Revenue - Schedule of Net Sales by Product Category (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	$ 2,026.9	$ 1,226.1	$ 3,874.3	$ 3,009.9
Knees [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	665.6	375.0	1,279.9	1,003.7
Hips [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	474.6	329.7	921.6	762.3
S.E.T [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	462.1	292.7	879.7	673.6
Dental & Spine [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	263.5	152.3	509.5	371.8
Other [Member]
Entity Wide Information Revenue From External Customer [Line Items]
Net Sales	$ 161.1	$ 76.4	$ 283.6	$ 198.5