Segment Information - Summary of Net Sales by Product Category (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenue from External Customer [Line Items]
Net Sales	$ 1,167.6	$ 1,182.9	$ 2,302.0	$ 2,344.4
Zimmer [Member]
Revenue from External Customer [Line Items]
Net Sales	1,107.7	1,182.9	2,242.1	2,344.4
Zimmer [Member] | Knees [Member]
Revenue from External Customer [Line Items]
Net Sales	475.8	497.9	963.1	985.8
Zimmer [Member] | Hips [Member]
Revenue from External Customer [Line Items]
Net Sales	307.4	341.0	619.6	672.7
Zimmer [Member] | Extremities [Member]
Revenue from External Customer [Line Items]
Net Sales	48.5	51.5	100.7	103.6
Zimmer [Member] | Reconstructive [Member]
Revenue from External Customer [Line Items]
Net Sales	831.7	890.4	1,683.4	1,762.1
Zimmer [Member] | Dental [Member]
Revenue from External Customer [Line Items]
Net Sales	56.8	61.1	112.6	122.1
Zimmer [Member] | Trauma [Member]
Revenue from External Customer [Line Items]
Net Sales	72.6	78.8	152.0	158.5
Zimmer [Member] | Spine [Member]
Revenue from External Customer [Line Items]
Net Sales	52.2	52.2	101.7	100.5
Zimmer [Member] | Surgical and other [Member]
Revenue from External Customer [Line Items]
Net Sales	94.4	$ 100.4	192.4	$ 201.2
Biomet [Member]
Revenue from External Customer [Line Items]
Net Sales	$ 59.9		$ 59.9