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, 2009	$ 1,601.8	$ 146.4	$ (32.9)	$ 202.9	$ 1,275.1	$ 10.1	$ 1,601.6	$ 0.2
Beginning Balance (in shares) at Dec. 31, 2009		146.4	(5.3)
Net Income	270.7	0	0	0	270.7	0	270.7	0
Other comprehensive income	6.2	0	0	0	0	6.2	6.2	0
Cash dividends	(44.0)	0	0	0	(44.0)	0	(44.0)	0
Stock Purchases (in shares)		0	0
Stock Purchases	(0.1)	0	(0.1)	0	0	0	(0.1)	0
Stock based compensation expense and stock option plan transactions, including related income tax benefits of $15.4 in 2012, $13.3 in 2011 and $8.5 in 2010 (in shares)	1.2	0	1.2
Stock based compensation expense and stock option plan transactions, including related income tax benefits of $15.4 in 2012, $13.3 in 2011 and $8.5 in 2010	35.6	0	8.0	27.6	0	0	35.6	0
Other stock issuances (in shares)		0	0.1
Other stock issuances	0.7	0	0.4	0.3	0	0	0.7	0
Ending Balance at Dec. 31, 2010	1,870.9	146.4	(24.6)	230.8	1,501.8	16.3	1,870.7	0.2
Ending Balance (in shares) at Dec. 31, 2010		146.4	(4.0)
Net Income	309.6	0	0	0	309.6	0	309.6	0
Other comprehensive income	(13.4)	0	0	0	0	(13.4)	(13.4)	0
Cash dividends	(97.4)	0	0	0	(97.4)	0	(97.4)	0
Stock Purchases (in shares)		0	(1.8)
Stock Purchases	(80.2)	0	(80.2)	0	0	0	(80.2)	0
Stock based compensation expense and stock option plan transactions, including related income tax benefits of $15.4 in 2012, $13.3 in 2011 and $8.5 in 2010 (in shares)	1.6	0	1.6
Stock based compensation expense and stock option plan transactions, including related income tax benefits of $15.4 in 2012, $13.3 in 2011 and $8.5 in 2010	50.2	0	9.9	40.3	0	0	50.2	0
Other stock issuances (in shares)		0	0.1
Other stock issuances	1.1	0	0.5	0.6	0	0	1.1	0
Ending Balance at Dec. 31, 2011	2,040.8	146.4	(94.4)	271.7	1,714.0	2.9	2,040.6	0.2
Ending Balance (in shares) at Dec. 31, 2011		146.4	(4.1)
Net Income	349.8	0	0	0	349.8	0	349.8	0
Other comprehensive income	(0.4)	0	0	0	0	(0.4)	(0.4)	0
Cash dividends	(134.5)	0	0	0	(134.5)	0	(134.5)	0
Stock Purchases (in shares)		0	(5.0)
Stock Purchases	(250.4)	0	(250.4)	0	0	0	(250.4)	0
Stock based compensation expense and stock option plan transactions, including related income tax benefits of $15.4 in 2012, $13.3 in 2011 and $8.5 in 2010 (in shares)	1.5	0	1.5
Stock based compensation expense and stock option plan transactions, including related income tax benefits of $15.4 in 2012, $13.3 in 2011 and $8.5 in 2010	54.4	0	8.5	45.9	0	0	54.4	0
Other stock issuances (in shares)		0	0
Other stock issuances	1.4	0	0.2	1.2	0	0	1.4	0
Ending Balance at Dec. 31, 2012	$ 2,061.1	$ 146.4	$ (336.1)	$ 318.8	$ 1,929.3	$ 2.5	$ 2,060.9	$ 0.2
Ending Balance (in shares) at Dec. 31, 2012		146.4	(7.6)