Financial Instruments and Fair Value Measurements (Summary of Significant Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) (Recurring, USD $) In Millions, unless otherwise specified	Jun. 28, 2013	Sep. 28, 2012
Total
Assets:
Debt and equity securities held in rabbi trusts	$ 35.6	$ 25.2
Foreign exchange forward and option contracts	1.7
Total assets at fair value	37.3
Liabilities:
Deferred compensation liabilities	12.7	9.3
Contingent consideration	6.9
Foreign exchange forward and option contracts	3.8
Total liabilities at fair value	23.4
Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets:
Debt and equity securities held in rabbi trusts	22.2	13.7
Foreign exchange forward and option contracts	1.7
Total assets at fair value	23.9
Liabilities:
Deferred compensation liabilities	0	0
Contingent consideration	0
Foreign exchange forward and option contracts	3.8
Total liabilities at fair value	3.8
Significant Other Observable Inputs (Level 2)
Assets:
Debt and equity securities held in rabbi trusts	13.4	11.5
Foreign exchange forward and option contracts	0
Total assets at fair value	13.4
Liabilities:
Deferred compensation liabilities	12.7	9.3
Contingent consideration	0
Foreign exchange forward and option contracts	0
Total liabilities at fair value	12.7
Significant Unobservable Inputs (Level 3)
Assets:
Debt and equity securities held in rabbi trusts	0	0
Foreign exchange forward and option contracts	0
Total assets at fair value	0
Liabilities:
Deferred compensation liabilities	0	0
Contingent consideration	6.9
Foreign exchange forward and option contracts	0
Total liabilities at fair value	$ 6.9