Goodwill and Other Intangible Assets, Net - Schedule of Other Intangible Assets and Related Amortization Periods (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2017
Intangible Assets [Line Items]
Intangible assets, Gross Carrying Amount	$ 14,718.9	$ 15,227.2
Accumulated Amortization	(607.1)	(991.2)
Intangible assets, Net Book value	14,111.8	14,236.0
Trade Names [Member]
Intangible Assets [Line Items]
Indefinite life, Net Book Value	9,935.1	10,210.8
Trade Names [Member]
Intangible Assets [Line Items]
Gross Carrying Amount	286.3	366.9
Accumulated Amortization	(34.2)	(58.5)
Net Book Value	$ 252.1	308.4
Trade Names [Member] | Minimum [Member]
Intangible Assets [Line Items]
Amortization periods	3 years
Trade Names [Member] | Maximum [Member]
Intangible Assets [Line Items]
Amortization periods	30 years
Capitalized Software [Member]
Intangible Assets [Line Items]
Gross Carrying Amount	$ 482.0	558.6
Accumulated Amortization	(252.9)	(349.6)
Net Book Value	$ 229.1	209.0
Capitalized Software [Member] | Minimum [Member]
Intangible Assets [Line Items]
Amortization periods	3 years
Capitalized Software [Member] | Maximum [Member]
Intangible Assets [Line Items]
Amortization periods	12 years
Patents and Intellectual Property [Member]
Intangible Assets [Line Items]
Gross Carrying Amount	$ 227.9	252.1
Accumulated Amortization	(105.0)	(142.8)
Net Book Value	$ 122.9	109.3
Patents and Intellectual Property [Member] | Minimum [Member]
Intangible Assets [Line Items]
Amortization periods	3 years
Patents and Intellectual Property [Member] | Maximum [Member]
Intangible Assets [Line Items]
Amortization periods	14 years
Customer Relationships & Distributor Channels [Member]
Intangible Assets [Line Items]
Gross Carrying Amount	$ 3,761.7	3,703.2
Accumulated Amortization	(204.0)	(377.8)
Net Book Value	$ 3,557.7	3,325.4
Customer Relationships & Distributor Channels [Member] | Minimum [Member]
Intangible Assets [Line Items]
Amortization periods	3 years
Customer Relationships & Distributor Channels [Member] | Maximum [Member]
Intangible Assets [Line Items]
Amortization periods	30 years
Other [Member]
Intangible Assets [Line Items]
Gross Carrying Amount	$ 25.9	135.6
Accumulated Amortization	(11.0)	(62.5)
Net Book Value	$ 14.9	$ 73.1
Other [Member] | Minimum [Member]
Intangible Assets [Line Items]
Amortization periods	3 years
Other [Member] | Maximum [Member]
Intangible Assets [Line Items]
Amortization periods	5 years