Assets and Liabilities Measured at Fair Value (Detail) (Fair Value, Measurements, Recurring, USD $) In Millions, unless otherwise specified	Sep. 29, 2012		Oct. 01, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments	$ 86		$ 186
Total recorded at fair value	480		658
Fair value of borrowings	15,146		14,151
Residual Interests			40
Interest rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives assets	239	[1]	214	[1]
Derivatives liabilities			(18)	[1]
Foreign exchange
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives assets	390	[1]	498	[1]
Derivatives liabilities	(235)	[1]	(262)	[1]
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments	86		143
Total recorded at fair value	86		143
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments			43
Total recorded at fair value	394		475
Fair value of borrowings	13,493		11,081
Level 2 | Interest rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives assets	239	[1]	214	[1]
Derivatives liabilities			(18)	[1]
Level 2 | Foreign exchange
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives assets	390	[1]	498	[1]
Derivatives liabilities	(235)	[1]	(262)	[1]
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total recorded at fair value			40
Fair value of borrowings	1,653		3,070
Residual Interests			$ 40

[1] The Company has a master netting arrangement by counterparty with respect to certain derivative contracts. Contracts in a liability position totaling $153 million and $167 million have been netted against contracts in an asset position in the Consolidated Balance Sheets at September 29, 2012 and October 1, 2011, respectively.