Business Combinations - Additional Information (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		1 Months Ended	3 Months Ended								12 Months Ended
	Jun. 24, 2015	Mar. 31, 2015	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Business acquisition liability incurred			$ 2,740.0								$ 2,740.0
Gain on divestiture of assets											19.0
Consideration paid, cash												$ 54.3	$ 74.2
Consideration paid, common stock value											3,722.7
Biomet merger consideration compensation expense											90.4	0.0	0.0
Net assets acquired			11,939.9								11,939.9
Operating income (loss)											467.3	1,037.3	1,068.6
Net Sales			1,933.6	$ 1,762.2	$ 1,167.6	$ 1,134.4	$ 1,222.9	$ 1,106.0	$ 1,182.9	$ 1,161.5	5,997.8	4,673.3	$ 4,623.4
Merger retention plans, expenses recognized											$ 73.0
Maximum expected period to complete research and development projects											2 years
Trademarks and Trade Names [Member]
Business Acquisition [Line Items]
Weighted-average amortization period	15 years
Technology [Member]
Business Acquisition [Line Items]
Weighted-average amortization period	15 years
Customer Relationships [Member]
Business Acquisition [Line Items]
Weighted-average amortization period	18 years
LVB Acquisition Inc [Member]
Business Acquisition [Line Items]
Total consideration	$ 12,030.3
Consideration paid, cash	$ 8,307.6
Consideration paid, shares	32.7
Consideration paid, common stock value	$ 3,722.7
Consideration paid, common stock price	$ 113.83
Biomet merger consideration compensation expense											$ 90.4
Net assets acquired	$ 11,939.9
Merger retention plans, expenses recognized											73.0
Musculoskeletal Industry [Member] | LVB Acquisition Inc [Member]
Business Acquisition [Line Items]
Net worth			50,000.0								50,000.0
Biomet [Member]
Business Acquisition [Line Items]
Operating income (loss)											(295.8)
Net Sales											1,602.0
Operating Income (Loss) [Member] | LVB Acquisition Inc [Member]
Business Acquisition [Line Items]
Biomet merger consideration compensation expense											90.4
Merger retention plans, expenses recognized											73.0
Operating Expenses [Member] | LVB Acquisition Inc [Member]
Business Acquisition [Line Items]
Biomet merger consideration compensation expense												90.4
Merger retention plans, expenses recognized												73.0
Merger transaction costs							$ 17.7					$ 17.7
Senior Notes [Member] | LVB Acquisition Inc [Member]
Business Acquisition [Line Items]
Business acquisition liability incurred			$ 2,740.0								$ 2,740.0
Senior Unsecured Term Loan [Member]
Business Acquisition [Line Items]
Proceeds from senior unsecured notes		$ 3,000.0
Senior Unsecured Notes [Member]
Business Acquisition [Line Items]
Proceeds from senior unsecured notes		$ 7,650.0