| Document and Entity Information | Sep. 15, 2024 |
| Cover [Abstract] | |
| Entity Registrant Name | CHURCH & DWIGHT CO INC /DE/ |
| Amendment Flag | false |
| Entity Central Index Key | 0000313927 |
| Document Type | 8-K |
| Document Period End Date | Sep. 15, 2024 |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 1-10585 |
| Entity Tax Identification Number | 13-4996950 |
| Entity Address, Address Line One | 500 Charles Ewing Boulevard |
| Entity Address, City or Town | Ewing |
| Entity Address, State or Province | NJ |
| Entity Address, Postal Zip Code | 08628 |
| City Area Code | (609) |
| Local Phone Number | 806-1200 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $1 par value |
| Trading Symbol | CHD |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
