Quarterly Financial Data - Additional Information (Detail) - Tradenames - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Quarterly Financial Information [Line Items]
Pre-tax defined benefit plan actuarial losses	$ (0.3)	$ (2.8)	$ (12.0)	$ (1.1)	$ (0.6)	$ (2.5)	$ (13.7)
After-tax defined benefit plan actuarial losses	$ (0.2)	$ (1.8)	$ (7.6)	$ (0.7)	$ (0.4)
Actuarial loss per diluted share	$ 0.00	$ 0.01	$ 0.04	$ 0.01	$ 0.00

Defined Benefit Plan, Actuarial Gain (Loss) Per Share Diluted

No definition available.

Name:	fbhs_DefinedBenefitPlanActuarialGainLossPerShareDiluted
Namespace Prefix:	fbhs_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration