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, 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	394.4	$ 0.0	$ 0.0	0.0	394.4	0.0	394.4	0.0
Other comprehensive income (loss)	(2.3)	0.0	0.0	0.0	0.0	(2.3)	(2.3)	0.0
Cash dividends	(155.2)	0.0	0.0	0.0	(155.2)	0.0	(155.2)	0.0
Stock purchases	(50.1)	$ 0.0	$ (50.1)	0.0	0.0	0.0	(50.1)	0.0
Stock purchases (in shares)		0.0	(0.9)
Stock based compensation expense and stock option plan transactions, including related income tax benefits	52.2	$ 0.0	$ 18.1	34.1	0.0	0.0	52.2	0.0
Stock based compensation expense and stock option plan transactions, including related income tax benefits (in shares)		0.0	1.0
Other stock issuances	(0.1)	$ 0.0	$ 0.0	0.0	0.0	0.0	0.0	(0.1)
Other stock issuances (in shares)		0.0	0.0
Ending Balance at Dec. 31, 2013	2,300.0	$ 146.4	$ (368.1)	352.9	2,168.5	0.2	2,299.9	0.1
Ending Balance (in shares) at Dec. 31, 2013		146.4	(7.5)
Net Income	413.9	$ 0.0	$ 0.0	0.0	413.9	0.0	413.9	0.0
Other comprehensive income (loss)	(34.9)	0.0	0.0	0.0	0.0	(34.9)	(34.9)	0.0
Cash dividends	(167.5)	0.0	0.0	0.0	(167.5)	0.0	(167.5)	0.0
Stock purchases	(478.8)	$ 0.0	$ (478.8)	0.0	0.0	0.0	(478.8)	0.0
Stock purchases (in shares)		0.0	(6.9)
Stock based compensation expense and stock option plan transactions, including related income tax benefits	67.6	$ 0.0	$ 56.3	11.3	0.0	0.0	67.6	0.0
Stock based compensation expense and stock option plan transactions, including related income tax benefits (in shares)		0.0	1.3
Other stock issuances	1.6	$ 0.0	$ 1.1	0.6	0.0	0.0	1.7	(0.1)
Other stock issuances (in shares)		0.0	0.0
Ending Balance at Dec. 31, 2014	2,101.9	$ 146.4	$ (789.5)	364.8	2,414.9	(34.7)	2,101.9	0.0
Ending Balance (in shares) at Dec. 31, 2014		146.4	(13.1)
Net Income	410.4	$ 0.0	$ 0.0	0.0	410.4	0.0	410.4	0.0
Other comprehensive income (loss)	(11.2)	0.0	0.0	0.0	0.0	(11.2)	(11.2)	0.0
Cash dividends	(175.3)	0.0	0.0	0.0	(175.3)	0.0	(175.3)	0.0
Stock purchases	$ (363.1)	$ 0.0	$ (363.1)	0.0	0.0	0.0	(363.1)	0.0
Stock purchases (in shares)	(4.4)	0.0	(4.4)
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)		0.0	0.1
Stock based compensation expense and stock option plan transactions, including related income tax benefits	60.5	$ 0.0	$ 44.8	15.7	0.0	0.0	60.5	0.0
Stock based compensation expense and stock option plan transactions, including related income tax benefits (in shares)		0.0	1.0
Ending Balance at Dec. 31, 2015	$ 2,023.2	$ 146.4	$ (1,103.7)	$ 376.4	$ 2,650.0	$ (45.9)	$ 2,023.2	$ 0.0
Ending Balance (in shares) at Dec. 31, 2015		146.4	(16.4)