Goodwill and Other Intangible Assets - Details of Intangible Assets Other Than Goodwill (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 3,102.8	$ 3,132.3
Accumulated Amortization	1,750.8	1,496.2
Net Carrying Amount	1,352.0	1,636.1
Customer Base [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,911.2	1,930.3
Accumulated Amortization	1,103.5	935.2
Net Carrying Amount	807.7	995.1
Trade Names and Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	608.4	609.7
Accumulated Amortization	249.3	215.3
Net Carrying Amount	359.1	394.4
Patents and Technologies [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	582.9	592.0
Accumulated Amortization	397.7	345.4
Net Carrying Amount	185.2	246.6
Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	0.3	0.3
Accumulated Amortization	$ 0.3	$ 0.3