Acquisitions and Dispositions - Pro Forma Adjustments Affecting Net Earnings (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Business Combinations [Abstract]
Amortization of purchased intangibles	$ 21.2	$ 22.8	$ 42.6	$ 45.7
Restructuring, impairment and other charges	11.1	17.8	28.3	69.3
Depreciation and amortization of purchased assets, pre-tax	(2.0)	1.1	0.4	2.7
Acquisition-related expenses, pre-tax	(4.7)	0.3	18.6	14.9
Restructuring, impairment and other charges, pre-tax	21.1	5.0	24.1	2.6
Inventory fair value adjustment, pre-tax	3.2	1.1	3.2	3.6
Other pro forma adjustments, pre-tax	0.4	5.7	1.2	(4.5)
Income taxes	$ (9.3)	$ (2.7)	$ (10.2)	$ 0.1