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Pensions And Other Postretirement Benefits (Plans With Accumulated Benefit Obligations In Excess Of Plan Assets) (Details) - USD ($)
$ in Millions
Oct. 03, 2015
Sep. 27, 2014
Funded Qualified Pension Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Projected benefit obligation $ 1,781 $ 1,829
Accumulated benefit obligation 1,781 1,829
Fair value of plan assets 1,572 1,627
Unfunded Non-Qualified Pension Plan [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Projected benefit obligation 201 182
Accumulated benefit obligation 193 172
Fair value of plan assets $ 0 $ 3