Summary of Total Assets by Segment (Detail) (USD $) In Millions, unless otherwise specified	Jun. 28, 2014	Dec. 28, 2013
Segment Reporting Information [Line Items]
Assets	$ (16,958.8)	$ (16,535.1)
Segment, Continuing Operations
Segment Reporting Information [Line Items]
Assets	(17,440.3)	(17,155.5)
Segment, Continuing Operations | Construction and Do It Yourself
Segment Reporting Information [Line Items]
Assets	(7,550.6)	(7,357.9)
Segment, Continuing Operations | Securities Industry
Segment Reporting Information [Line Items]
Assets	(5,441.7)	(5,302.0)
Segment, Continuing Operations | Industrial Segment
Segment Reporting Information [Line Items]
Assets	(4,448.0)	(4,495.6)
Segment, Continuing Operations | Corporate assets
Segment Reporting Information [Line Items]
Assets	486.5	(630.5)
Segment, Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Assets	$ (5.0)	$ (10.1)