Employee Benefit Plans (Schedule Of Projected Benefit Obligations Or Accumulated Benefit Obligations In Excess Of Plan Assets) (Details) - Pension Plan - USD ($) $ in Thousands	Sep. 29, 2018	Sep. 30, 2017
Defined Benefit Plan Disclosure
Projected benefit obligation	$ 234,402	$ 1,047,605
Accumulated benefit obligation	219,830	969,161
Fair value of plan assets	$ 78,265	$ 793,167