Derivative Financial Instruments (Fair Value Of All Derivative Instruments) (Details) (USD $) In Millions, unless otherwise specified	Mar. 29, 2014	Sep. 28, 2013
Derivative [Line Items]
Derivative Assets	$ 51	$ 32
Derivative Liabilities	186	102
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Assets	5	5
Derivative Liabilities	119	29
Designated as Hedging Instrument [Member] | Commodity Contracts [Member]
Derivative [Line Items]
Derivative Assets	5	4
Derivative Liabilities	119	29
Designated as Hedging Instrument [Member] | Foreign Currency [Member]
Derivative [Line Items]
Derivative Assets	0	1
Derivative Liabilities	0	0
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Derivative Assets	46	27
Derivative Liabilities	67	73
Not Designated as Hedging Instrument [Member] | Commodity Contracts [Member]
Derivative [Line Items]
Derivative Assets	45	25
Derivative Liabilities	66	72
Not Designated as Hedging Instrument [Member] | Foreign Currency [Member]
Derivative [Line Items]
Derivative Assets	1	2
Derivative Liabilities	$ 1	$ 1