Leases - Summary of Lease information (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Leases [Abstract]
Non-cash component of lease expense		$ 16.3	$ 15.1
Increase (decrease) in right-of-use asset	$ 15.4	$ 11.0

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