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Pensions And Other Postretirement Benefits (Health Care Cost Trend Rates) (Details)
$ in Millions
12 Months Ended
Oct. 03, 2015
USD ($)
Compensation and Retirement Disclosure [Abstract]  
One Percentage Point Increase, Effect on postretirement benefit obligation $ 8
One Percentage Point Decrease, Effect on postretirement benefit obligation 7
One Percentage Point Increase, Effect on total service and interest components 0
One Percentage Point Decrease, Effect on total service and interest components $ 0