Segment Information - Summary of Net Sales by Product Category (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenue from External Customer [Line Items]
Net Sales	$ 1,074.3	$ 1,025.5	$ 3,382.7	$ 3,291.2
Knees [Member]
Revenue from External Customer [Line Items]
Net Sales	434.5	411.6	1,386.5	1,350.8
Hips [Member]
Revenue from External Customer [Line Items]
Net Sales	308.3	308.5	977.5	993.0
Extremities [Member]
Revenue from External Customer [Line Items]
Net Sales	45.5	39.7	141.9	127.0
Reconstructive Implants [Member]
Revenue from External Customer [Line Items]
Net Sales	788.3	759.8	2,505.9	2,470.8
Dental [Member]
Revenue from External Customer [Line Items]
Net Sales	55.1	54.7	176.2	176.4
Trauma [Member]
Revenue from External Customer [Line Items]
Net Sales	78.5	74.5	234.6	223.9
Spine [Member]
Revenue from External Customer [Line Items]
Net Sales	48.0	49.8	149.9	155.4
Surgical and other [Member]
Revenue from External Customer [Line Items]
Net Sales	$ 104.4	$ 86.7	$ 316.1	$ 264.7