Pension and Other Postretirement Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014
Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	$ 5	$ 2	$ 13	$ 5
Interest Cost	21	2	63	6
Expected Return on Plan Assets	(25)	(1)	(75)	(3)
Amortization of net actuarial loss	1	1	4	3
Settlement loss	0	0	8	0
Net Periodic Cost	2	4	13	11
Other Postretirement Benefit Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	2	1	4	2
Interest Cost	2	0	5	2
Amortization of net actuarial loss	6	(6)	6	(6)
Amortization of Prior Service Cost (Credit)	0	(1)	0	(1)
Net Periodic Cost	$ 10	$ (6)	$ 15	$ (3)