$AWK
American Water Works Company, Inc. Stock $awk

$awk Overview Financials Valuation SEC Filings Company Website

2024 Q1 Form 10-K Financial Statement

#000141063624000050 Filed on February 14, 2024

Income Statement

Concept	2024 Q1	2023 Q4	2023
Revenue	$1.011B	$1.032B	$4.217B
YoY Change	9.3%	10.85%	12.06%
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	$188.0M	$181.0M	$704.0M
YoY Change	9.3%	10.37%	8.47%
% of Gross Profit
Operating Expenses	$685.0M	$733.0M	$2.730B
YoY Change	6.53%	9.4%	8.38%
Operating Profit	$326.0M	$299.0M	$1.504B
YoY Change	10.51%	14.56%	18.15%
Interest Expense	-$100.0M	-$97.00M	-$387.0M
YoY Change	-0.99%	-5.83%	1.57%
% of Operating Profit	-30.67%	-32.44%	-25.73%
Other Income/Expense, Net	$16.00M	$16.00M	-$308.0M
YoY Change	-119.75%	1500.0%	16.23%
Pretax Income	$242.0M	$218.0M	$1.196B
YoY Change	13.08%	22.47%	18.65%
Income Tax	$57.00M	$47.00M	$252.0M
% Of Pretax Income	23.55%	21.56%	21.07%
Net Earnings	$185.0M	$171.0M	$944.0M
YoY Change	8.82%	16.33%	15.12%
Net Earnings / Revenue	18.3%	16.57%	22.39%
Basic Earnings Per Share	$0.95	$0.88	$4.90
Diluted Earnings Per Share	$0.95	$0.88	$4.90
COMMON SHARES
Basic Shares Outstanding	194.8M shares	194.7M shares	193.0M shares
Diluted Shares Outstanding	195.0M shares		193.0M shares

Balance Sheet

Concept	2024 Q1	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$584.0M	$330.0M	$330.0M
YoY Change	174.18%	288.24%	288.24%
Cash & Equivalents	$584.0M	$330.0M	$330.0M
Short-Term Investments
Other Short-Term Assets	$431.0M	$186.0M	$427.0M
YoY Change	48.62%	-40.38%	-19.89%
Inventory	$115.0M	$112.0M	$112.0M
Prepaid Expenses
Receivables	$431.0M	$339.0M	$434.0M
Other Receivables	$26.00M	$86.00M	$86.00M
Total Short-Term Assets	$1.587B	$1.389B	$1.389B
YoY Change	18.61%	11.12%	11.12%
LONG-TERM ASSETS
Property, Plant & Equipment	$26.11B	$25.52B	$25.52B
YoY Change	10.11%	9.52%	9.52%
Goodwill	$1.143B	$1.143B
YoY Change	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$1.448B	$416.0M	$1.522B
YoY Change	295.63%	9.76%	11.18%
Total Long-Term Assets	$29.50B	$28.91B	$28.91B
YoY Change	9.47%	8.94%	8.94%
TOTAL ASSETS
Total Short-Term Assets	$1.587B	$1.389B	$1.389B
Total Long-Term Assets	$29.50B	$28.91B	$28.91B
Total Assets	$31.09B	$30.30B	$30.30B
YoY Change	9.9%	9.04%	9.04%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$231.0M	$294.0M	$294.0M
YoY Change	19.69%	15.75%	15.75%
Accrued Expenses	$767.0M	$791.0M	$884.0M
YoY Change	36.72%	12.04%	10.92%
Deferred Revenue		$63.00M
YoY Change
Short-Term Debt	$0.00	$179.0M	$179.0M
YoY Change		-84.77%	-84.77%
Long-Term Debt Due	$557.0M	$475.0M	$475.0M
YoY Change	-23.38%	69.04%	69.04%
Total Short-Term Liabilities	$1.857B	$2.151B	$2.151B
YoY Change	-1.85%	-23.48%	-23.48%
LONG-TERM LIABILITIES
Long-Term Debt	$12.57B	$11.72B	$11.72B
YoY Change	19.85%	7.22%	7.22%
Other Long-Term Liabilities	$3.911B	$196.0M	$3.915B
YoY Change	1936.98%	-2.97%	-0.05%
Total Long-Term Liabilities	$16.48B	$196.0M	$15.63B
YoY Change	8483.33%	-2.97%	5.3%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.857B	$2.151B	$2.151B
Total Long-Term Liabilities	$16.48B	$196.0M	$15.63B
Total Liabilities	$21.08B	$2.347B	$20.50B
YoY Change	911.47%	-22.1%	2.03%
SHAREHOLDERS EQUITY
Retained Earnings	$1.844B	$1.659B
YoY Change	28.32%	30.94%
Common Stock	$8.563B	$8.552B
YoY Change	0.49%	25.29%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$10.01B	$9.797B	$9.797B
YoY Change
Total Liabilities & Shareholders Equity	$31.09B	$30.30B	$30.30B
YoY Change	9.9%	9.04%	9.04%

Cashflow Statement

Concept	2024 Q1	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$185.0M	$171.0M	$944.0M
YoY Change	8.82%	16.33%	15.12%
Depreciation, Depletion And Amortization	$188.0M	$181.0M	$704.0M
YoY Change	9.3%	10.37%	8.47%
Cash From Operating Activities	$382.0M	$527.0M	$1.874B
YoY Change	34.04%	53.2%	69.13%
INVESTING ACTIVITIES
Capital Expenditures	$609.0M	$796.0M	$2.575B
YoY Change	15.78%	13.71%	12.1%
Acquisitions	$86.00M		$81.00M
YoY Change	2050.0%		-74.29%
Other Investing Activities	-$124.0M	-$91.00M	-$240.0M
YoY Change	254.29%	40.0%	-241.18%
Cash From Investing Activities	-$733.0M	-$887.0M	-$2.815B
YoY Change	30.66%	15.95%	32.35%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$1.688B
YoY Change
Debt Paid & Issued, Net	$449.0M		$282.0M
YoY Change	11125.0%		1780.0%
Cash From Financing Activities	613.0M	63.00M	$1.188B
YoY Change	52.87%	-85.48%	18.8%
NET CHANGE
Cash From Operating Activities	382.0M	527.0M	$1.874B
Cash From Investing Activities	-733.0M	-887.0M	-$2.815B
Cash From Financing Activities	613.0M	63.00M	$1.188B
Net Change In Cash	262.0M	-297.0M	$247.0M
YoY Change	109.6%	-2384.62%	-1400.0%
FREE CASH FLOW
Cash From Operating Activities	$382.0M	$527.0M	$1.874B
Capital Expenditures	$609.0M	$796.0M	$2.575B
Free Cash Flow	-$227.0M	-$269.0M	-$701.0M
YoY Change	-5.81%	-24.44%	-41.04%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2023	awk	Interest Expense Nonoperating InterestExpenseNonoperating	460000000	usd
CY2022	awk	Interest Expense Nonoperating InterestExpenseNonoperating	433000000	usd
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0001410636
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Amendment Flag AmendmentFlag	false
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CY2022Q4	us-gaap	Finance Lease Right Of Use Asset Statement Of Financial Position Extensible List FinanceLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Document Period End Date DocumentPeriodEndDate	2023-12-31
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	001-34028
CY2023	dei	Entity Registrant Name EntityRegistrantName	AMERICAN WATER WORKS COMPANY, INC.
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	51-0063696
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	1 Water Street
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Camden
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	NJ
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	08102-1658
CY2023	dei	City Area Code CityAreaCode	856
CY2023	dei	Local Phone Number LocalPhoneNumber	955-4001
CY2023	dei	Security12b Title Security12bTitle	Common stock, par value $0.01 per share
CY2023	dei	Trading Symbol TradingSymbol	AWK
CY2023	dei	Security Exchange Name SecurityExchangeName	NYSE
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	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023Q2	dei	Entity Public Float EntityPublicFloat	24527200000	usd
CY2024Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	194755320	shares
CY2023	dei	Auditor Firm AuditorFirmId	238
CY2023	dei	Auditor Name AuditorName	PricewaterhouseCoopers LLP
CY2023	dei	Auditor Location AuditorLocation	Philadelphia, Pennsylvania
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CY2022Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	114000000	usd
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CY2023Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	200144968	shares
CY2022Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	187200539	shares
CY2023Q4	us-gaap	Common Stock Value CommonStockValue	2000000	usd
CY2022Q4	us-gaap	Common Stock Value CommonStockValue	2000000	usd
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CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	1196000000	usd
CY2021	awk	Interest Expense Nonoperating InterestExpenseNonoperating	403000000	usd
CY2023	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	usd
CY2022	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	19000000	usd
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	747000000	usd
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	18000000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	252000000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	944000000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	820000000	usd
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.90
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.51
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.96
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.90
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.51
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.95
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	193000000	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	182000000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	182000000	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	193000000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	182000000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	182000000	shares
CY2023	us-gaap	Net Income Loss NetIncomeLoss	944000000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	820000000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1263000000	usd
CY2023	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-2000000	usd
CY2022	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	5000000	usd
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	0	usd
CY2023	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-3000000	usd
CY2022	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	14000000	usd
CY2021	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-1000000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-1000000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-4000000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-3000000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-4000000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	0	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	1000000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationTaxParent	1000000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-8000000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	5000000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	1000000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	0	usd
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	0	usd
CY2023	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Before Reclassification Adjustments Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesBeforeReclassificationAdjustmentsTax	0	usd
CY2023	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax	4000000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax	0	usd
CY2021	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Reclassification Adjustments Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeReclassificationAdjustmentsNetOfTax	0	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3000000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	22000000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	4000000	usd
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	941000000	usd
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	842000000	usd
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1267000000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	944000000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	820000000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1263000000	usd
CY2023	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	704000000	usd
CY2022	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	649000000	usd
CY2021	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	636000000	usd
CY2023	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	208000000	usd
CY2022	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	80000000	usd
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	230000000	usd
CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	24000000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	24000000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	37000000	usd
CY2023	awk	Gain Loss On Disposition Of Business Including Utilities Operating Expense Income Other GainLossOnDispositionOfBusinessIncludingUtilitiesOperatingExpenseIncomeOther	0	usd
CY2022	awk	Gain Loss On Disposition Of Business Including Utilities Operating Expense Income Other GainLossOnDispositionOfBusinessIncludingUtilitiesOperatingExpenseIncomeOther	19000000	usd
CY2021	awk	Gain Loss On Disposition Of Business Including Utilities Operating Expense Income Other GainLossOnDispositionOfBusinessIncludingUtilitiesOperatingExpenseIncomeOther	747000000	usd
CY2023	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	6000000	usd
CY2022	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	47000000	usd
CY2021	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	41000000	usd
CY2023	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	27000000	usd
CY2022	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-7000000	usd
CY2023	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	56000000	usd
CY2022	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	114000000	usd
CY2021	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	74000000	usd
CY2021	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-21000000	usd
CY2023	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-49000000	usd
CY2022	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-51000000	usd
CY2021	us-gaap	Increase Decrease In Pension And Postretirement Obligations IncreaseDecreaseInPensionAndPostretirementObligations	-40000000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	70000000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-8000000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	66000000	usd
CY2023	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	21000000	usd
CY2022	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-118000000	usd
CY2021	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	129000000	usd
CY2023	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-13000000	usd
CY2022	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	5000000	usd
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	16000000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1874000000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1108000000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1441000000	usd
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2575000000	usd
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2297000000	usd
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1764000000	usd
CY2023	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	81000000	usd
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	315000000	usd
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	135000000	usd
CY2023	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	0	usd
CY2022	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	608000000	usd
CY2021	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	472000000	usd
CY2023	us-gaap	Payments For Proceeds From Removal Costs PaymentsForProceedsFromRemovalCosts	159000000	usd
CY2022	us-gaap	Payments For Proceeds From Removal Costs PaymentsForProceedsFromRemovalCosts	123000000	usd
CY2021	us-gaap	Payments For Proceeds From Removal Costs PaymentsForProceedsFromRemovalCosts	109000000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2815000000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2127000000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1536000000	usd
CY2023	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1264000000	usd
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	822000000	usd
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	1118000000	usd
CY2023	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	282000000	usd
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	15000000	usd
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	372000000	usd
CY2023	awk	Proceeds Repayment From Term Loan ProceedsRepaymentFromTermLoan	0	usd
CY2022	awk	Proceeds Repayment From Term Loan ProceedsRepaymentFromTermLoan	0	usd
CY2021	awk	Proceeds Repayment From Term Loan ProceedsRepaymentFromTermLoan	-500000000	usd
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1688000000	usd
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	usd
CY2023	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-996000000	usd
CY2022	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	591000000	usd
CY2021	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-198000000	usd
CY2023	us-gaap	Repayments Of Construction Loans Payable RepaymentsOfConstructionLoansPayable	25000000	usd
CY2022	us-gaap	Repayments Of Construction Loans Payable RepaymentsOfConstructionLoansPayable	19000000	usd
CY2021	us-gaap	Repayments Of Construction Loans Payable RepaymentsOfConstructionLoansPayable	25000000	usd
CY2023	us-gaap	Proceeds From Advances For Construction ProceedsFromAdvancesForConstruction	60000000	usd
CY2022	us-gaap	Proceeds From Advances For Construction ProceedsFromAdvancesForConstruction	74000000	usd
CY2021	us-gaap	Proceeds From Advances For Construction ProceedsFromAdvancesForConstruction	62000000	usd
CY2023	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	16000000	usd
CY2022	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	7000000	usd
CY2021	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	26000000	usd
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	532000000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	467000000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	428000000	usd
CY2023	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	2000000	usd
CY2022	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	2000000	usd
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1000000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1188000000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1000000000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-345000000	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	247000000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-19000000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-440000000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	117000000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	136000000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	576000000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	364000000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	117000000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	136000000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	445000000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	414000000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	389000000	usd
CY2023	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	30000000	usd
CY2022	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	2000000	usd
CY2021	us-gaap	Proceeds From Income Tax Refunds ProceedsFromIncomeTaxRefunds	6000000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	0	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	335000000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1000000	usd
CY2023	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	399000000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	330000000	usd
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	292000000	usd
CY2023	awk	Noncash Or Part Noncash Disposal Notes Receivable NoncashOrPartNoncashDisposalNotesReceivable	0	usd
CY2022	awk	Noncash Or Part Noncash Disposal Notes Receivable NoncashOrPartNoncashDisposalNotesReceivable	0	usd
CY2021	awk	Noncash Or Part Noncash Disposal Notes Receivable NoncashOrPartNoncashDisposalNotesReceivable	720000000	usd
CY2023	awk	Noncash Or Part Noncash Disposal Contingent Cash Payment NoncashOrPartNoncashDisposalContingentCashPayment	0	usd
CY2022	awk	Noncash Or Part Noncash Disposal Contingent Cash Payment NoncashOrPartNoncashDisposalContingentCashPayment	0	usd
CY2021	awk	Noncash Or Part Noncash Disposal Contingent Cash Payment NoncashOrPartNoncashDisposalContingentCashPayment	75000000	usd
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	6454000000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1263000000	usd
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	17000000	usd
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	4000000	usd
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.41
CY2021	us-gaap	Dividends Cash DividendsCash	440000000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	7298000000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	820000000	usd
CY2022	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	31000000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	22000000	usd
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.62
CY2022	us-gaap	Dividends Cash DividendsCash	478000000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	7693000000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	944000000	usd
CY2023	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	1715000000	usd
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3000000	usd
CY2023	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	2.83
CY2023	us-gaap	Dividends Cash DividendsCash	552000000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	9797000000	usd
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:3pt;margin-top:18pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Use of Estimates</span></div><div style="margin-bottom:18pt;margin-top:3pt;text-align:justify;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The preparation of financial statements in conformity with GAAP requires that management make estimates, assumptions and judgments that could affect the Company’s financial condition, results of operations and cash flows. Actual results could differ from these estimates, assumptions and judgments. The Company considers its critical accounting estimates to include (i) the application of regulatory accounting principles and the related determination and estimation of regulatory assets and liabilities, (ii) revenue recognition and the estimates used in the calculation of unbilled revenue, (iii) accounting for income taxes, (iv) benefit plan assumptions and (v) the estimates and judgments used in determining loss contingencies. The Company’s critical accounting estimates that are particularly sensitive to change in the near term are amounts reported for regulatory assets and liabilities, income taxes, benefit plan assumptions and contingency-related obligations.</span></div>
CY2023Q4	awk	Repayment Of Advances For Construction RepaymentOfAdvancesForConstruction	18000000	usd
CY2022Q4	awk	Repayment Of Advances For Construction RepaymentOfAdvancesForConstruction	19000000	usd
CY2023	awk	Amortization Of Contributions In Aid Of Construction AmortizationOfContributionsInAidOfConstruction	40000000	usd
CY2022	awk	Amortization Of Contributions In Aid Of Construction AmortizationOfContributionsInAidOfConstruction	37000000	usd
CY2021	awk	Amortization Of Contributions In Aid Of Construction AmortizationOfContributionsInAidOfConstruction	36000000	usd
CY2023	awk	Contractwith Customer Payment Term From Billing Period ContractwithCustomerPaymentTermFromBillingPeriod	P30D
CY2023	us-gaap	Derivatives Reporting Of Derivative Activity DerivativesReportingOfDerivativeActivity	<div style="margin-bottom:3pt;margin-top:18pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Derivative Financial Instruments</span></div><div style="margin-bottom:12pt;margin-top:3pt;text-align:justify;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company uses derivative financial instruments primarily for purposes of hedging exposures to fluctuations in interest rates. These derivative contracts are entered into for periods consistent with the related underlying exposures and do not constitute positions independent of those exposures. The Company does not enter into derivative contracts for speculative purposes and does not use leveraged instruments.</span></div><div style="margin-bottom:12pt;margin-top:12pt;text-align:justify;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">All derivatives are recognized on the balance sheet at fair value. On the date the derivative contract is entered into, the Company designates the derivative as a hedge of a forecasted transaction or of the variability of cash flows to be received or paid related to a recognized asset or liability (cash-flow hedge).</span></div><div style="margin-bottom:12pt;margin-top:12pt;text-align:justify;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The gains and losses on the effective portion of cash-flow hedges are recorded in other comprehensive income, until earnings are affected by the variability of cash flows. Any ineffective portion of designated cash-flow hedges is recognized in current-period earnings.</span></div>Cash flows from derivative contracts are included in net cash provided by operating activities on the Consolidated Statements of Cash Flows.
CY2023	awk	Cumulative Gains Losses As Percentage Of Benefit Obligations Or Plan Assets CumulativeGainsLossesAsPercentageOfBenefitObligationsOrPlanAssets	0.10
CY2023	awk	Reduction Of Expected Future Service Of Plan Participants ReductionOfExpectedFutureServiceOfPlanParticipants	0.10
CY2023	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="margin-bottom:3pt;margin-top:12pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:700;line-height:120%">Reclassifications</span></div><div style="margin-bottom:12pt;margin-top:3pt;text-align:justify;text-indent:27pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Certain reclassifications have been made to prior periods in the Consolidated Financial Statements and Notes to conform to the current presentation.</span></div>
CY2023	awk	Public Utilities General Rate Case Authorizations Annualized Incremental Revenues Including Reduction For The Amortization Of The Excess Accumulated Deferred Income Taxes PublicUtilitiesGeneralRateCaseAuthorizationsAnnualizedIncrementalRevenuesIncludingReductionForTheAmortizationOfTheExcessAccumulatedDeferredIncomeTaxes	273000000	usd
CY2023	awk	Public Utilities Infrastructure Surcharge Authorizations PublicUtilitiesInfrastructureSurchargeAuthorizations	86000000	usd
CY2023Q4	awk	Regulatory Asset Earned Revenue Percentage RegulatoryAssetEarnedRevenuePercentage	0.50
CY2023Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	1106000000	usd
CY2022Q4	us-gaap	Regulatory Assets Noncurrent RegulatoryAssetsNoncurrent	990000000	usd
CY2023Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	13000000	usd
CY2022Q4	us-gaap	Regulatory Assets Current RegulatoryAssetsCurrent	40000000	usd
CY2023Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	1481000000	usd
CY2022Q4	us-gaap	Regulatory Liability Noncurrent RegulatoryLiabilityNoncurrent	1590000000	usd
CY2023Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	1000000	usd
CY2022Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	5000000	usd
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	4217000000	usd
CY2023	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	17000000	usd
CY2023	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	4234000000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3763000000	usd
CY2022	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	29000000	usd
CY2022	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	3792000000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3914000000	usd
CY2021	us-gaap	Revenue Not From Contract With Customer Other RevenueNotFromContractWithCustomerOther	16000000	usd
CY2021	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	3930000000	usd
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CY2022Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	86000000	usd
CY2021Q4	us-gaap	Contract With Customer Asset Net ContractWithCustomerAssetNet	71000000	usd
CY2023	awk	Contractwith Customer Asset Additions ContractwithCustomerAssetAdditions	87000000	usd
CY2023	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	78000000	usd
CY2022	awk	Contractwith Customer Asset Additions ContractwithCustomerAssetAdditions	161000000	usd
CY2022	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	146000000	usd
CY2023Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	63000000	usd
CY2022Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	91000000	usd
CY2021Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	19000000	usd
CY2023	awk	Contractwith Customer Liability Additions ContractwithCustomerLiabilityAdditions	103000000	usd
CY2023	awk	Contract With Customer Liability Revenue Recognized During The Period ContractWithCustomerLiabilityRevenueRecognizedDuringThePeriod	131000000	usd
CY2022	awk	Contractwith Customer Liability Additions ContractwithCustomerLiabilityAdditions	189000000	usd
CY2022	awk	Contract With Customer Liability Revenue Recognized During The Period ContractWithCustomerLiabilityRevenueRecognizedDuringThePeriod	117000000	usd
CY2023	awk	Number Of Assets Acquired From Business Combination And Asset Acquisition NumberOfAssetsAcquiredFromBusinessCombinationAndAssetAcquisition	23	acquisition
CY2023	awk	Business Combination And Asset Acquisition Consideration Transferred BusinessCombinationAndAssetAcquisitionConsiderationTransferred	77000000	usd
CY2023	awk	Business Combination And Asset Acquisition Assets BusinessCombinationAndAssetAcquisitionAssets	81000000	usd
CY2023Q4	awk	Business Combination And Asset Acquisition Liabilities BusinessCombinationAndAssetAcquisitionLiabilities	4000000	usd
CY2023	awk	Number Of Assets Acquired From Business Combination NumberOfAssetsAcquiredFromBusinessCombination	5	acquisition
CY2022	awk	Number Of Assets Acquired From Business Combination And Asset Acquisition NumberOfAssetsAcquiredFromBusinessCombinationAndAssetAcquisition	26	acquisition
CY2022	awk	Business Combination And Asset Acquisition Consideration Transferred BusinessCombinationAndAssetAcquisitionConsiderationTransferred	335000000	usd
CY2022	awk	Business Combination And Asset Acquisition Assets BusinessCombinationAndAssetAcquisitionAssets	337000000	usd
CY2022Q4	awk	Business Combination And Asset Acquisition Liabilities BusinessCombinationAndAssetAcquisitionLiabilities	6000000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	1040000000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	974000000	usd
CY2023Q4	awk	Public Utilities Property Plant And Equipment Other Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipmentNet	24000000	usd
CY2022Q4	awk	Public Utilities Property Plant And Equipment Other Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentOtherPropertyPlantAndEquipmentNet	23000000	usd
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CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	29627000000	usd
CY2023Q4	awk	Public Non Utilities Property Plant And Equipment Plant For Internal Operations PublicNonUtilitiesPropertyPlantAndEquipmentPlantForInternalOperations	139000000	usd
CY2022Q4	awk	Public Non Utilities Property Plant And Equipment Plant For Internal Operations PublicNonUtilitiesPropertyPlantAndEquipmentPlantForInternalOperations	109000000	usd
CY2023Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	32189000000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	29736000000	usd
CY2023	us-gaap	Depreciation Depreciation	617000000	usd
CY2022	us-gaap	Depreciation Depreciation	552000000	usd
CY2021	us-gaap	Depreciation Depreciation	550000000	usd
CY2023	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0268
CY2022	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0260
CY2021	us-gaap	Public Utilities Property Plant And Equipment Disclosure Of Composite Depreciation Rate For Plants In Service PublicUtilitiesPropertyPlantAndEquipmentDisclosureOfCompositeDepreciationRateForPlantsInService	0.0277
CY2023	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	399000000	usd
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	330000000	usd
CY2023	us-gaap	Investment Tax Credit InvestmentTaxCredit	161000000	usd
CY2023Q1	us-gaap	Investment Tax Credit InvestmentTaxCredit	16000000	usd
CY2022Q4	us-gaap	Investment Tax Credit InvestmentTaxCredit	16000000	usd
CY2023Q1	awk	Investment Tax Credit Sold To External Parties InvestmentTaxCreditSoldToExternalParties	15000000	usd
CY2022Q4	awk	Investment Tax Credit Sold To External Parties InvestmentTaxCreditSoldToExternalParties	15000000	usd
CY2023Q4	awk	Investment Tax Credit Increase Decrease To Receivable InvestmentTaxCreditIncreaseDecreaseToReceivable	-7000000	usd
CY2023Q1	awk	Investment Tax Credit Sold To External Parties InvestmentTaxCreditSoldToExternalParties	15000000	usd
CY2022Q4	awk	Investment Tax Credit Sold To External Parties InvestmentTaxCreditSoldToExternalParties	15000000	usd
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CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	75000000	usd
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CY2023	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	24000000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	24000000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	37000000	usd
CY2023	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	28000000	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	27000000	usd
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	35000000	usd
CY2023	awk	Accounts Receivable Allowance For Credit Loss Assets Held For Sale AccountsReceivableAllowanceForCreditLossAssetsHeldForSale	5000000	usd
CY2022	awk	Accounts Receivable Allowance For Credit Loss Assets Held For Sale AccountsReceivableAllowanceForCreditLossAssetsHeldForSale	12000000	usd
CY2021	awk	Accounts Receivable Allowance For Credit Loss Assets Held For Sale AccountsReceivableAllowanceForCreditLossAssetsHeldForSale	-13000000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	51000000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	60000000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	75000000	usd
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CY2021Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	2440000000	usd
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CY2022	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	4000000	usd
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CY2022Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	2440000000	usd
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CY2023	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	0	usd
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CY2023Q4	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	2440000000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	1143000000	usd
CY2023	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
CY2022	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
CY2023Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	5100000	shares
CY2022	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	19000000	usd
CY2022	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-3000000	usd
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CY2023	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-7000000	usd
CY2023	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-4000000	usd
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CY2022Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.6550
CY2021Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.6025
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CY2022Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.6550
CY2021Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.6025
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CY2022Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.6025
CY2021Q1	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.5500
CY2023Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.7075
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	25000000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	28000000	usd
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CY2022Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	281000000	usd
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CY2022Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	10929000000	usd
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CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	475000000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	619000000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1478000000	usd
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CY2023Q4	awk	Commercial Paper And Line Of Credit Facility Remaining Borrowing Capacity CommercialPaperAndLineOfCreditFacilityRemainingBorrowingCapacity	2500000000	usd
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CY2022Q4	awk	Commercial Paper Outstanding CommercialPaperOutstanding	1177000000	usd
CY2023Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	179000000	usd
CY2022Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	1175000000	usd
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CY2023Q4	awk	Commercial Paper Maximum Borrowing Capacity CommercialPaperMaximumBorrowingCapacity	2600000000	usd
CY2023Q4	awk	Commercial Paper And Line Of Credit Facility Maximum Borrowing Capacity CommercialPaperAndLineOfCreditFacilityMaximumBorrowingCapacity	2750000000	usd
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CY2023Q4	awk	Commercial Paper And Line Of Credit Facility Remaining Borrowing Capacity CommercialPaperAndLineOfCreditFacilityRemainingBorrowingCapacity	2500000000	usd
CY2022Q4	awk	Commercial Paper Maximum Borrowing Capacity CommercialPaperMaximumBorrowingCapacity	2600000000	usd
CY2022Q4	awk	Commercial Paper And Line Of Credit Facility Maximum Borrowing Capacity CommercialPaperAndLineOfCreditFacilityMaximumBorrowingCapacity	2750000000	usd
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CY2022Q4	awk	Commercial Paper And Line Of Credit Facility Outstanding CommercialPaperAndLineOfCreditFacilityOutstanding	1255000000	usd
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CY2022Q4	awk	Commercial Paper And Line Of Credit Facility Remaining Borrowing Capacity CommercialPaperAndLineOfCreditFacilityRemainingBorrowingCapacity	1500000000	usd
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CY2023	awk	Property And Capital Stock Tax PropertyAndCapitalStockTax	119000000	usd
CY2022	awk	Property And Capital Stock Tax PropertyAndCapitalStockTax	108000000	usd
CY2021	awk	Property And Capital Stock Tax PropertyAndCapitalStockTax	149000000	usd
CY2023	awk	Gross Receipts And Franchise Tax GrossReceiptsAndFranchiseTax	134000000	usd
CY2022	awk	Gross Receipts And Franchise Tax GrossReceiptsAndFranchiseTax	124000000	usd
CY2021	awk	Gross Receipts And Franchise Tax GrossReceiptsAndFranchiseTax	121000000	usd
CY2023	awk	Payroll Tax PayrollTax	38000000	usd
CY2022	awk	Payroll Tax PayrollTax	36000000	usd
CY2021	awk	Payroll Tax PayrollTax	39000000	usd
CY2023	us-gaap	Taxes Other TaxesOther	16000000	usd
CY2022	us-gaap	Taxes Other TaxesOther	13000000	usd
CY2021	us-gaap	Taxes Other TaxesOther	12000000	usd
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CY2022	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	281000000	usd
CY2021	us-gaap	Utilities Operating Expense Taxes UtilitiesOperatingExpenseTaxes	321000000	usd
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CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	26000000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	72000000	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	28000000	usd
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CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	75000000	usd
CY2023	us-gaap	Current Federal State And Local Tax Expense Benefit CurrentFederalStateAndLocalTaxExpenseBenefit	44000000	usd
CY2022	us-gaap	Current Federal State And Local Tax Expense Benefit CurrentFederalStateAndLocalTaxExpenseBenefit	108000000	usd
CY2021	us-gaap	Current Federal State And Local Tax Expense Benefit CurrentFederalStateAndLocalTaxExpenseBenefit	147000000	usd
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CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2023	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.040
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.041
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.039
CY2023	awk	Effective Income Tax Rate Reconciliation Excess Accumulated Deferred Income Taxes Percent EffectiveIncomeTaxRateReconciliationExcessAccumulatedDeferredIncomeTaxesPercent	-0.042
CY2022	awk	Effective Income Tax Rate Reconciliation Excess Accumulated Deferred Income Taxes Percent EffectiveIncomeTaxRateReconciliationExcessAccumulatedDeferredIncomeTaxesPercent	-0.065
CY2021	awk	Effective Income Tax Rate Reconciliation Excess Accumulated Deferred Income Taxes Percent EffectiveIncomeTaxRateReconciliationExcessAccumulatedDeferredIncomeTaxesPercent	-0.036
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	0
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Disposition Of Business EffectiveIncomeTaxRateReconciliationDispositionOfBusiness	0.016
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.003
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.001
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Reconciling Items Percent EffectiveIncomeTaxRateReconciliationOtherReconcilingItemsPercent	0.001
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.211
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.187
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.230
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CY2022Q4	awk	Deferred Tax Assets Advances And Contributions DeferredTaxAssetsAdvancesAndContributions	351000000	usd
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CY2022Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	19000000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	191000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	203000000	usd
CY2023Q4	awk	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions And Other Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensionsAndOtherPostretirementBenefits	75000000	usd
CY2022Q4	awk	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions And Other Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensionsAndOtherPostretirementBenefits	64000000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	172000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	140000000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	933000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	777000000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	11000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	11000000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	922000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	766000000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	3269000000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2872000000	usd
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CY2023Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	2699000000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	2419000000	usd
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CY2022	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	26000000	usd
CY2022	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	8000000	usd
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CY2023	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	27000000	usd
CY2023	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	37000000	usd
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CY2022Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	793000000	usd
CY2023Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	688000000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	632000000	usd
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CY2023	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	14000000	usd
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CY2023	awk	Defined Contribution Plan Additional Base Pay Cost DefinedContributionPlanAdditionalBasePayCost	17000000	usd
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CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	182000000	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	182000000	shares
CY2023	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2022	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2021	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	193000000	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	182000000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	182000000	shares
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1000000	shares
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CY2023Q4	awk	Rabbi Trust Investments RabbiTrustInvestments	22000000	usd
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CY2022Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	24000000	usd
CY2022Q4	us-gaap	Fair Value Net Asset Liability FairValueNetAssetLiability	323000000	usd
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CY2023Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	144000000	usd
CY2022Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	145000000	usd
CY2023	us-gaap	Operating Lease Expense OperatingLeaseExpense	11000000	usd
CY2022	us-gaap	Operating Lease Expense OperatingLeaseExpense	12000000	usd
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	13000000	usd
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CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	11000000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P17Y
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.04
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	10000000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	10000000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	9000000	usd
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CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	76000000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	39000000	usd
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	segment
CY2023	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	4234000000	usd
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CY2023	us-gaap	Operating Expenses OperatingExpenses	2730000000	usd
CY2023	awk	Interest Expense Nonoperating InterestExpenseNonoperating	460000000	usd
CY2023	awk	Interest Income Nonoperating InterestIncomeNonoperating	73000000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	252000000	usd
CY2023	us-gaap	Net Income Loss NetIncomeLoss	944000000	usd
CY2023Q4	us-gaap	Assets Assets	30298000000	usd
CY2023	us-gaap	Segment Expenditure Addition To Long Lived Assets SegmentExpenditureAdditionToLongLivedAssets	2575000000	usd
CY2022	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	3792000000	usd
CY2022	us-gaap	Utilities Operating Expense Depreciation And Amortization UtilitiesOperatingExpenseDepreciationAndAmortization	649000000	usd
CY2022	us-gaap	Operating Expenses OperatingExpenses	2519000000	usd
CY2022	awk	Interest Expense Nonoperating InterestExpenseNonoperating	433000000	usd
CY2022	awk	Interest Income Nonoperating InterestIncomeNonoperating	52000000	usd
CY2022	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	19000000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	188000000	usd
CY2022	us-gaap	Net Income Loss NetIncomeLoss	820000000	usd
CY2022Q4	us-gaap	Assets Assets	27787000000	usd
CY2022	us-gaap	Segment Expenditure Addition To Long Lived Assets SegmentExpenditureAdditionToLongLivedAssets	2297000000	usd
CY2021	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	3930000000	usd
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CY2021	us-gaap	Operating Expenses OperatingExpenses	2734000000	usd
CY2021	awk	Interest Expense Nonoperating InterestExpenseNonoperating	403000000	usd
CY2021	awk	Interest Income Nonoperating InterestIncomeNonoperating	4000000	usd
CY2021	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	747000000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	377000000	usd
CY2021	us-gaap	Net Income Loss NetIncomeLoss	1263000000	usd
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CY2021	us-gaap	Segment Expenditure Addition To Long Lived Assets SegmentExpenditureAdditionToLongLivedAssets	1764000000	usd
CY2023Q1	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	938000000	usd
CY2023Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1097000000	usd
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CY2023Q4	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1032000000	usd
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CY2023Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	432000000	usd
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CY2023Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	299000000	usd
CY2023Q1	us-gaap	Net Income Loss NetIncomeLoss	170000000	usd
CY2023Q2	us-gaap	Net Income Loss NetIncomeLoss	280000000	usd
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CY2023Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.91
CY2023Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.44
CY2023Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.66
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CY2023Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.44
CY2023Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.66
CY2023Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.88
CY2022Q1	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	842000000	usd
CY2022Q2	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	937000000	usd
CY2022Q3	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	1082000000	usd
CY2022Q4	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	931000000	usd
CY2022Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	246000000	usd
CY2022Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	327000000	usd
CY2022Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	439000000	usd
CY2022Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	261000000	usd
CY2022Q1	us-gaap	Net Income Loss NetIncomeLoss	158000000	usd
CY2022Q2	us-gaap	Net Income Loss NetIncomeLoss	218000000	usd
CY2022Q3	us-gaap	Net Income Loss NetIncomeLoss	297000000	usd
CY2022Q4	us-gaap	Net Income Loss NetIncomeLoss	147000000	usd
CY2022Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.87
CY2022Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.20
CY2022Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.63
CY2022Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.81
CY2022Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.87
CY2022Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.20
CY2022Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.63
CY2022Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.81

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$AWK
American Water Works Company, Inc. Stock $awk

2024 Q1 Form 10-K Financial Statement

#000141063624000050 Filed on February 14, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AWK American Water Works Company, Inc. Stock $awk

2024 Q1 Form 10-K Financial Statement

#000141063624000050 Filed on February 14, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AWK
American Water Works Company, Inc. Stock $awk