Accumulated Other Comprehensive Income (Schedule of Reclassifications out of Accumulated Other Comprehensive Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			6 Months Ended
	Mar. 27, 2015		Mar. 28, 2014	Mar. 27, 2015		Mar. 28, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassifications for the period				$ 2.4		$ (0.1)
Other Comprehensive Income (Loss), Net of Tax				(57.8)		(2.1)
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of unrealized gain on derivatives, tax	(0.1)		0	(0.1)		(0.1)
Amortization of unrealized gain on derivatives, net of tax	0.1		0.1	0.2		0.2
Amortization of pension and post-retirement plans, net actuarial loss	2.4	[1]	2.1	4.7	[1]	4.2
Amortization of pension and post-retirement plans, prior service cost	(1.2)	[1]	(2.4)	(2.3)	[1]	(4.9)
Amortization of pension and post-retirement plans, plan settlements	1.2		0.3	1.2		0.3
Amortization of pension and post-retirement plans, before tax	2.4		0	3.6		(0.4)
Amortization of pension and post-retirement plans, tax	(0.9)		0	(1.4)		0.1
Amortization of pension and post-retirement plans, net of tax	1.5		0	2.2		(0.3)
Total reclassifications for the period	1.6		0.1	2.4		(0.1)
Reclassification out of Accumulated Other Comprehensive Income | Interest Expense
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of unrealized gain on derivatives, before tax	$ 0.2		$ 0.1	$ 0.3		$ 0.3

[1] These accumulated other comprehensive income components are included in the computation of net periodic benefit cost. See Note 12 for additional details.