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<?xml version="1.0" encoding="windows-1252"?> |
<ownershipDocument> |
| <schemaVersion> X0306 </schemaVersion> |
| <documentType> 4 </documentType> |
| <periodOfReport> 2022-11-30 </periodOfReport> |
| <issuer> |
| | <issuerCik> 0000313927 </issuerCik> |
| | <issuerName> CHURCH & DWIGHT CO INC /DE/ </issuerName> |
| | <issuerTradingSymbol> CHD </issuerTradingSymbol> |
| | </issuer> |
| <reportingOwner> |
| | <reportingOwnerId> |
| | | <rptOwnerCik> 0001756765 </rptOwnerCik> |
| | | <rptOwnerName> Wood Paul Richard </rptOwnerName> |
| | | </reportingOwnerId> |
| | <reportingOwnerAddress> |
| | | <rptOwnerStreet1> PRINCETON SOUTH CORPORATE PARK </rptOwnerStreet1> |
| | | <rptOwnerStreet2></rptOwnerStreet2> |
| | | <rptOwnerCity> EWING </rptOwnerCity> |
| | | <rptOwnerState> NJ </rptOwnerState> |
| | | <rptOwnerZipCode> 08628 </rptOwnerZipCode> |
| | | <rptOwnerStateDescription></rptOwnerStateDescription> |
| | | </reportingOwnerAddress> |
| | <reportingOwnerRelationship> |
| | | <isOfficer> 1 </isOfficer> |
| | | <officerTitle> EVP Chief Commercial Officer </officerTitle> |
| | | </reportingOwnerRelationship> |
| | </reportingOwner> |
| <derivativeTable> |
| | <derivativeTransaction> |
| | | <securityTitle> |
| <value> Phantom Stock </value> |
| </securityTitle> |
| | | <conversionOrExercisePrice> |
| <footnoteId id="F1"/> |
| </conversionOrExercisePrice> |
| | | <transactionDate> |
| <value> 2022-11-30 </value> |
| </transactionDate> |
| | | <transactionCoding> |
| <transactionFormType> 4 </transactionFormType> |
| <transactionCode> A </transactionCode> |
| <equitySwapInvolved> 0 </equitySwapInvolved> |
| </transactionCoding> |
| | | <transactionTimeliness></transactionTimeliness> |
| | | <transactionAmounts> |
| <transactionShares> |
| <value> 13.262 </value> |
| </transactionShares> |
| <transactionPricePerShare> |
| <value> 81.87 </value> |
| </transactionPricePerShare> |
| <transactionAcquiredDisposedCode> |
| <value> A </value> |
| </transactionAcquiredDisposedCode> |
| </transactionAmounts> |
| | | <exerciseDate> |
| <footnoteId id="F2"/> |
| </exerciseDate> |
| | | <expirationDate> |
| <footnoteId id="F2"/> |
| </expirationDate> |
| | | <underlyingSecurity> |
| <underlyingSecurityTitle> |
| <value> Common Stock </value> |
| </underlyingSecurityTitle> |
| <underlyingSecurityShares> |
| <value> 13.262 </value> |
| </underlyingSecurityShares> |
| </underlyingSecurity> |
| | | <postTransactionAmounts> |
| <sharesOwnedFollowingTransaction> |
| <value> 7215.093 </value> |
| </sharesOwnedFollowingTransaction> |
| </postTransactionAmounts> |
| | | <ownershipNature> |
| <directOrIndirectOwnership> |
| <value> D </value> |
| </directOrIndirectOwnership> |
| </ownershipNature> |
| | | </derivativeTransaction> |
| | </derivativeTable> |
| <footnotes> |
| | <footnote id="F1"> The phantom stock shares convert to common stock on a 1-for-1 basis. </footnote> |
| | <footnote id="F2"> The phantom stock shares were acquired under the Church & Dwight Co., Inc. Deferred Compensation Plan and are to be settled in cash at such time as prescribed by the Plan. </footnote> |
| | </footnotes> |
| <ownerSignature> |
| | <signatureName> /s/ Cristina Paradiso, attorney-in-fact for Paul Wood </signatureName> |
| | <signatureDate> 2022-12-01 </signatureDate> |
| | </ownerSignature> |
| </ownershipDocument> |