Fair Value of Derivative Positions (Detail) (USD $) In Millions	Oct. 01, 2011		Oct. 02, 2010
Interest rate | Derivatives designated as hedges | Current Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	$ 1		$ 13
Interest rate | Derivatives designated as hedges | Other Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	213		218
Foreign exchange | Derivatives designated as hedges | Current Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	133		78
Foreign exchange | Derivatives designated as hedges | Other Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	33		65
Foreign exchange | Derivatives designated as hedges | Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(100)		(210)
Foreign exchange | Derivatives designated as hedges | Other Long-Term Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(90)		(104)
Other derivatives | Derivatives designated as hedges | Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(1)
Interest rate | Derivatives not designated as hedges | Other Long-Term Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(18)		(22)
Foreign exchange | Derivatives not designated as hedges | Current Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	103		80
Foreign exchange | Derivatives not designated as hedges | Other Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	229		181
Foreign exchange | Derivatives not designated as hedges | Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(51)		(140)
Foreign exchange | Derivatives not designated as hedges | Other Long-Term Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(21)		(36)
Derivative Financial Instruments, Assets | Current Assets
Derivatives, Fair Value [Line Items]
Total Derivatives	126	[1]	50	[1]
Derivative Financial Instruments, Assets | Other Assets
Derivatives, Fair Value [Line Items]
Total Derivatives	419	[1]	379	[1]
Derivative Financial Instruments, Liabilities | Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Total Derivatives	(41)	[1]	(220)	[1]
Derivative Financial Instruments, Liabilities | Other Long-Term Liabilities
Derivatives, Fair Value [Line Items]
Total Derivatives	(73)	[1]	(86)	[1]
Current Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	237		171
Counterparty netting, asset	(111)		(121)
Other Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	475		464
Counterparty netting, asset	(56)		(85)
Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(152)		(350)
Counterparty netting, liability	111		130
Other Long-Term Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(129)		(162)
Counterparty netting, liability	$ 56		$ 76

[1] Refer to Note 16 for further information on derivative fair values and counterparty netting.