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
	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Funded Qualified Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 10	$ 1	$ 0
Interest cost	78	10	4
Expected return on plan assets	(102)	(13)	(5)
Amortization of prior service cost	0	0	0
Recognized actuarial (gain) loss, net	2	2	4
Recognized settlement (gain) loss	8	0	0
Net periodic benefit (credit) cost	(4)	0	3
Unfunded Non-Qualified Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	8	7	5
Interest cost	8	5	3
Expected return on plan assets	0	0	0
Amortization of prior service cost	0	0	1
Recognized actuarial (gain) loss, net	4	2	3
Recognized settlement (gain) loss	0	0	0
Net periodic benefit (credit) cost	20	14	12
Other Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	5	2	2
Interest cost	7	3	2
Expected return on plan assets	0	0	0
Amortization of prior service cost	(1)	0	(1)
Recognized actuarial (gain) loss, net	9	(8)	7
Recognized settlement (gain) loss	(2)	0	0
Net periodic benefit (credit) cost	$ 18	$ (3)	$ 10