Condensed Consolidated Statements of Stockholders' Equity (USD $) 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, 2011	$ 2,040.8	$ 146.4	$ (94.4)	$ 271.7	$ 1,714.0	$ 2.9	$ 2,040.6	$ 0.2
Beginning Balance (in shares) at Dec. 31, 2011		146.4	(4.1)
Net Income	269.0	0	0	0	269.0	0	269.0	0
Other comprehensive income	3.8	0	0	0	0	3.8	3.8	0
Cash dividends	(101.0)	0	0	0	(101.0)	0	(101.0)	0
Stock purchases (in shares)		0	(4.0)
Stock purchases	(200.4)	0	(200.4)	0	0	0	(200.4)	0
Stock based compensation expense and stock option plan transactions, including related income tax benefits of $10.0 in 2013 and $14.8 in 2012 (in shares)		0	1.1
Stock based compensation expense and stock option plan transactions, including related income tax benefits of $10.0 in 2013 and $14.8 in 2012	45.2	0	6.6	38.6	0	0	45.2	0
Other stock issuances (in shares)		0	0
Other stock issuances	0.8	0	0.2	0.6	0	0	0.8	0
Ending Balance at Sep. 30, 2012	2,058.2	146.4	(288.0)	310.9	1,882.0	6.7	2,058.0	0.2
Ending Balance (in shares) at Sep. 30, 2012		146.4	(7.0)
Beginning Balance at Dec. 31, 2012	2,061.1	146.4	(336.1)	318.8	1,929.3	2.5	2,060.9	0.2
Beginning Balance (in shares) at Dec. 31, 2012		146.4	(7.6)
Net Income	302.2	0	0	0	302.2	0	302.2	0
Other comprehensive income	(6.8)	0	0	0	0	(6.8)	(6.8)	0
Cash dividends	(116.3)	0	0	0	(116.3)	0	(116.3)	0
Stock purchases (in shares)		0	(0.9)
Stock purchases	(50.0)	0	(50.0)	0	0	0	(50.0)	0
Stock based compensation expense and stock option plan transactions, including related income tax benefits of $10.0 in 2013 and $14.8 in 2012 (in shares)	0.8	0	0.8
Stock based compensation expense and stock option plan transactions, including related income tax benefits of $10.0 in 2013 and $14.8 in 2012	40.5	0	4.4	36.1	0	0	40.5	0
Ending Balance at Sep. 30, 2013	$ 2,230.7	$ 146.4	$ (381.7)	$ 354.9	$ 2,115.2	$ (4.3)	$ 2,230.5	$ 0.2
Ending Balance (in shares) at Sep. 30, 2013		146.4	(7.7)