Changes in Carrying Amount of Goodwill by Segment (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2018 USD ($)
Goodwill [Line Items]
Goodwill, Acquired During Period	$ 288.7
Goodwill Beginning Balance	8,776.1
Foreign currency translation	(117.1)
Goodwill Ending Balance	8,947.7
Tools & Storage [Member]
Goodwill [Line Items]
Goodwill, Acquired During Period	40.8
Goodwill Beginning Balance	5,189.7
Foreign currency translation	(61.4)
Goodwill Ending Balance	5,169.1
Industrial Segment
Goodwill [Line Items]
Goodwill, Acquired During Period	203.9
Goodwill Beginning Balance	2,132.0
Foreign currency translation	(51.9)
Goodwill Ending Balance	2,124.1
Securities Industry
Goodwill [Line Items]
Goodwill, Acquired During Period	44.0
Goodwill Beginning Balance	1,454.4
Foreign currency translation	(3.8)
Goodwill Ending Balance	$ 1,654.5