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Warranty and Deferred Extended Warranty Revenue (Notes)
 3 Months Ended
Apr. 29, 2011
Extended Product Warranty Disclosure [Abstract]  
Warranty and Deferred Extended Warranty Revenue [Text Block]
NOTE 10 — WARRANTY AND DEFERRED EXTENDED WARRANTY REVENUE
Dell records liabilities for its standard limited warranties at the time of sale for the estimated costs that may be incurred. The liability for standard warranties is included in accrued and other current and other non-current liabilities on the Condensed Consolidated Statements of Financial Position. Revenue from the sale of extended warranties is recognized over the term of the contract or when the service is completed, and the costs associated with these contracts are recognized as incurred. Deferred extended warranty revenue is included in deferred services revenue on the Condensed Consolidated Statements of Financial Position. Changes in Dell's liabilities for standard limited warranties and deferred services revenue related to extended warranties are presented in the following tables:
 
 
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
 
____________________
(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.