Revenue - Schedule of Net Sales by Product Category (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	$ 1,929.3	$ 1,892.4	$ 4,939.2	$ 5,856.5
Knees [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	648.7	651.9	1,652.7	2,049.5
Hips [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	484.1	459.2	1,246.4	1,421.1
S.E.T [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	359.9	348.5	946.1	1,062.3
Dental, Spine & CMFT [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	295.5	275.5	729.7	855.2
Other [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	$ 141.1	$ 157.3	$ 364.3	$ 468.4