Income Taxes (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 29, 2013	Sep. 30, 2012
Income Tax Disclosure [Abstract]
Deferred tax asset related to litigation charge, estimated recovery period	15 years
Cumulative undistributed earnings of foreign subsidiaries and equity investees	$ 2,800.0
Net change in total valuation allowance	(23.1)	$ 6.3
Tax credit carryforward	32.0
Foreign net operating loss carryforwards	309.5
Gross unrecognized tax benefits	150.4	112.7	$ 88.8	$ 75.3
Unrecognized tax benefits affecting the effective tax rate if recognized	101.7
Interest and penalties expense/(benefit) recognized in income tax expense	0.7	5.9	$ (0.8)
Accrued interest and penalties	11.3	$ 10.6
Amount of reasonably possible unrecognized benefit change	$ 31.2