Revenue Recognition - Schedule of Net Sales by Product Category (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	$ 1,988.6	$ 2,007.6	$ 3,964.1	$ 4,025.2
Knees [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	703.5	703.0	1,397.6	1,416.3
Hips [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	479.4	486.9	963.6	978.9
S.E.T [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	444.4	433.8	884.3	876.1
Dental [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	106.5	106.9	211.0	214.5
Spine and CMF [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	185.9	198.2	368.7	381.3
Other [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	$ 68.9	$ 78.8	$ 138.9	$ 158.1