Gross Fair Value of Derivative Positions (Details) (USD $) In Millions, unless otherwise specified	Jun. 29, 2013		Sep. 29, 2012
Current Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	$ 318		$ 343
Total derivatives assets	226	[1]	226	[1]
Current Assets | Netting
Derivatives, Fair Value [Line Items]
Derivatives assets	(92)		(117)
Current Assets | Derivatives designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives assets	202		84
Current Assets | Derivatives designated as hedges | Interest rate
Derivatives, Fair Value [Line Items]
Derivatives assets	0		1
Current Assets | Derivatives not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives assets	116		258
Other Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	320		286
Total derivatives assets	302	[1]	250	[1]
Other Assets | Netting
Derivatives, Fair Value [Line Items]
Derivatives assets	(18)		(36)
Other Assets | Derivatives designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives assets	137		30
Other Assets | Derivatives designated as hedges | Interest rate
Derivatives, Fair Value [Line Items]
Derivatives assets	181		238
Other Assets | Derivatives not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives assets	2		18
Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(180)		(185)
Total derivatives liabilities	(80)	[1]	(68)	[1]
Other Accrued Liabilities | Netting
Derivatives, Fair Value [Line Items]
Derivatives liabilities	100		117
Other Accrued Liabilities | Derivatives designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(35)		(94)
Other Accrued Liabilities | Derivatives designated as hedges | Interest rate
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(103)		0
Other Accrued Liabilities | Derivatives not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(42)		(91)
Other Long-Term Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(10)		(50)
Total derivatives liabilities	0	[1]	(14)	[1]
Other Long-Term Liabilities | Netting
Derivatives, Fair Value [Line Items]
Derivatives liabilities	10		36
Other Long-Term Liabilities | Derivatives designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(9)		(50)
Other Long-Term Liabilities | Derivatives designated as hedges | Interest rate
Derivatives, Fair Value [Line Items]
Derivatives liabilities	0		0
Other Long-Term Liabilities | Derivatives not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives liabilities	$ (1)		$ 0

[1] Refer to Note 12 for further information on derivative fair values and counterparty netting.