Revenue Recognition - Schedule of Net Sales by Product Category (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	$ 2,125.7	$ 1,892.4	$ 1,988.6	$ 1,975.5	$ 2,071.0	$ 1,836.7	$ 2,007.6	$ 2,017.6	$ 7,982.2	$ 7,932.9	$ 7,803.3
Knees [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales									2,810.1	2,773.7	2,734.0
Hips [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales									1,935.1	1,921.4	1,871.8
S.E.T [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales									1,795.7	1,751.8	1,701.8
Dental [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales									414.0	411.2	418.6
Spine and CMF [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales									747.3	763.9	757.9
Other [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales									$ 280.0	$ 310.9	$ 319.2