Retirement Plans (Schedule of Net Periodic Benefit Cost) (Details) - Pension Benefits - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 26, 2015	Jun. 27, 2014	Jun. 26, 2015	Jun. 27, 2014
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1.2	$ 1.3	$ 3.6	$ 3.8
Interest cost	4.4	4.9	13.3	14.8
Expected return on plan assets	(5.8)	(6.1)	(17.3)	(18.3)
Amortization of net actuarial loss	2.4	2.2	7.1	6.4
Amortization of prior service (credit) cost	(0.2)	(0.2)	(0.6)	(0.5)
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	3.4	2.6	4.6	2.9
Net periodic benefit cost	$ 5.4	$ 4.7	$ 10.7	$ 9.1