Adjustments Related to Fair Value Hedges Included in Net Interest Expense in Consolidated Statements of Income (Details) (Interest rate, Interest Expense, USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Interest rate | Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on interest rate swaps	$ (114)	$ 25	$ (178)	$ 9
Gain (loss) on hedged borrowings	$ 114	$ (25)	$ 178	$ (9)