Business Combinations - Changes in Carrying Amount of Goodwill (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2017 USD ($)
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 11,016.9
Accumulated impairment loss, Beginning Balance	(373.0)
Goodwill, net of accumulated impairment loss, Beginning Balance	10,643.9
Purchase accounting adjustments	4.1
Currency translation	61.1
Goodwill, Ending Balance	11,058.1
Accumulated impairment loss, Ending Balance	(373.0)
Goodwill, net of accumulated impairment loss, Ending Balance	10,685.1
LDR Holding Corporation [Member]
Goodwill [Line Items]
Goodwill, net of accumulated impairment loss, Beginning Balance	482.4
Purchase accounting adjustments	(24.0)
Goodwill, net of accumulated impairment loss, Ending Balance	458.4
Americas [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	7,634.5
Goodwill, net of accumulated impairment loss, Beginning Balance	7,634.5
Purchase accounting adjustments	8.4
Currency translation	18.1
Goodwill, Ending Balance	7,661.0
Goodwill, net of accumulated impairment loss, Ending Balance	7,661.0
EMEA [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,263.7
Goodwill, net of accumulated impairment loss, Beginning Balance	1,263.7
Purchase accounting adjustments	(4.3)
Currency translation	31.1
Goodwill, Ending Balance	1,290.5
Goodwill, net of accumulated impairment loss, Ending Balance	1,290.5
Asia Pacific [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	487.3
Goodwill, net of accumulated impairment loss, Beginning Balance	487.3
Currency translation	8.6
Goodwill, Ending Balance	495.9
Goodwill, net of accumulated impairment loss, Ending Balance	495.9
Product Category Operating Segments [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,631.4
Accumulated impairment loss, Beginning Balance	(373.0)
Goodwill, net of accumulated impairment loss, Beginning Balance	1,258.4
Currency translation	3.3
Goodwill, Ending Balance	1,610.7
Accumulated impairment loss, Ending Balance	(373.0)
Goodwill, net of accumulated impairment loss, Ending Balance	1,237.7
Product Category Operating Segments [Member] | LDR Holding Corporation [Member]
Goodwill [Line Items]
Purchase accounting adjustments	$ (24.0)