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Accrued Expenses - Activity in Warranty Accrual for Product Warranty (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance, beginning of the period	$ 278	$ 255	$ 236
Provision	198	182	175
Amounts charged to the accrual	(187)	(159)	(156)
Balance, end of the period	$ 289	$ 278	$ 255

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. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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