Equity Stock Repurchase Program (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Sep. 25, 2015	Sep. 26, 2014	Jan. 23, 2015
Class of Stock [Line Items]
Stock Repurchase Program, Authorized Amount			$ 300.0
Repurchase of ordinary shares, value	$ (92.2)	$ (17.5)
2015 Share Repurchase Program [Member]
Class of Stock [Line Items]
Stock Repurchase Program, Authorized Amount	$ 300.0
Repurchase of ordinary shares, shares	823,592
Repurchase of ordinary shares, value	$ 75.0
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 225.0