Pension and Other Postretirement Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 0	$ 0
Interest cost	2	10
Expected return on plan assets	0	(9)
Amortization of Net actuarial loss	1	1
Net periodic cost (credit)	3	2
Other Postretirement Benefits Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	0	0
Amortization of prior service credit	0	0
Net periodic cost (credit)	$ 0	$ 0