Warranty and Deferred Extended Warranty Revenue (Tables)

3 Months Ended

Apr. 29, 2011

Extended Product Warranty Disclosure [Abstract]

Warranty And Deferred Extended Warranty Revenue [Text Block]

	Three Months Ended
	April 29, 2011			April 30, 2010
	(in millions)
Warranty liability:
Warranty liability at beginning of period	$	895		$	912
Costs accrued for new warranty contracts and changes in estimates for pre-existing warranties(a)(b)	293			310
Service obligations honored	(257		)	(295		)
Warranty liability at end of period	$	931		$	927
Current portion	$	620		$	626
Non-current portion	311			301
Warranty liability at end of period	$	931		$	927
	Three Months Ended
	April 29, 2011			April 30, 2010
	(in millions)
Deferred extended warranty revenue:
Deferred extended warranty revenue at beginning of period	$	6,416		$	5,910
Revenue deferred for new extended warranties(b)	1,068			882
Revenue recognized	(895		)	(821		)
Deferred extended warranty revenue at end of period	$	6,589		$	5,971
Current portion	$	3,060		$	2,809
Non-current portion	3,529			3,162
Deferred extended warranty revenue at end of period	$	6,589		$	5,971

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^(a)  Changes in cost estimates related to pre-existing warranties are aggregated with accruals for new standard warranty contracts. Dell's warranty liability process does not differentiate between estimates made for pre-existing warranties and new warranty obligations.

^(b)  Includes the impact of foreign currency exchange rate fluctuations.