Gross Fair Value of Derivative Positions (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011		Oct. 01, 2011
Current Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	$ 198		$ 237
Counterparty netting, asset	(84)		(111)
Current Assets | Derivatives designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives assets	141		133
Current Assets | Derivatives designated as hedges | Interest rate
Derivatives, Fair Value [Line Items]
Derivatives assets			1
Current Assets | Derivatives not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives assets	57		103
Current Assets | Derivative Financial Instruments, Assets
Derivatives, Fair Value [Line Items]
Total Derivatives	114	[1]	126	[1]
Other Assets
Derivatives, Fair Value [Line Items]
Derivatives assets	473		475
Counterparty netting, asset	(36)		(56)
Other Assets | Derivatives designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives assets	42		33
Other Assets | Derivatives designated as hedges | Interest rate
Derivatives, Fair Value [Line Items]
Derivatives assets	210		213
Other Assets | Derivatives not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives assets	221		229
Other Assets | Derivative Financial Instruments, Assets
Derivatives, Fair Value [Line Items]
Total Derivatives	437	[1]	419	[1]
Other Accrued Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(132)		(152)
Counterparty netting, liability	84		111
Other Accrued Liabilities | Derivatives designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(95)		(100)
Other Accrued Liabilities | Derivatives designated as hedges | Other derivatives
Derivatives, Fair Value [Line Items]
Derivatives liabilities			(1)
Other Accrued Liabilities | Derivatives not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(37)		(51)
Other Accrued Liabilities | Derivative Financial Instruments, Liabilities
Derivatives, Fair Value [Line Items]
Total Derivatives	(48)	[1]	(41)	[1]
Other Long-Term Liabilities
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(92)		(129)
Counterparty netting, liability	36		56
Other Long-Term Liabilities | Derivatives designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(74)		(90)
Other Long-Term Liabilities | Derivatives not designated as hedges | Foreign exchange
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(1)		(21)
Other Long-Term Liabilities | Derivatives not designated as hedges | Interest rate
Derivatives, Fair Value [Line Items]
Derivatives liabilities	(17)		(18)
Other Long-Term Liabilities | Derivative Financial Instruments, Liabilities
Derivatives, Fair Value [Line Items]
Total Derivatives	$ (56)	[1]	$ (73)	[1]

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