v2.4.0.6

Commitments and Contingencies (Tables)

6 Months Ended

Oct. 26, 2012

Schedule Of Product Warranty

The following table summarizes our warranty reserves (in millions):

		Three Months Ended								Six Months Ended
		October 26, 2012				October 28, 2011				October 26, 2012				October 28, 2011
Beginning balance		$	96.5			$	59.5			$	83.1			$	40.5
Liability assumed in acquisition			0.0				0.0				0.0				17.5
Expense accrued during the period			27.1				15.7				50.8				27.4
Warranty costs incurred			(11.8	)			(10.2	)			(22.1	)			(20.4	)
Ending balance		$	111.8			$	65.0			$	111.8			$	65.0

Schedule Of Maximum Potential Future Payments Under Financing Arrangements With Third Parties

The aggregate amount of financing guarantees representing the total maximum potential future payments under financing arrangements with third parties, and the related deferred revenue are summarized as follows (in millions):

		October 26, 2012				April 27, 2012
Maximum guaranteed payment contingencies		$	170.8			$	169.0
Deferred revenue associated with financing guarantees			(154.5	)			(149.9	)
Maximum potential future payments relating to financing guarantees, net of associated deferred revenue		$	16.3			$	19.1

X

- Definition

Schedule Of Maximum Potential Future Payments Under Financing Arrangements With Third Parties [Table Text Block]

+ References

No definition available.

+ Details

Name:	ntap_ScheduleOfMaximumPotentialFuturePaymentsUnderFinancingArrangementsWithThirdPartiesTableTextBlock
Namespace Prefix:	ntap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 460

-SubTopic 10

-Section 50

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

+ Details

Name:	us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration