Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 10,307.2	$ 2,887.2
Accumulated impairment losses, Beginning Balance	(373.0)	(373.0)
Goodwill, net of accumulated impairment losses, Beginning Balance	9,934.2	2,514.2
Biomet Merger	340.0	7,573.9
Currency translation	(67.0)	(153.9)
Goodwill, Ending Balance	11,016.9	10,307.2
Accumulated impairment losses, Ending Balance	(373.0)	(373.0)
Goodwill, Ending Balance	10,643.9	9,934.2
Biomet [Member]
Goodwill [Line Items]
Purchase accounting adjustments	(45.7)
Goodwill, Ending Balance	7,433.2
LDR Holding Corporation [Member]
Goodwill [Line Items]
Biomet Merger	482.4
Americas [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	7,328.0	931.1
Goodwill, net of accumulated impairment losses, Beginning Balance	7,328.0	931.1
Biomet Merger	284.8	6,445.2
Currency translation	(10.2)	(48.3)
Goodwill, Ending Balance	7,634.5	7,328.0
Goodwill, Ending Balance	7,634.5	7,328.0
Americas [Member] | Biomet [Member]
Goodwill [Line Items]
Purchase accounting adjustments	31.9
EMEA [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,291.0	1,157.3
Goodwill, net of accumulated impairment losses, Beginning Balance	1,291.0	1,157.3
Biomet Merger	34.3	225.6
Currency translation	(53.6)	(91.9)
Goodwill, Ending Balance	1,263.7	1,291.0
Goodwill, Ending Balance	1,263.7	1,291.0
EMEA [Member] | Biomet [Member]
Goodwill [Line Items]
Purchase accounting adjustments	(8.0)
Asia Pacific [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	548.9	148.2
Goodwill, net of accumulated impairment losses, Beginning Balance	548.9	148.2
Biomet Merger		408.1
Currency translation	(0.3)	(7.4)
Goodwill, Ending Balance	487.3	548.9
Goodwill, Ending Balance	487.3	548.9
Asia Pacific [Member] | Biomet [Member]
Goodwill [Line Items]
Purchase accounting adjustments	(61.3)
Immaterial Product Category Operating Segments [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,139.3	650.6
Accumulated impairment losses, Beginning Balance	(373.0)	(373.0)
Goodwill, net of accumulated impairment losses, Beginning Balance	766.3	277.6
Biomet Merger	20.9	495.0
Currency translation	(2.9)	(6.3)
Goodwill, Ending Balance	1,631.4	1,139.3
Accumulated impairment losses, Ending Balance	(373.0)	(373.0)
Goodwill, Ending Balance	1,258.4	$ 766.3
Immaterial Product Category Operating Segments [Member] | Biomet [Member]
Goodwill [Line Items]
Purchase accounting adjustments	(8.3)
Immaterial Product Category Operating Segments [Member] | LDR Holding Corporation [Member]
Goodwill [Line Items]
Biomet Merger	$ 482.4