Summary of Total Assets by Segment (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 29, 2018	Dec. 30, 2017
Segment Reporting Information [Line Items]
Document Period End Date	Sep. 29, 2018
Assets	$ (20,447.7)	$ (19,097.7)
Segment, Continuing Operations
Segment Reporting Information [Line Items]
Assets	(21,092.9)	(19,637.7)
Segment, Continuing Operations | Tools & Storage [Member]
Segment Reporting Information [Line Items]
Assets	(13,702.4)	(12,817.5)
Segment, Continuing Operations | Securities Industry
Segment Reporting Information [Line Items]
Assets	(3,477.5)	(3,406.9)
Segment, Continuing Operations | Industrial Segment
Segment Reporting Information [Line Items]
Assets	(3,913.0)	(3,413.3)
Segment, Continuing Operations | Corporate assets
Segment Reporting Information [Line Items]
Assets	$ (645.2)	$ (540.0)