Retirement Plans (Schedule Of Assumptions Used To Determine Net Periodic Benefit Cost And To Compute Expected Long-Term Return On Assets) (Details)	12 Months Ended
	Sep. 30, 2011	Oct. 01, 2010	Oct. 02, 2009
Defined Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rates	3.45%	4.17%	4.73%
Rates of compensation increase	2.44%	2.99%	3.29%
Expected long-term return on assets	4.13%	4.87%	5.42%
Post-Retirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Discount rates	4.40%	5.30%	6.70%