XML 103 R89.htm IDEA: XBRL DOCUMENT v3.10.0.1
Pension and Other Benefit Programs - One Percentage Point (ppt) Change on Projected Benefit Obligations (Detail)
$ in Millions
12 Months Ended
Sep. 29, 2018
USD ($)
Retirement Benefits [Abstract]  
Impact of 1 ppt Discount Rate decrease on Benefit Expense $ 241
Impact of 1 ppt Discount Rate increase on Benefit Expense (229)
Impact of 1 ppt Discount Rate decrease on Projected Benefit Obligations 2,680
Impact of 1 ppt Discount Rate increase on Projected Benefit Obligations (2,275)
Impact of 1 ppt Expected Long-Term Rate of Return on Assets Decrease on Benefit Expense 135
Impact of 1 ppt Expected Long-Term Rate of Return on Assets Increase on Benefit Expense (135)
Impact of 1 ppt Healthcare Cost Trend Rate decrease on Net Periodic Postretirement Medical Cost (23)
Impact of 1 ppt Healthcare Cost Trend Rate increase on Net Periodic Postretirement Medical Cost 30
Impact of 1 ppt Healthcare Cost Trend Rate decrease on Projected Benefit Obligations (213)
Impact of 1 ppt Healthcare Cost Trend Rate increase on Projected Benefit Obligations $ 283