Financial Instruments and Fair Value Measurements (Schedule of Fair Value of Assets and Liabilities Measured on a Recurring Basis) (Details) (Recurring, USD $) In Millions, unless otherwise specified	Jun. 27, 2014	Sep. 27, 2013
Total
Assets:
Debt and equity securities held in rabbi trust	$ 35.9	$ 35.3
Foreign exchange forward and option contracts	0	0.9
Total assets at fair value	35.9	36.2
Liabilities:
Deferred compensation liabilities	14.6	13.5
Contingent consideration	7.0	6.9
Foreign exchange forward and option contracts	0.2	1.4
Total liabilities at fair value	21.8	21.8
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Debt and equity securities held in rabbi trust	23.6	22.6
Foreign exchange forward and option contracts	0	0.9
Total assets at fair value	23.6	23.5
Liabilities:
Deferred compensation liabilities	0	0
Contingent consideration	0	0
Foreign exchange forward and option contracts	0.2	1.4
Total liabilities at fair value	0.2	1.4
Significant Other Observable Inputs (Level 2)
Assets:
Debt and equity securities held in rabbi trust	12.3	12.7
Foreign exchange forward and option contracts	0	0
Total assets at fair value	12.3	12.7
Liabilities:
Deferred compensation liabilities	14.6	13.5
Contingent consideration	0	0
Foreign exchange forward and option contracts	0	0
Total liabilities at fair value	14.6	13.5
Significant Unobservable Inputs (Level 3)
Assets:
Debt and equity securities held in rabbi trust	0	0
Foreign exchange forward and option contracts	0	0
Total assets at fair value	0	0
Liabilities:
Deferred compensation liabilities	0	0
Contingent consideration	7.0	6.9
Foreign exchange forward and option contracts	0	0
Total liabilities at fair value	$ 7.0	$ 6.9