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. 27, 2025	Sep. 28, 2024	Sep. 30, 2023
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	$ 2	$ 2	$ 2
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	0	4	5
Defined Benefit Plan, Amortization of Gain (Loss)	1	0	(5)
Net Periodic Benefit Cost (Credit), Excluding Service Cost	4	7	3
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	(2)	(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	(1)	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	7	9	8
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	0	0	0
Amortization of prior service credit	0	1	1
Defined Benefit Plan, Amortization of Gain (Loss)	0	(2)	(3)
Net Periodic Benefit Cost (Credit), Excluding Service Cost	$ 7	$ 8	$ 6