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Pensions And Other Postretirement Benefits (Plans With Accumulated Benefit Obligations In Excess Of Plan Assets) (Details) - Pension Plan [Member] - USD ($) $ in Millions	Sep. 28, 2019	Sep. 29, 2018
Funded Plan [Member] | Qualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 381	$ 49
Accumulated benefit obligation	381	49
Fair value of plan assets	364	45
Unfunded Plan [Member] | Nonqualified Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	239	220
Accumulated benefit obligation	239	219
Fair value of plan assets	$ 0	$ 0

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Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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