Pensions And Other Postretirement Benefits (Reconciliation Of Change In Fair Value Measurement Of Defined Benefit Plans' Consolidated Assets Using Significant Unobservable Inputs) (Details) (USD $) In Millions	12 Months Ended
	Oct. 01, 2011
Defined Benefit Plan Disclosure [Line Items]
Ending balance	$ 74
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	22
Assets still held at reporting date	(1)
Assets sold during the period	0
Purchases, sales and settlements, net	0
Transfers in and/or out of Level 3	0
Ending balance	21
Level 3 [Member] | Alternative Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	7
Assets still held at reporting date	(1)
Assets sold during the period	0
Purchases, sales and settlements, net	0
Transfers in and/or out of Level 3	0
Ending balance	6
Level 3 [Member] | Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Beginning balance	15
Assets still held at reporting date	0
Assets sold during the period	0
Purchases, sales and settlements, net	0
Transfers in and/or out of Level 3	0
Ending balance	$ 15