CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total Church & Dwight Co., Inc. Stockholders' Equity	Noncontrolling Interest
Beginning Balance at Dec. 31, 2013	$ 2,300.0	$ 146.4	$ (368.1)	$ 352.9	$ 2,168.5	$ 0.2	$ 2,299.9	$ 0.1
Beginning Balance (in shares) at Dec. 31, 2013		146.4	(7.5)
Net Income	191.4	$ 0.0	$ 0.0	0.0	191.4	0.0	191.4	0.0
Other comprehensive income (loss)	4.3	0.0	0.0	0.0	0.0	4.3	4.3	0.0
Cash dividends	(84.6)	0.0	0.0	0.0	(84.6)	0.0	(84.6)	0.0
Stock purchases	(435.0)	$ 0.0	$ (417.5)	(17.5)	0.0	0.0	(435.0)	0.0
Stock purchases (in shares)		0.0	(6.2)
Stock based compensation expense and stock option plan transactions, including related income tax benefits	42.4	$ 0.0	$ 34.8	7.6	0.0	0.0	42.4	0.0
Stock based compensation expense and stock option plan transactions, including related income tax benefits (in shares)		0.0	0.8
Other stock issuances	1.4	$ 0.0	$ 0.9	0.5	0.0	0.0	1.4	0.0
Other stock issuances (in shares)		0.0	0.1
Ending Balance at Jun. 30, 2014	2,019.9	$ 146.4	$ (749.9)	343.5	2,275.3	4.5	2,019.8	0.1
Ending Balance (in shares) at Jun. 30, 2014		146.4	(12.8)
Beginning Balance at Dec. 31, 2014	2,101.9	$ 146.4	$ (789.5)	364.8	2,414.9	(34.7)	2,101.9	0.0
Beginning Balance (in shares) at Dec. 31, 2014		146.4	(13.1)
Net Income	180.9	$ 0.0	$ 0.0	0.0	180.9	0.0	180.9	0.0
Other comprehensive income (loss)	0.6	0.0	0.0	0.0	0.0	0.6	0.6	0.0
Cash dividends	(87.5)	0.0	0.0	0.0	(87.5)	0.0	(87.5)	0.0
Stock purchases	(263.1)	$ 0.0	$ (263.1)	0.0	0.0	0.0	(263.1)	0.0
Stock purchases (in shares)		0.0	(3.2)
Transfer of stock for settlement of share repurchase agreement	0.0	$ 0.0	$ 4.1	(4.1)	0.0	0.0	0.0	0.0
Transfer of stock for settlement of share repurchase agreement (in shares)			0.1
Stock based compensation expense and stock option plan transactions, including related income tax benefits	38.8	$ 0.0	$ 28.2	10.6	0.0	0.0	38.8	0.0
Stock based compensation expense and stock option plan transactions, including related income tax benefits (in shares)		0.0	0.6
Ending Balance at Jun. 30, 2015	$ 1,971.6	$ 146.4	$ (1,020.3)	$ 371.3	$ 2,508.3	$ (34.1)	$ 1,971.6	$ 0.0
Ending Balance (in shares) at Jun. 30, 2015		146.4	(15.6)