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Changes in Carrying Amount of Service and Product Warranties (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 30, 2013
Product Liability Contingency [Line Items]
Beginning balance	$ 54
Service and product warranty provision	12
Payments	(13)
Ending balance	$ 53

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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