Gross Fair Value of Derivative Positions (Details) (USD $) In Millions, unless otherwise specified	Mar. 29, 2014		Sep. 28, 2013
Current Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	$ 160		$ 161
Total derivatives assets	12	[1]	24	[1]
Current Assets | Netting
Derivatives, Fair Value [Line Items]
Derivatives assets	(148)		(137)
Current Assets | Derivatives Designated as Hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives assets	140		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	20		15
Other Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	262		276
Total derivatives assets	199	[1]	242	[1]
Other Assets | Netting
Derivatives, Fair Value [Line Items]
Derivatives assets	(63)		(34)
Other Assets | Derivatives Designated as Hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives assets	116		106
Other Assets | Derivatives Designated as Hedges | Interest rate
Derivatives, Fair Value [Line Items]
Derivatives assets	146		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	(266)		(244)
Total derivatives liabilities	(99)	[1]	(101)	[1]
Other Accrued Liabilities | Netting
Derivatives, Fair Value [Line Items]
Derivatives liabilities	167		143
Other Accrued Liabilities | Derivatives Designated as Hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(97)		(68)
Other Accrued Liabilities | Derivatives Designated as Hedges | Interest rate
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(85)		(94)
Other Accrued Liabilities | Derivatives not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(84)		(82)
Other Long-Term Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(94)		(51)
Total derivatives liabilities	(50)	[1]	(23)	[1]
Other Long-Term Liabilities | Netting
Derivatives, Fair Value [Line Items]
Derivatives liabilities	44		28
Other Long-Term Liabilities | Derivatives Designated as Hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(41)		(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	$ (53)		$ (27)

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