Pensions And Other Postretirement Benefits (Reconciliation Of Changes In Plans' Benefit Obligations, Assets And Funded Status) (Details) (USD $) In Millions	12 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 03, 2009
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	$ 7	$ 4	$ 2
Ending balance	74
Non-Qualified Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at beginning of year	42	38
Service cost	3	3	4
Interest cost	2	2	2
Plan participants' contributions	0	0
Actuarial loss	17	0
Benefits paid	(2)	(1)
Benefit obligation at end of year	62	42	38
Beginning balance	0	0
Actual return on plan assets	0	0
Employer contributions	2	1
Ending balance	0	0	0
Funded status	(62)	(42)
Qualified Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at beginning of year	97	89
Service cost	0	0	0
Interest cost	5	5	6
Plan participants' contributions	0	0
Actuarial loss	3	9
Benefits paid	(6)	(6)
Benefit obligation at end of year	99	97	89
Beginning balance	74	68
Actual return on plan assets	1	9
Employer contributions	5	3
Ending balance	74	74	68
Funded status	(25)	(23)
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation at beginning of year	45	46
Service cost	0	1	0
Interest cost	2	2	3
Plan participants' contributions	1	1
Actuarial loss	4	1
Benefits paid	(8)	(6)
Benefit obligation at end of year	44	45	46
Beginning balance	0	0
Actual return on plan assets	0	0
Employer contributions	7	5
Ending balance	0	0	0
Funded status	$ (44)	$ (45)