Biomet Merger - Changes in Carrying Amount of Goodwill (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 10,307.2
Accumulated impairment loss, Beginning Balance	(373.0)
Goodwill, net of accumulated impairment loss, Beginning Balance	9,934.2
Biomet purchase accounting adjustments	143.3
Currency translation	65.4
Goodwill, Ending Balance	10,515.9
Accumulated impairment loss, Ending Balance	(373.0)
Goodwill, net of accumulated impairment loss, Ending Balance	10,142.9
Americas [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	7,328.0
Goodwill, net of accumulated impairment loss, Beginning Balance	7,328.0
Biomet purchase accounting adjustments	100.7
Currency translation	35.6
Goodwill, Ending Balance	7,464.3
Goodwill, net of accumulated impairment loss, Ending Balance	7,464.3
EMEA [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,291.0
Goodwill, net of accumulated impairment loss, Beginning Balance	1,291.0
Biomet purchase accounting adjustments	11.1
Currency translation	18.4
Goodwill, Ending Balance	1,320.5
Goodwill, net of accumulated impairment loss, Ending Balance	1,320.5
Asia Pacific [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	548.9
Goodwill, net of accumulated impairment loss, Beginning Balance	548.9
Biomet purchase accounting adjustments	8.4
Currency translation	8.3
Goodwill, Ending Balance	565.6
Goodwill, net of accumulated impairment loss, Ending Balance	565.6
Product Category Operating Segments [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,139.3
Accumulated impairment loss, Beginning Balance	(373.0)
Goodwill, net of accumulated impairment loss, Beginning Balance	766.3
Biomet purchase accounting adjustments	23.1
Currency translation	3.1
Goodwill, Ending Balance	1,165.5
Accumulated impairment loss, Ending Balance	(373.0)
Goodwill, net of accumulated impairment loss, Ending Balance	$ 792.5