Retirement Plans (Schedule Of Net Periodic Benefit Costs) (Details) (USD $) In Millions	12 Months Ended
	Sep. 30, 2011	Oct. 01, 2010	Oct. 02, 2009
Defined Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3.7	$ 2.4	$ 2.0
Interest cost	5.0	4.9	4.9
Settlement gain			(0.7)
Expected return on assets	(4.9)	(4.8)	(5.1)
Amortization of prior service cost	0.1	0.1	0.1
Recognized actuarial loss	2.1	1.7	1.1
Net periodic benefit cost	6.0	4.3	2.3
Net (gain) loss arising during the year	9.6	9.1	12.9
Amortization of prior service cost	(0.1)	(0.1)	(0.1)
Amortization and settlement of net actuarial loss	(2.1)	(1.7)	(0.9)
Total recognized in other comprehensive (income) loss	7.4	7.3	11.9
Total recognized in net periodic benefit cost and other comprehensive loss	13.4	11.6	14.2
Post-Retirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	0.2	0.3	0.4
Amortization of transition obligation		0.1	0.4
Recognized actuarial loss	0.1	0.1
Net periodic benefit cost	0.3	0.5	0.8
Net (gain) loss arising during the year	0.3	(0.1)	0.8
Amortization of transition obligation		(0.1)	(0.4)
Amortization and settlement of net actuarial loss	(0.1)	(0.1)
Total recognized in other comprehensive (income) loss	0.2	(0.3)	0.4
Total recognized in net periodic benefit cost and other comprehensive loss	$ 0.5	$ 0.2	$ 1.2