Acquisitions - Additional Information (Detail) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2016 USD ($)	Oct. 03, 2015 USD ($)	Oct. 01, 2016 USD ($) Entity	Oct. 03, 2015 USD ($)	Oct. 12, 2016 USD ($)	Jan. 02, 2016 USD ($)
Business Acquisition [Line Items]
Document Period End Date			Oct. 01, 2016
Goodwill	$ 7,130.8		$ 7,130.8			$ 7,084.3
Purchase price for acquisitions	38.3	$ 17.1	59.3	$ 17.5
Inventories, net	1,720.3		$ 1,720.3			1,526.4
Number of Businesses Acquired | Entity			5
Industrial Segment
Business Acquisition [Line Items]
Goodwill	$ 2,358.9		$ 2,358.9			$ 2,317.2
Subsequent Event [Member] | Newell Acquisition [Member]
Business Acquisition [Line Items]
Business Combination, Consideration To Be Transferred					$ 1,950.0