanceAndOperations`	$1.54B	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$545.00M	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$604.00M	USD	Annual
Depreciation and amortization	`UtilitiesOperatingExpenseDepreciationAndAmortization`	$582.00M	USD	Annual
General taxes	`UtilitiesOperatingExpenseTaxes`	$280.00M	USD	Annual
General taxes	`UtilitiesOperatingExpenseTaxes`	$277.00M	USD	Annual
General taxes	`UtilitiesOperatingExpenseTaxes`	$303.00M	USD	Annual
Loss (gain) on asset dispositions and purchases	`GainLossOnDispositionOfAssets1`	$-34.00M	USD	Annual
Loss (gain) on asset dispositions and purchases	`GainLossOnDispositionOfAssets1`	-	USD	Annual
Loss (gain) on asset dispositions and purchases	`GainLossOnDispositionOfAssets1`	$20.00M	USD	Annual
Impairment charge	`AssetImpairmentCharges`	-	USD	Annual
Impairment charge	`AssetImpairmentCharges`	-	USD	Annual
Impairment charge	`AssetImpairmentCharges`	$57.00M	USD	Annual
Total operating expenses, net	`OperatingExpenses`	$2.44B	USD	Annual
Total operating expenses, net	`OperatingExpenses`	$2.34B	USD	Annual
Total operating expenses, net	`OperatingExpenses`	$2.53B	USD	Annual
Operating income	`OperatingIncomeLoss`	$433.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$224.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$1.10B	USD	Annual
Operating income	`OperatingIncomeLoss`	$313.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$263.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$238.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$1.17B	USD	Annual
Operating income	`OperatingIncomeLoss`	$1.25B	USD	Annual
Operating income	`OperatingIncomeLoss`	$406.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$239.00M	USD	1 Quarter
Operating income	`OperatingIncomeLoss`	$302.00M	USD	1 Quarter
Interest, net	`InterestIncomeExpenseNonoperatingNet`	$-350.00M	USD	Annual
Interest, net	`InterestIncomeExpenseNonoperatingNet`	$-382.00M	USD	Annual
Interest, net	`InterestIncomeExpenseNonoperatingNet`	$-395.00M	USD	Annual
Non-operating benefit costs, net	`BenefitCostsNonOperatingNet`	$-20.00M	USD	Annual
Non-operating benefit costs, net	`BenefitCostsNonOperatingNet`	$-49.00M	USD	Annual
Non-operating benefit costs, net	`BenefitCostsNonOperatingNet`	$-16.00M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$15.00M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$29.00M	USD	Annual
Other, net	`OtherNonoperatingIncomeExpense`	$22.00M	USD	Annual
Total other income (expense)	`NonoperatingIncomeExpense`	$-315.00M	USD	Annual
Total other income (expense)	`NonoperatingIncomeExpense`	$-337.00M	USD	Annual
Total other income (expense)	`NonoperatingIncomeExpense`	$-324.00M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$787.00M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$833.00M	USD	Annual
Income before income taxes	`IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest`	$924.00M	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$215.00M	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$212.00M	USD	Annual
Provision for income taxes	`IncomeTaxExpenseBenefit`	$222.00M	USD	Annual
Consolidated net income	`ProfitLoss`	$709.00M	USD	Annual
Consolidated net income	`ProfitLoss`	$621.00M	USD	Annual
Consolidated net income	`ProfitLoss`	$565.00M	USD	Annual
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	$-2.00M	USD	Annual
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	Annual
Net loss attributable to noncontrolling interest	`NetIncomeLossAttributableToNoncontrollingInterest`	-	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$621.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$124.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$145.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$264.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$240.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$98.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$567.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$170.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$176.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$709.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$113.00M	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$1.46	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$3.91	USD	Annual
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$0.97	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$0.80	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$0.54	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$3.44	USD	Annual
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$3.16	USD	Annual
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$0.69	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$0.94	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$1.33	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareBasic`	$0.62	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$0.62	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$3.91	USD	Annual
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$1.46	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$0.68	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$0.80	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$0.97	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$0.54	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$1.33	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$0.94	USD	1 Quarter
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$3.43	USD	Annual
Net income attributable to common shareholders (USD per share)	`EarningsPerShareDiluted`	$3.15	USD	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	180.00M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	181.00M	shares	Annual
Basic (in shares)	`WeightedAverageNumberOfSharesOutstandingBasic`	181.00M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	182.00M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	181.00M	shares	Annual
Diluted (in shares)	`WeightedAverageNumberOfDilutedSharesOutstanding`	180.00M	shares	Annual

Cash Flow Statement 119 line items

Line Item	Tag	Value	Unit	Period
Income taxes paid on proceeds from issuance of employee stock plans and direct stock purchase plan	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$11.00M	USD	Annual
Income taxes paid on proceeds from issuance of employee stock plans and direct stock purchase plan	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$17.00M	USD	Annual
Income taxes paid on proceeds from issuance of employee stock plans and direct stock purchase plan	`PaymentsRelatedToTaxWithholdingForShareBasedCompensation`	$8.00M	USD	Annual
Net income	`ProfitLoss`	$709.00M	USD	Annual
Advances and contributions for construction, refunds	`RepaymentsOfConstructionLoansPayable`	$24.00M	USD	Annual
Net income	`ProfitLoss`	$621.00M	USD	Annual
Advances and contributions for construction, refunds	`RepaymentsOfConstructionLoansPayable`	$22.00M	USD	Annual
Advances and contributions for construction, refunds	`RepaymentsOfConstructionLoansPayable`	$30.00M	USD	Annual
Net income	`ProfitLoss`	$565.00M	USD	Annual
Income taxes, refunds	`ProceedsFromIncomeTaxRefunds`	-	USD	Annual
Income taxes, refunds	`ProceedsFromIncomeTaxRefunds`	$2.00M	USD	Annual
Income taxes, refunds	`ProceedsFromIncomeTaxRefunds`	$4.00M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$545.00M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$604.00M	USD	Annual
Depreciation and amortization	`DepreciationDepletionAndAmortization`	$582.00M	USD	Annual
Deferred income taxes and amortization of investment tax credits	`DeferredIncomeTaxesAndTaxCredits`	$195.00M	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`	$207.00M	USD	Annual
Provision for losses on accounts receivable	`ProvisionForDoubtfulAccounts`	$34.00M	USD	Annual
Provision for losses on accounts receivable	`ProvisionForDoubtfulAccounts`	$33.00M	USD	Annual
Provision for losses on accounts receivable	`ProvisionForDoubtfulAccounts`	$28.00M	USD	Annual
Loss (gain) on asset dispositions and purchases	`GainLossOnDispositionOfAssets1`	$-34.00M	USD	Annual
Loss (gain) on asset dispositions and purchases	`GainLossOnDispositionOfAssets1`	-	USD	Annual
Loss (gain) on asset dispositions and purchases	`GainLossOnDispositionOfAssets1`	$20.00M	USD	Annual
Impairment charge	`AssetImpairmentCharges`	-	USD	Annual
Impairment charge	`AssetImpairmentCharges`	-	USD	Annual
Impairment charge	`AssetImpairmentCharges`	$57.00M	USD	Annual
Pension and non-pension postretirement benefits	`PensionAndOtherPostretirementBenefitExpense`	$-14.00M	USD	Annual
Pension and non-pension postretirement benefits	`PensionAndOtherPostretirementBenefitExpense`	$17.00M	USD	Annual
Pension and non-pension postretirement benefits	`PensionAndOtherPostretirementBenefitExpense`	$23.00M	USD	Annual
Other non-cash, net	`OtherNoncashIncomeExpense`	$20.00M	USD	Annual
Other non-cash, net	`OtherNoncashIncomeExpense`	$41.00M	USD	Annual
Other non-cash, net	`OtherNoncashIncomeExpense`	$-20.00M	USD	Annual
Receivables and unbilled revenues	`IncreaseDecreaseInReceivables`	$17.00M	USD	Annual
Receivables and unbilled revenues	`IncreaseDecreaseInReceivables`	$25.00M	USD	Annual
Receivables and unbilled revenues	`IncreaseDecreaseInReceivables`	$97.00M	USD	Annual
Pension and non-pension postretirement benefit contributions	`PensionAndOtherPostretirementBenefitContributions`	$31.00M	USD	Annual
Pension and non-pension postretirement benefit contributions	`PensionAndOtherPostretirementBenefitContributions`	$22.00M	USD	Annual
Pension and non-pension postretirement benefit contributions	`PensionAndOtherPostretirementBenefitContributions`	$39.00M	USD	Annual
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$-2.00M	USD	Annual
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$25.00M	USD	Annual
Accounts payable and accrued liabilities	`IncreaseDecreaseInAccountsPayableAndAccruedLiabilities`	$66.00M	USD	Annual
Other assets and liabilities, net	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$72.00M	USD	Annual
Other assets and liabilities, net	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-22.00M	USD	Annual
Other assets and liabilities, net	`IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet`	$-44.00M	USD	Annual
Impact of Freedom Industries settlement activities	`GainLossRelatedToLitigationSettlement`	$4.00M	USD	Annual
Impact of Freedom Industries settlement activities	`GainLossRelatedToLitigationSettlement`	$40.00M	USD	Annual
Impact of Freedom Industries settlement activities	`GainLossRelatedToLitigationSettlement`	-	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.38B	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.39B	USD	Annual
Net cash provided by operating activities	`NetCashProvidedByUsedInOperatingActivities`	$1.43B	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.65B	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.59B	USD	Annual
Capital expenditures	`PaymentsToAcquirePropertyPlantAndEquipment`	$1.82B	USD	Annual
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$398.00M	USD	Annual
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$135.00M	USD	Annual
Acquisitions, net of cash acquired	`PaymentsToAcquireBusinessesNetOfCashAcquired`	$235.00M	USD	Annual
Proceeds from sale of assets	`ProceedsFromSaleOfProductiveAssets`	$2.00M	USD	Annual
Proceeds from sale of assets	`ProceedsFromSaleOfProductiveAssets`	$48.00M	USD	Annual
Proceeds from sale of assets	`ProceedsFromSaleOfProductiveAssets`	$35.00M	USD	Annual
Removal costs from property, plant and equipment retirements, net	`PaymentsForProceedsFromRemovalCosts`	$104.00M	USD	Annual
Removal costs from property, plant and equipment retirements, net	`PaymentsForProceedsFromRemovalCosts`	$106.00M	USD	Annual
Removal costs from property, plant and equipment retirements, net	`PaymentsForProceedsFromRemovalCosts`	$87.00M	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-1.95B	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.06B	USD	Annual
Net cash used in investing activities	`NetCashProvidedByUsedInInvestingActivities`	$-2.04B	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$1.33B	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$1.53B	USD	Annual
Proceeds from long-term debt	`ProceedsFromIssuanceOfLongTermDebt`	$1.36B	USD	Annual
Repayments of long-term debt	`RepaymentsOfLongTermDebt`	$342.00M	USD	Annual
Repayments of long-term debt	`RepaymentsOfLongTermDebt`	$495.00M	USD	Annual
Repayments of long-term debt	`RepaymentsOfLongTermDebt`	$526.00M	USD	Annual
Proceeds from term loan	`ProceedsfromTermLoan`	$500.00M	USD	Annual
Proceeds from term loan	`ProceedsfromTermLoan`	-	USD	Annual
Proceeds from term loan	`ProceedsfromTermLoan`	-	USD	Annual
Net short-term borrowings with maturities less than three months	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$60.00M	USD	Annual
Net short-term borrowings with maturities less than three months	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$-5.00M	USD	Annual
Net short-term borrowings with maturities less than three months	`ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess`	$-178.00M	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	$183.00M	USD	Annual
Issuance of common stock	`ProceedsFromIssuanceOfCommonStock`	-	USD	Annual
Proceeds from issuances of employee stock plans and direct stock purchase plan, net of taxes paid of $17, $11 and $8 in 2020, 2019 and 2018, respectively	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$9.00M	USD	Annual
Proceeds from issuances of employee stock plans and direct stock purchase plan, net of taxes paid of $17, $11 and $8 in 2020, 2019 and 2018, respectively	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$16.00M	USD	Annual
Proceeds from issuances of employee stock plans and direct stock purchase plan, net of taxes paid of $17, $11 and $8 in 2020, 2019 and 2018, respectively	`ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions`	$15.00M	USD	Annual
Advances and contributions in aid of construction, net of refunds of $24, $30 and $22 in 2020, 2019 and 2018, respectively	`ProceedsFromConstructionLoansPayable`	$28.00M	USD	Annual
Advances and contributions in aid of construction, net of refunds of $24, $30 and $22 in 2020, 2019 and 2018, respectively	`ProceedsFromConstructionLoansPayable`	$21.00M	USD	Annual
Advances and contributions in aid of construction, net of refunds of $24, $30 and $22 in 2020, 2019 and 2018, respectively	`ProceedsFromConstructionLoansPayable`	$26.00M	USD	Annual
Debt issuance costs and make-whole premium on early debt redemption	`PaymentsofDebtIssuanceCostsandMakeWholePremiumOnEarlyDebtRedemption`	$22.00M	USD	Annual
Debt issuance costs and make-whole premium on early debt redemption	`PaymentsofDebtIssuanceCostsandMakeWholePremiumOnEarlyDebtRedemption`	$15.00M	USD	Annual
Debt issuance costs and make-whole premium on early debt redemption	`PaymentsofDebtIssuanceCostsandMakeWholePremiumOnEarlyDebtRedemption`	$15.00M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$353.00M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$319.00M	USD	Annual
Dividends paid	`PaymentsOfDividendsCommonStock`	$389.00M	USD	Annual
Anti-dilutive share repurchases	`PaymentsForRepurchaseOfCommonStock`	$36.00M	USD	Annual
Anti-dilutive share repurchases	`PaymentsForRepurchaseOfCommonStock`	-	USD	Annual
Anti-dilutive share repurchases	`PaymentsForRepurchaseOfCommonStock`	$45.00M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$1.12B	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$494.00M	USD	Annual
Net cash provided by financing activities	`NetCashProvidedByUsedInFinancingActivities`	$726.00M	USD	Annual
Net increase (decrease) in cash, cash equivalents and restricted funds	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$-68.00M	USD	Annual
Net increase (decrease) in cash, cash equivalents and restricted funds	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$485.00M	USD	Annual
Net increase (decrease) in cash, cash equivalents and restricted funds	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect`	$76.00M	USD	Annual
Cash, cash equivalents and restricted funds at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$91.00M	USD	Point-in-time
Cash, cash equivalents and restricted funds at beginning of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$83.00M	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`	$159.00M	USD	Point-in-time
Cash, cash equivalents and restricted funds at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$91.00M	USD	Point-in-time
Cash, cash equivalents and restricted funds at end of period	`CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents`	$83.00M	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`	$159.00M	USD	Point-in-time
Interest, net of capitalized amount	`InterestPaidNet`	$332.00M	USD	Annual
Interest, net of capitalized amount	`InterestPaidNet`	$382.00M	USD	Annual
Interest, net of capitalized amount	`InterestPaidNet`	$383.00M	USD	Annual
Income taxes, net of refunds of $2, $4 and $0 in 2020, 2019 and 2018, respectively	`IncomeTaxesPaidNet`	$12.00M	USD	Annual
Income taxes, net of refunds of $2, $4 and $0 in 2020, 2019 and 2018, respectively	`IncomeTaxesPaidNet`	$7.00M	USD	Annual
Income taxes, net of refunds of $2, $4 and $0 in 2020, 2019 and 2018, respectively	`IncomeTaxesPaidNet`	$38.00M	USD	Annual
Capital expenditures acquired on account but unpaid as of year end	`CapitalExpendituresIncurredButNotYetPaid`	$181.00M	USD	Annual
Capital expenditures acquired on account but unpaid as of year end	`CapitalExpendituresIncurredButNotYetPaid`	$221.00M	USD	Annual
Capital expenditures acquired on account but unpaid as of year end	`CapitalExpendituresIncurredButNotYetPaid`	$235.00M	USD	Annual

Stockholders Equity 36 line items

Line Item	Tag	Value	Unit	Period
Dividends declared per common share (USD per share)	`CommonStockDividendsPerShareDeclared`	$2.20	USD	Annual
Dividends declared per common share (USD per share)	`CommonStockDividendsPerShareDeclared`	$2.00	USD	Annual
Dividends declared per common share (USD per share)	`CommonStockDividendsPerShareDeclared`	$0.55	USD	Point-in-time
Dividends declared per common share (USD per share)	`CommonStockDividendsPerShareDeclared`	$1.82	USD	Annual
Beginning Balance	`StockholdersEquity`	$5.86B	USD	Point-in-time
Beginning Balance	`StockholdersEquity`	$6.45B	USD	Point-in-time
Beginning Balance	`StockholdersEquity`	$6.12B	USD	Point-in-time
Beginning Balance	`StockholdersEquity`	$5.38B	USD	Point-in-time
Net income attributable to common shareholders	`NetIncomeLoss`	$621.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$124.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$145.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$264.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$240.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$98.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$567.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$170.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$176.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$709.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$113.00M	USD	1 Quarter
Common stock issuances	`StockIssuedDuringPeriodValueShareBasedCompensation`	$219.00M	USD	Annual
Common stock issuances	`StockIssuedDuringPeriodValueShareBasedCompensation`	$38.00M	USD	Annual
Common stock issuances	`StockIssuedDuringPeriodValueShareBasedCompensation`	$37.00M	USD	Annual
Repurchases of common stock (in shares)	`TreasuryStockSharesAcquired`	400,000.00	shares	Annual
Repurchases of common stock (in shares)	`TreasuryStockSharesAcquired`	0.00	shares	Annual
Repurchases of common stock	`TreasuryStockValueAcquiredCostMethod`	$45.00M	USD	Annual
Repurchases of common stock	`TreasuryStockValueAcquiredCostMethod`	$36.00M	USD	Annual
Net other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$45.00M	USD	Annual
Net other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$-2.00M	USD	Annual
Net other comprehensive income	`OtherComprehensiveIncomeLossNetOfTax`	$-13.00M	USD	Annual
Dividends (declared per common share)	`DividendsCash`	$400.00M	USD	Annual
Dividends (declared per common share)	`DividendsCash`	$327.00M	USD	Annual
Dividends (declared per common share)	`DividendsCash`	$362.00M	USD	Annual
Ending Balance	`StockholdersEquity`	$5.86B	USD	Point-in-time
Ending Balance	`StockholdersEquity`	$6.45B	USD	Point-in-time
Ending Balance	`StockholdersEquity`	$6.12B	USD	Point-in-time
Ending Balance	`StockholdersEquity`	$5.38B	USD	Point-in-time

Comprehensive Income 44 line items

Line Item	Tag	Value	Unit	Period
Net income attributable to common shareholders	`NetIncomeLoss`	$621.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$124.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$145.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$264.00M	USD	1 Quarter
Employee benefit plan funded status, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$4.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$240.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$98.00M	USD	1 Quarter
Net income attributable to common shareholders	`NetIncomeLoss`	$567.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$170.00M	USD	1 Quarter
Employee benefit plan funded status, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-20.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$176.00M	USD	1 Quarter
Employee benefit plan funded status, tax	`OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax`	$-3.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$709.00M	USD	Annual
Net income attributable to common shareholders	`NetIncomeLoss`	$113.00M	USD	1 Quarter
Actuarial loss, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	$-3.00M	USD	Annual
Actuarial loss, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	$-1.00M	USD	Annual
Actuarial loss, tax	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax`	$-1.00M	USD	Annual
Unrealized loss on cash flow hedges, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	-	USD	Annual
Unrealized loss on cash flow hedges, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-5.00M	USD	Annual
Change in employee benefit plan funded status, net of tax of $(4), $3 and $20 in 2020, 2019 and 2018, respectively	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-8.00M	USD	Annual
Change in employee benefit plan funded status, net of tax of $(4), $3 and $20 in 2020, 2019 and 2018, respectively	`IncreaseDecreaseInPensionAndPostretirementObligations`	$-60.00M	USD	Annual
Unrealized loss on cash flow hedges, tax	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationTax`	$-1.00M	USD	Annual
Change in employee benefit plan funded status, net of tax of $(4), $3 and $20 in 2020, 2019 and 2018, respectively	`IncreaseDecreaseInPensionAndPostretirementObligations`	$12.00M	USD	Annual
Defined benefit pension plan actuarial loss, net of tax of $1, $1 and $3 in 2020, 2019 and 2018, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-7.00M	USD	Annual
Defined benefit pension plan actuarial loss, net of tax of $1, $1 and $3 in 2020, 2019 and 2018, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-3.00M	USD	Annual
Defined benefit pension plan actuarial loss, net of tax of $1, $1 and $3 in 2020, 2019 and 2018, respectively	`OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax`	$-4.00M	USD	Annual
Pension reclassification from accumulated other comprehensive loss of tax effects resulting from the Tax Cuts and Jobs Act	`TaxCutsandJobsActof2017ReclassificationfromAOCItoRetainedEarningsPension`	$-22.00M	USD	Annual
Pension reclassification from accumulated other comprehensive loss of tax effects resulting from the Tax Cuts and Jobs Act	`TaxCutsandJobsActof2017ReclassificationfromAOCItoRetainedEarningsPension`	-	USD	Annual
Pension reclassification from accumulated other comprehensive loss of tax effects resulting from the Tax Cuts and Jobs Act	`TaxCutsandJobsActof2017ReclassificationfromAOCItoRetainedEarningsPension`	-	USD	Annual
Foreign currency translation adjustment	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	-	USD	Annual
Foreign currency translation adjustment	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	$-1.00M	USD	Annual
Foreign currency translation adjustment	`OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax`	-	USD	Annual
Unrealized loss on cash flow hedges, net of tax of $(1), $(5) and $0 in 2020, 2019 and 2018, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-4.00M	USD	Annual
Unrealized loss on cash flow hedges, net of tax of $(1), $(5) and $0 in 2020, 2019 and 2018, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-13.00M	USD	Annual
Unrealized loss on cash flow hedges, net of tax of $(1), $(5) and $0 in 2020, 2019 and 2018, respectively	`OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax`	$-2.00M	USD	Annual
Cash flow hedges reclassification from accumulated other comprehensive loss of tax effects resulting from the Tax Cuts and Jobs Act	`TaxCutsandJobsActof2017ReclassificationfromAOCItoRetainedEarningsHedge`	-	USD	Annual
Cash flow hedges reclassification from accumulated other comprehensive loss of tax effects resulting from the Tax Cuts and Jobs Act	`TaxCutsandJobsActof2017ReclassificationfromAOCItoRetainedEarningsHedge`	$2.00M	USD	Annual
Cash flow hedges reclassification from accumulated other comprehensive loss of tax effects resulting from the Tax Cuts and Jobs Act	`TaxCutsandJobsActof2017ReclassificationfromAOCItoRetainedEarningsHedge`	-	USD	Annual
Net other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$45.00M	USD	Annual
Net other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-2.00M	USD	Annual
Net other comprehensive income (loss)	`OtherComprehensiveIncomeLossNetOfTax`	$-13.00M	USD	Annual
Comprehensive income attributable to common shareholders	`ComprehensiveIncomeNetOfTax`	$619.00M	USD	Annual
Comprehensive income attributable to common shareholders	`ComprehensiveIncomeNetOfTax`	$696.00M	USD	Annual
Comprehensive income attributable to common shareholders	`ComprehensiveIncomeNetOfTax`	$612.00M	USD	Annual

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