Gross Fair Value of Derivative Positions (Details) (USD $) In Millions, unless otherwise specified	Dec. 28, 2013		Sep. 28, 2013
Current Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	$ 223		$ 161
Total derivatives assets	51	[1]	24	[1]
Current Assets | Netting
Derivatives, Fair Value [Line Items]
Derivatives assets	(172)		(137)
Current Assets | Derivatives designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives assets	186		146
Current Assets | Derivatives designated as hedges | Interest rate
Derivatives, Fair Value [Line Items]
Derivatives assets	0		0
Current Assets | Derivatives not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives assets	37		15
Other Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	306		276
Total derivatives assets	259	[1]	242	[1]
Other Assets | Netting
Derivatives, Fair Value [Line Items]
Derivatives assets	(47)		(34)
Other Assets | Derivatives designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives assets	143		106
Other Assets | Derivatives designated as hedges | Interest rate
Derivatives, Fair Value [Line Items]
Derivatives assets	163		170
Other Assets | Derivatives not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives assets	0		0
Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(284)		(244)
Total derivatives liabilities	(106)	[1]	(101)	[1]
Other Accrued Liabilities | Netting
Derivatives, Fair Value [Line Items]
Derivatives liabilities	178		143
Other Accrued Liabilities | Derivatives designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(86)		(68)
Other Accrued Liabilities | Derivatives designated as hedges | Interest rate
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(117)		(94)
Other Accrued Liabilities | Derivatives not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(81)		(82)
Other Long-Term Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(79)		(51)
Total derivatives liabilities	(38)	[1]	(23)	[1]
Other Long-Term Liabilities | Netting
Derivatives, Fair Value [Line Items]
Derivatives liabilities	41		28
Other Long-Term Liabilities | Derivatives designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(32)		(24)
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	$ (47)		$ (27)

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