Basis of Presentation - Additional Information (Detail) (USD $) Share data in Millions, except Per Share data, unless otherwise specified				9 Months Ended	0 Months Ended
	May 31, 2014 Scenario, Forecast [Member]	Apr. 24, 2014 Senior unsecured term loan [Member] Scenario, Forecast [Member]	Apr. 24, 2014 Senior unsecured note [Member] Scenario, Forecast [Member]	Sep. 30, 2014 Bridge Credit Agreement [Member]	Apr. 24, 2014 LVB Acquisition Inc [Member]	Apr. 24, 2014 LVB Acquisition Inc [Member] Scenario, Forecast [Member]	Apr. 24, 2014 Musculo Skeletal Industry [Member]
Consolidation And Basis Of Presentation [Line Items]
Date of merger agreement					Apr. 24, 2014
Total consideration						$ 13,350,000,000
Consideration paid, cash						10,350,000,000
Consideration paid, shares						32.7
Consideration paid, common stock value						3,000,000,000
Consideration paid, common stock price						$ 91.73
Net worth							45,000,000,000
Senior unsecured term loan and notes		3,000,000,000	7,660,000,000
Bridge loan	$ 7,660,000,000
Debt instrument term				364 days