$AOS
A O Smith Corp Stock $aos

$aos Overview Financials Valuation SEC Filings Company Website

2023 Q4 Form 10-K Financial Statement

#000009114224000041 Filed on February 13, 2024

Income Statement

Concept	2023 Q4	2023
Revenue	$988.1M	$3.853B
YoY Change	5.55%	2.63%
Cost Of Revenue	$618.3M	$2.368B
YoY Change	5.24%	-2.32%
Gross Profit	$369.8M	$1.485B
YoY Change	6.08%	11.67%
Gross Profit Margin	37.43%	38.54%
Selling, General & Admin	$185.0M	$727.4M
YoY Change	9.53%	8.42%
% of Gross Profit	50.03%	48.99%
Research & Development		$97.50M
YoY Change		9.55%
% of Gross Profit		6.57%
Depreciation & Amortization	$20.80M	$78.30M
YoY Change	1.96%	1.82%
% of Gross Profit	5.62%	5.27%
Operating Expenses	$188.6M	$720.5M
YoY Change	-67.93%	-34.29%
Operating Profit	$181.2M	$764.3M
YoY Change	-175.66%	227.89%
Interest Expense	-$1.100M	-$12.00M
YoY Change	-67.65%	27.66%
% of Operating Profit	-0.61%	-1.57%
Other Income/Expense, Net		$6.900M
YoY Change		-101.62%
Pretax Income	$176.9M	$733.5M
YoY Change	-172.83%	227.89%
Income Tax	$39.60M	$176.9M
% Of Pretax Income	22.39%	24.12%
Net Earnings	$137.3M	$556.6M
YoY Change	-214.32%	136.15%
Net Earnings / Revenue	13.9%	14.45%
Basic Earnings Per Share		$3.71
Diluted Earnings Per Share	$0.92	$3.69
COMMON SHARES
Basic Shares Outstanding		150.0M shares
Diluted Shares Outstanding		151.0M shares

Balance Sheet

Concept	2023 Q4	2023
SHORT-TERM ASSETS
Cash & Short-Term Investments	$363.4M	$363.4M
YoY Change	-24.57%	-24.57%
Cash & Equivalents	$339.9M	$339.9M
Short-Term Investments	$23.50M	$23.50M
Other Short-Term Assets	$43.50M	$43.50M
YoY Change	-19.89%	-19.89%
Inventory	$497.4M	$497.4M
Prepaid Expenses
Receivables	$596.0M	$596.0M
Other Receivables	$0.00	$0.00
Total Short-Term Assets	$1.500B	$1.500B
YoY Change	-8.17%	-8.17%
LONG-TERM ASSETS
Property, Plant & Equipment	$634.8M	$634.8M
YoY Change	2.3%	2.3%
Goodwill	$633.4M
YoY Change	2.21%
Intangibles	$336.7M
YoY Change	-3.22%
Long-Term Investments
YoY Change
Other Assets	$108.7M	$108.7M
YoY Change	-1.63%	-1.63%
Total Long-Term Assets	$1.714B	$1.714B
YoY Change	0.88%	0.88%
TOTAL ASSETS
Total Short-Term Assets	$1.500B	$1.500B
Total Long-Term Assets	$1.714B	$1.714B
Total Assets	$3.214B	$3.214B
YoY Change	-3.55%	-3.55%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$600.4M	$600.4M
YoY Change	-4.06%	-4.06%
Accrued Expenses	$269.6M	$269.6M
YoY Change	14.82%	14.82%
Deferred Revenue	$59.70M
YoY Change	-30.34%
Short-Term Debt	$0.00	$0.00
YoY Change
Long-Term Debt Due	$10.00M	$10.00M
YoY Change	0.0%	0.0%
Total Short-Term Liabilities	$945.3M	$945.3M
YoY Change	1.19%	1.19%
LONG-TERM LIABILITIES
Long-Term Debt	$117.3M	$117.3M
YoY Change	-64.93%	-64.93%
Other Long-Term Liabilities	$306.9M	$306.9M
YoY Change	-2.85%	-2.85%
Total Long-Term Liabilities	$424.2M	$424.2M
YoY Change	-34.78%	-34.78%
TOTAL LIABILITIES
Total Short-Term Liabilities	$945.3M	$945.3M
Total Long-Term Liabilities	$424.2M	$424.2M
Total Liabilities	$1.370B	$1.370B
YoY Change	-13.57%	-13.57%
SHAREHOLDERS EQUITY
Retained Earnings	$3.258B
YoY Change	12.93%
Common Stock	$578.2M
YoY Change	4.01%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$2.203B
YoY Change	15.57%
Treasury Stock Shares
Shareholders Equity	$1.844B	$1.844B
YoY Change
Total Liabilities & Shareholders Equity	$3.214B	$3.214B
YoY Change	-3.55%	-3.55%

Cashflow Statement

Concept	2023 Q4	2023
OPERATING ACTIVITIES
Net Income	$137.3M	$556.6M
YoY Change	-214.32%	136.15%
Depreciation, Depletion And Amortization	$20.80M	$78.30M
YoY Change	1.96%	1.82%
Cash From Operating Activities	$231.3M	$670.3M
YoY Change	30.9%	71.26%
INVESTING ACTIVITIES
Capital Expenditures	$29.90M	$72.60M
YoY Change	-254.12%	-203.27%
Acquisitions		$16.80M
YoY Change		110.0%
Other Investing Activities	$36.60M	$48.50M
YoY Change	-218.83%	-38.14%
Cash From Investing Activities	$6.700M	-$24.10M
YoY Change	-113.35%	-397.53%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	-$133.0M	-$283.1M
YoY Change	10.28%	-29.96%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-184.0M	-684.7M
YoY Change	66.21%	58.94%
NET CHANGE
Cash From Operating Activities	231.3M	670.3M
Cash From Investing Activities	6.700M	-24.10M
Cash From Financing Activities	-184.0M	-684.7M
Net Change In Cash	54.00M	-38.50M
YoY Change	241.77%	23.0%
FREE CASH FLOW
Cash From Operating Activities	$231.3M	$670.3M
Capital Expenditures	$29.90M	$72.60M
Free Cash Flow	$201.4M	$597.7M
YoY Change	2.7%	29.46%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2023	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	16800000	usd
CY2023	dei	Amendment Flag AmendmentFlag	false
CY2023	dei	Entity Central Index Key EntityCentralIndexKey	0000091142
CY2023	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2023	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2023
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CY2023Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#AccruedLiabilitiesCurrent
CY2023	aos	Common Stock Voting Rights Allowable Percentage Of Board Of Directors To Elect CommonStockVotingRightsAllowablePercentageOfBoardOfDirectorsToElect	0.3333
CY2023	aos	Common Stock Voting Rights Matters Other Than Election Of Board Of Directors Vote Per Share CommonStockVotingRightsMattersOtherThanElectionOfBoardOfDirectorsVotePerShare	0.1	vote
CY2023	dei	Document Annual Report DocumentAnnualReport	true
CY2023	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2023	dei	Document Transition Report DocumentTransitionReport	false
CY2023	dei	Entity File Number EntityFileNumber	1-475
CY2023	dei	Entity Registrant Name EntityRegistrantName	A. O. Smith Corporation
CY2023	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2023	dei	Entity Address Address Line1 EntityAddressAddressLine1	11270 West Park Place
CY2023	dei	Entity Address City Or Town EntityAddressCityOrTown	Milwaukee
CY2023	dei	Entity Address State Or Province EntityAddressStateOrProvince	WI
CY2023	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	39-0619790
CY2023	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	53224-9508
CY2023	dei	City Area Code CityAreaCode	414
CY2023	dei	Local Phone Number LocalPhoneNumber	359-4000
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 Emerging Growth Company EntityEmergingGrowthCompany	false
CY2023	dei	Entity Small Business EntitySmallBusiness	false
CY2023	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2023	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2023	dei	Entity Shell Company EntityShellCompany	false
CY2023	dei	Auditor Name AuditorName	Ernst & Young LLP
CY2023	dei	Auditor Location AuditorLocation	Milwaukee, Wisconsin
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CY2022Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	391200000	usd
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CY2022Q4	us-gaap	Inventory Net InventoryNet	516400000	usd
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CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	597500000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	590700000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	633400000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	619700000	usd
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CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	29800000	usd
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CY2022Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	63600000	usd
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CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	117300000	usd
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CY2023	us-gaap	Increase Decrease In Other Current Assets And Liabilities Net IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet	-20000000.0	usd
CY2022	us-gaap	Increase Decrease In Other Current Assets And Liabilities Net IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet	194100000	usd
CY2021	us-gaap	Increase Decrease In Other Current Assets And Liabilities Net IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet	-90800000	usd
CY2023	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	7200000	usd
CY2022	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	-12200000	usd
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	670300000	usd
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	391400000	usd
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	641100000	usd
CY2023	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	72600000	usd
CY2022	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	70300000	usd
CY2021	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	185400000	usd
CY2022	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	178000000.0	usd
CY2021	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	118200000	usd
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-24100000	usd
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	8100000	usd
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-349900000	usd
CY2023	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	-218100000	usd
CY2022	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	150600000	usd
CY2021	us-gaap	Proceeds From Repayments Of Debt ProceedsFromRepaymentsOfDebt	83500000	usd
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	306500000	usd
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	403500000	usd
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	366500000	usd
CY2023	aos	Payments For Proceeds From Stock Options Activity PaymentsForProceedsFromStockOptionsActivity	-23400000	usd
CY2022	aos	Payments For Proceeds From Stock Options Activity PaymentsForProceedsFromStockOptionsActivity	700000	usd
CY2021	aos	Payments For Proceeds From Stock Options Activity PaymentsForProceedsFromStockOptionsActivity	-32100000	usd
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	183500000	usd
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	177200000	usd
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	170100000	usd
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-684700000	usd
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-430800000	usd
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-421000000.0	usd
CY2023	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-12800000	usd
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-20800000	usd
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	0	usd
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-51300000	usd
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-52100000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-129800000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	391200000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	443300000	usd
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	573100000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	339900000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	391200000	usd
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	443300000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	1844400000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	1747700000	usd
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	1832200000	usd
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2023Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	44200000	usd
CY2023	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Use of estimates. </span><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 accounting principles generally accepted in the United States (U.S.) requires management to make estimates and assumptions that affect the amounts reported in the accompanying financial statements and notes. Actual results could differ from those estimates.</span></div>
CY2023Q4	us-gaap	Notes Payable Fair Value Disclosure NotesPayableFairValueDisclosure	116500000	usd
CY2023Q4	us-gaap	Notes Payable NotesPayable	127300000	usd
CY2022Q4	us-gaap	Notes Payable Fair Value Disclosure NotesPayableFairValueDisclosure	120200000	usd
CY2022Q4	us-gaap	Notes Payable NotesPayable	136500000	usd
CY2023Q4	us-gaap	Percentage Of Lifo Inventory PercentageOfLIFOInventory	0.39
CY2022Q4	us-gaap	Percentage Of Lifo Inventory PercentageOfLIFOInventory	0.36
CY2022Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	182500000	usd
CY2021Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	184400000	usd
CY2023	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	79900000	usd
CY2022	us-gaap	Product Warranty Accrual Warranties Issued ProductWarrantyAccrualWarrantiesIssued	64200000	usd
CY2023	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	74300000	usd
CY2022	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	66100000	usd
CY2023Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	188100000	usd
CY2022Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	182500000	usd
CY2023	us-gaap	Advertising Expense AdvertisingExpense	93900000	usd
CY2022	us-gaap	Advertising Expense AdvertisingExpense	100400000	usd
CY2021	us-gaap	Advertising Expense AdvertisingExpense	107000000	usd
CY2023	aos	Amortization Of Advertising Costs AmortizationOfAdvertisingCosts	15200000	usd
CY2022	aos	Amortization Of Advertising Costs AmortizationOfAdvertisingCosts	17200000	usd
CY2021	aos	Amortization Of Advertising Costs AmortizationOfAdvertisingCosts	25200000	usd
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	97500000	usd
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	89000000	usd
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	94200000	usd
CY2023	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3200000	usd
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1100000	usd
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	5600000	usd
CY2023	aos	Minimum Percentage Of Amount Likely To Be Realized Upon Ultimate Settlement To Recognize Tax Benefits MinimumPercentageOfAmountLikelyToBeRealizedUponUltimateSettlementToRecognizeTaxBenefits	0.50
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	149952679	shares
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	154786327	shares
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	159906834	shares
CY2023	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1062895	shares
CY2022	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	993037	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1413068	shares
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	151015574	shares
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	155779364	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	161319902	shares
CY2023Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	59700000	usd
CY2022Q4	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	85700000	usd
CY2023Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	10100000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	9500000	usd
CY2023	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3852800000	usd
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3753900000	usd
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	3538900000	usd
CY2023	aos	Lessee Operating Lease Termination Period LesseeOperatingLeaseTerminationPeriod	P1Y
CY2023Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	11600000	usd
CY2022Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	9900000	usd
CY2023Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	27900000	usd
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	22400000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	39500000	usd
CY2022Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	32300000	usd
CY2023Q4	aos	Rent Incentives And Deferrals RentIncentivesAndDeferrals	2200000	usd
CY2022Q4	aos	Rent Incentives And Deferrals RentIncentivesAndDeferrals	2500000	usd
CY2023Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	37300000	usd
CY2022Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	29800000	usd
CY2023Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y
CY2023Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0441
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	1800000	usd
CY2023	us-gaap	Variable Lease Cost VariableLeaseCost	4600000	usd
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	2100000	usd
CY2022	us-gaap	Variable Lease Cost VariableLeaseCost	3100000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	13000000.0	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	9500000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	5400000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	3600000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	2300000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	12600000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	46400000	usd
CY2023Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	6900000	usd
CY2023Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	39500000	usd
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	16400000	usd
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-42500000	usd
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	25500000	usd
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-18100000	usd
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	82800000	usd
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	109500000	usd
CY2023	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-7200000	usd
CY2022	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	9100000	usd
CY2021	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-4900000	usd
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-21400000	usd
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-89400000	usd
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	142900000	usd
CY2023	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	28400000	usd
CY2022	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	-46500000	usd
CY2021	us-gaap	Increase Decrease In Accrued Liabilities And Other Operating Liabilities IncreaseDecreaseInAccruedLiabilitiesAndOtherOperatingLiabilities	56300000	usd
CY2023	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	4100000	usd
CY2022	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	-8800000	usd
CY2021	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	21700000	usd
CY2023	us-gaap	Increase Decrease In Other Current Assets And Liabilities Net IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet	-20000000.0	usd
CY2022	us-gaap	Increase Decrease In Other Current Assets And Liabilities Net IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet	194100000	usd
CY2021	us-gaap	Increase Decrease In Other Current Assets And Liabilities Net IncreaseDecreaseInOtherCurrentAssetsAndLiabilitiesNet	-90800000	usd
CY2023	us-gaap	Interest Paid Net InterestPaidNet	12300000	usd
CY2022	us-gaap	Interest Paid Net InterestPaidNet	9300000	usd
CY2021	us-gaap	Interest Paid Net InterestPaidNet	4200000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	363400000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	481800000	usd
CY2023Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	177700000	usd
CY2022Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	174400000	usd
CY2022Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	42100000	usd
CY2023Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	322600000	usd
CY2022Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	349200000	usd
CY2023Q4	us-gaap	Inventory Gross InventoryGross	544500000	usd
CY2022Q4	us-gaap	Inventory Gross InventoryGross	565700000	usd
CY2023Q4	us-gaap	Inventory Lifo Reserve InventoryLIFOReserve	47100000	usd
CY2022Q4	us-gaap	Inventory Lifo Reserve InventoryLIFOReserve	49300000	usd
CY2023Q4	us-gaap	Inventory Net InventoryNet	497400000	usd
CY2022Q4	us-gaap	Inventory Net InventoryNet	516400000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1418600000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	1364800000	usd
CY2023Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	821100000	usd
CY2022Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	774100000	usd
CY2023Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	597500000	usd
CY2022Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	590700000	usd
CY2021Q4	us-gaap	Goodwill Goodwill	627800000	usd
CY2022	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	-8100000	usd
CY2022Q4	us-gaap	Goodwill Goodwill	619700000	usd
CY2023	us-gaap	Goodwill Foreign Currency Translation Gain Loss GoodwillForeignCurrencyTranslationGainLoss	2500000	usd
CY2023	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	11200000	usd
CY2023Q4	us-gaap	Goodwill Goodwill	633400000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	290100000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	177700000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	112400000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	292300000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	167700000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	124600000	usd
CY2023Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	514400000	usd
CY2023Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	177700000	usd
CY2023Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	336700000	usd
CY2022Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	515600000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	167700000	usd
CY2022Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	347900000	usd
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	12600000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	12800000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	12300000	usd
CY2023	us-gaap	Acquired Finite Lived Intangible Assets Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife	P11Y
CY2023	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2021	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0	usd
CY2022	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2021	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2023	us-gaap	Impairment Of Intangible Assets Excluding Goodwill ImpairmentOfIntangibleAssetsExcludingGoodwill	0	usd
CY2023Q4	us-gaap	Long Term Debt LongTermDebt	127300000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	344500000	usd
CY2023Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	10000000.0	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	10000000.0	usd
CY2023Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	117300000	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	334500000	usd
CY2023Q4	aos	Long Term Debt Fixed Interest Payment LongTermDebtFixedInterestPayment	16600000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	10000000.0	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	10000000.0	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	28500000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	28500000	usd
CY2023Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	13200000	usd
CY2023Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	3000000	shares
CY2023Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2023	aos	Common Stock Conversion Basis Ratio CommonStockConversionBasisRatio	1
CY2023	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.22
CY2022	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.14
CY2021	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.06
CY2023Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	7500000	shares
CY2023	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	4377000	shares
CY2023	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	70.03
CY2023	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	306500000	usd
CY2023Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	3501462	shares
CY2022	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	6647895	shares
CY2022	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	403500000	usd
CY2021	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	5087467	shares
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	366500000	usd
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11500000	usd
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11100000	usd
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	11900000	usd
CY2023	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	1200000	usd
CY2022	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	5500000	usd
CY2021	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	5100000	usd
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2481606	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	51.22
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2252498	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	47.73
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2785654	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	43.01
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	0	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	322460	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	74.11
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	368780	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	60.85
CY2023	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	600344	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	45.68
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	66697	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	39.77
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	889345	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	38.35
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	8709	shares
CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	66.96
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	26655	shares
CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	61.46
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	12591	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	49.18
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	1872553	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	52.93
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2481606	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	51.22
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2252498	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	47.73
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1549749	shares
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	49.51
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1675552	shares
CY2022Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	46.88
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1191795	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	45.71
CY2023	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	15000000	usd
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	1600000	usd
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	31000000	usd
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P7Y
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P8Y
CY2023Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	55300000	usd
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P6Y
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P6Y
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P7Y
CY2023Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	51000000	usd
CY2022Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	806054	shares
CY2022Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	60.26
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares	477245	shares
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedWeightedAverageGrantDateFairValue	54.05
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedNumberOfShares	6005	shares
CY2023	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Options Forfeited Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedOptionsForfeitedWeightedAverageGrantDateFairValue	66.24
CY2023Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Number Of Shares SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfShares	322804	shares
CY2023Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Nonvested Weighted Average Grant Date Fair Value SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValue	69.33
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	17.57
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	14.03
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y8M12D
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y9M18D
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.019
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.012
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.015
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.016
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.268
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.274
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	138500000	usd
CY2023	aos	Percentage Match Of First One Percent Of Contributions Made By Participating Employees PercentageMatchOfFirstOnePercentOfContributionsMadeByParticipatingEmployees	1
CY2023	aos	Percentage Match Of Next Five Percent Of Contributions Made By Participating Employees PercentageMatchOfNextFivePercentOfContributionsMadeByParticipatingEmployees	0.50
CY2021	aos	Liability Defined Benefit Plan Percentage Of Total LiabilityDefinedBenefitPlanPercentageOfTotal	0.95
CY2023Q1	aos	Number Of Former And Active Employees The Annuity Plan Covers NumberOfFormerAndActiveEmployeesTheAnnuityPlanCovers	7000	employee
CY2023	us-gaap	Pension Expense Reversal Of Expense Noncash PensionExpenseReversalOfExpenseNoncash	-900000	usd
CY2023	aos	Pension Settlement Income Expense Non Cash Taxes PensionSettlementIncomeExpenseNonCashTaxes	200000	usd
CY2023	aos	Postretirement Medical Benefits Qualifying Age PostretirementMedicalBenefitsQualifyingAge	P65Y
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	1400000	usd
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-284100000	usd
CY2023Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2022Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2023Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	20200000	usd
CY2023Q4	aos	Defined Benefit Plan Fair Value Of Non Investment Plan Assets DefinedBenefitPlanFairValueOfNonInvestmentPlanAssets	100000	usd
CY2023Q4	aos	Defined Benefit Plan Fair Value Of Plan Assets Including Noninvestment Plan Assets DefinedBenefitPlanFairValueOfPlanAssetsIncludingNoninvestmentPlanAssets	20300000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	44900000	usd
CY2022Q4	aos	Defined Benefit Plan Fair Value Of Non Investment Plan Assets DefinedBenefitPlanFairValueOfNonInvestmentPlanAssets	300000	usd
CY2022Q4	aos	Defined Benefit Plan Fair Value Of Plan Assets Including Noninvestment Plan Assets DefinedBenefitPlanFairValueOfPlanAssetsIncludingNoninvestmentPlanAssets	45200000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-34100000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-600000	usd
CY2023	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	2800000	usd
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	100000	usd
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1800000	usd
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	176900000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-12000000.0	usd
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	124900000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	101800000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	92200000	usd
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	28300000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	26600000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	22400000	usd
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	27500000	usd
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	30500000	usd
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	29500000	usd
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-4800000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-136900000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3200000	usd
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1800000	usd
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	189500000	usd
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	175400000	usd
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	131200000	usd
CY2023Q4	aos	Undistributed Earnings Of Foreign Subsidiaries Including Temporarily And Permanently Reinvested UndistributedEarningsOfForeignSubsidiariesIncludingTemporarilyAndPermanentlyReinvested	648900000	usd
CY2023	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
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	0.028
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.027
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.028
CY2023	aos	Effective Income Tax Rate Reconciliation Pension Plan Settlement Percent EffectiveIncomeTaxRateReconciliationPensionPlanSettlementPercent	0
CY2022	aos	Effective Income Tax Rate Reconciliation Pension Plan Settlement Percent EffectiveIncomeTaxRateReconciliationPensionPlanSettlementPercent	-0.295
CY2021	aos	Effective Income Tax Rate Reconciliation Pension Plan Settlement Percent EffectiveIncomeTaxRateReconciliationPensionPlanSettlementPercent	0
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.004
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.010
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits Research EffectiveIncomeTaxRateReconciliationTaxCreditsResearch	0.004
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.004
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.005
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	-0.009
CY2023	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.010
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.030
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.005
CY2023	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.241
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	-0.054
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.221
CY2022	aos	Pension Settlement Non Cash Taxes Tax Effect On Pretax Expense PensionSettlementNonCashTaxesTaxEffectOnPretaxExpense	101900000	usd
CY2022	aos	Pension Settlement Non Cash Taxes Release Of Stranded Tax Effects PensionSettlementNonCashTaxesReleaseOfStrandedTaxEffects	65800000	usd
CY2022	aos	Effective Income Tax Rate Reconciliation Pension Plan Settlement Percent EffectiveIncomeTaxRateReconciliationPensionPlanSettlementPercent	-0.295
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	596400000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	63900000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	479000000.0	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	137100000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	159800000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	146600000	usd
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	733500000	usd
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	223700000	usd
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	625600000	usd
CY2023	aos	Pension Settlement Non Cash Taxes Tax Effect On Pretax Expense PensionSettlementNonCashTaxesTaxEffectOnPretaxExpense	101900000	usd
CY2023	aos	Pension Settlement Non Cash Taxes Release Of Stranded Tax Effects PensionSettlementNonCashTaxesReleaseOfStrandedTaxEffects	65800000	usd
CY2021Q4	aos	Net Operating Losses And Tax Credits NetOperatingLossesAndTaxCredits	8900000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	8300000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	7100000	usd
CY2023	aos	Net Operating Losses And Tax Credits Increase Decrease Amount NetOperatingLossesAndTaxCreditsIncreaseDecreaseAmount	2200000	usd
CY2022	aos	Net Operating Losses And Tax Credits Increase Decrease Amount NetOperatingLossesAndTaxCreditsIncreaseDecreaseAmount	1200000	usd
CY2023	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	3400000	usd
CY2022	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	1200000	usd
CY2023Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	5100000	usd
CY2023Q4	aos	Undistributed Earnings Of Foreign Subsidiaries Not Permanently Reinvested UndistributedEarningsOfForeignSubsidiariesNotPermanentlyReinvested	156800000	usd
CY2023Q4	us-gaap	Undistributed Earnings Of Foreign Subsidiaries UndistributedEarningsOfForeignSubsidiaries	492100000	usd
CY2023Q4	aos	Percentage Of Federal Income Tax Liability Offset By Dividend Received Deduction PercentageOfFederalIncomeTaxLiabilityOffsetByDividendReceivedDeduction	1
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	12900000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	13900000	usd
CY2023Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	52100000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	50700000	usd
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CY2023	dei	Auditor Firm AuditorFirmId	42

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$AOS
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2023 Q4 Form 10-K Financial Statement

#000009114224000041 Filed on February 13, 2024

Income Statement

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Facts In Submission

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$AOS A O Smith Corp Stock $aos

2023 Q4 Form 10-K Financial Statement

#000009114224000041 Filed on February 13, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$AOS
A O Smith Corp Stock $aos