Leases - Summary of Lease information (Parenthetical) (Details) - USD ($) $ in Millions	6 Months Ended	9 Months Ended
Jun. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Leases [Abstract]
Non-cash component of lease expense		$ 17.9	$ 18.0
Increase (decrease) in right-of-use asset	$ 15.2		8.2
Increase (decrease) in operating lease liabilities	$ 15.2		$ 8.2

Amount of amortization expense attributable to right-of-use asset from operating lease.

No definition available.

Name:	chd_OperatingLeaseRighOfUseAssetAmortization
Namespace Prefix:	chd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration