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Pensions And Other Postretirement Benefits (Components Of Net Periodic Benefit Cost For Pension And Postretirement Benefit Plans Recognized In The Consolidated Statements Of Income) (Details) - USD ($)
$ in Millions
 12 Months Ended
Sep. 28, 2024
Sep. 30, 2023
Oct. 01, 2022
Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Service Cost $ 2 $ 2 $ 1
Defined Benefit Plan, Interest Cost 1 1 1
Defined Benefit Plan, Expected Return (Loss) on Plan Assets 0 0 0
Amortization of prior service credit 4 5 4
Defined Benefit Plan, Amortization of Gain (Loss) 0 (5) (8)
Net Periodic Benefit Cost (Credit), Excluding Service Cost 7 3 (2)
Defined Benefit Plan, Funded Plan | Qualified Plan | Pension Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Service Cost 0 0 0
Defined Benefit Plan, Interest Cost 1 1 1
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (1) (1) (1)
Amortization of prior service credit 0 0 0
Defined Benefit Plan, Amortization of Gain (Loss) 0 0 0
Net Periodic Benefit Cost (Credit), Excluding Service Cost 0 0 0
Defined Benefit Plan, Unfunded Plan | Nonqualified Plan | Pension Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Service Cost 0 0 0
Defined Benefit Plan, Interest Cost 9 8 6
Defined Benefit Plan, Expected Return (Loss) on Plan Assets 0 0 0
Amortization of prior service credit 1 1 1
Defined Benefit Plan, Amortization of Gain (Loss) (2) (3) 3
Net Periodic Benefit Cost (Credit), Excluding Service Cost $ 8 $ 6 $ 10