10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-K

(Mark One)

R ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year endedApril 24, 2015

or

£ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                     to                     

Commission File Number 000-27130

NetApp, Inc.

(Exact name of registrant as specified in its charter)

Delaware	77-0307520
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)

495 East Java Drive,

Sunnyvale, California 94089

(Address of principal executive offices, including zip code)

(408) 822-6000

(Registrant’s telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Name of exchange on which registered
Common Stock, $0.001 Par Value	The NASDAQ Stock Market LLC

Securities registered pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.  Yes  þ    No  o

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.  Yes  o    No  þ

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes  þ    No  o

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes  þ    No  o

Indicate by a check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large  accelerated filer	þ		Accelerated filer	o
Non-accelerated filer	o	(Do not check if  a smaller reporting company)	Smaller  reporting company	o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes  o    No  þ

The aggregate market value of voting stock held by non-affiliates of the registrant, as of October 24, 2014, the last business day of the registrant’s most recently completed second fiscal quarter, was $9,344,629,689 (based on the closing price for shares of the registrant’s common stock as reported by the NASDAQ Global Select Market on that date). Shares of common stock held by each executive officer, director, and holder of 5% or more of the outstanding common stock have been excluded in that such persons may be deemed to be affiliates. This determination of possible affiliate status is not a conclusive determination for other purposes.

On May 29, 2015, 304,979,186 shares of the registrant’s common stock, $0.001 par value, were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

The information called for by Part III of this Form 10-K is hereby incorporated by reference from the definitive Proxy Statement for our annual meeting of stockholders, which will be filed with the Securities and Exchange Commission not later than 120 days after April 24, 2015.

TABLE OF CONTENTS

	PART I
Item 1	Business	3
Item 1A	Risk Factors	15
Item 1B	Unresolved Staff Comments	25
Item 2	Properties	25
Item 3	Legal Proceedings	25
Item 4	Mine Safety Disclosures	25
	PART II
Item 5	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	26
Item 6	Selected Financial Data	29
Item 7	Management’s Discussion and Analysis of Financial Condition and Results of Operations	30
Item 7A	Quantitative and Qualitative Disclosures About Market Risk	48
Item 8	Financial Statements and Supplementary Data	49
Item 9	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	85
Item 9A	Controls and Procedures	85
Item 9B	Other Information	85
	PART III
Item 10	Directors, Executive Officers and Corporate Governance	86
Item 11	Executive Compensation	86
Item 12	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	86
Item 13	Certain Relationships and Related Transactions, and Director Independence	86
Item 14	Principal Accounting Fees and Services	86
	PART IV
Item 15	Exhibits, Financial Statement Schedules	86
Signatures		87

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Cautionary Note on Forward-Looking Statements

This Annual Report on Form 10-K contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the Exchange Act). Forward-looking statements are all statements (and their underlying assumptions) included in this document that refer, directly or indirectly, to future events or outcomes and, as such, are inherently not factual, but rather reflect only our current projections for the future. Consequently, forward-looking statements usually include words such as “estimate,” “intend,” “plan,” “predict,” “seek,” “may,” “will,” “should,” “would,” “could,” “anticipate,” “expect,” “believe,” or similar words, in each case, intended to refer to future events or circumstances. A non-comprehensive list of the topics including forward-looking statements in this document includes:

· our future financial and operating results;

· our strategy;

· our beliefs and objectives for future operations, research and development;

· expectations regarding future growth and performance;

· political, economic and industry trends;

· expected timing of, customer acceptance of and benefits from, product introductions, developments and enhancements;

· expected benefits from acquisitions and joint ventures, growth opportunities and investments;

· expected outcomes from legal, regulatory and administrative proceedings;

· our competitive position;

· our short-term and long-term cash requirements, including, without limitation, anticipated capital expenditures;

· our anticipated tax rate;

· the repayment of our 2.00% Senior Notes due on December 15, 2017, 3.375% Senior Notes due on June 15, 2021 and 3.25% Senior Notes due on December 15, 2022 (collectively referred to as the Senior Notes);

· future uses of our cash, including, without limitation, the continuation of our stock repurchase and cash dividend programs.

All forward-looking statements included in this document are inherently uncertain as they are based on management’s current expectations and assumptions concerning future events, and are subject to numerous known and unknown risks and uncertainties. Therefore, actual events and results may differ materially from these forward-looking statements. Factors that could cause actual results to differ materially from those described herein include, but are not limited to:

· the overall growth, structure and changes of the data storage industry;

· our ability to understand, and effectively respond to changes affecting, our market environment, products, technologies and customer requirements, including the impact of the cloud;

· general global political, macroeconomic and market conditions;

· changes in U.S. government spending;

· our ability to accurately forecast demand for our products and services, and future financial performance;

· our ability to successfully manage our backlog;

· our ability to successfully execute on our strategy to generate profitable growth and stockholder return;

· disruptions in our supply chain, which could limit our ability to ship products to our customers in the amounts and at the prices forecasted;

· our ability to maintain our customer, partner, supplier and contract manufacturer relationships on favorable terms and conditions;

· our ability to maintain our gross profit margins;

· our ability to timely and successfully introduce and increase volumes of new products and services and to forecast demand and pricing for the same;

· our ability to gain customer acceptance of new products;

· the actions of our competitors, most of which are larger and have greater financial and other resources than we have, including, without limitation, their ability to introduce competitive products and to acquire businesses and technologies that negatively impact our strategy, operations or customer demand for our products;

· the impact of industry consolidation affecting our suppliers, competitors, partners and customers;

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· our ability to grow direct and indirect sales and to efficiently provide global service and support;

· our ability to design, manufacture and market products meeting global environmental standards;

· failure of our products and services to meet our customers’ quality requirements, including, without limitation, any epidemic failure event relating to our systems installed by our customers in their IT infrastructures;

· our ability to resolve ongoing litigation, tax audits, government audits, inquiries and investigations in line with our expectations;

· our ability to accelerate the adoption of our newest products;

· the availability of acceptable financing to support our future cash requirements;

· our ability to effectively integrate acquired businesses, products and technologies;

· valuation and liquidity of our investment portfolio;

· foreign exchange rate impacts;

· our ability to successfully recruit and retain critical employees and to manage our investment in people, process and systems;

· our ability to anticipate techniques used to obtain unauthorized access or to sabotage systems and to implement adequate preventative measures against cybersecurity and other security breaches; and

· those factors discussed under the heading “Risk Factors” elsewhere in this Annual Report on Form 10-K.

Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this document and are based upon information available to us at this time. These statements are not guarantees of future performance. Except as required by law, we disclaim any obligation to update information in any forward-looking statement. Actual results could vary from our forward-looking statements due to the foregoing factors as well as other important factors.

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PART I

Item 1.  Business

Overview

NetApp, Inc. (NetApp, we or us) provides software, systems and services to manage and store customer data. We enable enterprises, service providers, governmental organizations, and partners to envision, deploy and evolve their IT environments. Customers benefit from our collaboration with other technology leaders to create the specific solutions they need. We were incorporated in 1992 and created the world’s first networked storage appliance. Today, we offer a portfolio of products and services that satisfy a broad range of customer workloads across different data types and deployment models.

Customer Needs

With an IT industry in transition, enterprise IT buyers have many choices in delivery options and emerging technologies. Customers are looking to NetApp for guidance and innovation to help them achieve the right balance of flexibility, cost and data control. They want help creating long-term IT strategies that reduce costs and risk while driving growth and success for their organizations.

New cloud computing options in particular offer compelling advantages but also raise risks. Customers want to seamlessly integrate public cloud resources as an extension of their internal IT environment, an approach known as hybrid cloud. One of the biggest challenges to this vision is data management. While other parts of the IT infrastructure are largely interchangeable and carry no history, once data is created it needs to be protected and managed for its lifetime. As data grows, data and application mobility consume more time and bandwidth. The net result is that data management, NetApp's core competency, has become essential to realizing the promise of the hybrid cloud. To help customers navigate this changing IT landscape, NetApp is investing in key areas including:

Hybrid Cloud. NetApp believes that the hybrid cloud will become the dominant model for enterprise IT for years to come. Customers are attracted by the speed and scale benefits of the public cloud but need new data management strategies to keep control of data as it moves beyond the walls of the enterprise. Today, the hybrid cloud is a range of isolated, incompatible data silos. Every cloud provider has a different way to manage customers’ data, making it difficult to move data from one cloud provider to another. NetApp’s vision for enabling customers to achieve both data control and choice in IT deployment models in the hybrid cloud is called the data fabric. Our patented data management solutions give customers confidence that no matter where their data resides, on-premises or in a public cloud resource, they can control, integrate, move, secure and consistently manage it. Customers benefit from NetApp’s investments and expertise in building enterprise-class hybrid cloud deployments that adapt as their needs change.

Flash. Multiple approaches to the use of flash will become the standard for enterprises as they evolve their long-term IT strategies. NetApp is focused on building a deep and differentiated patented technology around flash, and providing a portfolio of offerings to help customers best integrate flash into their enterprise. We offer both all-flash arrays and hybrid flash arrays to enable the right balance of performance, efficiency, reliability and scale. Our flash solutions help customers drive greater speed, responsiveness, and value from the applications that control key business operations. Our offerings remove performance bottlenecks that negatively affect productivity and the customer experience and eliminate storage overprovisioning that increases costs and adds to inefficiency. Our broad portfolio includes hybrid and all-flash storage offerings, which enable IT organizations to optimize the level of performance, efficiency, and scale to meet their specific needs.

Converged infrastructure. Due to budget constraints and skill imbalances, our customers need greater support from their technology partners to evaluate, integrate, deploy and sustain the sophisticated solutions they need to stay competitive. This trend is driving the demand for converged infrastructure solutions that reduce the time of deployment and lower integration risk. By working with other best-in-class hardware and software providers, NetApp offers a compelling business value through our FlexPod^® converged solutions, which reduce risks in ways that cannot be matched by the proprietary stacks offered by server vendors. FlexPod offerings, created in partnership with Cisco, provide a broad range of reference architectures based on our patented technology. Solutions are available for popular top-tier business applications, including Microsoft, Oracle, SAP and Citrix. We also offer FlexPod solutions for dedicated, high-performance workloads such as big data, HPC, and video analytics that integrate Hadoop.

Software-defined Storage: Software-defined storage (SDS) is a key component of the software-defined data center, an evolving architecture and set of technologies designed to speed delivery of IT services to application owners within an enterprise. In an SDS model, storage services are delivered as a software layer that can be abstracted from underlying hardware. NetApp is a leader in delivering innovative SDS technology, having followed the principles of SDS for more than 20 years by incorporating our patented software-defined capabilities throughout our products, rather than adding a separate management layer. Working with NetApp, IT organizations can deploy SDS solutions that address both near-term demands as well as create

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a long-term roadmap to extend improvements across services provisioning, storage virtualization, infrastructure data collection, data retention, analysis, and reporting as business needs change.

Product, Services and Solutions Portfolio

Our data management and storage offerings help improve business productivity, performance and profitability, while providing investment protection and enhanced asset utilization. We complement our enterprise-class storage solutions with services expertise that maximizes the business benefits customers gain from deploying our products. In fiscal year 2015, NetApp demonstrated our ability to help customers make sense of the changing IT landscape with products and services that satisfy a broad range of customer workloads across different data types and deployment models.

Our patented unified scale-out fabric-attached storage (FAS) platform uses the NetApp Data ONTAP^® storage operating system. Data ONTAP software delivers integrated data protection, comprehensive data management, and built-in efficiency software for virtualized, shared infrastructures, cloud computing, and mixed workload business applications. Our E-Series platform with SANtricity^® storage management software offers high-performance, reliable, scalable, and space-efficient storage for demanding storage area networks workloads needing an optimized price-to-performance ratio. We offer hybrid and all-flash configurations of both E-Series and FAS platforms.

Our new FlashRay™ all-flash array system, which runs the Mars™ operating system, is designed from the ground up to improve the performance, efficiency and manageability of all-flash storage architectures used in enterprise application environments.

In October 2014, we announced the acquisition of Riverbed Technology’s SteelStore^® product line. The SteelStore product supports leading backup applications and cloud providers so that customers have a choice in how they extend their existing data protection infrastructure into the cloud. This enables us to offer enterprises cloud-integrated storage to securely and efficiently back up their data, to both private and public cloud environments.

Data Storage Systems

FAS Unified Storage Systems

Our FAS family of unified storage systems streamlines, simplifies, and consolidates storage and data management. Our modular, scalable, and highly available FAS architecture supports both scale-up and scale-out growth strategies utilizing the highly efficient Data ONTAP storage operating system.

In June 2014, NetApp introduced two new FAS storage system platforms—the extreme-performance FAS8080 EX and the entry value-priced FAS2500. The FAS8080 EX is optimized for performance-intensive storage area network (SAN) and network-attached storage (NAS) workloads at the largest scale. The entry-level FAS2500 hybrid arrays meets the needs of smaller organizations for simplified operations, integration with existing partner ecosystems, extended system life, and investment protection in their storage assets as their company grows.

E-Series Storage Systems

Since May 2011, NetApp has been offering E-Series storage arrays for SAN workloads. Core patented differentiators of this price-performance leader include enterprise reliability, availability and scalability. Customers choose E-Series for general purpose computing, high-density content repositories, video surveillance, and high-performance computing workloads where data is managed by the application and the advanced data management capabilities of Data ONTAP storage operating system are not required. The modular flexibility of the E-Series enables custom configurations optimized to scale as needed up to petabytes of performance-oriented storage.

In February 2015, NetApp announced the E5600, the newest hybrid entry in the E-Series family. It offers a mix of flash and disk to provide cost-effective performance for capacity-intensive applications such as email, SharePoint, high-performance computing, data warehousing and video.

Flash Systems and Technologies

NetApp flash solutions enable business agility, improve user experience, lower costs, and use less energy than traditional storage solutions. We are a leader in the delivery of flash innovation. We integrate flash technology across our FAS and E-Series storage platforms, in all-flash and hybrid configurations, and offer the dedicated FlashRay all-flash array.

All-Flash Arrays

NetApp all-flash arrays are designed to deliver extreme input/output operations per second (IOPS) and ultralow latency to drive greater speed, responsiveness, and value from the applications that control key business operations.

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NetApp offers three complementary platforms in our all-flash portfolio:

NetApp EF-Series is a field-proven platform with a highly efficient, streamlined, patented operating system that was built for I/O-intensive workloads where the focus is on performance, latency, density, and price. EF-Series meets customer needs for latency-sensitive databases and high-performance SAN workloads that leverage application-based advanced data management features. Our newest model, the EF560, was introduced in January 2015, with improvements in storage performance to offer the absolute and consistent latency, bandwidth and IOPS critical to enterprise database and analytics applications.

NetApp All-Flash FAS combines low-latency performance with robust data management, built-in efficiencies, integrated data protection, multiprotocol support, and nondisruptive operations. All-Flash FAS can be deployed as a standalone system with Data ONTAP software. It also can be deployed as a high-performance tier in a clustered Data ONTAP^® configuration with nondisruptive data mobility between tiers. FAS was built for consolidated workloads and is ideally suited for customers interested in building efficient shared storage infrastructures using clustered Data ONTAP.

NetApp FlashRay is our new architecture built from the ground up to improve the economics and performance of flash, while delivering the classic NetApp values of efficiency, protection and data management. The result is an innovative, patented approach to all-flash storage that delivers adaptable low-latency performance and no-compromise inline efficiencies. We designed FlashRay arrays with the future in mind, establishing a foundation that will enable tight integration with Data ONTAP and leverage future solid-state technologies to further drive down the cost of all-flash storage.

Hybrid Arrays

Flash storage today is primarily offered in the form of hybrid arrays, a practical best-of-both-worlds approach that uses a mix of flash and traditional hard disk drives (HDD). Hybrid arrays provide the right level of performance at the right cost for mainstream business applications. Hybrid FAS and E-Series arrays combine flash storage with HDD storage to increase performance, reduce latency, shrink rack space requirements, and lower power and cooling costs.

Data Management Software

Data ONTAP Storage Operating System

NetApp’s Data ONTAP storage operating system is a patented, unified data storage platform that supports any mix of SAN and NAS environments. Our platform is compatible with UNIX, Linux, Windows, and web environments.

Clustered Data ONTAP software enables unrestricted and secure data movement across multiple cloud environments and paves the way for software-defined data centers. It offers advanced performance, availability, and efficiency. In a single, feature-rich platform, clustered Data ONTAP software lets customers scale their infrastructure without increasing IT staff. Benefits include:

Nondisruptive operations — Perform storage maintenance, hardware lifecycle operations, and software upgrades without business interruptions.

Proven efficiency — Reduces storage costs by consolidating workloads on the same infrastructure.

Seamless scalability — SAN and NAS storage capacity, performance, and operations scale without reconfiguring running applications.

In October 2014, we introduced the latest release of clustered Data ONTAP. Enhancements to this software-defined storage operating system help organizations of all sizes improve their levels of availability, performance and efficiency. New support for NetApp MetroCluster™ Disaster Recovery Software in this release provides enterprises with uninterrupted recovery from failures across data centers. Critical business applications can continue to operate in the event of disasters or planned outages. The latest version of the software includes performance optimizations for all-flash nodes so customers can maximize performance without sacrificing rich data management, protection, or flexible data movement. The new software includes increased efficiency that significantly improves the cost per gigabyte and cost per IOPS of clustered Data ONTAP, delivering a better return on investment for organizations.

Our new Cloud ONTAP subscription service, announced in October 2014 and enhanced in February 2015, brings the power of clustered Data ONTAP to the public cloud by allowing customers to launch an instance of Data ONTAP in a public hyperscale cloud environment. This first release of Cloud ONTAP service works with hyperscale cloud services from Amazon Web Services (AWS). Cloud ONTAP service uses patented NetApp technologies for non-disruptive operations, seamless scalability, and efficiency, and combines them with the on-demand computing benefits of cloud services. This approach provides a consistent set of data services

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throughout a hybrid cloud environment. AWS is the first platform provider to run Cloud ONTAP services on its cloud environment. NetApp intends to support additional providers in future releases.

SANtricity Storage Operating System

The NetApp SANtricity operating System, purpose-built for SAN, is performance-optimized to deliver data to enterprise SAN applications. It provides superior performance, reliability, and data protection for application-driven workloads that run on NetApp EF-Series and E-Series platforms. It allows customers to optimize performance on the fly, with adaptive caching algorithms to achieve high IOPS and throughput. Installed on a million systems worldwide, the SANtricity OS is field-proven. In addition, SANtricity Storage Manager offers a powerful, easy-to-use interface for administering E-Series storage systems. With SANtricity software, storage administrators can achieve maximum performance and utilization of storage through extensive configuration flexibility and custom performance tuning.

OnCommand^® Management Software and Management Integration Tools

The NetApp OnCommand storage management software portfolio incorporates a broad range of data management tools for NetApp and multivendor storage. These products help our customers’ transition to the hybrid cloud. They improve visibility and allow customers to manage, monitor, and optimize their hybrid cloud environments. The portfolio includes:

OnCommand Cloud Manager, announced in October 2014, provides a simplified management interface for NetApp Cloud ONTAP service and NetApp Private Storage (NPS) for Cloud solutions. It allows customers to manage and track cloud resources within AWS, and provision and monitor Cloud ONTAP instances from one central console.

OnCommand Workflow Automation improves productivity by automating repeatable manual storage-management processes. It enables users to construct, customize, publish, and activate a broad range of storage workflows, including one-click automation and deployment of applications from VMware® , Oracle®, Microsoft®, SAP®, Citrix and others. It lowers the cost of storage management while fostering the use of best practices.

OnCommand Unified Manager provides a single dashboard to confirm the health of clustered Data ONTAP storage availability, capacity, performance and data protection relationships. It integrates with OnCommand Workflow Automation to automate storage tasks and data protection processes.

OnCommand System Manager, developed for midsize organizations or smaller environments within larger enterprises and service providers, delivers device-level management for NetApp FAS storage systems. It is optimized for IT generalists who need streamlined management, an easy-to-use interface, and best-practice workflows.

OnCommand Insight storage resource management provides end-to-end multivendor storage management, with a view of performance metrics, including application, datastore, virtual machine, and storage infrastructure performance. It enables customers to improve capacity planning, accelerate consolidation projects, and meet internal business reporting expectations. This innovative tool also allows users to discover orphaned and underutilized storage and detect risks to their environments.

Object Storage Software

NetApp StorageGRID^® software allows organizations to store and manage massive amounts of data worldwide, on premises and in the cloud. StorageGRID Webscale is a purpose-built, patented, software-defined storage solution for large archives, media repositories, and web data stores. The sophisticated StorageGRID Webscale policy engine provides automated data placement across storage tiers, physical sites, and hybrid clouds. It can be tuned according to customers’ performance and availability requirements and optimized for cost as data ages. Real-time auditing provides continuous and active monitoring for service-level agreement verification and reporting. In February 2015, NetApp added support for Amazon Simple Storage Service (S3) as a storage tier to StorageGRID Webscale, providing a scalable, highly durable object storage solution for long-term archives.

Data Protection Software

NetApp offers a range of software products to protect customers’ valuable data and applications. These provide optimal availability and IT efficiency while safeguarding data assets.

NetApp Integrated Data Protection (IDP) uses patented data protection services embedded in our Data ONTAP operating system. This solution scales across applications and virtual infrastructures because it runs in storage, where data resides. It requires fewer server, storage, and network resources than competitor offerings, and services can be activated and delivered in minutes.

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With IDP, customers lower their cost by purchasing and maintaining fewer systems for data protection. They benefit from controlled data access with secure multi-tenancy and military-grade (AES-256) encryption and proven key-management solutions.

Business Continuity and High-Availability Solutions

· SnapMirror^® data replication technology provides disaster recovery protection and simplifies the management of data replication.

· MetroCluster™ continuous-availability and disaster recovery software delivers zero data loss, transparent failover protection, and nondisruptive upgrades.

Disk-to-Disk Backup and Recovery Solutions

· SnapVault^® software speeds and simplifies backup and data recovery, protecting data at the block level.

· SnapRestore^® data recovery software uses stored Data ONTAP^® Snapshot^® copies to recover anything from a single file to multi-terabyte volumes, in seconds.

Application-Aware Backup and Recovery Solutions for Application and Backup Administrators

· The SnapManager^® management software family streamlines storage management and simplifies configuration, backup, and restore operations.

· SnapProtect^® management software accelerates and simplifies backup and data recovery for shared IT infrastructures.

Compliance

· SnapLock^® compliance software is a flexible data permanence solution for meeting strict data retention regulations or internal IT governance policies.

NetApp SteelStore Cloud-native Backup Solution and Integrated Backup Appliance

SteelStore integrated storage allows customers to securely and efficiently back up their data to both private and public cloud environments, with dramatically lower costs than traditional on-premises backup. In February 2015, we introduced three new SteelStore solutions as Amazon Machine Images (AMIs), which provides an efficient and secure approach to backing up cloud-based workloads. Customers can also choose on-premises SteelStore physical appliances for seamless, secure data protection in the cloud.

FlexArray™ Storage Virtualization Software

We built on 10 years of storage virtualization experience and patented technology with our V-Series platform to create our FlexArray storage virtualization software. It runs on the FAS8020, FAS8040, FAS8060, and FAS8080 EX systems, and customers can purchase and activate FlexArray at any time. FlexArray software virtualizes existing EMC, HP, Hitachi, and NetApp E-Series arrays to unify and streamline IT operations. It helps customers implement a software-defined storage strategy across heterogeneous storage assets by accelerating provisioning and data management. Customers can transform existing arrays to create storage that spans private, public, and hybrid clouds. It reduces capacity requirements on arrays by more than 35% and increases the usefulness of current storage.

Converged Infrastructure

The FlexPod^® solution portfolio combines NetApp storage systems, Cisco Unified Computing System servers, and Cisco Nexus fabric into a single, flexible architecture. FlexPod solutions are designed and validated to reduce deployment time, project risk, and the cost of IT. Options in the FlexPod portfolio include:

· FlexPod Datacenter converged infrastructure includes validated designs for enterprise private clouds as well as software-defined data centers (SDDCs), unified scale-out storage, virtual desktop infrastructure, databases, secure multi-tenancy, business continuity, and data protection.

· FlexPod Express reduces costs and complexity for smaller enterprises by consolidating the entire IT infrastructure on a single, easy-to-manage platform. Customers can reduce the number of servers and the storage capacity needed for applications and standardize their environments to more easily predict budgets and support growth.

· FlexPod Select delivers validated, preconfigured components for rapid deployment of dedicated, high-performance workloads, such as big data, high-performance computing, databases, and data warehouses.

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NetApp Private Storage (NPS) for Cloud

NetApp’s Private Storage for Cloud solutions give customers the freedom to connect to the clouds they want while allowing them to maintain complete control of their data on a dedicated, private NetApp storage system. In this approach, customer data resides on NetApp storage “next to”, rather than “in”, the cloud provider’s environment. The customer-owned NetApp system is co-located in data centers managed by our partner, Equinix. Equinix has data centers located next to major networks and in close proximity to major cloud providers including AWS, Microsoft^® Azure and IBM SoftLayer.

NPS for Cloud eliminates time-consuming, costly data migrations. Customers can turn off connectivity to one cloud and connect to another in minutes, without having to move their data.

OpenStack Contributions

NetApp is a Gold Member of the OpenStack Foundation, which supports creation of an open-source cloud operating system. OpenStack is a global collaboration of developers and cloud computing technologists producing a ubiquitous open-source cloud computing platform for public and private clouds.

Cloud services based on OpenStack^® software, in particular those for enterprise applications, require a robust storage infrastructure that is available, efficient, and protected. NetApp storage integration with OpenStack makes deployment of cloud services simpler, faster, and more scalable. NetApp drivers for OpenStack reduce the integration burden for IT departments deploying cloud services and enable high-value services and tight service-level agreements.

Professional and Support Services

NetApp and our ecosystem of partners deliver a full portfolio of professional and technical services that enable customers to achieve greater business value from NetApp products and solution investments.

Our professional services team and certified services partners have the expertise to assist customers with each phase of their IT lifecycle, from planning next-generation storage systems and deploying new technology to optimizing the operational efficiency of existing infrastructures.

Technical support services ensure our products operate efficiently and benefit from the most up-to-date software to help customers minimize downtime for systems running business-critical applications. Our services organization also provides in-depth guidance and education that include extensive access to our global technical resources and intellectual property. Customers can choose from a number of support options including direct touch, web-based My AutoSupport™ service, training on our product and solutions and an active online community of customers.

NetApp utilizes a global, integrated model to provide consistent service delivery and global support during every phase of the customer engagement, including strategy, assessment and analysis, planning and design, installation, implementation, integration, optimization, ongoing support, and remote management and monitoring.

Sales, Principal Markets, and Distribution Channels

We market and sell our products in numerous countries throughout the world. To increase visibility of NetApp in the broader IT segment, we continue to make investments in our multiyear branding and awareness campaigns.

Our diversified customer base spans industry segments and vertical markets such as energy, financial services, government, high technology, internet, life sciences, healthcare services, manufacturing, media, entertainment, animation, video postproduction, and telecommunications. NetApp focuses primarily on the data management and storage markets. We design our products to meet the needs of our broad customer base – from large enterprises to midsize customers.

NetApp uses a multichannel distribution strategy. We sell our products and services to end-user business customers and service providers through a direct sales force and an ecosystem of partners. We work with a wide range of partners for our customers – including technology partners, value-added resellers, system integrators, OEMs, service providers and distributors. During fiscal 2015, sales through our indirect channels represented 80% of our net revenues. Our global partner ecosystem is critical to NetApp’s growth and success. We are continually strengthening existing partnerships and investing in new ones to ensure we are meeting the evolving needs of our customers.

As of April 24, 2015, our worldwide sales and marketing functions consisted of approximately 7,370 managers, sales representatives, and technical support personnel. We have field sales offices in approximately 50 countries. Sales to customers Arrow Electronics, Inc. and Avnet, Inc., which are distributors, accounted for 23% and 16% of our net revenues, respectively, in fiscal 2015.

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Information about sales to and accounts receivables from our major customers, segment disclosures, foreign operations, and net sales attributable to our geographic regions is included in Note 16 – Segment, Geographic, and Significant Customer Information of the Notes to Consolidated Financial Statements.

Seasonality

We have historically experienced a decline in revenues in the first quarter of our fiscal year, as the sales organization spends time developing new business after higher close rates in the fourth quarter, and because sales to European customers are historically weaker during the summer months. During the second quarter of our fiscal year, we have historically experienced increased sales, driven by the government sector, concurrent with the end of the U.S. federal government’s fiscal year in September, as well as an increase in business from European markets. We derive a majority of our revenue in any given quarter from orders booked in the same quarter. Bookings and revenues typically follow intra-quarter seasonality patterns weighted toward the back end of the quarter.

Backlog

We manufacture products based on a combination of specific order requirements and forecasts of our customers’ demand. Orders are generally placed by customers on an as-needed basis. A substantial portion of our products is sold on the basis of standard purchase orders that are cancellable prior to shipment without penalty. In certain circumstances, purchase orders are subject to change with respect to quantity of product or timing of delivery resulting from changes in customer requirements. Our business is characterized by seasonal and intra-quarter variability in demand, as well as short lead times and product delivery schedules. Accordingly, backlog at any given time might not be a meaningful indicator of future revenue.

Manufacturing and Supply Chain

We have outsourced manufacturing operations to third parties located in Memphis, Tennessee; Olive Branch, Mississippi; Schiphol Airport, The Netherlands; Komarom and Tiszaujvaros, Hungary; Wuxi and Tianjin, China; Taoyuan City, Taiwan; and Singapore. These operations include materials procurement, commodity management, component engineering, test engineering, manufacturing engineering, product assembly, product assurance, quality control, final test, and global logistics. We rely on a limited number of suppliers for materials, as well as several key subcontractors for the production of certain subassemblies and finished systems. We use multiple vendors and have our products manufactured in a number of locations wherever possible to mitigate our supply chain risk. Our strategy has been to develop close relationships with our suppliers, maximizing the exchange of critical information and facilitating implementation of joint quality programs. We use contract manufacturers for the production of major subassemblies and final system configuration. This manufacturing strategy minimizes capital investments and overhead expenditures while creating flexibility for rapid expansion.

We were most recently awarded International Organization for Standardization (ISO) 9001 and ISO 14001 certifications on September 15, 2014, and continue to be ISO 9001 and ISO 14001 certified.

Research and Development

We conduct research and development activities in various locations throughout the world. Total research and development expenses were $919.3 million, $917.3 million and $904.2 million in fiscal 2015, 2014 and 2013, respectively. These costs consist primarily of personnel and related costs incurred to conduct product development activities. Although we develop many of our products internally, we may acquire technology through business combinations or through licensing from third parties when appropriate. We believe that technical leadership is essential to our success, and we expect to continue to commit substantial resources to research and development.

Competition

We compete with many companies in the markets we serve. Some offer a broad spectrum of IT products and services (full-stack vendors) and others offer a more limited set of storage and data management products or services. Our system products and associated software portfolio mainly compete with storage system products and data management software from Dell, EMC, HDS, HP, and IBM. In the OEM market we compete against many of those same companies, as well as Dot Hill and Seagate, through its acquisition of Xyratex.

By extending our flash and software-defined storage offerings, we are competing in new segments with both traditional competitors and new competitors. Smaller, emerging storage vendors include Nimbus Data, Pure Storage, Skyera, Solidfire, and Violin Memory in the all-flash array segment. They include NexGen, Nimble Storage, Tegile, and Tintri in the hybrid flash array segment. The longer-term potential and competitiveness of these emerging vendors remains to be determined. In cloud and converged infrastructure, we also compete with large well-established competitors, including EMC, HP, and IBM. 

An increase in industry consolidation might result in stronger competitors as sole-source vendors for customers. In addition, current and potential competitors have established or might establish cooperative relationships among themselves or with third parties,

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including some of our partners. It is possible that new competitors or alliances among competitors might emerge and rapidly acquire significant market share.

The IT storage market is also experiencing a change in the way storage services are consumed due to technology transitions and changing economic and business environments. Customers now have the option of engaging with cloud service providers to provide storage as an operating expense rather than storage systems for their data centers. Recent technology trends, such as the emergence of hosted (or cloud) storage, software as a service (SaaS) and flash storage are driving significant changes in storage architectures and solution requirements. While the short- and long-term impact of these evolving trends cannot be predicted, NetApp is confident that our customers recognize the value in our cloud strategy. Our strategy includes building relationships with these new classes of providers, and to date, we have established relationships with more than 300 cloud service providers and hyperscaler providers AWS, Google, IBM SoftLayer and Microsoft Azure.

We consider innovation and our technology partnerships to be key to our competitive differentiation. We believe our competitive advantage also includes the nature of the relationships we form with our customers and partners worldwide. We strive to deliver an outstanding experience in every interaction we have with our customers and partners through our product, service, and support offerings, which enable us to provide our customers with a full range of expertise before, during, and after their purchase.

Proprietary Rights

Over the years, NetApp has been widely recognized for its innovation including recognition as one of the “World’s Most Innovative Companies” (Forbes^®), a top 300 United States patent holder (Intellectual Property Owners Association) and one of the best “Quality Over Quantity” patent portfolios in its industry (IEEE Spectrum^®). We generally rely on patent, copyright, trademark, trade secret and contract laws to establish and maintain our proprietary rights in our technology and products. While our intellectual property rights are important to our success, we believe that our business as a whole is not materially dependent on any particular patent, trademark, copyright, license or other intellectual property right. We have been granted or own by assignment over 1,750 patents issued by, and have over 680 patent applications pending with, the U.S. Patent and Trademark Office, as well as a corresponding number of international patents and patent applications. While the durations of our patents vary, we believe that the durations of our patents are adequate relative to the expected lives of our products.

NetApp, the NetApp logo, Go Further, Faster, AltaVault, ASUP, AutoSupport, Campaign Express, Cloud ONTAP, Clustered Data ONTAP, Customer Fitness, Data ONTAP, DataMotion, Fitness, Flash Accel, Flash Cache, Flash Pool, FlashRay, FlexArray, FlexCache, FlexClone, FlexPod, FlexScale, FlexShare, FlexVol, FPolicy, GetSuccessful, LockVault, Manage ONTAP, Mars, MetroCluster, MultiStore, NetApp Insight, OnCommand, ONTAP, ONTAPI, RAID DP, RAID-TEC. SANtricity, SecureShare, Simplicity, Simulate ONTAP, SnapCenter, Snap Creator, SnapCopy, SnapDrive, SnapIntegrator, SnapLock, SnapManager, SnapMirror, SnapMover, SnapProtect, SnapRestore, Snapshot, SnapValidator, SnapVault, StorageGRID, Tech OnTap, Unbound Cloud, WAFL and other names are trademarks or registered trademarks of NetApp Inc., in the United States and/or other countries.

We generally enter into confidentiality agreements with our employees, resellers, customers, and suppliers. In addition, through various licensing arrangements, we receive certain rights to intellectual property of others. We expect to maintain current licensing arrangements and to secure licensing arrangements in the future, as needed and to the extent available on reasonable terms and conditions, to support continued development and sales of our products and services. Some of these licensing arrangements require or might require royalty payments and other licensing fees. The amount of these payments and fees might depend on various factors, including but not limited to the structure of royalty payments; offsetting considerations, if any; and the degree of use of the licensed technology.

The industry in which we compete is characterized by rapidly changing technology, a large number of patents, and frequent claims and related litigation regarding intellectual property rights, and we may be exposed to various risks related to such claims or legal proceedings. If we are unable to protect our intellectual property, we might be subject to increased competition that could materially and adversely affect our operating results.

Environmental Disclosure

We are committed to the success of our customers and partners, to delivering value to our stockholders, and to positively affecting the communities where our employees work and live. We firmly believe that we can accomplish these objectives concurrently with our commitment to sustainability. We are committed to the prevention of pollution; efficient use of natural resources; and minimizing, relative to the growth of the company, the environmental impacts from our operations, products, and services, as well as complying with laws and regulations related to these areas. Our environmental management system provides the framework for setting, monitoring, and continuously improving our environmental goals and objectives.

We are voluntarily measuring, monitoring, and publicly reporting our scope 1 and scope 2 greenhouse gas emissions and participate in the Carbon Disclosure Project (CDP). The CDP is a global standardized mechanism by which companies report their greenhouse gas emissions to institutional investors. We have established employee commuter programs and education and awareness campaigns, and we continuously seek to optimize the energy efficiency of our buildings, labs, and data centers. At both the global and regional/state levels, various laws and regulations have been implemented or are under consideration to mitigate the effects of climate

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change caused by greenhouse gas emissions. Environmental laws are complex, change frequently, and have tended to become more stringent over time. It is often difficult to estimate the future impact of environmental matters. Based on current information, we believe that our primary risk related to climate change is the risk of increased energy costs. We are not subject to a cap and trade system or any other mitigation measures that would be material to our operations in the near future. Additionally, we have implemented disaster recovery and business resiliency measures to mitigate the physical risks our facilities, business, and supply chain might face as a consequence of severe weather-/climate-related phenomena such as earthquakes, floods, droughts, and other such natural occurrences.

We are also subject to other federal, state, and local regulations regarding workplace safety and protection of the environment. Various international, federal, state, and local provisions regulate the use and discharge of certain hazardous materials used in the manufacture of our products. Failure to comply with environmental regulations in the future could cause us to incur substantial costs or subject us to business interruptions. We believe we are substantially compliant with all applicable environmental laws. All of our products meet the requirements of the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH); Waste Electrical and Electronic Equipment (WEEE); Restriction of Hazardous Substances (RoHS); and China RoHS directives. We have maintained an environmental management system since December 2004. As part of ISO 14001 requirements, we set local environmental performance goals such as reducing energy use per square foot and minimizing waste generated on site, that are aligned with our overall corporate strategy. We also conduct an annual review and third-party verified audits of our operations, and we monitor environmental legislation and requirements to help make sure we are taking necessary measures to remain in compliance with applicable laws, not only in our operations but also for our products.

Employees

As of April 24, 2015, we had approximately 12,810 employees, of which 4,380 were in sales and marketing, 2,990 were in customer support, 3,840 were in research and development, 190 were in manufacturing operations and 1,410 were in finance and administration. None of our employees are represented by a labor union and we consider relations with our employees to be good. Competition for technical personnel in the industry in which we compete is intense. We believe that our future success depends in part on our continued ability to hire, assimilate, and retain qualified personnel. To date, we believe that we have been successful in recruiting qualified employees, but there is no assurance that we will continue to be successful in the future.

Executive Officers

Our executive officers and their ages as of June 1, 2015, are as follows:

Name	Age	Position
George Kurian	48	Chief Executive Officer
Nicholas R. Noviello	46	Executive Vice President of Finance and Operations and Chief Financial Officer
Robert E. Salmon	54	President
Matthew K. Fawcett	47	Senior Vice President, General Counsel and Secretary

George Kurian was appointed chief executive officer on June 1, 2015. From September 2013 to May 2015, he was executive vice president of product operations, overseeing all aspects of technology strategy, product and solutions development across our product portfolio. Mr. Kurian joined NetApp in April 2011 as the senior vice president of the storage solutions group and was appointed to senior vice president of the Data ONTAP group in December 2011. Prior to NetApp, from 2002 to 2011, Mr. Kurian was vice president and general manager of the application networking and switching technology group at Cisco Systems. From 1999 to 2002, Mr. Kurian was the vice president of product management and strategy at Akamai Technologies, a management consultant with McKinsey and Company, and led software engineering and product management teams at Oracle Corporation. Mr. Kurian holds a BS degree in electrical engineering from Princeton University and an MBA from Stanford University.

Nicholas R. Noviello is executive vice president of finance and operations and chief financial officer. He is responsible for all financial and operational aspects of the company including financial operations, customer leasing, investor relations, workplace resources, IT, manufacturing operations, quoting, sales order processing and fulfillment operations. From January 2012 to April 2014, he was executive vice president and chief financial officer. Mr. Noviello joined NetApp in January 2008 as vice president, finance and controller. He was named senior vice president finance and corporate controller in April 2008 and senior vice president finance and global controller in November 2010. Before joining NetApp, Mr. Noviello spent eight years at Honeywell International, where he was chief financial officer of two global business units, managed investor relations, and was a leader on the corporate mergers and acquisitions team. Prior to Honeywell, Mr. Noviello led mergers and acquisitions for Monarch Dental Corporation for two years and spent seven years at PricewaterhouseCoopers. Mr. Noviello holds a BS degree in business administration from Boston University and an MS degree in taxation from Fairleigh Dickinson University, and he is a certified public accountant.

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Robert E. Salmon joined NetApp in January 1994 and was appointed president in April 2014, overseeing field operations, global marketing, and customer success operations. From December 2005 to April 2014, Mr. Salmon was executive vice president, field operations. Mr. Salmon served as the company’s executive vice president of worldwide sales from September 2004 to December 2005. From August 2003 to September 2004, Mr. Salmon served as our senior vice president of worldwide sales, and from May 2000 to August 2003, Mr. Salmon served as our vice president of North American sales. Prior to his tenure at NetApp, Mr. Salmon spent nearly 10 years with Sun Microsystems, a supplier of network computing systems, and Data General Corporation, a manufacturer of multiuser computer systems. Mr. Salmon graduated from California State University, Chico with a BS degree in computer science.

Matthew K. Fawcett joined the company in September 2010 as senior vice president, general counsel, and secretary. Prior to joining NetApp, from 1999 to August 2010, Mr. Fawcett served in various legal positions at JDS Uniphase Corporation, an optical components company, including as senior vice president, general counsel, and corporate secretary. Prior to joining JDSU, Mr. Fawcett was counsel at Fujitsu and worked in private practice at Morrison & Foerster LLP. Mr. Fawcett is a member of the boards of the Association of Corporate Counsel and the Law Foundation of Silicon Valley. Mr. Fawcett holds a BA degree from the University of California at Berkeley and a JD degree from the University of California at Los Angeles.

Additional Information

Our Internet address is www.netapp.com. We make available through our Internet website our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, amendments to those reports and other documents filed or furnished pursuant to the Exchange Act of 1934, as soon as reasonably practicable after we electronically file such materials with, or furnish them to, the SEC.

The SEC maintains an Internet site (www.sec.gov) that contains reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC. The public also may read and copy these filings at the SEC’s Public Reference Room at 100 F Street N.E., Washington, DC 20549. Information about this Public Reference Room is available by calling (800) SEC-0330.

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Item 1A. Risk Factors

The following risk factors and other information included elsewhere in this Annual Report on Form 10-K should be considered and understood in the context of the following risk factors, which describe circumstances that may materially harm our future business, operating results or financial condition. The following discussion reflects our current judgment regarding the most significant risks we face. These risks can and will change in the future.

Our business may be harmed by trends in the storage market or if we are unable to keep pace with rapid industry, technological and market changes.

Our industry and the markets in which we compete have historically experienced significant growth due to the increase in the demand for storage solutions by consumers, enterprises and government bodies around the world, and the resultant purchases of storage solutions to address this demand. However, despite continued data growth, the storage market did not experience growth in calendar years 2013 and 2014 due to a combination of customers delaying purchases in the face of technology transitions, increased storage efficiency, and changing economic and business environments. Recent technology trends, such as the emergence of cloud storage, software as a service (SaaS), flash storage and converged architectures are driving significant changes in storage architectures and solution requirements. As a result of these and other factors discussed in the report, our revenue may grow at a slower rate than in past periods, or may decline as it did in fiscal years 2014 and 2015, on a year-over year basis. The future impact of these trends on both short-term and long-term growth patterns is uncertain. If the general historical rate of industry growth declines, if the growth rates of the specific markets in which we compete decline, and/or if the consumption model of storage changes and our new and existing products and solutions do not receive customer acceptance, our business, operating results and financial condition could suffer.

If we are unable to develop, introduce and gain market acceptance for clustered Data ONTAP-based products or other new products while managing the transition from older products, or if we cannot provide the expected level of quality, service and support for our new products, our business, operating results and financial condition could be harmed.

Our future growth depends upon the successful development and introduction of new hardware and software products. Due to the complexity of storage subsystems and appliances and the difficulty in gauging the engineering effort required to produce new products, such products are subject to significant technical and quality control risks.

We are currently devoting considerable effort and resources to develop, introduce and gain customer acceptance for our clustered Data ONTAP (cDOT)-based products. cDOT is our next generation storage operating system for our core products and represents a fundamental and revolutionary change to our solution architecture. Over time, our goal is to replace our Data ONTAP 7-Mode technology with cDOT and, consequently, we anticipate that a majority of our revenues will ultimately derive from cDOT. We face considerable challenges as we continue to develop and market cDOT, including, without limitation, cost and complexity associated with migrating customer data and applications from legacy systems to cDOT-based systems, developing additional features for cDOT currently available with Data ONTAP 7-Mode and potentially required by our customers, increasing sales of cDOT through our channel and maintaining service, support and customer relationships as we replace Data ONTAP 7-Mode with cDOT.

If we are unable, for technological, customer reluctance or other reasons, to develop, introduce and gain market acceptance for cDOT, or any other new products, as and when required by the market and our customers, our business, operating results and financial condition could be materially and adversely affected.

New or additional product introductions, including new software and flash product offerings, such as Cloud ONTAP, StorageGRID Webscale, all flash FAS, FlashRay and SteelStore, subject us to additional financial and operational risks, including our ability to forecast customer preferences and/or demand, our ability to expand production capacity to meet the demand for new products, our ability to successfully manage the transition from older products, and our ability to forecast the impact of customers’ demand for new products or the products being replaced. In addition, as new or enhanced products are introduced, we must also avoid excessive levels of older product inventories and related components and ensure that enough supplies of new products can be delivered to meet customers’ demands. Further risks inherent in new product introductions include the uncertainty of price-performance relative to products of competitors, competitors’ responses to the introductions, the desire by customers to evaluate new products for extended periods of time and our partners’ investment in selling our new products. If these risks are not managed effectively, we could experience material risks to our operations, financial condition and business model.

As we enter new or emerging markets, we will likely increase demands on our service and support operations and may be exposed to additional competition. We may not be able to provide products, service and support to effectively compete for these market opportunities.

Our sales and distribution structure makes forecasting revenues difficult and, if disrupted, could harm our operating results.

Our business and sales models make revenues difficult to forecast. We sell to a variety of customers, with a corresponding variety of sales cycles. In addition, the majority of our sales are made and/or fulfilled indirectly through channel partners, including value-added resellers, systems integrators, distributors, original equipment manufacturers (OEMs) and strategic business partners.

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During fiscal 2015, revenues generated from sales through our indirect channel accounted for 80% of net revenues. This structure significantly complicates our ability to forecast future revenue, particularly within any particular fiscal quarter or year. Moreover, our relationships with our indirect channel partners are critical to our success. The loss of one or more of our key indirect channel partners in a given geographic area or the failure of our channel partners to promote our products could harm our operating results, as qualifying and developing new indirect channel partners typically require a significant investment of time and resources before acceptable levels of productivity are met. If we fail to maintain our relationships with our indirect channel partners, if their financial condition, business or customer relationships were to weaken, if they fail to comply with legal or regulatory requirements, or if we were to cease business with them for these or other reasons, our business, operating results and financial condition could be harmed.

Continuing uncertain economic and political conditions restrict our visibility and may harm our operating results, including our revenue growth and profitability.

The continuing global economic uncertainty and political and fiscal challenges in the United States (U.S.) and abroad due to the financial and fiscal crises of recent years have, among other things, limited our ability to forecast future demand for our products, contributed to increased periodic volatility in the computer, storage, and networking industries at large, as well as the information technology (IT) market, and could constrain future access to capital for our suppliers, customers and partners. The impacts of these circumstances are global and pervasive, and the timing and nature of any ultimate resolution of these matters remain highly uncertain. Additionally, budgetary constraints and shifts in government spending priorities have caused, and may in the future again cause, governments, including the U.S. government, to decrease purchases of storage equipment. Consequently, we expect these concerns to challenge our business for the foreseeable future, and potentially cause harm to our operating results. Such conditions have resulted, and may in the future again result, in failure to meet our forecasted financial expectations and to achieve historical levels of revenue growth.

Our quarterly operating results may fluctuate materially, which could harm our common stock price.

Our operating results have fluctuated in the past and will continue to do so, sometimes materially. All of the matters discussed in this Risk Factors section could impact our operating results in any fiscal quarter or year. In addition to those matters, we face the following issues, which could impact our quarterly results:

· Seasonality, such as our historical seasonal decline in revenues in the first quarter of our fiscal year and seasonal increase in revenues in the second quarter of our fiscal year, with the latter due in part to the impact of the U.S. federal government’s September 30 fiscal year end on the timing of its orders; and

· Linearity, such as our historical intra-quarter bookings and revenue pattern in which a disproportionate percentage of each quarter’s total bookings and related revenue occur in the last month of the quarter.

If our operating results fall below our forecasts and the expectations of public market analysts and investors, the trading price of our common stock may decline.

Our gross margins vary.

Our gross margins reflect a variety of factors, including competitive pricing, component and product design, the volume and relative mix of product, software maintenance, hardware maintenance and other services revenues. Increased component costs, increased pricing pressures, the relative and varying rates of increases or decreases in component costs and product prices, changes in product, software maintenance, hardware maintenance and other services revenue mix or decreased volume could harm our revenues, gross margins or earnings. Our gross margins are also impacted by the cost of any materials that are of poor quality and our sales and distribution activities, including, without limitation, pricing actions, rebates, sales initiatives and discount levels, and the timing of service contract renewals.

The costs of third-party components comprise a significant portion of our product costs. While we generally have been able to manage our component and product design costs, we may have difficulty managing these costs if supplies of certain components become limited or component prices increase. Any such limitation could result in an increase in our product costs. An increase in component or design costs relative to our product prices could harm our gross margins and earnings.

We often incur expenses before we receive related benefits, and expenses may be difficult to reduce quickly if demand declines.

We base our expense levels in part on future revenue expectations and a significant percentage of our expenses is fixed. It is difficult to reduce our fixed costs quickly, and if revenue levels are below our expectations, operating results could be adversely impacted. During periods of uneven growth or decline, we may incur costs before we realize the anticipated related benefits, which could also harm our operating results. We have made, and will continue to make, significant investments in engineering, sales, service and support, marketing and other functions to support and grow our business. We are likely to recognize the costs associated with these investments earlier than some of the related anticipated benefits, such as revenue growth, and the return on these investments may be lower, or may develop more slowly, than we expect, which could harm our business, operating results and financial condition.

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Increasing competition and industry consolidation could harm our business and operating results.

The storage and data management markets are intensely competitive and are characterized by rapidly changing technology and fragmentation. We compete with many companies in the markets we serve. Some offer a broad spectrum of IT products and services (full-stack vendors) and others offer a more limited set of storage and data management products or services. Several of our key competitors have greater financial resources and offer a more diverse portfolio of products and services. By extending our flash and software-defined storage offerings, we are competing in new segments with both traditional competitors and new competitors, particularly smaller emerging storage vendors. The longer-term potential and competitiveness of these emerging vendors remains to be determined. In cloud and converged infrastructure, we also compete with large well-established competitors.

For information regarding our competitors, see the section entitled “Competition” contained in Item 1 – Business of Part I of this Annual Report on Form 10-K. It is possible that new competitors or alliances among competitors might emerge and rapidly acquire significant market share.

An increase in industry consolidation might result in stronger competitors that are better able to compete as sole-source vendors for customers. In addition, current and potential competitors have established or might establish cooperative relationships among themselves or with third parties, including some of our partners.

If we are unable to maintain and develop relationships with strategic partners, our revenues may be harmed.

Our growth strategy includes developing and maintaining strategic partnerships with major third-party software and hardware vendors to integrate our products into their products and also co-market our products with them. A number of these strategic partners are industry leaders that offer us expanded access to segments of the storage and data management markets. However, there is intense competition for attractive strategic partners, and these relationships may not be exclusive, may not generate significant revenues and may be terminated on short notice. For instance, some of our partners are also partnering with our competitors, which may increase the availability of competing solutions and harm our ability to grow our relationships with those partners. Moreover, some of our partners, particularly large, more diversified technology companies, are also competitors, complicating our relationships. If we are unable to establish new partnerships or maintain existing partnerships, if our strategic partners favor their relationships with other vendors in the storage industry or if our strategic partners increasingly compete with us, we could experience lower than expected revenues, suffer delays in product development, or experience other harm to our business, operating results and financial condition.

If we do not achieve forecasted bookings in any quarter, our financial results could be harmed.

We derive a majority of our revenues in any given quarter from orders booked in the same quarter. Bookings typically follow intra-quarter seasonality patterns weighted toward the back end of the quarter. If we do not achieve the level, timing and mix of bookings consistent with our quarterly targets and historical patterns, or if we experience cancellations of significant orders, our financial results could be harmed.

A portion of our revenues is generated by large, recurring purchases from various customers, resellers and distributors. A loss, cancellation or delay in purchases by any of these parties has negatively affected us in the past, and in the future could negatively affect our revenues.

A significant portion of our net revenues are generated through sales to a limited number of distributors. We generally do not enter into binding purchase commitments with our customers, resellers and distributors for extended periods of time, and thus we may not be able to continue to receive large, recurring orders from these customers, resellers or distributors. For example, our reseller agreements generally do not require minimum purchases, and our customers, resellers and distributors can stop purchasing and marketing our products at any time. In addition, unfavorable economic conditions may negatively impact the solvency of our customers, resellers and distributors or the ability of such customers, resellers and distributors to obtain credit to finance purchases of our products. If any of our key customers, resellers or distributors changes its pricing practices, reduces the size or frequency of its orders for our products, or stops purchasing our products altogether, our operating results and financial condition could be materially adversely impacted.

We rely on a limited number of suppliers for critical product components.

We rely on a limited number of suppliers for drives and other components utilized in the assembly of our products, including certain single source suppliers, which has subjected us, and could in the future subject us to price rigidity, periodic supply constraints, and the inability to produce our products with the quality and in the quantities demanded. Consolidation among suppliers, particularly within the semiconductor and disk drive industries, has contributed to price rigidity and may in the future create supply constraints. When industry supply is constrained, our suppliers may allocate volumes away from us and to our competitors, all of which rely on many of the same suppliers as we do. Accordingly, our operating results may be harmed.

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Any disruption to our supply chain could materially harm our business, operating results and financial condition.

We do not manufacture our products or their components. Instead, we rely on third parties to make our products and critical components, such as disk drives, as well as for associated logistics. Our lack of direct responsibility for, and control over, these elements of our business, as well as the diverse international geographic locations of our manufacturing partners and suppliers, creates significant risks for us, including, among other things:

· Limited ability to control the quality, quantity and cost of our products or of their components;

· The potential for binding price or purchase commitments with our suppliers that are higher than market rates;

· Limited ability to adjust production volumes in response to our customers’ demand fluctuations;

· Labor and political unrest at facilities we do not operate or own;

· Geopolitical disputes disrupting our supply chain;

· Business, legal compliance, litigation and financial concerns affecting our suppliers or their ability to manufacture and ship our products in the quantities, quality and manner we require; and

· Disruptions due to floods, earthquakes, storms and other natural disasters, particularly in countries with limited infrastructure and disaster recovery resources.

Such risks have in the past and could again in the future subject us to supply constraints, price increases and minimum purchase requirements and our business, operating results and financial condition could be harmed. The risks associated with our out-sourced manufacturing model are particularly acute when we transition products to new facilities or manufacturers, introduce and increase volumes of new products or qualify new contract manufacturers or suppliers, at which times our ability to manage the relationships among us, our manufacturing partners and our component suppliers, becomes critical. New manufacturers, products, components or facilities create increased costs and risk that we will fail to deliver high quality products in the required volumes to our customers. Any failure of a manufacturer or component supplier to meet our quality, quantity or delivery requirements in a cost-effective manner will harm our business, operating results and customer relationships.

Due to the global nature of our business, risks inherent in our international operations could materially harm our business.

A significant portion of our operations are located, and a significant portion of our revenues are derived, outside of the U.S. In addition, a substantial portion of our products are manufactured outside of the U.S., and we have research and development and service centers overseas. Accordingly, our business and our future operating results could be adversely affected by factors affecting our international operations, but not experienced in the U.S., including, among other things, local political or economic conditions, trade protection and export and import requirements, local labor conditions, transportation costs, government spending patterns, acts of terrorism, international conflicts and natural disasters in areas with limited infrastructure. In addition, due to the global nature of our business, we are subject to complex legal and regulatory requirements in the U.S. and the foreign jurisdictions in which we operate and sell our products, including antitrust and anti-competition laws, rules and regulations, and regulations related to data privacy. We are also subject to the potential loss of proprietary information due to piracy, misappropriation, or laws that may be less protective of our intellectual property rights than U.S. laws. Such factors could have an adverse impact on our business, operating results and financial condition.

We face exposure to adverse movements in foreign currency exchange rates as a result of our international operations. These exposures may change over time as business practices evolve, and they could have a material adverse impact on our financial results and cash flows. We utilize forward and option contracts in an attempt to reduce the adverse earnings impact from the effect of exchange rate fluctuations on certain assets and liabilities as well as certain anticipated foreign currency cash flows on a short-term basis. Our hedging strategies may not be successful, and currency exchange rate fluctuations could have a material adverse effect on our operating results. In addition, our foreign currency exposure on assets and liabilities for which we do not hedge could have a material impact on our operating results in periods when the U.S. dollar significantly fluctuates in relation to unhedged non-U.S. currencies in which we transact business.

Additional risks inherent in our international business activities generally include, among others, longer accounts receivable payment cycles and difficulties in managing international operations.

Moreover, in many foreign countries, particularly in those with developing economies, it is common to engage in business practices that are prohibited by our internal policies and procedures, or U.S. laws and regulations applicable to us, such as the Foreign Corrupt Practices Act. There can be no assurance that all of our employees, contractors and agents, as well as those companies to which we outsource certain of our business operations, will comply with these policies, procedures, laws and/or regulations. Any such

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violation could subject us to fines and other penalties, which could have a material adverse effect on our business, operating results and financial condition.

Changes in our effective tax rate resulting from adverse outcomes from examination of our income tax returns and/or changes in the tax regimes and related government policies and regulations in the countries in which we operate could adversely affect our results.

Our effective tax rate is influenced by a variety of factors, many of which are outside of our control. These factors include among other things, fluctuations in our earnings and financial results in the various countries and states in which we do business, the outcome of income tax audits and changes to the tax laws in such jurisdictions. Any of these factors could materially impact our operating results.

We receive significant tax benefits from sales to our non-U.S. customers. These benefits are contingent upon existing tax laws and regulations in the U.S. and in the countries in which our international operations are located. Future changes in domestic or international tax laws and regulations could adversely affect our ability to continue to realize these tax benefits. We have not provided for U.S. federal and state income taxes or foreign withholding taxes that may result from future remittances of undistributed earnings of foreign subsidiaries. President Obama and the U.S. Congress have called for comprehensive tax reform which, among other things, might change certain U.S. tax rules impacting the way U.S. based multinationals are taxed on foreign income. Further, recent developments, including the European Commission’s investigations on illegal state aid as well as the Organisation for Economic Co-operation and Development project on Base Erosion and Profit Shifting may result in changes to long-standing tax principles, which could adversely affect our effective tax rate or result in higher cash tax liabilities.

We are currently undergoing income tax audits in the U.S. and several foreign tax jurisdictions, The U.S. and foreign tax authorities have questioned our intercompany transfer pricing arrangements during these audits. In recent years, several other U.S. companies have had their transfer pricing arrangements challenged as part of Internal Revenue Service (IRS) examinations, which have resulted in material proposed assessments and/or litigation with respect to those companies. If the ultimate determination of income taxes or at-source withholding taxes assessed under the current IRS audits or audits being conducted in any other tax jurisdiction results in an amount in excess of the tax provision we have recorded or reserved for, our operating results, cash flows and financial condition would be adversely affected.

Our effective tax rate could also be adversely affected by different and evolving interpretations of existing law or regulations, which in turn would negatively impact our operating and financial results as a whole. Additionally, our effective tax rate could also be adversely affected if there is a change in international operations and how the operations are managed and structured. The price of our common stock could decline to the extent that our financial results are materially affected by an adverse change in our effective tax rate.

If our products are defective, or are perceived to be defective as a result of improper use or maintenance, our gross margins, operating results and customer relationships may be harmed.

Our products are complex. We have experienced in the past, and expect to experience in the future, quality issues. Quality risk is most acute when we are introducing new products. Quality issues have and could again in the future cause customers to experience outages or disruptions in service, data loss or data corruption. If we fail to remedy a product defect, we may experience a failure of a product line, temporary or permanent withdrawal from a product or market, damage to our reputation, loss of revenue, inventory costs or product reengineering expenses and higher ongoing warranty and service costs, and these occurrences could have a material impact on our gross margins, business and operating results. In addition, we exercise little control over how our customers use or maintain our products, and in some cases improper usage or maintenance could impair the performance of our products, which could lead to a perception of a quality issue. Customers and we may experience losses that may result from or are alleged to result from defects in our products, which could subject us to claims for damages, including consequential damages.

If a data center or other third-party who relies on our products experiences a disruption in service or a loss of data, such disruption could be attributed to the quality of our products, thereby causing financial or reputational harm to our business.

Our clients, including data centers, SaaS, cloud computing and Internet infrastructure and bandwidth providers, rely on our products for their data storage needs. Our clients may authorize third-party technology providers to access their data on our systems. Because we do not control the transmissions between our clients, their customers, and third-party technology providers, or the processing of such data by third-party technology providers, we cannot ensure the complete integrity or security of such transmissions or processing. Errors or wrongdoing by clients, their customers, or third-party technology providers resulting in security breaches may be attributed to us.

A failure or inability to meet our clients’ expectations with respect to security and confidentiality through a disruption in the services provided by these third-party vendors, or the loss of data stored by such vendors, could result in financial or reputational harm to our business to the extent that such disruption or loss is caused by, or perceived by our customers to have been caused by, defects in our products. Moreover, the risk of reputational harm may be magnified and/or distorted through the rapid dissemination of

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information over the Internet, including through news articles, blogs, chat rooms, and social media sites. This may affect our ability to retain clients and attract new business.

If a cybersecurity or other security breach occurs on our systems or on our end user customer systems, or if stored data is improperly accessed, customers may reduce or cease using our solutions, our reputation may be harmed and we may incur significant liabilities.

We store and transmit sensitive and proprietary data related to our products, our employees, customers, clients and partners (including third-party vendors such as data centers and providers of SaaS, cloud computing, and Internet infrastructure and bandwidth), and their respective customers, including intellectual property, books of record and personally identifiable information. There are numerous and evolving risks to cybersecurity and privacy, including criminal hackers, state-sponsored intrusions, industrial espionage, human error and technological vulnerabilities. Cybersecurity incidents or other security breaches could result in unauthorized access to, or loss or unauthorized disclosure of, such information and litigation, indemnity obligations, government investigations and other possible liabilities, as well as negative publicity, which could damage our reputation and public perception of the security and reliability of our products. Additionally, our clients and customers use our platforms for the transmission and storage of sensitive data. We do not regularly monitor or review the information or content that our clients and their customers upload and store, and, therefore, we have no direct control over the substance of the information or content stored within our platforms. Therefore, if employees, clients, partners or their respective customers use our platforms for the transmission or storage of personally identifiable or other sensitive information and our security measures are breached as a result of third-party action, employee error, malfeasance, stolen or fraudulently obtained log-in credentials or otherwise, our reputation could be damaged, our business may be harmed and we could incur significant liabilities. Because techniques used to obtain unauthorized access or to sabotage systems change frequently and often are not recognized until launched against a target, we may be unable to anticipate these techniques or to implement adequate preventative measures. As we continue to increase our client base and expand our brand, we may become more of a target for third parties seeking to compromise our security systems.

Many jurisdictions have enacted laws requiring companies to notify individuals of data security breaches involving certain types of personal data. These mandatory disclosures regarding security breaches often lead to widespread negative publicity. Moreover, the risk of reputational harm may be magnified and/or distorted through the rapid dissemination of information over the Internet, including through news articles, blogs, chat rooms, and social media sites. Any security breach, whether actual or perceived, could harm our reputation, erode customer confidence in the effectiveness of our data security measures, negatively impact our ability to attract new customers, cause existing customers to elect not to renew their support contracts, or subject us to third-party lawsuits, regulatory fines or other action or liability, which could materially and adversely affect our business and operating results.

There can be no assurance that the limitations of liability in our contracts would be enforceable or adequate or would otherwise protect us from any such liabilities or damages with respect to any particular claim. Our existing general liability insurance coverage and coverage for errors and omissions may not continue to be available on acceptable terms or may not be available in sufficient amounts to cover one or more large claims, or our insurers may deny coverage as to any future claim. The successful assertion of one or more large claims against us that exceeds available insurance coverage, or the occurrence of changes in our insurance policies, including premium increases or the imposition of large deductible or co-insurance requirements, could have a material adverse effect on our business, operating results and financial condition.

If we are unable to attract and retain qualified personnel, our business, operating results and financial condition could be harmed.

Our continued success depends, in part, on our ability to hire and retain qualified personnel and to preserve the key aspects of our corporate culture. Because our future success is dependent on our ability to continue to enhance and introduce new products, we are particularly dependent on our ability to hire and retain qualified engineers. In addition, to increase revenues, we will be required to develop a larger and more effective sales force and support infrastructure to achieve adequate customer coverage. Competition for qualified employees, particularly in Silicon Valley, is intense. The loss of the services of a significant number of our employees, or our inability to hire qualified management and skilled personnel, particularly engineers, salespeople and key executive management, could be disruptive to our development efforts, sales results, business relationships and/or our ability to execute our business plan and strategy on a timely basis and could materially and adversely affect our operating results. Our Board of Directors is actively conducting a comprehensive search for a Chief Executive Officer. The prospective change in the office of the Chief Executive Officer, and any protracted delay in identifying that individual, may cause disruption to our business and could adversely affect our business and operating results.

Equity grants are a critical component of our current compensation programs. If we reduce, modify or eliminate our equity programs, we may have difficulty attracting and retaining critical employees.

In addition, because of the structure of our cash and equity incentive compensation plans, we may be at increased risk of losing employees at certain times. For example, the retention value of our compensation plans decreases after the payment of annual bonuses or the vesting of equity awards.

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Reduced U.S. government demand could materially harm our business and operating results. In addition, we could be harmed by claims that we have or a channel partner has failed to comply with regulatory and contractual requirements applicable to sales to the U.S. government.

The U.S. government is an important customer for us. However, government demand is uncertain, as it is subject to political and budgetary fluctuations and constraints. Events such as the U.S. federal government shutdown in October 2013 and continued uncertainty regarding the U.S. budget and debt levels, has increased demand uncertainty for our products, and in our fiscal 2014 resulted in lower sales to these customers. If the U.S. government or an individual agency or multiple agencies within the U.S. government continue to reduce or shift their IT spending patterns, our revenues and operating results may be harmed.

Selling our products to the U.S. government, whether directly or through channel partners, also subjects us to certain regulatory and contractual requirements. Failure to comply with these requirements by either us or our channel partners could subject us to investigations, fines, and other penalties, which could materially harm our operating results and financial condition. As an example, the United States Department of Justice (DOJ) and the General Services Administration (GSA) have in the past pursued claims against and financial settlements with IT vendors, including us and several of our competitors and channel partners, under the False Claims Act and other statutes related to pricing and discount practices and compliance with certain provisions of GSA contracts for sales to the federal government. Although the DOJ and GSA currently have no claims pending against us, we could face claims in the future. Violations of certain regulatory and contractual requirements could also result in us being suspended or debarred from future government contracting. Any of these outcomes could have a material adverse effect on our business, operating results and financial condition.

A repatriation of cash held by our foreign subsidiaries to fund U.S. operations, strategic opportunities or debt service may subject us to a significant tax liability.

As of April 24, 2015, $4.7 billion of cash, cash equivalents and short-term investments was held by our foreign subsidiaries. Under current law, repatriation of this cash may trigger significant adverse tax consequences in the U.S. As a result, if the cash generated by our domestic operations is not sufficient to fund our domestic operations and our broader corporate initiatives, such as stock repurchases, dividends, acquisitions, and other strategic opportunities, and to service our outstanding indebtedness, we may need to raise additional funds through public or private debt or equity financings, or we may need to obtain new credit facilities to the extent we choose not to repatriate our overseas cash. Such additional financing may not be available on terms favorable to us, or at all, and any new equity financings or offerings would dilute our current stockholders’ ownership. Furthermore, lenders may not agree to extend us new, additional or continuing credit. If adequate funds are not available, or are not available on acceptable terms, we may be forced to repatriate our foreign-held cash and incur a significant tax expense. In any such case, our business, operating results or financial condition could be adversely impacted.

Our success depends upon our ability to effectively plan and manage our resources and restructure our business in response to changing market conditions and market demand for our products, and such actions may have an adverse effect on our financial and operating results.

Our ability to successfully offer our products and services in a rapidly evolving market requires an effective planning, forecasting, and management process to enable us to effectively scale and adjust our business in response to fluctuating market opportunities and conditions.

In response to changes in market conditions and market demand for our products, we have in the past undertaken cost savings initiatives. For example, in May 2013, March 2014 and May 2015 we executed restructuring events designed to focus our resources on key strategic initiatives and streamline our business. As a result, we have recognized and expect in fiscal 2016 to recognize substantial restructuring charges. We may in the future undertake initiatives that may include restructuring, disposing of, and/or otherwise discontinuing certain products, or a combination of these actions. Rapid changes in the size, alignment or organization of our workforce, including sales account coverage, could adversely affect our ability to develop, sell and deliver products and services as planned or impair our ability to realize our current or future business and financial objectives. Any decision to take these actions may result in charges to earnings associated with, among other things, inventory or other fixed, intangible or goodwill asset reductions (including, without limitation, impairment charges), workforce and facility reductions and penalties and claims from third party resellers or users of discontinued products. Charges associated with these activities would harm our operating results. In addition to the costs associated with these activities, we may not realize any of the anticipated benefits of the underlying restructuring activities.

We are continually seeking ways to make our cost structure, business processes and systems more efficient, including by moving activities from higher-cost to lower-cost locations, outsourcing certain business processes and functions, and implementing new business information systems. Problems with the execution of these activities could have an adverse effect on our business, operating results and financial condition.

We continuously seek to make our cost structure and business processes more efficient, including by moving our business activities from higher-cost to lower-cost locations, outsourcing certain business processes and functions, and implementing changes to our business information systems. These efforts involve a significant investment of financial and human resources and significant

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changes to our current operating processes. In addition, as we move operations into lower-cost jurisdictions and outsource certain business processes, we become subject to new regulatory regimes and lose control of certain aspects of our operations and, as a consequence, become more dependent upon the systems and business processes of third-parties. If we are unable to move our operations, outsource business processes and implement new business information systems in a manner that complies with local law and maintains adequate standards, controls and procedures, the quality of our products and services may suffer and we may be subject to increased litigation risk, either of which could have an adverse effect on our business, operating results and financial condition.

Our failure to pay quarterly dividends to our stockholders and/or to fully consummate our stock repurchase program could cause the market price of our stock to decline significantly.

Our ability to pay quarterly dividends and to continue to execute our stock repurchase program as planned will be subject to, among other things, our financial condition and operating results, available cash and cash flows in the U.S., capital requirements, and other factors. Future dividends are subject to declaration by our Board of Directors, and our stock repurchase program does not obligate us to acquire any specific number of shares. If we fail to meet any expectations related to dividends and/or stock repurchases, the market price of our stock could decline significantly, and could have a material adverse impact on investor confidence. Additionally, price volatility of our stock over a given period may cause the average price at which we repurchase our own stock to exceed the stock’s market price at a given point in time.

Our acquisitions may not achieve expected benefits, and may increase our liabilities, disrupt our existing business and harm our operating results.

As part of our strategy, we seek to acquire other businesses and technologies to complement our current products, expand the breadth of our markets, or enhance our technical capabilities. In fiscal 2012, we completed the acquisition of certain assets related to Engenio, in fiscal 2013, we completed the acquisitions of CacheIQ and ionGrid and in fiscal 2015, we acquired the SteelStore product line from Riverbed Technology, Inc. The benefits we expect to receive from these and other acquisitions depend on our ability to successfully conduct due diligence, negotiate the terms of the acquisition and integrate the acquired business. Any inaccuracy in our acquisition assumptions, any failure to uncover liabilities or risks associated with the acquisition, any failure to make the acquisition on favorable terms, or any failure to integrate the acquired business or assets as and when expected, may reduce or eliminate the expected benefits of the acquisition to us, increase our costs, disrupt our operations, result in additional liabilities, investigations and litigation, and may also harm our strategy, our business and our operating results. The failure to achieve expected acquisition benefits may also result in impairment charges for goodwill and purchased intangible assets.

Our OEM relationships may not generate significant revenues.

We have OEM relationships with several companies, which collectively accounted for 8% of our net revenues during fiscal 2015, compared to 9% during fiscal 2014 and 12% in fiscal 2013. These OEMs market and sell their branded solutions based on our unified solutions, as well as associated software offerings. While these arrangements are part of our general strategy to expand our reach to more customers and into more countries, we do not have exclusive relationships with our OEMs, and there is no minimum commitment for any given period of time. We also compete with some of our OEMs, further complicating our relationships with them. Therefore, our relationships with these OEMs may not continue to generate significant revenues and our total revenues may continue to decline. In addition, we have no control over the products that the OEMs select to sell, or their release schedule and timing of those products, nor do we control their pricing.

We are exposed to fluctuations in the market values of our investment portfolio and in interest rates, and impairment of our investments could harm our financial results.

We maintain an investment portfolio of various holdings, types, and maturities. A significant part of our investment portfolio consists of U.S. government securities. If global credit experiences prolonged periods of decline, or if there is a downgrade of U.S. government debt, our investment portfolio may be adversely impacted and we could determine that some of our investments have experienced an other-than-temporary decline in fair value, requiring impairment charges that could adversely affect our financial results.

If we default under our debt obligations, including our Senior Notes, our business, operating results and financial condition will be harmed. Moreover, covenants associated with our Senior Notes may unduly restrict our business.

We have Senior Notes outstanding as of April 24, 2015 in an aggregate principal amount of $1.5 billion that mature at specific dates in calendar 2017, 2021 and 2022. We have also established a revolving credit facility under which we may borrow an aggregate amount outstanding at any time of $250.0 million, under which we had no borrowings outstanding as of April 24, 2015. We may fail to pay these obligations, as and when required. Specifically, if we are unable to generate sufficient cash flows from operations or to borrow sufficient funds in the future to service or refinance our debt, our business, operating results and financial condition will be harmed.

In addition, our debt and credit facility arrangements subject us to continued compliance with restrictive and financial covenants. If we do not comply with these covenants or otherwise default under the arrangements, we may be required to repay any

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outstanding amounts borrowed under these agreements. Moreover, compliance with these covenants may restrict our strategic or operational flexibility in the future, which could harm our business, operating results and financial condition.

We are exposed to the credit and non-payment risk of our customers, resellers and distributors, especially during times of economic uncertainty and tight credit markets, which could result in material losses.

Most of our sales to customers are on an open credit basis, with typical payment terms of 30 days. We may experience losses due to a customer’s inability to pay. Beyond our open credit arrangements, some of our customers have entered into recourse and non-recourse financing leasing arrangements using third-party leasing companies. Under the terms of recourse leases, which are generally three years or less, we remain liable for the aggregate unpaid remaining lease payments to the third-party leasing companies in the event of end-user customer default. During periods of economic uncertainty, our exposure to credit risks from our customers increases. In addition, our exposure to credit risks of our customers may increase further if our customers and their customers or their lease financing sources are adversely affected by global economic conditions.

Our failure to adjust to emerging standards in the storage industry may harm our business.

Emerging standards in the storage and data management markets may adversely affect the UNIX^®, Windows^® and the World Wide Web server markets upon which we depend. For example, we provide our open access data retention solutions to customers within the financial services, healthcare, pharmaceutical and government market segments, industries that are subject to various evolving governmental regulations with respect to data access, reliability and permanence in the U.S. and in the other countries in which we operate. If our products do not meet and continue to comply with these evolving governmental regulations in this regard, customers in these market and geographical segments will not purchase our products, and we may not be able to expand our product offerings in these market and geographical segments at the rates which we have forecasted.

Some of our products are subject to U.S. export control laws and other laws affecting the countries in which our products and services may be sold, distributed, or delivered; any violation of these laws could have a material and adverse effect on our business, operating results and financial condition.

Due to the global nature of our business, we are subject to import and export restrictions and regulations, including the Export Administration Regulations administered by the Commerce Department’s Bureau of Industry and Security (BIS) and the trade and economic sanctions regulations administered by the Treasury Department’s Office of Foreign Assets Control (OFAC). The U.S., through the BIS and OFAC, places restrictions on the sale or export of certain products and services to certain countries and persons. Violators of these export control and sanctions laws may be subject to significant penalties, which may include significant monetary fines, criminal proceedings against them and their officers and employees, a denial of export privileges, and suspension or debarment from selling products to the federal government. Our products could be shipped to those targets by third parties, including potentially our channel partners, despite our precautions.

If we were ever found to have violated U.S. export control laws, we may be subject to various penalties available under the laws, any of which could have a material and adverse impact on our business, operating results and financial condition. Even if we were not found to have violated such laws, the political and media scrutiny surrounding any governmental investigation of us could cause us significant expense and reputational harm and distract senior executives from managing our normal day-to-day operations. Such collateral consequences could have a material adverse impact on our business, operating results and financial condition.

Changes in regulations relating to our products or their components, or the manufacture, sourcing, distribution or use thereof, may harm our business and operating results.

The laws and regulations governing the manufacturing, sourcing, distribution and use of our products have become more complex and stringent over time. For example, in addition to various environmental laws relating to carbon emissions and the use and discharge of hazardous materials, the SEC has recently adopted regulations concerning the supply of certain minerals originating from the conflict zones of the Democratic Republic of Congo or adjoining countries. We may incur costs to comply with the new disclosure requirements of this law and may realize other costs relating to the sourcing and availability of minerals used in our products. Further, since our supply chain is complex, we may face reputational harm if our customers or other stakeholders conclude that we are unable to verify sufficiently the origins of the minerals used in the products we sell. As the laws and regulations governing our products continue to expand and change, our costs are likely to rise, and the failure to comply with any such laws and regulations could subject us to business interruptions, litigation risks and reputational harm.

Our failure to protect our intellectual property could harm our business, operating results and financial condition.

Our success depends significantly upon developing, maintaining and protecting our proprietary technology. We rely on a combination of patents, copyrights, trademarks, trade secrets, confidentiality procedures and contractual provisions with employees, resellers, strategic partners and customers, to protect our proprietary rights. We currently have multiple U.S. and international patent applications pending and multiple U.S. and international patents issued. The pending applications may not be approved, and our existing and future patents may be challenged. If such challenges are brought, the patents may be invalidated. We may not be able to develop proprietary products or technologies that are patentable, and patents issued to us may not provide us with any competitive

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advantages and may be challenged by third parties. Further, the patents of others may materially and adversely affect our ability to do business. In addition, a failure to obtain and defend our trademark registrations may impede our marketing and branding efforts and competitive condition. Litigation may be necessary to protect our proprietary technology. Any such litigation may be time-consuming and costly. Despite our efforts to protect our proprietary rights, unauthorized parties may attempt to copy aspects of our products or obtain and use information that we regard as proprietary. In addition, the laws of some foreign countries do not protect proprietary rights to as great an extent as do the laws of the U.S. Our means of protecting our proprietary rights may not be adequate or our competitors may independently develop similar technology, duplicate our products, or design around patents issued to us or other intellectual property rights of ours.

We are subject to intellectual property infringement claims. We may, from time to time, receive claims that we are infringing third parties’ intellectual property rights. Third parties may in the future claim infringement by us with respect to current or future products, patents, trademarks or other proprietary rights. We expect that companies in the network storage and data management markets will increasingly be subject to infringement claims as the number of products and competitors in our industry segment grows and the functionality of products in different industry segments overlaps. Any such claims could be time consuming, result in costly litigation, cause product shipment delays, require us to redesign our products, or require us to enter into royalty or licensing agreements, any of which could materially and adversely affect our operating results. Such royalty or licensing agreements, if required, may not be available on terms acceptable to us or at all.

Our business could be materially and adversely affected as a result of natural disasters, terrorist acts or other catastrophic events.

We depend on the ability of our personnel, inventories, equipment and products to move reasonably unimpeded around the world. Any political, military, terrorism, global trade, world health or other issue that hinders this movement or restricts the import or export of materials could lead to significant business disruptions. Furthermore, any economic failure or other material disruption caused by natural disasters, including fires, floods, hurricanes, earthquakes, and volcanoes; power loss or shortages; environmental disasters; telecommunications or business information systems failures or break-ins and similar events could also adversely affect our ability to conduct business. If such disruptions result in cancellations of customer orders or contribute to a general decrease in economic activity or corporate spending on information technology, or directly impact our marketing, manufacturing, financial and logistics functions, or impair our ability to meet our customer demands, our operating results and financial condition could be materially adversely affected. In addition, our headquarters and one of our major data centers are located in Northern California, an area susceptible to earthquakes. If any significant disaster were to occur, our ability to operate our business and our financial condition could be impaired.

Changes in financial accounting standards may cause adverse unexpected fluctuations and affect our reported operating results.

A change in accounting standards or practices and varying interpretations of existing accounting pronouncements, the increased use of fair value measures, changes to revenue recognition, lease accounting, financial instruments and other accounting standards could have a significant effect on our reported financial results or the way we conduct our business. Implementation of accounting regulations and related interpretations and policies, particularly those related to revenue recognition, could cause us to defer recognition of revenue or recognize lower revenue, which may affect our operating results.

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Item 1B. Unresolved Staff Comments

Not applicable.

Item 2. Properties

We own approximately 1.7 million square feet of facilities at our Sunnyvale, California headquarters, of which we occupy approximately 1.4 million square feet. The Sunnyvale site supports research and development, corporate general administration, sales and marketing, global services and operations.

We own approximately 0.8 million square feet of facilities in Research Triangle Park (RTP), North Carolina, of which we occupy approximately 0.5 million square feet. In addition, we own 65 acres of undeveloped land. The RTP site supports research and development, global services and sales and marketing.

We own forty acres of land and approximately 0.3 million square feet of facilities in Wichita, Kansas. This site supports sales and marketing, research and development, and global services.

We lease and occupy approximately 0.4 million square feet of facilities in Bangalore, India. In addition, we own 15 acres of land and 1.0 million square feet of facilities under construction. The Bangalore site supports research and development, marketing and global services.

We lease other sales offices and research and development facilities throughout the U.S. and internationally. We expect that our existing facilities and those being developed worldwide are suitable and adequate for our requirements over at least the next two years and that additional space will be available as needed.

Item 3. Legal Proceedings

None.

Item 4. Mine Safety Disclosures

Not applicable.

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PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

The Company’s common stock is traded on the NASDAQ Stock Market LLC (“NASDAQ”) under the symbol NTAP.

Price Range of Common Stock

The price range per share of common stock presented below represents the highest and lowest intraday sales prices for the Company’s common stock on the NASDAQ during each quarter of our two most recent fiscal years.

	Fiscal 2015				Fiscal 2014
	High		Low		High		Low
First Quarter	$	38.21	$	33.34	$	42.11	$	33.61
Second Quarter	$	43.75	$	37.44	$	44.65	$	38.93
Third Quarter	$	43.67	$	38.14	$	45.96	$	38.34
Fourth Quarter	$	39.90	$	34.94	$	44.44	$	34.95

Holders

As of May 29, 2015 there were 574 holders of record of our common stock.

Dividends

The Company paid cash dividends of $0.165 per outstanding common share in each quarter of fiscal 2015 for an aggregate of $207.4 million, and paid dividends of $0.15 per outstanding common share in each quarter of fiscal 2014 for an aggregate of $202.3 million.

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Performance Graph

The following graph shows a comparison of cumulative total shareholder return, calculated on a dividend reinvested basis, of an investment of $100 for the Company, the S&P 500 Index and the S&P Information Technology Index for the five years ended April 24, 2015. The Company is no longer reporting the NASDAQ Composite Index performance, as it no longer considers it to be a significant comparator to the Company’s performance. The comparisons in the graphs below are based upon historical data and are not indicative of, nor intended to forecast, future performance of our common stock. The graph and related information shall not be deemed “soliciting material” or be deemed to be “filed” with the SEC, nor shall such information be incorporated by reference into any past or future filing with the SEC, except to the extent that such filing specifically states that such graph and related information are incorporated by reference into such filing.

COMPARISON OF FIVE YEAR CUMULATIVE TOTAL RETURN

Among NetApp, Inc., the S&P 500 Index, and the S&P Information Technology Index*

*$100 invested on April 30, 2010 in stock or index, including reinvestment of dividends. Data points are the last day of each fiscal year for the Company’s common stock and each of the indexes.

	April 2010		April 2011		April 2012		April 2013		April 2014		April 2015
NetApp, Inc.	$	100.00	$	150.30	$	112.58	$	100.58	$	102.51	$	107.69
S&P 500 Index	$	100.00	$	117.22	$	123.27	$	142.15	$	170.96	$	198.28
S&P 500 Information Technology Index	$	100.00	$	113.16	$	130.78	$	128.20	$	161.33	$	201.39

We believe that a number of factors may cause the market price of our common stock to fluctuate significantly. See Item 1A. – Risk Factors.

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Purchases of Equity Securities by the Issuer and Affiliated Purchasers

The following table provides information with respect to the shares of common stock repurchased by us during the three months ended April 24, 2015:

					Total Number of Shares		Approximate DollarValue
	Total Number		Average		Purchased as Part of		of Shares That May Yet
	of Shares		PricePaid		Publicly Announced		Be Purchased Under The
Period	Purchased		per Share		Program		Repurchase Program
	(Shares in thousands)				(Shares in thousands)		(Dollars in millions)
January 24, 2015 - February 20, 2015		927	$	37.78		208,376	$	2,671.0
February 21, 2015 - March 20, 2015		4,465	$	38.28		212,841	$	2,500.0
March 21, 2015 - April 24, 2015		1,134	$	35.68		213,975	$	2,459.5
Total		6,526	$	37.75

In May 2003, our Board of Directors approved a stock repurchase program. As of April 24, 2015, our Board of Directors has authorized the repurchase of up to $9.6 billion of our common stock, including a $2.5 billion increase approved by our Board of Directors in fiscal 2015. During fiscal 2015, we repurchased and retired 29.6 million shares of our common stock for an aggregate purchase price of $1,165.2 million. Since inception of the program through April 24, 2015, we repurchased a total of 214.0 million shares of our common stock for an aggregate purchase price of $7.1 billion. As of April 24, 2015, the remaining authorized amount for stock repurchases was $2.5 billion. Under this program, we may purchase shares of our outstanding common stock through open market and privately negotiated transactions at prices deemed appropriate by our management. The stock repurchase program may be suspended or discontinued at any time.

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Item 6. Selected Financial Data

The following selected consolidated financial data set forth below was derived from our historical audited consolidated financial statements and should be read in conjunction with, Item 7 – Management’s Discussion and Analysis of Financial Condition and Results of Operations and Item 8 – Financial Statements and Supplementary Data, and other financial data included elsewhere in this Annual Report on Form 10-K. Our historical results of operations are not indicative of our future results of operations.

	Fiscal Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013		April 27, 2012		April 29, 2011
	(In millions, except per share amounts)
Net revenues	$	6,122.7	$	6,325.1	$	6,332.4	$	6,233.2	$	5,122.6
Gross profit	$	3,833.2	$	3,919.1	$	3,761.1	$	3,713.4	$	3,328.7
Net income	$	559.9	$	637.5	$	505.3	$	605.4	$	673.1
Net income per share, basic	$	1.77	$	1.87	$	1.40	$	1.66	$	1.87
Net income per share, diluted	$	1.75	$	1.83	$	1.37	$	1.58	$	1.71
Shares used in basic computation		315.5		340.3		361.5		363.9		360.9
Shares used in diluted computation		320.7		347.9		368.0		384.3		393.7
Cash dividends declared per share	$	0.66	$	0.60	$	—	$	—	$	—

	April 24, 2015		April 25, 2014		April 26, 2013		April 27, 2012		April 29, 2011
	(In millions)
Cash, cash equivalents and short-term investments	$	5,326.2	$	5,003.3	$	6,952.6	$	5,398.5	$	5,174.7
Working capital	$	4,064.4	$	3,776.7	$	4,587.6	$	3,306.7	$	2,992.4
Total assets (1)	$	9,401.2	$	9,213.8	$	11,235.3	$	9,526.9	$	8,488.9
Current portion of long-term debt (1)	$	—	$	—	$	1,257.2	$	1,196.9	$	1,140.5
Long-term debt and other long-term liabilities (1)	$	1,805.1	$	1,286.3	$	1,241.6	$	206.9	$	192.9
Total stockholders' equity	$	3,414.1	$	3,786.5	$	4,717.5	$	4,293.6	$	3,730.2

⁽¹⁾   In fiscal 2015, we adopted a new accounting standard that resulted in a reclassification of debt issuance costs from other assets to an offset to debt. The impact of the adoption of this new standard was a $7.5 million, $5.4 million, $7.1 million, $5.4 million and $9.9 million reduction in total assets as of April 24, 2015, April 25, 2014, April 26, 2013, April 27, 2012 and April 29, 2011, respectively, a $0.6 million, $5.4 million and $9.9 million reduction in current portion of long-term debt as of April 26, 2013, April 27, 2012 and April 29, 2011, respectively, and a $7.5 million, $5.4 million and $6.5 million reduction in long-term debt and other long-term liabilities as of April 24, 2015, April 25, 2014 and April 26, 2013, respectively.

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion of our financial condition and results of operations should be read together with the financial statements and the accompanying notes set forth under Item 8. – Financial Statements and Supplementary Data. The following discussion also contains trend information and other forward-looking statements that involve a number of risks and uncertainties. The Risk Factors set forth in Item 1A. – Risk Factors are hereby incorporated into the discussion by reference.

Executive Overview

Our Company

We are a leading global provider of software, systems and services to manage and store customer data. We enable enterprises, service providers, governmental organizations, and partners to envision, deploy and evolve their information technology (IT) environments and to reduce costs and risk while driving growth and success for their organizations.

Our unified scale-out fabric-attached storage (FAS) platform is designed to meet the demanding requirements of shared infrastructures and cloud environments. Our E-Series high-performance storage area network platform is designed to meet demanding performance and capacity requirements of dedicated workloads, while retaining simplicity and an optimized price to performance ratio. Our FAS storage platform uses the NetApp DataONTAP storage operating system to deliver integrated data protection, comprehensive data management, and built-in efficiency software for virtualized, shared infrastructures, cloud computing, and mixed workload business applications. We offer hybrid and all-flash configurations of both FAS and E-Series platforms. Our configured systems consist of (1) entry level product platform, which consists of our FAS2000 systems, (2) mid-range product platform, which consists of our legacy FAS3000 systems and our new FAS8020 and FAS8040 systems, and (3) high-end product platform, which consists of our legacy 6000 systems and our new FAS8060 systems.

In addition to our products, we provide a variety of services including software maintenance (formerly called Software Maintenance and Entitlement or SEM Revenues), hardware maintenance and other services including professional services, global support solutions, and customer education and training to help customers most effectively manage their data (formerly called Services Revenues).

We employ a multichannel distribution strategy, selling products and services to end users and service providers through a direct sales force and through channel partners, including value-added resellers, system integrators, original equipment manufacturers (OEMs) and distributors.

Financial Results and Key Performance Metrics Overview

The following table provides an overview of some of our key financial metrics for each of the last three fiscal years (in millions, except per share amounts, percentages and days sales outstanding):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Net revenues	$	6,122.7		$	6,325.1		$	6,332.4
Gross profit	$	3,833.2		$	3,919.1		$	3,761.1
Gross profit margin percentage		63	%		62	%		59	%
Income from operations	$	716.5		$	734.3		$	607.8
Income from operations as a percentage of net revenues		12	%		12	%		10	%
Net income	$	559.9		$	637.5		$	505.3
Diluted net income per share	$	1.75		$	1.83		$	1.37
Operating cash flows	$	1,268.1		$	1,349.6		$	1,386.3

	April 24, 2015		April 25, 2014
Deferred revenue	$	3,197.2	$	3,100.2
Days sales outstanding (DSO)		46		47

· Net revenues:  Our net revenues declined 3% in fiscal 2015 compared to fiscal 2014. This was primarily due to a decrease of 7% in product revenues, which included the impact of unfavorable foreign currency exchange rate changes during the second half of fiscal 2015, partially offset by a 7% increase in hardware maintenance and other services revenues generated from a higher installed base of our hardware products under maintenance contracts.

· Gross profit margin percentage:  Our gross profit margin as a percentage of net revenues increased in fiscal 2015 compared to fiscal 2014 primarily due to higher gross margins on hardware maintenance and other services revenues.

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· Income from operations as a percentage of net revenues:  Our income from operations as a percentage of net revenues was relatively flat in fiscal 2015 compared to fiscal 2014 primarily due to cost control measures executed during the year.

· Net income and Diluted income per share:  The 12% and 4% decrease in net income and diluted net income per share, respectively, in fiscal 2015 compared to fiscal 2014 reflects lower operating income in dollars, as well as an increase of 7.6 percentage points in our effective tax rate. In addition to these factors, diluted net income per share was favorably impacted by an 8% decrease in the number of dilutive shares, primarily due to the favorable impact of share repurchases.

· Operating cash flows:  Operating cash flows decreased 6% in fiscal 2015, reflecting a decrease in net income, as well as unfavorable changes in net operating assets and liabilities.

· Deferred revenue:  Total deferred revenue increased $97.0 million, or 3%, in fiscal 2015 compared to fiscal 2014 primarily due an increase in deferred software and hardware maintenance contract sales and renewals.

· DSO:  Days Sales Outstanding (DSO) were 46 in the fourth quarter of fiscal 2015 compared to 47 in the fourth quarter of fiscal 2014 reflecting seasonal shipment linearity.

Stock Repurchase Program and Dividend Activity

During fiscal 2015, we repurchased 29.6 million shares of our common stock at an average price of $39.30 per share, for an aggregate of $1.2 billion. We also declared cash dividends of an aggregate of $0.66 per share in fiscal 2015, for which we paid an aggregate of $207.4 million.

Critical Accounting Policies and Estimates

Our consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America (GAAP), which require management to make judgments, estimates and assumptions that affect the reported amounts of assets, liabilities, net revenues and expenses, and the disclosure of contingent assets and liabilities. Our estimates are based on historical experience and various other assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities. We believe that the accounting estimates employed and the resulting balances are reasonable; however, actual results may differ from these estimates and such differences may be material.

The summary of significant accounting policies is included in Note 1 – Description of Business and Significant Accounting Policies of the Notes to Consolidated Financial Statements. An accounting policy is deemed to be critical if it requires an accounting estimate to be made based on assumptions about matters that are highly uncertain at the time the estimate is made, if different estimates reasonably could have been used, or if changes in the estimate that are reasonably possible could materially impact the financial statements. The accounting policies described below reflect the significant judgments, estimates and assumptions used in the preparation of the consolidated financial statements.

Revenue Recognition, Reserves and Allowances

We recognize revenue when persuasive evidence of an arrangement exists, delivery has occurred, the fee is fixed or determinable and collection is reasonably assured. Revenue from the sale of hardware systems and software components essential to the functionality of the hardware systems is recognized in accordance with general revenue recognition accounting guidance. Our product revenues also include revenues from the sale of non-essential software products, which generally includes a perpetual license to our software. Non-essential software sales are subject to industry specific software revenue recognition accounting guidance. Software maintenance and hardware maintenance services revenues are recognized ratably over their contractual terms, generally from one to five years.

For multiple element arrangements, we allocate revenue to the software deliverables and the non-software deliverables as a group based on the relative selling prices of all of the deliverables in the arrangement. For our non-software deliverables, we allocate the arrangement consideration based on the relative selling price of the deliverables using estimated selling price (ESP). For our software maintenance services, we generally use vendor-specific objective evidence of selling price (VSOE). When we are unable to establish VSOE for our software maintenance services, we use ESP in our allocation of arrangement consideration.

The selling price for each element is based upon the following selling price hierarchy: VSOE if available, third party evidence (TPE) if VSOE is not available, or ESP if neither VSOE nor TPE are available. Generally, we are not able to determine TPE because our go-to-market strategy differs from that of our peers and our offerings contain a significant level of differentiation such that the comparable pricing of products with similar functionality cannot be obtained.

We record reductions to revenue for estimated sales returns at the time of shipment. We also maintain a separate allowance for doubtful accounts for estimated losses based on our assessment of the collectability of specific customer accounts.

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The following are the key estimates and assumptions and corresponding uncertainties for recognizing revenue:

	Key Estimates and Assumptions		Key Uncertainties
·	We establish VSOE of selling price using the price charged for a deliverable when sold separately and generally evidenced by a substantial majority of historical stand-alone transactions falling within a reasonably narrow range. In addition, we consider major service type, customer type, and other variables in determining VSOE. Our revenue estimates and assumptions are based on our ability to assert and maintain VSOE. ESP is generally evidenced by a majority of historical transactions falling within a reasonable price range. We also consider multiple factors, including, but not limited to, cost of products, gross margin objectives, historical pricing practices, customer type and distribution channels. Our revenue estimates and assumptions are based on our ability to maintain consistent ESP.	·	As our business and offerings evolve over time, modifications to our pricing and discounting methodologies, changes in the scope and nature of service offerings and/or changes in customer segmentation may result in a lack of consistency required to establish and/or maintain VSOE or to maintain consistent ESP. Additionally, technological changes resulting in variability in product costs and gross margins may require changes to our ESP model. Changes in ESP may result in a different allocation of revenue to the deliverables in multiple-element arrangements. These factors, among others, may adversely impact the amount of revenue and gross margin we report in a particular period.
·	Sales returns are estimated based on historical sales returns, current trends and our expectations regarding future experience. Additionally, distributors and partners participate in various marketing and other programs, and we maintain estimated accruals and allowances for these programs based on contractual terms and historical experience.	·	If there is insufficient relevant historical data for determining our sales returns estimates, or if we experience changes in practices related to sales returns or changes in market or competitive conditions resulting in higher than expected return rates, or if actual credits received by our distributors and partners deviate significantly from our estimates, our revenues may be adversely impacted.

Inventory Valuation and Purchase Order Accruals

Inventories consist primarily of purchased components and finished goods and are stated at the lower of cost or market, which approximates actual cost on a first-in, first-out basis. A provision is recorded when inventory is determined to be in excess of anticipated demand or obsolete in order to adjust inventory to its estimated realizable value. The following are the key estimates and assumptions and corresponding uncertainties for estimating the value of our inventories:

	Key Estimates and Assumptions		Key Uncertainties
·	We periodically perform an excess and obsolete analysis of our inventory. Inventories are written down based on excess and obsolete reserves determined primarily on assumptions about future demand forecasts and market conditions. At the point of the loss recognition, a new, lower cost basis for that inventory is established, and subsequent changes in facts and circumstances do not result in the restoration or increase in that newly established cost basis.	·	Although we use our best estimates to forecast future product demand, any significant unanticipated changes in demand or obsolescence related to technological developments, new product introductions, customer requirements, competition or other factors could have a significant impact on the valuation of our inventory. If actual market conditions are less favorable than those projected, additional write-downs and other charges against earnings that adversely impact gross margins may be required. If actual market conditions are more favorable, we may realize higher gross profits in the period when the written-down inventory is sold. We are subject to a variety of environmental laws relating to the manufacture of our products. If there are changes to the current regulations, we may be required to make product design changes which may result in excess or obsolete inventory, which could adversely impact our operating results.
·	We make commitments to our third-party contract manufacturers and other suppliers to manage lead times and meet product forecasts and to other parties to purchase various key components used in the manufacture of our products. We establish accruals for estimated losses on non-cancelable purchase commitments when we believe it is probable that the components will not be utilized in future operations.	·	If the actual materials demand is significantly lower than our forecast, we may be required to increase our recorded liabilities for estimated losses on non-cancelable purchase commitments which would adversely impact our operating results.

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Goodwill and Purchased Intangible Assets

We allocate the purchase price of acquisitions to identifiable assets acquired and liabilities assumed at their acquisition date fair values based on established valuation techniques. Goodwill represents the residual value as of the acquisition date, which in most cases is measured as the excess of the purchase consideration transferred over the net of the acquisition date fair values of the assets acquired and liabilities assumed.

The carrying values of purchased intangible assets are reviewed whenever events and circumstances indicate that the net book value of an asset may not be recovered through expected future cash flows from its use and eventual disposition. We periodically review the estimated remaining useful lives of our intangible assets. This review may result in impairment charges or shortened useful lives, resulting in charges to our consolidated statements of operations.

We review goodwill for impairment annually and whenever events or changes in circumstances indicate the carrying value of an asset may not be recoverable. The provisions of the accounting standard for goodwill allow us to first assess qualitative factors to determine whether it is necessary to perform the two-step quantitative goodwill impairment test. For our annual goodwill impairment test in the fourth quarter of fiscal 2015, we performed a quantitative test at the reporting unit level and determined the fair value substantially exceeded the carrying value for each reporting unit and, therefore, found no impairment of goodwill.

The following are the key estimates and assumptions and corresponding uncertainties for estimating the value of our goodwill and purchased intangible assets:

	Key Estimates and Assumptions		Key Uncertainties
·	The assessment of fair value for goodwill and purchased intangible assets is based on factors that market participants would use in an orderly transaction in accordance with the accounting guidance for the fair value measurement of nonfinancial assets. The valuation of purchased intangible assets is principally based on estimates of the future performance and cash flows expected to be generated by the acquired assets from the acquired business.	·	While we employ experts to determine the acquisition date fair value of acquired intangibles, the fair value of assets acquired and liabilities assumed are based on significant management assumptions and estimates, which are inherently uncertain and highly subjective and as a result, actual results may differ from estimates. If different assumptions were to be used, it could materially impact the purchase price allocation.
·	Evaluations of possible goodwill and purchased intangible assets impairment require us to make judgments and assumptions related to the allocation of our balance sheet and income statement amounts and estimate future cash flows and fair market values of our reporting units and assets.	·	In response to changes in industry and market conditions, we could be required to strategically realign our resources and consider restructuring, disposing of, or otherwise exiting businesses, which could result in an impairment of goodwill or purchased intangible assets. Assumptions and estimates about expected future cash flows and the fair values of our goodwill and purchased intangible assets are complex and subjective. They can be affected by a variety of factors, including external factors such as the adverse impact of unanticipated changes in macroeconomic conditions and technological changes or new product introductions from competitors. They can also be affected by internal factors such as changes in business strategy or in forecasted product life cycles and roadmaps. Our ongoing consideration of these and other factors could result in future impairment charges or accelerated amortization expense, which could adversely affect our operating results.

Product Warranties

Estimated future hardware and software warranty costs are recorded as a cost of product revenues at the time of product shipment. We assess the adequacy of our warranty accrual each quarter and adjust the amount as considered necessary.

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The following are the key estimates and assumptions and corresponding uncertainties for product warranties:

	Key Estimates and Assumptions		Key Uncertainties
·	Estimated future software and hardware warranty costs are based on historical and projected warranty claim rates, product failure rates, historical and projected materials and logistics costs, distribution and labor costs and knowledge of specific product failures that are outside of our typical experience. We also evaluate our estimates to assess the adequacy of our warranty liability considering the size of the installed base of products subject to warranty protection and adjust the estimates as necessary.	·	Although we engage in product quality programs and processes, if we experience unexpected quality issues resulting in higher failure rates or experience increases in costs to remediate product failures, additional warranty costs may be incurred. Additionally, for new products our warranty liability is based on limited historical experience. If our projections differ from such limited experience, our warranty costs may increase, which could adversely impact our gross margins.

Stock-Based Compensation

We recognize stock-based compensation expense for all share-based payment awards, net of an estimated forfeiture rate, on a straight-line basis over the requisite service period.

The following are the key estimates and assumptions and corresponding uncertainties for our stock-based compensation:

	Key Estimates and Assumptions		Key Uncertainties
·	The fair values of employee stock options and rights to purchase shares under our Employee Stock Purchase Plan (ESPP) are estimated using the Black-Scholes option-pricing model. The key assumptions used in estimating the fair value of such awards include the expected term of the awards, risk free interest rates, future dividend rates and the expected stock price volatility over the expected term of the awards.	·	To the extent that market conditions or company specific events lead to higher stock price volatility or employee stock option exercise behavior differs from expectations, the estimated fair value and stock-based compensation expense may differ significantly in future periods, which could impact our operating results.
·	Stock-based compensation expense is based on awards ultimately expected to meet service vesting conditions and is impacted by the estimated forfeiture rate.	·	If we experience employee turnover different from our historical rates, our stock-based compensation expense in the future may differ significantly from what we have recorded in the current period.

Valuation of Investment Securities

Our investments in debt securities are reported at fair value and are subject to periodic impairment review. Unrealized gains and losses related to changes in the fair value of these securities are recognized in accumulated other comprehensive income, net of tax, unless they are determined to be other-than-temporary impairments. The ultimate value realized on these securities is subject to market price volatility until they are sold.

The following are the key estimates and assumptions and corresponding uncertainties for the valuation of our investment securities:

	Key Estimates and Assumptions		Key Uncertainties
·	The estimated fair value of our debt securities, and the associated accounting for unrealized losses is based on an evaluation of current economic and market conditions, the credit rating of the security’s issuer, the length of time and extent a security’s fair value has been below its amortized cost and our ability and intent to hold the security for a period of time sufficient to allow for anticipated recovery in value. If we determine that an investment has an other-than-temporary decline in fair value, we recognize the investment loss in earnings.	·	The fair value of our investments in debt securities could decrease significantly from uncertainties in the credit and capital markets, credit rating downgrades and/or solvency of the issuer, decreases in the marketability of the securities or changes in our ability and intent to continue to hold the securities. If the fair value of our investments decreases significantly and is determined to be other-than-temporary, we may incur impairment charges that could adversely affect our results of operations.

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Income Taxes

We are subject to income taxes in the United States and numerous foreign jurisdictions. We compute our provision for income taxes using the asset and liability method, under which deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the financial reporting and tax bases of assets and liabilities, and for operating losses and tax credit carryforwards. Deferred tax assets and liabilities are measured using the currently enacted tax rates that apply to taxable income in effect for the years in which those tax assets are expected to be realized or settled. The Company records a valuation allowance to reduce deferred tax assets to the amount that is believed more likely than not to be realized.

The following are the key estimates and assumptions and corresponding uncertainties for our income taxes:

	Key Estimates and Assumptions		Key Uncertainties
·	Our income tax provision is based on existing tax law and advanced pricing agreements or letter rulings we have with various tax authorities.	·	Our provision for income taxes is subject to volatility and could be adversely impacted by future changes in existing tax laws, such as a change in tax rate, possible U.S. changes to the taxation of earnings of our foreign subsidiaries, and uncertainties as to future renewals of favorable tax agreements and rulings.
·	Deferred income taxes have not been provided on the undistributed earnings of foreign subsidiaries because these earnings have been indefinitely reinvested and there is no plan in the foreseeable future to initiate any action that would precipitate the payment of income taxes thereon.	·	We consider the following matters, among others, in evaluating our plans for indefinite reinvestment: the forecasts, budgets and financial requirements of the parent and subsidiaries for both the long and short term; the tax consequences of a decision to reinvest; and any U.S. and foreign government programs designed to influence remittances. If factors change, future income tax expense and payments may differ significantly from the current period and could materially adversely affect our results of operations.
·	The determination of whether we should record or adjust a valuation allowance against our deferred tax assets is based on assumptions regarding our future profitability.	·	Our future profits could differ from current expectations resulting in a change to our determination as to the amount of deferred tax assets that are more likely than not to be realized. We could adjust our valuation allowance with a corresponding impact to the tax provision in the period in which such determination is made.
·	The estimates for our uncertain tax positions are based primarily on company specific circumstances, applicable tax laws, tax opinions from outside firms and past results from examinations of our income tax returns.	·	Significant judgment is required in evaluating our uncertain tax positions. Although we believe our reserves are reasonable, no assurance can be given that the final tax outcome or tax court rulings of these matters will not be different from that which is reflected in our historical tax provisions and accruals.

New Accounting Standards

See Note 3 – Recent Accounting Standards Not Yet Effective of the Notes to Consolidated Financial Statements for a full description of new accounting pronouncements, including the respective expected dates of adoption and effects on our financial statements.

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Results of Operations

Our fiscal year is reported on a 52- or 53-week year that ends on the last Friday in April. Our fiscal years 2015, 2014 and 2013 ended on April 24, 2015, April 25, 2014 and April 26, 2013, respectively, and were each 52-week years. An additional week is included in the first fiscal quarter approximately every six years to realign fiscal months with calendar months. Fiscal year 2016 will span 53 weeks, with a 14th week included in the first quarter of fiscal 2016. Unless otherwise stated, references to particular years, quarters, months and periods refer to the Company’s fiscal years ended in April and the associated quarters, months and periods of those fiscal years.

The following table sets forth certain Consolidated Statements of Operations data as a percentage of net revenues for the periods indicated:

	Fiscal Year
	2015			2014			2013
Revenues:
Product		60	%		62	%		65		%
Software maintenance		15			14			14
Hardware maintenance and other services		26			23			21
Net revenues		100			100			100
Cost of revenues:
Cost of product		27			28			31
Cost of software maintenance		1			—			—
Cost of hardware maintenance and other services		10			9			9
Gross profit		63			62			59
Operating expenses:
Sales and marketing		31			30			31
Research and development		15			15			14
General and administrative		5			4			4
Restructuring and other charges		—			1			—
Acquisition-related expense		—			—			—
Total operating expenses		51			50			50
Income from operations		12			12			10
Other income (expense), net		—			—			(1	)
Income before income taxes		12			12			9
Provision for income taxes		2			2			1
Net income		9	%		10	%		8		%

Percentages may not add due to rounding

Discussion and Analysis of Results of Operations

Overview — Net revenues for fiscal 2015 were $6,122.7 million, down $202.4 million, or 3%, compared to fiscal 2014, reflecting a decrease in product and software maintenance revenues, partially offset by an increase in hardware maintenance and other services revenues. Net revenues for fiscal 2014 were $6,325.1 million, down $7.3 million, or less than 1%, compared to fiscal 2013, reflecting a decrease in product revenues, mostly offset by increases in software maintenance and hardware maintenance and other services revenues.

Gross profit as a percentage of net revenues increased 1% during fiscal 2015 compared to fiscal 2014, reflecting higher gross margins on hardware maintenance contract and other services revenues. Gross profit margins on product revenues in fiscal 2015 were relatively flat compared to fiscal 2014 primarily due to lower average selling price (ASP) for configured systems being offset by lower unit materials cost due to changes in product mix. Gross profit as a percentage of net revenues increased 3% during fiscal 2014 compared to fiscal 2013, primarily due to lower unit materials costs due to supply chain efficiencies, partially offset by lower ASPs for total configured systems. Additionally, gross profit was favorably impacted in fiscal 2014 by lower OEM revenues and higher margins on hardware maintenance and other services revenues.

Sales and marketing, research and development, and general and administrative expenses for fiscal 2015 totaled $3,116.7 million, up 2% as a percentage of net revenues compared to fiscal 2014, primarily due to a slight decrease in costs on a lower revenue denominator. Sales and marketing, research and development, and general and administrative expenses for fiscal 2014 totaled $3,096.5 million, down 1% as a percentage of net revenues compared to fiscal 2013, reflecting cost control programs implemented in fiscal 2014, partially offset by an increase in incentive compensation due to higher achievement against plan.

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Net Revenues (in millions, except percentages):

	Fiscal Year
	2015		2014		% Change			2013		% Change
Net revenues	$	6,122.7	$	6,325.1		(3	)%	$	6,332.4		—	%

The decrease in net revenues for fiscal 2015 was primarily due to a reduction of $289.3 million in product revenues, partially offset by $103.1 million increase in hardware maintenance and other services revenues. Product revenues comprised 60% of net revenues for fiscal 2015, compared to 62% of net revenues for fiscal 2014.

The slight decrease in net revenues for fiscal 2014 was due to a decrease of $148.4 million in product revenues, offset by an aggregate increase in software maintenance, hardware maintenance and other services revenues of $141.1 million. Product revenues comprised 62% of net revenues for fiscal 2014, compared to 65% of net revenues for fiscal 2013.

Sales through our indirect channels represented 80%, 82% and 81% of net revenues in fiscal 2015, 2014 and 2013, respectively. Included in indirect channel sales were $472.8 million, $584.7 million and $787.2 million of OEM revenues for fiscal 2015, 2014 and 2013, respectively.

The following customers, each of which is a distributor, accounted for 10% or more of net revenues:

	Fiscal Year
	2015			2014			2013
Arrow Electronics, Inc.		23	%		22	%		19	%
Avnet, Inc.		16	%		16	%		15	%

Product Revenues (in millions, except percentages):

	Fiscal Year
	2015		2014		% Change			2013		% Change
Product revenues	$	3,654.6	$	3,943.9		(7	)%	$	4,092.3		(4	)%

Product revenues consist of configured systems, which include bundled hardware and software products, and non-configured products, which consist primarily of add-on storage, OEM products and add-on hardware and software products.

Total configured system revenues of $2,212.9 million decreased by $74.4 million, or 3%, in fiscal 2015, compared to fiscal 2014. Revenues decreased in FAS entry level, mid-range and high-end systems, partially offset by an increase in E-Series systems (which include our all flash EF systems). Total configured systems unit volume increased 5% primarily due to a unit volume increase in FAS mid-range, high-end systems and E-Series systems platforms, partially offset by a decrease in unit volume in FAS entry level systems. These changes in unit volume reflect a shift in customer demand to our newer FAS mid-range and high-end systems and higher demand for our E-Series systems, and away from our older FAS entry level systems. ASPs decreased across all FAS systems and E-Series systems platforms due to a combination of newer lower priced products within their respective platforms and unfavorable foreign exchange rates, which had an aggregate negative impact of $45.8 million on configured systems revenues in fiscal 2015 compared to fiscal 2014. As a result, overall ASPs of configured systems were lower in fiscal 2015 compared to fiscal 2014.

Non-configured product revenues of $1,441.7 million decreased by $214.9 million, or 13%, during fiscal 2015 compared to fiscal 2014. This decrease was primarily due to a decrease of 32% in add-on storage revenues and decrease of 20% in OEM revenues, partially offset by a 133% increase in add-on software. The decrease in add-on storage and increase in add-on software are largely due to the change in our pricing strategy that was effective in the fourth quarter of fiscal 2014, whereby we now charge for operating system software for storage capacity but have lowered prices on storage hardware. Non-configured systems revenues were negatively impacted by $21.1 million as a result of unfavorable foreign exchange rates in fiscal 2015, compared to fiscal 2014.

Total configured system revenues of $2,287.3 million increased by $4.2 million in fiscal 2014 compared to fiscal 2013. Revenues from FAS high-end systems and E-Series systems (which include our all flash EF systems) increased, offset by decreases in FAS entry level and mid-range systems. Total configured systems unit volume increased 2% during fiscal 2014 compared to fiscal 2013, primarily as a result of unit increases in the FAS high-end and mid-range systems and E-Series systems, partially offset by a decrease in unit volume of the FAS entry level systems, reflecting a shift in customer demand to our newer mid-range and high-end products, lower sales to the U.S. public sector market, and higher demand for our E-Series systems. The ASPs decreased across all FAS system platforms in fiscal 2014 compared to fiscal 2013 due to higher discounting and higher demand of newer lower priced products, while the ASP for E-Series increased due to higher ASPs on all-flash E-Series systems. Overall, ASPs of total configured systems decreased 1% during fiscal 2014 due to higher discounting and product mix.

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Non-configured product revenues of $1,656.6 million decreased $152.6 million, or 8%, during fiscal 2014 compared to fiscal 2013. This decrease was primarily due to lower revenues from non-configured OEM products, which declined 26%.

Our systems are highly configurable to respond to customer requirements in the open systems storage markets that we serve. This can cause a wide variation in product configurations that can significantly impact revenues, cost of revenues and gross profits. Pricing changes, discounting practices, product competition, foreign currency, unit volumes, customer mix, natural disasters and product materials costs can also impact revenues, cost of revenues and/or gross profits. Disk drive and flash storage materials are a significant component of our storage systems. While our sales price per terabyte historically declines over time, improved system performance, increased capacity and software to manage this increased capacity have an offsetting favorable impact on product revenues.

Software Maintenance Revenues (in millions, except percentages):

	Fiscal Year
	2015		2014		% Change			2013		% Change
Software maintenance revenues	$	898.6	$	914.8		(2	)%	$	893.5		2	%

Software maintenance revenues are associated with contracts which entitle customers to receive unspecified product upgrades and enhancements on a when-and-if-available basis, bug fixes and patch releases, as well as internet and telephone access to technical support personnel located in our global support centers.

The fluctuations in software maintenance revenues reflect fluctuations in the aggregate contract value of the installed base under software maintenance contracts, which is recognized as revenue ratably over the terms of the underlying contracts. Our software maintenance revenues were favorably impacted by a change in our pricing strategy, effective in the fourth quarter of fiscal 2014, such that we now charge for software maintenance services on the storage capacity sold in our configured systems and add-on storage products. We expect this change to continue to result in favorable trends in our software maintenance revenues as a percentage of total revenues.

Hardware Maintenance and Other Services Revenues (in millions, except percentages):

	Fiscal Year
	2015		2014		% Change			2013		% Change
Hardware maintenance and other services revenues	$	1,569.5	$	1,466.4		7	%	$	1,346.6		9	%

Hardware maintenance and other services revenues include hardware maintenance, professional services and educational and training services revenues.

Hardware maintenance contract revenues were $1,252.5 million, $1,129.6 million and $991.8 million in fiscal 2015, 2014 and 2013, respectively. These revenues increased 11% during fiscal 2015 compared to fiscal 2014 and increased 14% during fiscal 2014 compared to fiscal 2013. The increases are a result of increases in the installed base and aggregate contract values under hardware maintenance contracts. Professional services and educational and training services revenues aggregated to $317.0 million, $336.8 million and $354.8 million in fiscal 2015, 2014 and 2013, respectively.

Revenues by Geographic Area:

	Fiscal Year
	2015			2014			2013
United States, Canada and Latin America (Americas)		56	%		56	%		56	%
Europe, Middle East and Africa (EMEA)		30	%		31	%		30	%
Asia Pacific (APAC)		13	%		14	%		13	%

Percentages may not add due to rounding

Americas revenues consist of sales to Americas commercial and United States (U.S.) public sector markets. During fiscal 2015, Americas revenues were favorably impacted by higher revenues from U.S. public sector markets, but unfavorably impacted by lower Americas commercial revenues. EMEA revenues were unfavorably impacted by foreign exchange rates in fiscal 2015 compared to fiscal 2014. During fiscal 2014, Americas revenues were unfavorably impacted by a decrease in sales to the U.S. public sector market. During fiscal 2013, EMEA revenues were negatively impacted by the general macroeconomic conditions in the region.

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Cost of Revenues

Our cost of revenues consists of three elements: (1) cost of product revenues, which includes the costs of manufacturing and shipping our storage products, amortization of purchased intangible assets, inventory write-downs, and warranty costs, (2) cost of software maintenance, which includes the costs of providing software maintenance and third-party royalty costs and (3) cost of hardware maintenance and other services revenues, which includes costs associated with providing support activities for hardware maintenance, global support partnership programs, professional services and educational and training services.

Our gross profit is impacted by a variety of factors, including pricing changes, discounting practices, foreign currency, product configuration, unit volumes, customer mix, revenue mix, natural disasters and product material costs. Hardware maintenance and other services gross profit is typically impacted by factors such as changes in the size of our installed base of products, as well as the timing of hardware maintenance and other services initiations and contract renewals, and incremental investments in our customer support infrastructure. If any of these factors are adversely affected, whether by economic uncertainties or for other reasons, our gross profit could decline.

Cost of Product Revenues (in millions, except percentages):

	Fiscal Year
	2015		2014		% Change			2013		% Change
Cost of product revenues	$	1,656.9	$	1,777.1		(7	)%	$	1,959.9		(9	)%

The changes in cost of product revenues consisted of the following (in percentage points of the total change):

	Fiscal 2015 to Fiscal 2014			Fiscal 2014 to Fiscal 2013
	Percentage Change Points			Percentage Change Points
Materials cost		(5	)		(7	)
Warranty		(2	)		(1	)
Excess and obsolete inventory		—			(1	)
Total change		(7	)		(9	)

Cost of product revenues represented 45%, 45% and 48% of product revenues for fiscal 2015, 2014 and 2013, respectively.

Materials cost represented 85%, 84% and 83% of product costs for fiscal 2015, 2014 and 2013, respectively.

Materials cost decreased $82.1 million in fiscal 2015 compared to fiscal 2014. Materials costs were impacted by a 5% unit volume increase in configured systems in fiscal 2015 compared to fiscal 2014. Overall materials unit cost for configured systems decreased due to a decrease in the average unit materials costs in all of our configured systems platforms, except our FAS entry level systems, which increased slightly, due to changes in product mix. The decrease in materials costs also reflects lower OEM product volume and lower costs of add-on storage. Cost of product revenues were also favorably impacted by a $35.0 million decrease in hardware-related warranty expense due to a combination of a lower installed base subject to warranty and lower estimated warranty cost per unit.

Materials cost decreased $129.0 million in fiscal 2014 compared to fiscal 2013 due to an overall decrease in average unit materials cost across all FAS platforms, reflecting increased supply chain efficiencies and favorable changes in product mix. Additionally, materials cost was favorably impacted by lower OEM product volume compared to fiscal 2013 and to lower materials cost of add-on hardware and storage. This decrease was partially offset by a 2% unit volume increase in configured systems, resulting in higher gross margins on products compared to fiscal 2013. In addition, cost of product revenues in fiscal 2014 was favorably impacted by a $24.6 million decrease in hardware-related warranty expense and a $14.1 million decrease in excess and obsolete inventory write-downs compared to fiscal 2013.

Cost of Software Maintenance Revenues (in millions, except percentages):

	Fiscal Year
	2015		2014		% Change			2013		% Change
Cost of software maintenance revenues	$	35.7	$	30.7		16	%	$	28.3		8	%

Cost of software maintenance revenues increased primarily due to higher third-party royalties in fiscal 2015 compared to fiscal 2014 and in fiscal 2014 compared to fiscal 2013. Cost of software maintenance revenues represented 4%, 3% and 3% of software maintenance revenues for fiscal 2015, 2014 and 2013, respectively.

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Cost of Hardware Maintenance and Other Services Revenues (in millions, except percentages):

	Fiscal Year
	2015		2014		% Change			2013		% Change
Cost of hardware maintenance and other services revenues	$	596.9	$	598.2		—	%	$	583.1		3	%

Cost of hardware maintenance and other services revenues were relatively flat in fiscal 2015 compared to fiscal 2014 due to lower contracted services costs, logistics, materials rework and service delivery costs, offset by an increase in spares materials costs and headcount related costs. Cost of hardware maintenance and other services revenues increased in fiscal 2014 compared to 2013 primarily due to increases in spares materials costs and a higher volume of service calls related to a higher service contract base, largely offset by headcount related savings and lower per unit logistics and service delivery costs. Costs represented 38%, 41% and 43% of hardware maintenance and other services revenues for fiscal 2015, 2014 and 2013.

Operating Expenses

Sales and Marketing, Research and Development and General and Administrative Expenses

Compensation costs comprise the largest component of operating expenses. Included in compensation costs are salaries, benefits, other compensation-related costs, stock-based compensation expense and employee incentive compensation plan costs.

Total compensation costs included in operating expenses decreased $18.4 million, or 1% during fiscal 2015 compared to fiscal 2014, primarily due to a decrease in incentive compensation costs, reflecting lower operating performance against goals, and lower stock-based compensation expense.

Total compensation costs included in operating expenses increased $28.2 million, or 2% during fiscal 2014 compared to fiscal 2013, primarily due to increases in incentive compensation reflecting stronger operating performance against goals.

Sales and Marketing (in millions, except percentages):

	Fiscal Year
	2015		2014		% Change			2013		% Change
Sales and marketing expenses	$	1,913.2	$	1,898.2		1	%	$	1,974.8		(4	)%

Sales and marketing expenses consist primarily of compensation costs, commissions, outside services, allocated facilities and IT costs, advertising and marketing promotional expense and travel and entertainment expense. The changes in sales and marketing expenses consisted of the following:

	Fiscal 2015 to Fiscal 2014			Fiscal 2014 to Fiscal 2013
	Percentage Change Points			Percentage Change Points
Compensation costs		(1	)		—
Depreciation and amortization		—			(1	)
Facilities and IT support costs		—			1
Other		2			(4	)
Total change		1			(4	)

The decrease in compensation costs during fiscal 2015 is primarily due to lower stock-based compensation and salaries expense, reflecting lower compensation cost per headcount that was partially offset by a 5% increase in headcount. In addition, foreign exchange rate changes resulted in a favorable impact of $29.1 million during fiscal 2015.

Compensation costs during fiscal 2014 reflect higher incentive compensation that was more than offset by lower stock-based compensation and salaries expense. Depreciation and amortization expense decreased during fiscal 2014 due to certain intangible assets becoming fully amortized during fiscal 2013. Facilities and IT support costs increased during fiscal 2014 due to our increased investment in sales IT systems. The decrease in other sales and marketing expenses was primarily due to our fiscal 2014 cost containment programs.

Research and Development (in millions, except percentages):

	Fiscal Year
	2015		2014		% Change			2013		% Change
Research and development expenses	$	919.3	$	917.3		—	%	$	904.2		1	%

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Research and development expenses consist primarily of compensation costs, allocated facilities and IT costs, depreciation, equipment and software related costs, prototypes, non-recurring engineering charges and other outside services costs. Changes in research and development expense consisted of the following:

	Fiscal 2015 to Fiscal 2014		Fiscal 2014 to Fiscal 2013
	Percentage Change Points		Percentage Change Points
Compensation costs		—		2
Depreciation		—		1
Development projects		—		(1	)
Other		—		(1	)
Total change		—		1

Research and development expenses were relatively flat in fiscal 2015 compared to fiscal 2014.

The increase in compensation costs during fiscal 2014 is primarily due to higher incentive compensation. Depreciation expense during fiscal 2014 increased due to higher levels of investment in engineering equipment. The decrease in development projects expense during fiscal 2014 reflects lower spending on materials and services associated with engineering activities to develop new product lines and enhancements to existing products.

We believe that our future performance will depend in large part on our ability to maintain and enhance our current product line, develop new products that achieve market acceptance, maintain technological competitiveness and meet an expanding range of customer requirements. We expect to continue to spend on current and future product development efforts, broaden our existing product offerings and introduce new products that expand our solutions portfolio.

General and Administrative (in millions, except percentages):

	Fiscal Year
	2015		2014		% Change			2013		% Change
General and administrative expenses	$	284.2	$	281.0		1	%	$	272.6		3	%

General and administrative expenses consist primarily of compensation costs, professional and corporate legal fees, outside services and allocated facilities and IT support costs. Changes in general and administrative expense consisted of the following:

	Fiscal 2015 to Fiscal 2014			Fiscal 2014 to Fiscal 2013
	Percentage Change Points			Percentage Change Points
Compensation costs		(1	)		5
Professional and legal fees and outside services		1			1
Bad debt expense		—			(2	)
Other		1			(1	)
Total change		1			3

The decrease in compensation costs during 2015 is primarily due to lower incentive compensation costs, stock-based compensation and benefits expenses, partially offset by higher salaries due to a 5% increase in headcount. The increase in professional and legal fees and outside services during 2015 reflects higher spending levels on contractors and professional services.

The increase in compensation costs in fiscal 2014 is primarily due to higher incentive compensation and to a lesser extent higher stock-based compensation and salaries expense. The increase in professional and legal fees and outside services during fiscal 2014 reflects higher fees related to legal activities, partially offset by lower spending levels on contractors and professional services. Bad debt expense in fiscal 2014 decreased $6.5 million compared to fiscal 2013.

Acquisition-related Expense (in millions, except percentages):

	Fiscal Year
	2015		2014		% Change			2013		% Change
Acquisition-related expense	$	—	$	—		—	%	$	1.7		(100	)%

During fiscal 2013, we incurred $1.7 million of acquisition costs, primarily related to severance costs associated with the termination of certain acquiree company employees.

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Restructuring and Other Charges (in millions, except percentages):

	Fiscal Year
	2015		2014		% Change			2013		% Change
Restructuring and other charges	$	—	$	88.3		(100	)%	$	—	NM

NM - Not Meaningful

In March 2014 and May 2013, we initiated business realignment plans designed to focus our resources on key strategic initiatives and streamline our business in light of the constrained IT spending environment, resulting in a reduction of our global workforce of approximately 11% in aggregate, for which we recognized an aggregate of $88.3 million of employee severance costs in fiscal 2014. We completed all activities under these plans.

Other Income (Expense), Net (in millions, except percentages)

The components of other income (expense) were as follows:

	Fiscal Year
	2015			2014			% Change			2013			% Change
Interest income	$	36.6		$	34.9			5	%	$	42.2			(17	)%
Interest expense		(42.0	)		(36.1	)		16	%		(91.7	)		(61	)%
Net gains recognized on investments		5.4			6.4			(16	)%		4.3			49	%
Net gains (losses) on foreign currency activities		(3.7	)		1.2		NM				4.0			(70	)%
Total	$	(3.7	)	$	6.4		NM			$	(41.2	)	NM

NM - Not Meaningful

The increase in interest income during fiscal 2015 was primarily due to a shift in our investment portfolio to higher-yielding investments compared to fiscal 2014. The decrease in interest income for fiscal 2014 compared to fiscal 2013 was primarily due to a decrease in our investment portfolio as a result of the liquidation of some of our investments to repay our debt obligations and to pay for stock repurchases.

Interest expense, including the amortization of debt discount and issuance costs, is primarily related to our Senior Notes and Convertible Notes as summarized below:

	Fiscal Year
	2015		2014		2013
Senior Notes	$	40.7	$	25.1	$	9.4
Convertible Notes		—		10.2		81.2
Total	$	40.7	$	35.3	$	90.6

The increases in interest expense related to our Senior Notes reflects the issuance of our Senior Notes in fiscal years 2013 and 2015, and the decreases in interest expense related to our Convertible Notes reflects their maturity in June 2013.

 Provision for Income Taxes (in millions, except percentages):

	Fiscal Year
	2015		2014		% Change			2013		% Change
Provision for income taxes	$	152.9	$	103.2		48	%	$	61.3		68	%

Our effective tax rate for fiscal 2015 was 21.5% compared to an effective tax rate of 13.9% for fiscal 2014, and an effective tax rate of 10.8% for fiscal 2013. Our effective tax rates reflect our corporate legal entity structure and the global nature of our business with a significant amount of our profits generated and taxed in foreign jurisdictions at rates below the U.S. statutory tax rate. The effective tax rates for fiscal 2013 through fiscal 2015 were favorably impacted by the geographic mix of profits. Our effective tax rate for fiscal 2015 increased compared to the prior year primarily as a result of the settlements of income tax audits, as further discussed below.

The effective tax rate of 21.5% in fiscal 2015 included a benefit of $141.0 million, or 19.8 percentage points, from foreign profits taxed at effective tax rates lower than the U.S. federal statutory rate of 35%. Other key components of our effective tax rate for the year included a benefit of $13.7 million, or 1.9 percentage points, related to current and prior year research and development credits, an expense of $5.5 million, or 0.8 percentage points, attributable to non-deductible stock-based compensation, an expense of $5.4 million, or 0.8 percentage points, related to state tax provisions, and an expense of $46.4 million, or 6.5 percentage points, in connection with income tax audits.

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The effective tax rate of 13.9% in fiscal 2014 included a benefit of $163.3 million, or 22.0 percentage points, from foreign profits taxed at effective tax rates lower than the U.S. federal statutory rate of 35%. Other key components of our effective tax rate for the year included a benefit of $8.7 million, or 1.2 percentage points, related to current year research and development credits, an expense of $9.8 million, or 1.3 percentage points, attributable to non-deductible stock-based compensation and an expense of $5.6 million, or 0.8 percentage points, related to state tax provisions.

The effective tax rate of 10.8% in fiscal 2013 included a benefit of $144.4 million, or 25.5 percentage points, from foreign profits taxed at effective tax rates lower than the U.S. federal statutory rate of 35%. Other key components of our effective tax rate for the year included a benefit of $12.1 million, or 2.1 percentage points, related to current year research and development credits, and an expense of $18.4 million, or 3.2 percentage points, attributable to non-deductible stock-based compensation.

On December 19, 2014, the federal research credit was retroactively extended for amounts paid or incurred after December 31, 2013 and before January 1, 2015. As a result of the extension, in fiscal 2015 we recorded a benefit of $9.6 million related to the fiscal 2015 research credit and a benefit of $4.1 million related to a prior year credit that we will retroactively claim. The federal research credit expired on December 31, 2014.

In July 2014, the Internal Revenue Service (IRS) completed the examination of our fiscal 2005 to 2007 income tax returns upon approval by the Joint Committee of Taxation. We recorded a $47.4 million income tax provision attributable to the audit settlement and related re-measurement of uncertain tax positions for tax years subject to future audits. The audit adjustments resulted in lower earnings in our foreign subsidiaries which reduced the taxability of dividends that were previously repatriated from such subsidiaries. Due to this reduction in taxable dividends, the conclusion of the fiscal 2005 to 2007 income tax audit resulted in a net refund of $8.0 million, excluding interest.

In October 2014, the United Kingdom’s (UK’s) tax authority concluded the examination of our fiscal 2009 to 2012 UK income tax returns. We recorded a $1.0 million income tax benefit for the net impact of the audit adjustments and related release of unrecognized tax benefits.

We are currently undergoing federal income tax audits in the United States and several foreign tax jurisdictions. Transfer pricing calculations are key issues under audits in various jurisdictions, and are often subject to dispute and appeals. The IRS is currently auditing our fiscal 2008 to 2010 income tax returns. We expect the IRS examination team to complete their field audit within the next twelve months. However, the resolution of the fiscal 2008 to 2010 income tax return audits may likely occur beyond the next twelve months should we choose to appeal the IRS examination team’s audit findings.

Our open years in U.S. federal jurisdictions are fiscal 2008 and later years. In addition, we are effectively subject to federal tax examination adjustments for tax years ended on or after fiscal year 2001, in that we have tax attribute carryforwards from these years that could be subject to adjustments, if and when utilized.

On September 17, 2010, the Danish Tax Authorities issued a decision concluding that distributions declared in 2005 and 2006 from our Danish subsidiary were subject to Danish at-source dividend withholding tax. We do not believe that our Danish subsidiary is liable for withholding tax and filed an appeal with the Danish Tax Tribunal to that effect. On December 19, 2011, the Danish Tax Tribunal issued a ruling that our Danish subsidiary was not liable for Danish withholding tax. The Danish tax examination agency appealed to the Danish High Court in March 2012. The Danish High Court hearing has not yet occurred.

We continue to monitor the progress of ongoing tax controversies and the impact, if any, of the expected expiration of the statute of limitations in various taxing jurisdictions. We engage in continuous discussion and negotiation with taxing authorities regarding tax matters in multiple jurisdictions. We believe that within the next 12 months, it is reasonably possible that either certain audits will conclude, certain statutes of limitations will lapse, or both. Given the uncertainties involved, we estimate a potential decrease in our unrecognized tax benefit balance of up to $95.4 million may occur within the next 12 months associated with the potential settlements and statute lapses.

Liquidity, Capital Resources and Cash Requirements

(In millions, except percentages)	April 24, 2015			April 25, 2014
Cash and cash equivalents and short-term investments	$	5,326.2		$	5,003.3
Principal amount of Senior Notes		1,500.0			1,000.0
Debt as a % of stockholders' equity		44	%		26	%

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The following is a summary of our cash flow activities:

	Fiscal Year
(In millions)	2015			2014
Net cash provided by operating activities	$	1,268.1		$	1,349.6
Net cash provided by (used in) investing activities		(903.2	)		760.4
Net cash used in financing activities		(675.2	)		(3,104.0	)
Effect of exchange rate changes on cash and cash equivalents		(59.2	)		7.9
Net decrease in cash and cash equivalents	$	(369.5	)	$	(986.1	)

Cash Flows

As of April 24, 2015, our cash, cash equivalents and short-term investments increased by $0.3 billion from April 25, 2014 to $5.3 billion. The increase was primarily due to $494.7 million of net proceeds received from the issuance of long-term debt and $1,268.1 million of cash provided by operating activities, partially offset by $1,165.2 million in cash paid for the repurchase of our common stock. Accounts receivable DSO was 46 days for the fourth quarter of fiscal 2015 compared to 47 days for the fourth quarter of fiscal 2014, reflecting seasonal shipment linearity. Working capital increased by $287.7 million to $4.1 billion as of April 24, 2015 primarily as a result of an increase in cash, cash equivalents and short-term investments.

Cash Flows from Operating Activities

During fiscal 2015, we generated cash from operating activities of $1.3 billion. The primary sources of cash from operating activities during fiscal 2015 consisted of net income of $559.9 million, adjusted by non-cash depreciation and amortization of $307.2 million and stock-based compensation of $259.3 million.

Changes in assets and liabilities during fiscal 2015 included the following:

· Accounts receivable decreased primarily due to lower invoicing levels.

· Accrued expenses decreased primarily due to employee compensation payouts related to fiscal year 2014 incentive compensation plans and restructuring obligations.

· Deferred revenue increased due to an increase in deferred software and hardware maintenance contract revenues.

During fiscal 2014, we generated cash from operating activities of $1.3 billion. The primary sources of cash from operating activities during fiscal 2014 consisted of net income of $637.5 million, adjusted by depreciation and amortization of $334.1 million and stock-based compensation of $273.0 million.

Changes in assets and liabilities during fiscal 2014 included the following:

· Accounts receivable increased primarily due to the impact of more back-ended shipment linearity in the fourth quarter of fiscal 2014 compared to the corresponding period in the prior year.

· Deferred revenue increased due to an increase in deferred software and hardware maintenance contract revenues.

We expect that cash provided by operating activities may materially fluctuate in future periods as a result of a number of factors, including fluctuations in our operating results, shipment linearity, accounts receivable collections performance, inventory and supply chain management, tax benefits or charges from stock-based compensation, and the timing and amount of compensation and other payments.

Cash Flows from Investing Activities

During fiscal 2015, we used $644.8 million for purchases of investments, net of maturities and sales, and paid $175.3 million for capital expenditures. In addition, we expended $84.6 million of cash on acquisitions.

During fiscal 2014, we generated $975.0 million from maturities and sales of investments, net of purchases, and paid $221.4 million for capital expenditures.

Cash Flows from Financing Activities

During fiscal 2015, we generated $494.7 million, net, from the issuance of long-term debt and used $1.2 billion for the repurchase of 29.6 million shares of our common stock and $207.4 million for the payment of dividends.

During fiscal 2014, we used $1.3 billion for the principal repayment of our Convertible Notes and used $1.9 billion for the repurchase of 47.3 million shares of our common stock and the purchase of a related forward contract and $202.3 million for the payment of dividends.

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Key factors that could affect our cash flows include changes in our revenue mix and profitability, our ability to effectively manage our working capital, in particular, accounts receivable and inventories, the timing and amount of stock repurchases and payment of cash dividends, the impact of foreign exchange rate changes, our ability to effectively integrate acquired products, businesses and technologies and the timing of repayments of our debt. Based on past performance and our current business outlook, we believe that our sources of liquidity, including potential future issuances of debt, equity or other securities, will satisfy our working capital needs, capital expenditures, investment requirements, stock repurchases, cash dividends, contractual obligations, commitments, principal and interest payments on our debt and other liquidity requirements associated with operations and meet our cash requirements for at least the next 12 months. However, in the event our liquidity is insufficient, we may be required to curtail spending and implement additional cost saving measures and restructuring actions or enter into new financing arrangements. We cannot be certain that we will continue to generate cash flows at or above current levels or that we will be able to obtain additional financing, if necessary, on satisfactory terms, if at all.

Liquidity

Our principal sources of liquidity as of April 24, 2015 consisted of cash, cash equivalents and short-term investments, as well as cash we expect to generate from operations.

Cash, cash equivalents and short-term investments consist of the following (in millions):

	April 24, 2015		April 25, 2014
Cash and cash equivalents	$	1,921.5	$	2,291.0
Short-term investments		3,404.7		2,712.3
Total	$	5,326.2	$	5,003.3

As of April 24, 2015 and April 25, 2014, $4.7 billion and $4.3 billion, respectively, of cash, cash equivalents and short-term investments were held by various foreign subsidiaries and were generally based in U.S. dollar-denominated holdings, while $0.6 billion and $0.7 billion, respectively, were available in the U.S. Most of the amounts held outside the U.S. can be repatriated to the U.S. but, under current law, would be subject to U.S. federal, state income and foreign withholding taxes. If we were to repatriate foreign earnings to fund cash requirements in the U.S., we would incur U.S. federal and state income taxes reduced by the current amount of our U.S. federal and state tax credit carryforwards. However, our intent is to keep these funds permanently reinvested outside of the U.S., and our current plans do not contemplate a need to repatriate them to fund our U.S. operations. Our principal liquidity requirements are primarily to meet our working capital needs, support ongoing business activities, fund research and development, meet capital expenditure needs, and invest in critical or complementary technologies, and service interest and principal payments on our debt.

The principal objectives of our investment policy are the preservation of principal and maintenance of liquidity. We attempt to mitigate default risk by investing in high-quality investment grade securities, limiting the time to maturity and monitoring the counter-parties and underlying obligors closely. We believe our cash equivalents and short-term investments are liquid and accessible. We are not aware of any significant deterioration in the fair value of our cash equivalents or investments from the values reported as of April 24, 2015.

Our investment portfolio has been and will continue to be exposed to market risk due to trends in the credit and capital markets. We continue to closely monitor current economic and market events to minimize the market risk of our investment portfolio. We utilize a variety of planning and financing strategies in an effort to ensure our worldwide cash is available when and where it is needed. Based on past performance and current expectations, we believe our cash and cash equivalents, investments, cash generated from operations, and ability to access capital markets and committed credit lines will satisfy, through at least the next 12 months, our liquidity requirements, both in total and domestically, including the following: working capital needs, capital expenditures, stock repurchases, cash dividends, contractual obligations, commitments, principal and interest payments on debt, and other liquidity requirements associated with our operations. We routinely monitor our financial exposure to both sovereign and non-sovereign borrowers and counterparties.

Senior Notes

The following table summarizes the principal amount of our Senior Notes as of April 24, 2015 (in millions):

2.00% Senior Notes Due 2017	$	750.0
3.375% Senior Notes Due 2021		500.0
3.25% Senior Notes Due 2022		250.0
Total	$	1,500.0

Interest on the Senior Notes is payable semi-annually. For further information on the underlying terms, see Note 10 – Financing Arrangements of the Notes to Consolidated Financial Statements.

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Credit Facility

Our credit facility, under which we may borrow up to $250.0 million, provides another potential source of liquidity. The credit facility is an unsecured five-year revolving credit facility that terminates on December 21, 2017 if no extensions have been requested by that time, and contains financial covenants requiring us to maintain a maximum leverage ratio and a minimum interest coverage ratio. We may also, subject to certain requirements, request an increase in the facility up to an additional $100.0 million and request two additional one-year extensions, subject to certain conditions. As of April 24, 2015, no borrowings were outstanding under the facility and we were in compliance with all covenants associated with the facility.

We also have an automatic shelf registration statement on file with the Securities and Exchange Commission. We may in the future offer an additional unspecified amount of debt, equity and other securities.

Capital Expenditure Requirements

We expect to fund our capital expenditures, including our commitments related to facilities, equipment, operating leases and internal-use software development projects over the next few years through existing cash, cash equivalents, investments and cash generated from operations. The timing and amount of our capital requirements cannot be precisely determined and will depend on a number of factors, including future demand for products, changes in the network storage industry, hiring plans and our decisions related to the financing of our facilities and equipment requirements. We anticipate capital expenditures for fiscal 2016 to be between $225.0 million and $275.0 million.

Dividends and Stock Repurchase Program

On May 20, 2015, we declared a cash dividend of $0.18 per share of common stock, payable on July 23, 2015 to holders of record as of the close of business on July 10, 2015.

Our Board of Directors has authorized the repurchase of up to $9.6 billion of our common stock under our stock repurchase program, including a $2.5 billion increase approved by our Board of Directors in February 2015. Under this program, we can purchase shares of our outstanding common stock through open market and privately negotiated transactions at prices deemed appropriate by our management. The stock repurchase program may be suspended or discontinued at any time. Since the May 13, 2003 inception of this program through April 24, 2015, we repurchased a total of 214.0 million shares of our common stock at an average price of $33.48 per share, for an aggregate purchase price of $7.2 billion. As of April 24, 2015, the remaining authorized amount for stock repurchases under this program was $2.5 billion with no termination date, which we plan to complete by May 2018, with the first $1 billion expected to be purchased by the end of May 2016.

The timing and amount of stock repurchase transactions and future dividends will depend on market conditions, corporate business and financial considerations and regulatory requirements.

May 2015 Restructuring Plan

On May 19, 2015, we committed to a realignment designed to drive efficiency, eliminate costs and redirect resources to highest return activities. As part of the realignment, we expect to reduce our global headcount by approximately 500 employees and to incur aggregate charges of between $25 to $35 million for employee terminations and other costs associated with the realignment. We expect that most of these charges will be cash expenditures. We expect to recognize the majority of these charges in the first quarter of fiscal 2016.

46

Contractual Obligations

The impact of contractual obligations on our liquidity and capital resources in future periods should be analyzed in conjunction with the factors that impact our cash flows from operations discussed previously. The following table summarizes our contractual obligations at April 24, 2015 (in millions):

		2016		2017		2018		2019		2020	Thereafter		Total
Off-balance sheet commitments:
Office space and equipment lease   commitments	$	61.9	$	44.0	$	29.6	$	21.0	$	17.3	$	31.7	$	205.5
Purchase commitments with contract   manufacturers (1)		295.0		—		—		—		—		—		295.0
Construction related obligations		60.0		—		—		—		—		—		60.0
Other purchase obligations (2)		131.2		41.6		20.7		7.0		4.0		6.5		211.0
Total off-balance sheet commitments		548.1		85.6		50.3		28.0		21.3		38.2		771.5
Long-term debt obligations (3)		40.0		40.0		790.0		25.0		25.0		799.7		1,719.7
Long-term financing arrangements		11.3		5.0		2.4		—		—		—		18.7
Uncertain tax positions (4)														193.2
Total	$	599.4	$	130.6	$	842.7	$	53.0	$	46.3	$	837.9	$	2,703.1
Other Commercial Commitments:
Letters of credit	$	5.2	$	1.5	$	1.2	$	—	$	0.6	$	0.8	$	9.3

⁽¹⁾ Contract manufacturer commitments consist of obligations for on-hand inventories and non-cancelable purchase orders with our contract manufacturers. We recorded a liability for firm, non-cancelable and unconditional purchase commitments with contract manufacturers for quantities in excess of our future demand forecasts through a charge to cost of product sales. As of April 24, 2015, such liability amounted to $16.9 million and is included in accrued expenses in our consolidated balance sheets.

⁽²⁾ Purchase obligations represent an estimate of all open purchase orders and contractual obligations in the ordinary course of business, other than commitments with contract manufacturers, for which we have not received the goods or services. Purchase obligations do not include contracts that may be cancelled without penalty. Although open purchase orders are considered enforceable and legally binding, the terms generally allow us the option to cancel, reschedule, and adjust our requirements based on our business needs prior to the delivery of goods or performance of services.

⁽³⁾ Included in long-term debt are obligations related to our $1.5 billion principal amount of our Senior Notes, of which $750.0 million is due in December 2017, $500.0 million is due in June 2021 and $250.0 million is due in December 2022. Estimated interest payments for our long-term debt, assuming no early retirement of debt obligations are $219.7 million for fiscal 2016 through fiscal 2023.

⁽⁴⁾ As of April 24, 2015, our liability for uncertain tax positions was $193.2 million, including interest, penalties and offsetting indirect benefits, which due to the uncertainty of the timing of future payments, are presented in the total column on a separate line in this table.

Some of the amounts in the table above are based on management’s estimates and assumptions, including the commitment duration, the possibility of renewal or termination, anticipated actions by management and third parties and other factors. Because these estimates and assumptions are subjective, our actual future obligations may vary from those reflected in the table.

Legal Contingencies

We are subject to various legal proceedings and claims which arise in the normal course of business. See further details on such matters in Note 18 – Commitments and Contingencies of the Notes to Consolidated Financial Statements.

Off-Balance Sheet Arrangements

In the ordinary course of business, we provide standby letters of credit or other guarantee instruments to third parties as required for certain transactions initiated either by us or our subsidiaries. As of April 24, 2015, our financial guarantees of $9.3 million that were not recorded on our consolidated balance sheets consisted primarily of standby letters of credit and surety bonds.

Some of our customers have entered into recourse and non-recourse financing leasing arrangements using third-party financing companies, and in some situations, we enter into customer financing arrangements for our products and services that are contemporaneously sold on a recourse or non-recourse basis to third-party financing companies. Under the terms of recourse leases, which are generally three years or less, we remain liable for the aggregate unpaid remaining lease payments to the third-party leasing companies in the event of end-user customer default. These arrangements are generally collateralized by a security interest in the underlying assets. Under the terms of the non-recourse leases, we do not have any continuing obligations or liabilities to the third-party financing companies. Where we provide a guarantee for recourse leases, we defer revenues subject to the industry-specific software revenue recognition guidance, and recognize revenues for non-software deliverables in accordance with our multiple deliverable revenue arrangement policy. In connection with certain recourse financing arrangements, we receive advance payments associated with undelivered elements that are subject to customer refund rights. We defer revenue associated with these advance payments until the related refund rights expire and we perform the services. As of April 24, 2015 and April 25, 2014, the aggregate amount by which such contingencies exceeded the associated deferred revenue was not significant. To date, we have not experienced material losses under our lease financing programs or other financing arrangements.

47

We enter into indemnification agreements with third parties in the ordinary course of business. Generally, these indemnification agreements require us to reimburse losses suffered by the third-parties due to various events, such as lawsuits arising from patent or copyright infringement. These indemnification obligations are considered off-balance sheet arrangements under accounting guidance.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

We are exposed to market risk related to fluctuations in interest rates, market prices, and foreign currency exchange rates. We use certain derivative financial instruments to manage foreign currency exchange risks. We do not use derivative financial instruments for speculative or trading purposes. All financial instruments are used in accordance with management-approved policies.

Market Risk and Market Interest Risk

Investment and Interest Income — As of April 24, 2015, we had debt investments of $3.4 billion. Our investment portfolio primarily consists of investments with original maturities greater than three months at the date of purchase, which are classified as available-for-sale investments. These investments, which consist primarily of corporate bonds, U.S. Treasury and government debt securities and certificates of deposit, are subject to interest rate and interest income risk and will decrease in value if market interest rates increase. Conversely, declines in interest rates, including the impact from lower credit spreads, could have a material adverse impact on interest income for our investment portfolio. A hypothetical 100 basis point increase in market interest rates from levels as of April 24, 2015 would have resulted in a decrease in the fair value of our fixed-income securities of approximately $45 million. Volatility in market interest rates over time will cause variability in our interest income. We do not use derivative financial instruments in our investment portfolio.

Our investment policy is to limit credit exposure through diversification and investment in highly rated securities. We further mitigate concentrations of credit risk in our investments by limiting our investments in the debt securities of a single issuer and by diversifying risk across geographies and type of issuer. We actively review, along with our investment advisors, current investment ratings, company-specific events and general economic conditions in managing our investments and in determining whether there is a significant decline in fair value that is other-than-temporary. We monitor and evaluate our investment portfolio on a quarterly basis for any other-than-temporary impairments.

Debt — As of April 24, 2015, we have outstanding $1.5 billion aggregate principal amount of Senior Notes. We carry these instruments at face value less unamortized discount on our consolidated balance sheets. Since these instruments bear interest at fixed rates, we have no financial statement risk associated with changes in interest rates. However, the fair value of these instruments fluctuates when interest rates change. See Note 10 – Financing Arrangements of the Notes to Consolidated Financial Statements for more information.

Credit Facility — We are exposed to the impact of changes in interest rates in connection with our $250.0 million five-year revolving credit facility. Borrowings under the facility accrue interest at rates that vary based on certain market rates and our credit rating on our Senior Notes. Consequently, our interest expense would fluctuate with any changes in these market interest rates or in our credit rating if we were to borrow any amounts under the credit facility. As of April 24, 2015, no amounts were outstanding under the credit facility.

Foreign Currency Exchange Rate Risk

We hedge risks associated with foreign currency transactions to minimize the impact of changes in foreign currency exchange rates on earnings. We utilize foreign currency exchange forward and option contracts to hedge against the short-term impact of foreign currency fluctuations on certain foreign currency denominated monetary assets and liabilities. We also use foreign currency exchange forward contracts to hedge foreign currency exposures related to forecasted sales transactions denominated in certain foreign currencies. These derivatives are designated and qualify as cash flow hedges under accounting guidance for derivatives and hedging.

We do not enter into foreign currency exchange contracts for speculative or trading purposes. In entering into foreign currency exchange forward and option contracts, we have assumed the risk that might arise from the possible inability of counterparties to meet the terms of the contracts. We attempt to limit our exposure to credit risk by executing foreign currency exchange contracts with creditworthy multinational commercial banks. All contracts have a maturity of less than six months. See Note 12 – Derivatives and Hedging Activities of the Notes to Consolidated Financial Statements for more information regarding our derivatives and hedging activities.

48

Item 8. Financial Statements and Supplementary Data

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Consolidated Balance Sheets as of April 24, 2015 and April 25, 2014	50
Consolidated Statements of Operations for the years ended April 24, 2015, April 25, 2014 and April 26, 2013	51
Consolidated Statements of Comprehensive Income for the years ended April 24, 2015, April 25, 2014 and April 26, 2013	52
Consolidated Statements of Cash Flows for the years ended April 24, 2015, April 25, 2014 and April 26, 2013	53
Consolidated Statements of Stockholders’ Equity for the years ended April 24, 2015, April 25, 2014 and April 26, 2013	54
Notes to Consolidated Financial Statements	55
Selected Quarterly Financial Data (Unaudited)	82
Reports of Independent Registered Public Accounting Firm	83

49

NETAPP, INC.

CONSOLIDATED BALANCE SHEETS

	April 24, 2015			April 25, 2014
	(In millions, except par value)
ASSETS
Current assets:
Cash and cash equivalents	$	1,921.5		$	2,291.0
Short-term investments		3,404.7			2,712.3
Accounts receivable		778.9			855.9
Inventories		146.5			122.4
Other current assets		521.8			489.7
Total current assets		6,773.4			6,471.3
Property and equipment, net		1,029.9			1,108.8
Goodwill		1,027.4			988.1
Other intangible assets, net		89.5			121.5
Other non-current assets		481.0			524.1
Total assets	$	9,401.2		$	9,213.8
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
Accounts payable	$	283.4		$	247.0
Accrued expenses		701.4			793.8
Short-term deferred revenue		1,724.2			1,653.8
Total current liabilities		2,709.0			2,694.6
Long-term debt		1,487.5			990.1
Other long-term liabilities		317.6			296.2
Long-term deferred revenue		1,473.0			1,446.4
Total liabilities		5,987.1			5,427.3
Commitments and contingencies (Note 18)
Stockholders' equity:
Preferred stock, $0.001 par value, 5.0 shares authorized; no shares issued    or outstanding as of April 24, 2015 or April 25, 2014		—			—
Common stock, $0.001 par value, (306.1 and 324.5 shares issued and    outstanding as of April 24, 2015 and April 25, 2014, respectively)		0.3			0.3
Additional paid-in capital		3,384.3			3,776.0
Retained earnings		53.2			1.1
Accumulated other comprehensive income (loss)		(23.7	)		9.1
Total stockholders' equity		3,414.1			3,786.5
Total liabilities and stockholders' equity	$	9,401.2		$	9,213.8

See accompanying notes to consolidated financial statements.

50

NETAPP, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

	Year Ended
	April 24, 2015			April 25, 2014		April 26, 2013
	(In millions, except per share amounts)
Revenues:
Product	$	3,654.6		$	3,943.9	$	4,092.3
Software maintenance		898.6			914.8		893.5
Hardware maintenance and other services		1,569.5			1,466.4		1,346.6
Net revenues		6,122.7			6,325.1		6,332.4
Cost of revenues:
Cost of product		1,656.9			1,777.1		1,959.9
Cost of software maintenance		35.7			30.7		28.3
Cost of hardware maintenance and other services		596.9			598.2		583.1
Total cost of revenues		2,289.5			2,406.0		2,571.3
Gross profit		3,833.2			3,919.1		3,761.1
Operating expenses:
Sales and marketing		1,913.2			1,898.2		1,974.8
Research and development		919.3			917.3		904.2
General and administrative		284.2			281.0		272.6
Restructuring and other charges		—			88.3		—
Acquisition-related expense		—			—		1.7
Total operating expenses		3,116.7			3,184.8		3,153.3
Income from operations		716.5			734.3		607.8
Other income (expense), net		(3.7	)		6.4		(41.2	)
Income before income taxes		712.8			740.7		566.6
Provision for income taxes		152.9			103.2		61.3
Net income	$	559.9		$	637.5	$	505.3
Net income per share:
Basic	$	1.77		$	1.87	$	1.40
Diluted	$	1.75		$	1.83	$	1.37
Shares used in net income per share calculations:
Basic		315.5			340.3		361.5
Diluted		320.7			347.9		368.0

See accompanying notes to consolidated financial statements.

51

NETAPP, INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

.	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
	(In millions)
Net income	$	559.9		$	637.5		$	505.3
Other comprehensive income (loss):
Foreign currency translation adjustments		(28.3	)		3.5			(2.9	)
Defined benefit obligations:
Defined benefit obligation adjustments		(11.8	)		0.7			(3.9	)
Reclassification adjustments related to defined     benefit obligations		0.3			0.6			—
Income tax effect on defined benefit obligations		3.9			(0.4	)		2.6
Unrealized gains (losses) on available-for-sale securities:
Unrealized holding gains (losses) arising during the period		2.0			(2.5	)		7.3
Reclassification adjustments for gains included in     net income		(0.3	)		(1.3	)		(0.6	)
Income tax effect on unrealized holding (gains) losses		0.3			1.3			(0.2	)
Unrealized gains (losses) on cash flow hedges:
Unrealized holding gains (losses) arising during the period		15.5			(3.5	)		3.7
Reclassification adjustments for (gains) losses included in     net income		(14.4	)		2.0			(2.2	)
Other comprehensive income (loss)		(32.8	)		0.4			3.8
Comprehensive income	$	527.1		$	637.9		$	509.1

See accompanying notes to consolidated financial statements.

52

NETAPP, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
	(In millions)
Cash flows from operating activities:
Net income	$	559.9		$	637.5		$	505.3
Adjustments to reconcile net income to net cash provided by    operating activities:
Depreciation and amortization		307.2			334.1			344.6
Stock-based compensation		259.3			273.0			276.6
Accretion of discount and issuance costs on long-term debt		2.7			9.7			60.2
Deferred income taxes		(2.7	)		(76.0	)		(76.6	)
Excess tax benefit from stock-based compensation		(55.2	)		(52.5	)		(72.9	)
Other non-cash items, net		31.9			17.6			70.6
Changes in assets and liabilities, net of acquisitions of businesses:
Accounts receivable		74.8			(56.6	)		23.1
Inventories		(24.1	)		17.0			22.0
Other operating assets		13.0			74.6			(77.3	)
Accounts payable		38.6			(12.1	)		25.1
Accrued expenses		(66.7	)		32.3			53.5
Deferred revenue		122.1			106.6			198.1
Other operating liabilities		7.3			44.4			34.0
Net cash provided by operating activities		1,268.1			1,349.6			1,386.3
Cash flows from investing activities:
Purchases of investments		(2,596.8	)		(1,018.5	)		(2,287.7	)
Maturities, sales and collections of investments		1,952.0			1,993.5			2,464.7
Purchases of property and equipment		(175.3	)		(221.4	)		(303.3	)
Acquisitions of businesses		(84.6	)		—			(106.5	)
Other investing activities, net		1.5			6.8			4.2
Net cash provided by (used in) investing activities		(903.2	)		760.4			(228.6	)
Cash flows from financing activities:
Issuance of common stock under employee stock award plans		156.9			201.4			110.6
Repurchase of common stock and forward contract		(1,165.2	)		(1,881.5	)		(590.0	)
Excess tax benefit from stock-based compensation		55.2			52.5			72.9
Repayment of debt		—			(1,264.9	)		—
Issuance of long-term debt, net		494.7			—			987.3
Dividends paid		(207.4	)		(202.3	)		—
Other financing activities, net		(9.4	)		(9.2	)		(1.9	)
Net cash provided by (used in) financing activities		(675.2	)		(3,104.0	)		578.9
Effect of exchange rate changes on cash and cash equivalents		(59.2	)		7.9			(9.3	)
Net increase (decrease) in cash and cash equivalents		(369.5	)		(986.1	)		1,727.3
Cash and cash equivalents:
Beginning of year		2,291.0			3,277.1			1,549.8
End of year	$	1,921.5		$	2,291.0		$	3,277.1

See accompanying notes to consolidated financial statements.

53

NETAPP, INC.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

	Common Stock									Treasury Stock									Accumulated
							Additional												Other
							Paid-in									Retained			Comprehensive
	Shares			Amount			Capital			Shares			Amount			Earnings			Income (Loss)			Total
	(In millions, except per share amounts)
Balances, April 27, 2012		468.9		$	0.5		$	4,410.3			(104.3	)	$	(2,927.4	)	$	2,805.3		$	4.9		$	4,293.6
Net income		—			—			—			—			—			505.3			—			505.3
Other comprehensive income		—			—			—			—			—			—			3.8			3.8
Reclassification of equity component of convertible notes		—			—			62.6			—			—			—			—			62.6
Issuance of common stock under employee stock award plans, net of taxes		10.1			—			110.6			—			—			—			—			110.6
Repurchase of common stock		(18.1	)		—			(176.2	)		—			—			(413.8	)		—			(590.0	)
Stock-based compensation		—			—			276.6			—			—			—			—			276.6
Income tax benefit from employee stock transactions		—			—			53.8			—			—			—			—			53.8
Vested options assumed in acquisition		—			—			1.2			—			—			—			—			1.2
Balances, April 26, 2013		460.9			0.5			4,738.9			(104.3	)		(2,927.4	)		2,896.8			8.7			4,717.5
Net income		—			—			—			—			—			637.5			—			637.5
Other comprehensive income		—			—			—			—			—			—			0.4			0.4
Issuance of common stock under employee stock award plans, net of taxes		13.1			—			201.4			—			—			—			—			201.4
Conversion of convertible notes		4.9			—			—			—			—			—			—			—
Exercise of convertible note hedges		(3.9	)		—			—			—			—			—			—			—
Exercise of warrants		1.1			—			—			—			—			—			—			—
Repurchase of common stock and forward contract		(47.3	)		(0.1	)		(813.4	)		—			—			(1,068.0	)		—			(1,881.5	)
Retirement of treasury stock		(104.3	)		(0.1	)		(614.0	)		104.3			2,927.4			(2,313.3	)		—			—
Stock-based compensation		—			—			273.0			—			—			—			—			273.0
Income tax benefit from employee stock transactions		—			—			40.5			—			—			—			—			40.5
Cash dividends declared ($0.60 per common share)		—			—			(50.4	)		—			—			(151.9	)		—			(202.3	)
Balances, April 25, 2014		324.5			0.3			3,776.0			—			—			1.1			9.1			3,786.5
Net income		—			—			—			—			—			559.9			—			559.9
Other comprehensive loss		—			—			—			—			—			—			(32.8	)		(32.8	)
Issuance of common stock under employee stock award plans, net of taxes		11.2			—			156.9			—			—			—			—			156.9
Repurchase of common stock		(29.6	)		—			(812.8	)		—			—			(352.4	)		—			(1,165.2	)
Stock-based compensation		—			—			259.3			—			—			—			—			259.3
Income tax benefit from employee stock transactions		—			—			56.9			—			—			—			—			56.9
Cash dividends declared ($0.66 per common share)		—			—			(52.0	)		—			—			(155.4	)		—			(207.4	)
Balances, April 24, 2015		306.1		$	0.3		$	3,384.3			—		$	—		$	53.2		$	(23.7	)	$	3,414.1

See accompanying notes to consolidated financial statements.

54

NETAPP, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

1. Description of Business and Significant Accounting Policies

Description of Business —NetApp, Inc. (we, us, or the Company) provide software, systems and services to manage and store computer data. We enable enterprises, service providers, governmental organizations, and original equipment manufacturers to envision, deploy and evolve their information technology environments and to reduce costs and risk while driving growth and success for their organizations.

Fiscal Year — Our fiscal year is reported on a 52- or 53-week year that ends on the last Friday in April. Our fiscal years 2015, 2014 and 2013 ended on April 24, 2015, April 25, 2014 and April 26, 2013, respectively, and were each 52-week years. An additional week is included in the first fiscal quarter approximately every six years to realign fiscal months with calendar months. Fiscal year 2016 will span 53 weeks, with a 14th week included in the first quarter of fiscal 2016. Unless otherwise stated, references to particular years, quarters, months and periods refer to the Company’s fiscal years ended on the last Friday of April and the associated quarters, months and periods of those fiscal years.

Principles of Consolidation — The consolidated financial statements include the Company and its subsidiaries. Intercompany accounts and transactions are eliminated in consolidation.

Accounting Change — In our fourth quarter of fiscal 2015, we adopted an Accounting Standards Update (ASU) that simplifies the presentation of debt issuance costs by requiring them to be presented as a direct deduction from the carrying amount of the related debt liability, rather than as a deferred charge, consistent with debt discounts. The new guidance was applied on a retrospective basis to April 25, 2014. The amended presentation of debt issuance costs resulted in a $7.5 million and $5.4 million reduction of each of other non-current assets and long-term debt in the consolidated balance sheets as of April 24, 2015 and April 25, 2014, respectively.

Use of Estimates — The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Such estimates include, but are not limited to, revenue recognition, reserves and allowances; inventory valuation and purchase order accruals; valuation of goodwill and intangibles; restructuring reserves; product warranties; employee benefit accruals; stock-based compensation; loss contingencies; investment impairments; income taxes and fair value measurements. Actual results could differ materially from those estimates.

Cash Equivalents — We consider all highly liquid debt investments with original maturities of three months or less at the time of purchase to be cash equivalents.

Available-for-Sale Investments — We classify our investments in debt securities as available-for-sale investments. Debt securities primarily consist of corporate bonds, U.S. Treasury and government debt securities and certificates of deposit. These available-for-sale investments are primarily held in the custody of a major financial institution. A specific identification method is used to determine the cost basis of debt securities sold. These investments are recorded in the consolidated balance sheets at fair value.

Unrealized gains and temporary losses, net of related taxes, are included in accumulated other comprehensive income (loss) (AOCI). Upon realization, those amounts are reclassified from AOCI to earnings. The amortization of premiums and discounts on the investments are included in our results of operations. Realized gains and losses on our available-for-sale investments are calculated based on the specific identification method.

We classify our investments as current or noncurrent based on the nature of the investments and their availability for use in current operations.

Other-than-Temporary Impairments on Investments — All of our available-for-sale investments are subject to periodic impairment review. When the fair value of a debt security is less than its amortized cost, it is deemed impaired, and we assess whether the impairment is other-than-temporary. An impairment is considered other-than-temporary if (i) we have the intent to sell the security, (ii) it is more likely than not that we will be required to sell the security before recovery of the entire amortized cost basis, or (iii) we do not expect to recover the entire amortized cost basis of the security. If impairment is considered other-than-temporary based on condition (i) or (ii) described above, the entire difference between the amortized cost and the fair value of the debt security is recognized in the results of operations. If an impairment is considered other-than-temporary based on condition (iii) described above, the amount representing credit losses (defined as the difference between the present value of the cash flows expected to be collected and the amortized cost basis of the debt security) is recognized in earnings, and the amount relating to all other factors is recognized in other comprehensive income (OCI).

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For our auction rate securities (ARSs), impairment was determined based on fair value and marketability of these investments. The valuation models used to estimate fair value include numerous assumptions such as assessments of the underlying structure of each security, expected cash flows, discount rates, trading activity in the secondary market for similar securities, credit ratings, workout periods, and overall capital market liquidity.

Inventories — Inventories are stated at the lower of cost or market, which approximates actual cost on a first-in, first-out basis. We write down excess and obsolete inventory based on the difference between the cost of inventory and the estimated net realizable value based upon assumptions about future demand forecasts and market conditions. At the point of a loss recognition, a new, lower cost basis for that inventory is established, and subsequent changes in facts or circumstances do not result in the restoration or increase in that newly established basis. In addition, we record a liability for firm, non-cancelable and unconditional purchase commitments with contract manufacturers and suppliers for quantities in excess of our future demand forecasts consistent with our valuation of excess and obsolete inventory.

Property and Equipment — Property and equipment are recorded at cost.

Depreciation and amortization is computed using the straight-line method, generally over the following periods:

	Depreciation Life
Buildings and improvements	10 to 40 years
Furniture and fixtures	5 years
Computer, production, engineering and other equipment	2 to 3 years
Computer software	3 to 5 years
Leasehold improvements	Shorter of remaining lease term or useful life

Construction in progress will be depreciated over the estimated useful lives of the respective assets when they are ready for use. We capitalize interest on significant facility assets under construction and on significant software development projects.

Software Development Costs — The costs for the development of new software products and substantial enhancements to existing software products are expensed as incurred until technological feasibility has been established, at which time any additional costs would be capitalized in accordance with the accounting guidance for software. Because our current process for developing software is essentially completed concurrently with the establishment of technological feasibility, which occurs upon the completion of a working model, no costs have been capitalized for any of the periods presented.

Internal-Use Software Development Costs — We capitalize qualifying costs, which are incurred during the application development stage, for computer software developed or obtained for internal-use and amortize them over the software’s estimated useful life.

Business Combinations — We recognize identifiable assets acquired and liabilities assumed at their acquisition date fair values. Goodwill as of the acquisition date is measured as the excess of consideration transferred over the net of the acquisition date fair values of the assets acquired and the liabilities assumed. While we use our best estimates and assumptions as a part of the purchase price allocation process to accurately value assets acquired and liabilities assumed at the acquisition date, our estimates are inherently uncertain and subject to refinement. As a result, during the measurement period, which may be up to one year from the acquisition date, we record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill to the extent that we identify adjustments to the preliminary purchase price allocation. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to our consolidated statements of operations.

Goodwill and Purchased Intangible Assets — Goodwill is recorded when the consideration paid for an acquisition exceeds the fair value of net tangible and intangible assets acquired. Purchased intangible assets are amortized on a straight-line basis over their economic lives of three to six years for developed technology, two to eight years for customer contracts/relationships, two to three years for covenants not to compete and two to seven years for trademarks and trade names as we believe this method most closely reflects the pattern in which the economic benefits of the assets will be consumed.

The carrying value of goodwill is tested for impairment on an annual basis in the fourth quarter of our fiscal year, or more frequently if we believe indicators of impairment exist. Triggering events for impairment reviews may be indicators such as adverse industry or economic trends, restructuring actions, lower projections of profitability, or a sustained decline in our market capitalization. The performance of the test involves a two-step process. The first step requires comparing the fair value of each of our reporting units to its net book value, including goodwill. We have three reporting units, the fair values of which are determined based on an allocation of our entity level market capitalization, as determined through quoted market prices. A potential impairment exists if the fair value of the reporting unit is lower than its net book value. The second step of the process is only performed if a potential impairment exists, and it involves determining the difference between the fair value of the reporting unit’s net assets other than goodwill and the fair value of the reporting unit. If that difference is less than the net book value of goodwill, an impairment exists and

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is recorded. We have not been required to perform this second step of the process because the fair values of each of our reporting units have exceeded their respective net book values in fiscal 2015, 2014 and 2013.

Impairment of Long-Lived Assets — We review the carrying values of long-lived assets whenever events and circumstances, such as reductions in demand, lower projections of profitability, significant changes in the manner of our use of acquired assets, or significant negative industry or economic trends, indicate that the net book value of an asset may not be recovered through expected future cash flows from its use and eventual disposition. If this review indicates that there is an impairment, the impaired asset is written down to its fair value, which is typically calculated using: (i) quoted market prices and/or (ii) expected future cash flows utilizing a discount rate. Our estimates regarding future anticipated net revenue and cash flows, the remaining economic life of the products and technologies, or both, may differ from those used to assess the recoverability of assets. In that event, impairment charges or shortened useful lives of certain long-lived assets may be required, resulting in charges to our consolidated statements of operations when such determinations are made.

Derivative Instruments — Our derivative instruments consist of foreign currency exchange contracts as described below:

Balance Sheet Hedges — We utilize foreign currency exchange forward and option contracts to hedge against the short-term impact of foreign currency exchange rate fluctuations related to certain foreign currency denominated monetary assets and liabilities, primarily intercompany receivables and payables. These derivative instruments are not designated as hedging instruments and do not subject us to material balance sheet risk due to exchange rate movements because the gains and losses on these contracts are intended to offset the gains and losses in the underlying foreign currency denominated monetary assets and liabilities being hedged and the net amount is included in earnings.

Cash Flow Hedges — We use foreign currency exchange forward contracts to hedge foreign currency exchange exposures related to forecasted sales transactions denominated in certain foreign currencies. These derivative instruments are designated and qualify as cash flow hedges and in general, closely match the underlying forecasted transactions in duration. The contracts are carried in the consolidated balance sheets at fair value, and the effective portion of the contracts’ gains and losses resulting from changes in fair value is recorded in AOCI until the forecasted transaction is recognized in the consolidated statements of operations. When the forecasted transactions occur, we reclassify the related gains or losses on the cash flow hedges into net revenues. If the underlying forecasted transactions do not occur, or it becomes probable that they will not occur within the defined hedge period, the gains or losses on the related cash flow hedges are reclassified from AOCI and recognized immediately in earnings. We measure the effectiveness of hedges of forecasted transactions on a monthly basis by comparing the fair values of the designated foreign currency exchange forward purchase contracts with the fair values of the forecasted transactions. Any ineffective portion of the derivative hedging gain or loss, as well as changes in the fair value of the derivative’s time value (which are excluded from the assessment of hedge effectiveness), are recognized in earnings.

Factors that could have an impact on the effectiveness of our hedging programs include the accuracy of forecasts and the volatility of foreign currency markets. These programs reduce, but do not entirely eliminate, the impact of currency exchange movements. Currently, we do not enter into any foreign currency exchange forward contracts to hedge exposures related to firm commitments or nonmarketable investments. Cash flows from our derivative programs are included under operating activities in the consolidated statements of cash flows.

Revenue Recognition — We recognize revenue when:

· Persuasive evidence of an arrangement exists. Customarily we have a purchase order and/or contract prior to recognizing revenue on an arrangement from our end users, customers, value-added resellers or distributors.

· Delivery has occurred. Our product is physically delivered to our customers. We typically do not allow for restocking rights with any of our value-added resellers or distributors. Products shipped with acceptance criteria or return rights are not recognized as revenue until all criteria are achieved. We do not recognize revenue if undelivered products or services exist that are essential to the functionality of the delivered product in an arrangement.

· The fee is fixed or determinable. Arrangements with payment terms extending beyond our standard terms, conditions and practices are not considered to be fixed or determinable. Revenue from such arrangements is recognized at the earlier of customer payment or when the fees become due and payable. We typically do not allow for price-protection rights with any of our value-added resellers or distributors.

· Collection is reasonably assured. If there is considerable doubt surrounding the creditworthiness of a customer at the outset of an arrangement, the associated revenue is deferred and recognized upon cash receipt.

The hardware systems and software components essential to the functionality of the hardware systems are considered non-software deliverables and therefore are not subject to industry-specific software revenue recognition guidance.

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Our product revenues also include revenues from the sale of non-essential software products. Non-essential software sales generally include a perpetual license to our software. Non-essential software sales are subject to the industry-specific software revenue recognition guidance.

Our multiple element arrangements may include our systems, software maintenance, hardware maintenance and other services. Software maintenance contracts entitle our customers to receive unspecified product upgrades and enhancements on a when-and-if-available basis, and patch releases. Hardware maintenance services include contracts for extended warranty, technical support and minimum response times. Other services include professional services and customer education and training services. Revenues from software maintenance and hardware maintenance services are recognized ratably over the contractual term, generally from one to five years. We also offer extended warranty contracts (which extend our standard parts warranty and may include premium hardware maintenance) at the end of the original warranty term; revenues from these contracts are recognized ratably over their respective contract term. We sell professional services either on a time and materials basis or under fixed price projects; we recognize revenue for these services as they are performed.

For multiple element arrangements, we allocate revenue to the software deliverables and the non-software deliverables as a group based on the relative selling prices of all of the deliverables in the arrangement. The selling price for each element is based upon the following selling price hierarchy: vendor specific objective evidence of selling price (VSOE) if available, third party evidence (TPE) if VSOE is not available, or estimated selling price (ESP) if neither VSOE nor TPE are available. ESP is generally evidenced by a majority of historical transactions falling within a reasonable price range. We also consider multiple factors, including, but not limited to, cost of products, gross margin objectives, historical pricing practices, type of customer and distribution channels. For our non-software deliverables, we generally allocate the arrangement consideration based on the relative selling price of the deliverables using ESP. For our software maintenance services, we generally use VSOE. When we are unable to establish VSOE for our software maintenance services, we use ESP in our allocation of arrangement consideration.

VSOE is based upon the normal pricing and discounting practices for those services when sold separately. VSOE is generally evidenced by a substantial majority of historical stand-alone transactions falling within a reasonably narrow range. In addition, we consider major service type, customer type, and other variables in determining VSOE.

When VSOE cannot be established, we attempt to establish the selling price of each element based on third party evidence of selling price (TPE). Generally, we are not able to determine TPE because our go-to-market strategy differs from that of our peers and our offerings contain a significant level of differentiation such that the comparable pricing of products with similar functionality cannot be obtained.

We regularly review VSOE, TPE, and ESP and maintain internal controls over the establishment and updates of these estimates.

For our software deliverables, we use the residual method to recognize revenue when an arrangement includes one or more elements to be delivered at a future date and VSOE of all undelivered elements exists. Typically, only software maintenance, hardware maintenance and/or other services remain undelivered after the product is delivered. Under the residual method, the fair value of the undelivered elements is deferred and the remaining portion of the consideration is recognized as product revenues for delivered elements. If evidence of the fair value of one or more undelivered elements does not exist, all revenue is generally deferred until the earlier of when delivery of those elements occurs or when fair value can be established. In instances where the only undelivered element without fair value is software maintenance, the entire arrangement is recognized ratably over the maintenance period.

We record reductions to revenue for estimated sales returns at the time of shipment. Sales returns are estimated based on historical sales returns, current trends, and our expectations regarding future experience. We monitor and analyze the accuracy of sales returns estimates by reviewing actual returns and adjust them for future expectations. Additionally, distributors and retail partners participate in various cooperative marketing and other programs, and we record estimated accruals and allowances for these programs. We accrue for these programs based on contractual terms and historical experience. Sales and value added taxes collected from customers and remitted to governmental authorities are presented on a net basis in the accompanying consolidated statements of operations.

Product Warranties — Estimated future hardware and software warranty costs are recorded as a cost of product revenues at the time of product shipment, based on historical and projected warranty claim rates, historical and projected cost-per-claim and knowledge of specific product failures that are outside our typical experience. Factors that affect our warranty liability include the number of installed units subject to warranty protection, product failure rates, estimated material costs, estimated distribution costs and estimated labor costs. We assess the adequacy of our warranty accrual each quarter and adjust the amount as considered necessary.

Foreign Currency Translation — For international subsidiaries whose functional currency is the local currency, gains and losses resulting from translation of these foreign currency financial statements into U.S. dollars are recorded in AOCI. For subsidiaries where the functional currency is the U.S. dollar, gains and losses resulting from the process of remeasuring foreign currency financial statements into U.S. dollars are included in other income (expense), net.

Benefit Plans — We have a postretirement health care plan and various international defined benefit plans for certain of our employees. We record actuarial gains and losses within AOCI and amortize net gains or losses in excess of 10 percent of the greater of

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the market value of plan assets or the plans' projected benefit obligation on a straight-line basis over the remaining estimated service life of plan participants. The measurement date for all defined benefit plans is our fiscal year end.

Stock-Based Compensation — We measure and recognize stock-based compensation for all stock-based awards, including employee stock options, restricted stock units (RSUs) and rights to purchase shares under our employee stock purchase plan (ESPP), based on their estimated fair value, and recognize the costs in our financial statements using the single option straight-line approach over the requisite service period for the entire award.

The fair value of employee RSUs is equal to the market value of our common stock on the grant date of the award, less the present value of expected dividends during the vesting period, discounted at a risk-free interest rate. Calculating the fair value of employee stock options and the rights to purchase shares under the ESPP requires estimates and significant judgment. The fair value of each award is estimated on the grant date using the Black-Scholes option pricing model, and is not remeasured as a result of subsequent stock price fluctuations. Option-pricing models require the input of highly subjective assumptions, including the expected term of awards and the stock price volatility of the underlying stock of such awards. Our expected term assumption is based primarily on historical exercise and post-vesting forfeiture experience. Effective fiscal 2013, our stock price volatility assumption is based on a combination of our historical and implied volatility, whereas prior to fiscal 2013, we solely used implied volatility.

In addition, the Black-Scholes option pricing model requires risk-free interest rates and expected dividends. The risk-free interest rates are based upon United States Treasury bills with equivalent expected terms, and the expected dividends are based on our history and expected dividend payouts.

We estimate the number of stock-based awards that will be forfeited due to employee turnover. Our forfeiture assumption is primarily based on historical experience.

In the event of a modification of stock-based awards, if the requisite service period of the modified award is longer than the requisite service period of the original award and, both before and after the modification, it is probable that the awards will vest, we recognize the unrecognized compensation cost remaining from the original award plus the incremental compensation cost, if any, as a result of a modification in its entirety over the remaining portion of the requisite service period of the modified award.

Income Taxes — Deferred income tax assets and liabilities are provided for temporary differences that will result in tax deductions or income in future periods, as well as the future benefit of tax credit carryforwards. A valuation allowance reduces tax assets to their estimated realizable value. Significant judgment is required in determining any valuation allowance recorded against deferred tax assets. In assessing the need for a valuation allowance, we consider all available evidence, including past operating results, estimates of future taxable income, and the feasibility of tax planning strategies. In the event that we change our determination as to the amount of deferred tax assets that can be realized, we adjust our valuation allowance with a corresponding impact to the provision for income taxes in the period in which such determination is made.

The accounting guidance for income taxes prescribes a comprehensive model for how a company should recognize, measure, present, and disclose in its financial statements uncertain tax positions that we have taken or expect to take on a tax return (including a decision whether to file or not to file a return in a particular jurisdiction). We recognize the tax liability for uncertain income tax positions on the income tax return based on the two-step process prescribed in the interpretation. The first step is to determine whether it is more likely than not that each income tax position would be sustained upon audit. The second step is to estimate and measure the tax benefit as the amount that has a greater than 50% likelihood of being realized upon ultimate settlement with the tax authority. Estimating these amounts requires us to determine the probability of various possible outcomes. We evaluate these uncertain tax positions on a quarterly basis. The Company recognizes interest and penalties related to unrecognized tax benefits within the income tax expense line in the accompanying consolidated statement of operations.

Determining the liability for uncertain tax positions requires us to make significant estimates and judgments as to whether, and the extent to which, additional taxes may be due based on potential tax audit issues in the U.S. and other tax jurisdictions throughout the world. Our estimates are based on the outcomes of previous audits, as well as the precedents set in cases in which others have taken similar tax positions to those taken by us. If we later determine that our exposure is lower or that the liability is not sufficient to cover our revised expectations, we adjust the liability and effect a related change in our tax provision during the period in which we make such a determination.

Tax attributes related to the exercise of employee stock options are not realized until they result in a reduction of taxes payable. We do not include unrealized stock option attributes as components of our gross deferred tax assets and corresponding valuation allowance disclosures.

Net Income per Share — Basic net income per share is computed by dividing income available to common stockholders by the weighted-average number of common shares outstanding. Diluted net income per share is computed giving effect to all dilutive potential shares that were outstanding during the period. Potential dilutive common shares can consist of outstanding stock options, shares to be purchased under our employee stock purchase plan and unvested RSUs, as well as outstanding warrants and shares to be issued upon the conversion of convertible notes.

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Treasury Stock — We account for treasury stock under the cost method. Upon the retirement of treasury stock, we allocate the value of treasury shares between common stock, additional paid-in capital and retained earnings.

2. Concentration of Risk

Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash equivalents, investments, foreign currency exchange contracts and accounts receivable. Cash equivalents and short-term investments consist primarily of corporate bonds, U.S. Treasury and government debt securities and certificates of deposit, all of which are considered high investment grade. Our policy is to limit the amount of credit exposure through diversification and investment in highly rated securities. We further mitigate concentrations of credit risk in our investments by limiting our investments in the debt securities of a single issuer and by diversifying risk across geographies and type of issuer.

By entering into foreign currency exchange contracts, we have assumed the risk that might arise from the possible inability of counterparties to meet the terms of their contracts. The counterparties to these contracts are major multinational commercial banks, and we do not expect any losses as a result of counterparty defaults.

We sell our products primarily to large organizations in different industries and geographies. We do not require collateral or other security to support accounts receivable. In addition, we maintain an allowance for potential credit losses. To reduce credit risk, we perform ongoing credit evaluations on our customers’ financial condition. We establish an allowance for doubtful accounts based upon factors surrounding the credit risk of customers, historical trends and other information and, to date, such losses have been within management’s expectations. Concentrations of credit risk with respect to trade accounts receivable are limited due to the wide variety of customers who are dispersed across many geographic regions.

There are no concentrations of business transacted with a particular market that would severely impact our business in the near term. However, we rely on a limited number of suppliers for certain key components and a few key contract manufacturers to manufacture most of our products; any disruption or termination of these arrangements could materially adversely affect our operating results.

3. Recent Accounting Standards Not Yet Effective

In April 2014, the Financial Accounting Standards Board (FASB) issued an ASU that changes the criteria for reporting discontinued operations and expands related disclosure requirements. This accounting standard will be effective for us beginning in our first quarter of fiscal 2016. The effects of this guidance will depend on the nature and significance of discontinued operations occurring after the effective date.

In May 2014, the FASB issued new guidance related to the recognition and reporting of revenue that establishes a comprehensive new revenue recognition model designed to depict the transfer of goods or services to a customer in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. The guidance allows for the use of either the full or modified retrospective transition method, and the standard will be effective for us in the first quarter of our fiscal year 2018; early adoption is not permitted. We are currently evaluating the impact of this new standard on our consolidated financial statements, as well as which transition method we intend to use.

In April 2015, the FASB issued an ASU to provide guidance to entities on evaluating the accounting for fees paid by a customer in a cloud computing arrangement. This guidance will be effective for us beginning in our first quarter of fiscal 2017 and may be applied prospectively to all arrangements entered into or materially modified after the effective date or retrospectively. Early adoption is permitted. We are currently evaluating the impact of this ASU, as well as which transition method we intend to use, but do not anticipate material impacts on our consolidated financial statements upon adoption.

4. Statements of Cash Flows Additional Information

Non-cash investing activities and supplemental cash flow information are as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Non-cash Investing Activities:
Reclassification of equity component of Convertible Notes	$	—	$	—	$	62.6
Capital expenditures incurred but not paid	$	12.1	$	18.0	$	20.2
Acquisition of software through long-term financing	$	12.3	$	11.4	$	0.8
Supplemental Cash Flow Information:
Income taxes paid, net of refunds	$	97.4	$	58.1	$	46.7
Interest paid	$	32.7	$	35.2	$	22.8

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5. Business Combinations

Fiscal 2015 Acquisitions

On October 27, 2014, we completed the acquisition of certain assets related to Riverbed Technology, Inc.’s SteelStore product line for $79.1 million in cash. The SteelStore product line supports leading backup applications and cloud providers so that customers have a choice in how they extend their existing data protection infrastructure into the cloud.

In addition, on the same date, we acquired certain intangible assets from a privately-held software developer for $5.5 million in cash.

The preliminary fair values of assets acquired and liabilities assumed as of the closing date are summarized as follows (in millions):

Prepaid expenses and other current assets	$	2.7
Finite-lived intangible assets		31.8
Goodwill		39.3
Deferred income taxes		10.8
Other non-current assets		1.1
Total assets acquired		85.7
Deferred revenue		(1.1	)
Total purchase price	$	84.6

The results of operations related to these acquisitions have been included in our consolidated statements of operations from the acquisition date. Pro forma results of operations have not been presented because the acquisitions were not material to our results of operations.

Fiscal 2013 Acquisitions

Consideration related to our fiscal 2013 acquisitions consisted of the following (in millions):

Cash	$	106.9
Equity		1.2
Total purchase price	$	108.1

The allocation of the purchase consideration for business combinations completed in fiscal 2013 is summarized as follows (in millions):

Net liabilities assumed	$	(5.1	)
Finite-lived intangible assets		30.3
Goodwill		82.9
Total purchase price	$	108.1

6. Goodwill and Purchased Intangible Assets, Net

Goodwill activity is summarized as follows (in millions):

Balance as of April 26, 2013	$	988.1
Goodwill acquired		—
Balance as of April 25, 2014		988.1
Goodwill acquired		39.3
Balance as of April 24, 2015	$	1,027.4

We conducted our annual goodwill impairment test during the fourth quarter of fiscal 2015. Based on this analysis, we determined that there was no impairment to goodwill. We will continue to monitor our recorded goodwill for indicators of impairment.

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Purchased intangible assets, net are summarized below (in millions):

	April 24, 2015							April 25, 2014
	Gross		Accumulated			Net		Gross		Accumulated			Net
	Assets		Amortization			Assets		Assets		Amortization			Assets
Developed technology	$	312.4	$	(225.2	)	$	87.2	$	283.0	$	(162.6	)	$	120.4
Customer contracts/relationships		5.0		(2.7	)		2.3		9.6		(9.0	)		0.6
Other purchased intangibles		2.9		(2.9	)		—		4.5		(4.0	)		0.5
Total purchased intangible assets	$	320.3	$	(230.8	)	$	89.5	$	297.1	$	(175.6	)	$	121.5

Amortization expense for purchased intangible assets is summarized below (in millions):

	Year Ended						Statement of
	April 24, 2015		April 25, 2014		April 26, 2013		Operations Classifications
Developed technology	$	62.6	$	57.1	$	55.9	Cost of revenues
Customer contracts/relationships		0.7		1.0		25.2	Operating expenses
Other purchased intangibles		0.4		1.0		4.7	Operating expenses
Total	$	63.7	$	59.1	$	85.8

As of April 24, 2015, future amortization expense related to purchased intangible assets is as follows (in millions):

Fiscal Year	Amount
2016	$	58.4
2017		13.9
2018		9.4
2019		5.2
2020		2.6
Total	$	89.5

7. Balance Sheet Details

Cash and cash equivalents (in millions):

	April 24, 2015		April 25, 2014
Cash	$	1,666.3	$	2,174.0
Cash equivalents		255.2		117.0
Cash and cash equivalents	$	1,921.5	$	2,291.0

Inventories (in millions):

	April 24, 2015		April 25, 2014
Purchased components	$	36.2	$	17.6
Finished goods		110.3		104.8
Inventories	$	146.5	$	122.4

Other current assets (in millions):

	April 24, 2015		April 25, 2014
Prepaid expenses and other current assets	$	268.3	$	219.4
Deferred tax assets		253.5		270.3
Other current assets	$	521.8	$	489.7

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Property and equipment, net (in millions):

	April 24, 2015			April 25, 2014
Land	$	265.5		$	265.7
Buildings and improvements		607.0			541.7
Leasehold improvements		106.6			102.9
Computer, production, engineering and other equipment		753.7			753.8
Computer software		371.9			369.1
Furniture and fixtures		85.4			86.4
Construction-in-progress		33.0			72.9
		2,223.1			2,192.5
Accumulated depreciation and amortization		(1,193.2	)		(1,083.7	)
Property and equipment, net	$	1,029.9		$	1,108.8

The net book value of computer software, which includes capitalized internal-use software development costs, is summarized below (in millions):

	April 24, 2015		April 25, 2014
Computer software	$	58.5	$	103.5

Depreciation and amortization expense related to property and equipment, net is summarized below (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Depreciation and amortization expense	$	243.5	$	275.0	$	258.8

Included in depreciation and amortization expense above is amortization related to computer software, as summarized below (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Computer software amortization expense	$	84.6	$	74.4	$	76.7

Other non-current assets (in millions):

	April 24, 2015		April 25, 2014
Auction rate securities	$	—	$	36.0
Deferred tax assets		255.9		245.0
Other assets		225.1		243.1
Other non-current assets	$	481.0	$	524.1

Accrued expenses (in millions):

	April 24, 2015		April 25, 2014
Accrued compensation and benefits	$	358.8	$	407.8
Product warranty liability		57.8		73.0
Other current liabilities		284.8		313.0
Accrued expenses	$	701.4	$	793.8

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Product warranty liabilities:

Equipment and software systems sales include a standard product warranty. The following tables summarize the activity related to product warranty liabilities and their balances as reported in our consolidated balance sheets (in millions):

	Year Ended
	April 24, 2015			April 25, 2014
Balance at beginning of year	$	110.0		$	117.2
Expense accrued during the year		35.2			70.2
Warranty costs incurred		(59.5	)		(77.4	)
Balance at end of year	$	85.7		$	110.0

	April 24, 2015		April 25, 2014
Accrued expenses	$	57.8	$	73.0
Other long-term liabilities		27.9		37.0
Total warranty liabilities	$	85.7	$	110.0

Warranty expense accrued during the period includes amounts accrued for systems at the time of shipment, adjustments for changes in estimated costs for warranties on systems shipped in the period and changes in estimated costs for warranties on systems shipped in prior periods.

Short-term and long-term deferred revenue (in millions):

	April 24, 2015		April 25, 2014
Product	$	17.4	$	23.4
Services		3,179.8		3,076.8
Total	$	3,197.2	$	3,100.2
Reported as:
Short-term	$	1,724.2	$	1,653.8
Long-term		1,473.0		1,446.4
Total	$	3,197.2	$	3,100.2

8. Other income (expense), net

Other income (expense), net consists of the following (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Interest income	$	36.6		$	34.9		$	42.2
Interest expense		(42.0	)		(36.1	)		(91.7	)
Other income, net		1.7			7.6			8.3
Total other income (expense), net	$	(3.7	)	$	6.4		$	(41.2	)

9. Financial Instruments and Fair Value Measurements

The accounting guidance for fair value measurements provides a framework for measuring fair value on either a recurring or nonrecurring basis, whereby the inputs used in valuation techniques are assigned a hierarchical level. The following are the three levels of inputs to measure fair value:

Level 1: Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 2: Inputs that reflect quoted prices for identical assets or liabilities in less active markets; quoted prices for similar assets or liabilities in active markets; benchmark yields, reported trades, broker/dealer quotes, inputs other than quoted prices that are observable for the assets or liabilities; or inputs that are derived principally from or corroborated by observable market data by correlation or other means.

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Level 3: Unobservable inputs that reflect our own assumptions incorporated in valuation techniques used to measure fair value. These assumptions are required to be consistent with market participant assumptions that are reasonably available.

We consider an active market to be one in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis, and consider an inactive market to be one in which there are infrequent or few transactions for the asset or liability, the prices are not current, or price quotations vary substantially either over time or among market makers. Where appropriate, our own or the counterparty’s non-performance risk is considered in measuring the fair values of liabilities and assets, respectively.

Investments

The following is a summary of our investments (in millions):

	April 24, 2015									April 25, 2014
	Cost or							Estimated		Cost or							Estimated
	Amortized		Gross Unrealized					Fair		Amortized		Gross Unrealized					Fair
	Cost		Gains		Losses			Value		Cost		Gains		Losses			Value
Corporate bonds	$	2,249.4	$	8.7	$	(0.5	)		2,257.6	$	2,142.3	$	10.5	$	(0.5	)	$	2,152.3
U.S. Treasury and government debt    securities		1,055.7		2.5		—			1,058.2		263.4		0.3		(0.1	)		263.6
Foreign government debt securities		37.7		0.2		—			37.9		—		—		—			—
Commercial paper		20.0		—		—			20.0		168.4		—		—			168.4
Certificates of deposit		286.2		—		—			286.2		245.0		—		—			245.0
Auction rate securities		—		—		—			—		36.9		—		(0.9	)		36.0
Mutual funds		32.2		—		—			32.2		32.7		—		—			32.7
Total debt and equity securities	$	3,681.2	$	11.4	$	(0.5	)	$	3,692.1	$	2,888.7	$	10.8	$	(1.5	)	$	2,898.0

As of April 24, 2015, gross unrealized losses related to individual securities were not significant. The following table shows the gross unrealized losses and estimated fair values of our available-for-sale investments with gross unrealized losses and the length of time that individual securities have been in continuous unrealized loss positions as of April 25, 2014 (in millions):

	April 25, 2014
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate bonds	$	233.1	$	(0.5	)	$	—	$	—		$	233.1	$	(0.5	)
U.S. Treasury and government debt securities		63.0		(0.1	)		—		—			63.0		(0.1	)
Auction rate securities		—		—			36.0		(0.9	)		36.0		(0.9	)
Total	$	296.1	$	(0.6	)	$	36.0	$	(0.9	)	$	332.1	$	(1.5	)

The following table presents the contractual maturities of our debt investments as of April 24, 2015 (in millions):

	Amortized Cost		Fair Value
Due in one year or less	$	1,437.8	$	1,440.2
Due after one year through five years		2,211.2		2,219.7
	$	3,649.0	$	3,659.9

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Actual maturities may differ from the contractual maturities because borrowers may have the right to call or prepay certain obligations.

Fair Value of Financial Instruments

The following table summarizes our financial assets and liabilities measured at fair value on a recurring basis (in millions):

	April 24, 2015
				Fair Value Measurements at Reporting Date Using
	Total			Level 1		Level 2
Cash	$	1,666.3		$	1,666.3	$	—
Corporate bonds		2,257.6			—		2,257.6
U.S. Treasury and government debt securities		1,058.2			145.6		912.6
Foreign government debt securities		37.9			—		37.9
Commercial paper		20.0			—		20.0
Certificates of deposit		286.2			—		286.2
Total cash, cash equivalents and short-term investments	$	5,326.2		$	1,811.9	$	3,514.3
Other items:
Mutual funds(1)	$	2.8		$	2.8	$	—
Mutual funds(2)	$	29.4		$	29.4	$	—
Foreign currency exchange contracts assets(1)	$	3.4		$	—	$	3.4
Long-term debt	$	(1,523.6	)	$	—	$	(1,523.6	)

	April 25, 2014
				Fair Value Measurements at Reporting Date Using
	Total			Level 1		Level 2			Level 3
Cash	$	2,174.0		$	2,174.0	$	—		$	—
Corporate bonds		2,152.3			—		2,152.3			—
U.S. Treasury and government debt securities		263.6			185.1		78.5			—
Commercial paper		168.4			—		168.4			—
Certificates of deposit		245.0			—		245.0			—
Total cash, cash equivalents and short-term investments	$	5,003.3		$	2,359.1	$	2,644.2		$	—
Other items:
Auction rate securities(2)	$	36.0		$	—	$	—		$	36.0
Mutual funds(1)	$	6.4		$	6.4	$	—		$	—
Mutual funds(2)	$	26.3		$	26.3	$	—		$	—
Foreign currency exchange contracts assets(1)	$	0.4		$	—	$	0.4		$	—
Foreign currency exchange contracts liabilities(3)	$	(1.9	)	$	—	$	(1.9	)	$	—
Long-term debt	$	(1,000.0	)	$	—	$	(1,000.0	)	$	—

⁽¹⁾ Reported as other current assets in the consolidated balance sheets

⁽²⁾ Reported as other non-current assets in the consolidated balance sheets

⁽³⁾ Reported as accrued expenses in the consolidated balance sheets

Our Level 2 debt instruments are held by a custodian who prices some of the investments using standard inputs in various asset price models or obtains investment prices from third-party pricing providers that incorporate standard inputs in various asset price models. These pricing providers utilize the most recent observable market information in pricing these securities or, if specific prices are not available for these securities, use other observable inputs like market transactions involving identical or comparable securities. We review Level 2 inputs and fair value for reasonableness and the values may be further validated by comparison to multiple independent pricing sources. In addition, we review third-party pricing provider models, key inputs and assumptions and understand the pricing processes at our third-party providers in determining the overall reasonableness of the fair value of our Level 2 financial instruments. As of April 24, 2015 and April 25, 2014, we have not made any adjustments to the prices obtained from our third-party pricing providers.

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During fiscal 2015, we settled our remaining ARS investments, which had been classified as Level 3 financial instruments at their respective par values. Quantitative information about our Level 3 fair value measurements as of April 24, 2014 for our ARSs is as follows:

	Estimated Fair Value as of April 25, 2014 (in millions)		Valuation Techniques	Unobservable Inputs	Range (Weighted average)
ARSs	$	36.0	Discounted cash flow	Time-to-economic maturity	6.7 yrs - 10.0 yrs (8.2 yrs)
				Illiquidity premium	1.1% - 2.8% (1.8%)
				Coupon rate	1.1% - 2.7% (1.8%)
			Market comparable securities	Discount rate	1.0% - 5.0% (2.4%)

All of our ARSs were backed by pools of student loans guaranteed by the U.S. Department of Education. We estimated the fair value of each individual ARS using an income (discounted cash flow) and market approach that incorporated both observable and unobservable inputs. Key inputs into the discounted cash flow analysis included the time-to-economic maturity, illiquidity premium, (which factors in liquidity risk, market credit spread and other factors), and a coupon rate. The key input into the market approach is a discount rate. We reviewed the fair value of our Level 3 financial instruments for overall reasonableness by reviewing service provider pricing methodologies, key inputs and assumptions and by understanding the processes used by our third-party service provider.

The table below provides a reconciliation of the beginning and ending balance of our Level 3 ARSs measured at fair value on a recurring basis using significant unobservable inputs (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Balance at beginning of year	$	36.0		$	42.0		$	51.0
Total unrealized gains, net included in other comprehensive    income (loss)		0.9			1.3			0.5
Total realized gains included in earnings		—			0.7			1.1
Sales		(10.0	)		(8.0	)		—
Settlements		(26.9	)		—			(10.6	)
Balance at end of year	$	—		$	36.0		$	42.0

Fair Value of Long-Term Debt

The fair value of our long-term debt was based on observable market prices in a less active market and discounted cash flow models that take into consideration variables such as credit-rating and interest rate changes. All of our debt obligations are categorized as Level 2 instruments.

10. Financing Arrangements

Long-term Debt

The following table summarizes information related to our long-term debt (in millions, except interest rates):

	April 24, 2015						April 25, 2014
				Effective						Effective
	Amount			Interest Rate			Amount			Interest Rate
2.00% Senior Notes Due 2017	$	750.0			2.25	%	$	750.0			2.25	%
3.375% Senior Notes Due 2021		500.0			3.54	%		—		N/A
3.25% Senior Notes Due 2022		250.0			3.43	%		250.0			3.43	%
Total principal amount		1,500.0						1,000.0
Less:
Unamortized discount		(5.0	)					(4.5	)
Unamortized issuance costs		(7.5	)					(5.4	)
Total long-term debt	$	1,487.5					$	990.1

N/A - Not Applicable

Senior Notes

On June 5, 2014 we issued $500.0 million aggregate par value of 3.375% Senior Notes, with a maturity date of June 15, 2021, and received proceeds of approximately $494.7 million, net of discount and issuance costs, which will be used for general corporate

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purposes, including possible stock repurchases, dividends, capital expenditures, working capital and potential acquisitions and strategic transactions. Our 2.00% Senior Notes and 3.25% Senior Notes, with a par value of $750.0 million and $250.0 million, respectively, were issued in December 2012. We collectively refer to such long-term debt as our Senior Notes. Interest on our Senior Notes is paid semi-annually on June 15 and December 15. Our Senior Notes, which are unsecured, unsubordinated obligations, rank equally in right of payment with any future senior unsecured indebtedness.

We may redeem the Senior Notes in whole or in part, at any time at our option at specified redemption prices. In addition, upon the occurrence of certain change of control triggering events, we may be required to repurchase the Senior Notes under specified terms. The Senior Notes also include covenants that limit our ability to incur debt secured by liens on assets or on shares of stock or indebtedness of our subsidiaries; to engage in sale and lease-back transactions; and to consolidate, merge or sell all or substantially all of our assets. As of April 24, 2015, we were in compliance with all covenants associated with the Senior Notes.

As of April 24, 2015, our aggregate future principal debt maturities for our Senior Notes are as follows (in millions):

Fiscal Year	Amount
2018	$	750.0
Thereafter		750.0
Total	$	1,500.0

1.75% Convertible Senior Notes due 2013 settled in June 2013

On June 10, 2008, we issued $1,265.0 million aggregate principal amount of 1.75% Convertible Senior Notes (the Convertible Notes) that matured in June 2013. Upon maturity, the Convertible Notes were converted into shares of common stock at a conversion rate of 31.40 shares of common stock per $1,000 principal amount of the Convertible Notes (which represented the effective conversion price of $31.85 per share). Upon conversion in June 2013, the holders received cash for the principal amount of the Convertible Notes and an aggregate of 4.9 million shares of common stock for the $178.9 million excess of the conversion value over the principal amount.

We separately accounted for the liability and equity components of the Convertible Notes. The initial debt component of the Convertible Notes was valued at $1,017.0 million based on the contractual cash flows discounted at an appropriate comparable market non-convertible debt borrowing rate at the date of issuance of 6.31%, with the equity component representing the residual amount of the proceeds of $248.0 million which was recorded as a debt discount. Issuance costs were allocated pro-rata based on the relative initial carrying amounts of the debt and equity components. As a result, $5.2 million of the issuance costs was allocated to the equity component of the Convertible Notes, and $21.4 million of the issuance costs remained classified as other non-current assets. The debt discount and the issuance costs allocated to the debt component were amortized as additional interest expense over the term of the Convertible Notes using the effective interest method.

The interest expense recognized on the Convertible Notes consisted of the following (in millions):

	Year Ended
	April 25, 2014		April 26, 2013
Contractual coupon interest expense	$	2.5	$	22.0
Amortization of debt discount		7.1		55.5
Amortization of debt issuance costs		0.6		4.8
Less capitalized interest		—		(1.1	)
Total interest expense related to Convertible Notes	$	10.2	$	81.2

Concurrent with the issuance of the Convertible Notes, we entered into arrangements to buy up to approximately 31.8 million shares of our common stock, at a price of $31.85 per share. During fiscal 2014, concurrent with the repayment and conversion of the Convertible Notes, we exercised the Convertible Note hedges which were net settled for an aggregate of 3.9 million shares from the counterparties. We also entered into separate transactions in which we sold warrants to acquire 39.7 million shares of our common stock at an exercise price of $41.28 per share. During fiscal 2014, 31.9 million warrants were exercised at a weighted-average price of $43.09 and were net settled with 1.1 million shares of our common stock, equal to the difference between the market price on the date of exercise and the exercise price of the warrants on their respective exercise dates, and the remaining warrants expired unexercised.

Credit Facility

In December 2012, we entered into a credit agreement with a syndicated group of lenders that is scheduled to expire on December 21, 2017 and provides for an unsecured $250.0 million revolving credit facility that is comprised of revolving loans, Eurocurrency loans and/or swingline loans. The credit facility includes a $100.0 million foreign currency sub-facility, a $50.0 million letter of credit sub-facility and a $10.0 million swingline sub-facility available on same-day notice. Available borrowings under the credit facility are reduced by the amount of any outstanding borrowings on the sub-facilities. We may also, subject to certain

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requirements, request an increase in the facility up to an additional $100.0 million and request two additional one-year extensions, subject to certain conditions. The proceeds from the facility may be used by us for general corporate purposes.

Borrowings under the facility, except for swingline loans, accrue interest in arrears at an alternate base rate as defined in the credit agreement or, at our option, an adjusted London Interbank Offered Rate (LIBOR) plus in each case, a spread (based on our public debt ratings and the type of loan) ranging from 0.2% to 1.2%. Swingline borrowings accrue interest at an alternate base rate. In addition, we are required to pay fees to maintain the credit facility, whether or not we have outstanding borrowings. The facility contains financial covenants requiring us to maintain a maximum leverage ratio of not more than 3.0:1.0 and a minimum interest coverage ratio of not less than 3.5:1.0. The facility contains customary affirmative and negative covenants, including covenants that limit our ability to incur debt secured by liens on assets or indebtedness of our subsidiaries and to consolidate, merge or sell all or substantially all of our assets. As of April 24, 2015, no borrowings were outstanding under the facility and we were in compliance with all covenants associated with the facility.

Other Long-Term Financing Arrangements

The following presents the amounts due under other long-term financing arrangements (in millions):

	April 24, 2015			April 25, 2014
Other long-term financing arrangements	$	15.9		$	13.1
Less:  current portion		(9.5	)		(6.6	)
Non-current portion of other long-term financing arrangements	$	6.4		$	6.5

11. Stockholders’ Equity

Equity Incentive Programs

The 1999 Plan — As most recently amended on September 5, 2014, the 1999 Stock Option Plan (the Plan) comprises five separate equity incentive programs: (i) the Discretionary Option Grant Program under which options may be granted to eligible individuals at a fixed price per share; (ii) the Stock Appreciation Rights Program under which eligible persons may be granted stock appreciation rights that allow individuals to receive the appreciation in fair market value of the shares; (iii) the Stock Issuance Program under which eligible individuals may be issued shares of common stock directly; (iv) the Performance Share and Performance Unit Program (also known as RSUs) under which eligible persons may be granted performance shares or performance units which result in payment to the participant only if performance goals or other vesting criteria are achieved and (v) the Automatic Award Program under which nonemployee board members automatically receive equity grants at designated intervals over their period of board service. The Plan expires in August 2019.

Under the Plan, the Board of Directors may grant to employees, nonemployee directors, consultants and independent advisors options to purchase shares of our common stock during their period of service. The exercise price for an incentive stock option and a nonstatutory option cannot be less than 100% of the fair market value of the common stock on the grant date. Options granted under the Plan generally vest over a four-year period. Options granted generally have a term of seven years after the grant date, subject to earlier termination upon the occurrence of certain events. The Plan prohibits the repricing of any outstanding stock option or stock appreciation right after it has been granted or to cancel any outstanding stock option or stock appreciation right and immediately replace it with a new stock option or stock appreciation right with a lower exercise price unless approved by stockholders. RSUs granted under the Plan generally vest over a four-year period with 25% vesting on each anniversary of the grant date. The Compensation Committee of the Board of Directors has the discretion to use different vesting schedules.

Under the Plan, the number of shares reserved for issuance is reduced by two shares for every share subject to a full value award, which are specified to be grants that are in the form of performance shares and/or performance unit awards, stock, restricted stock, restricted stock units. The Plan (i) limits the number of shares that may be granted pursuant to awards under the Stock Issuance Program to a participant in any calendar year to 1 million, (ii) limits the initial value of performance units a participant may receive to not more than $5 million and (iii) limits the number of performance shares a participant may receive in a calendar year to 1 million.

During fiscal 2015, the shares reserved for issuance under the plan were increased by 7.5 million shares. As of April 24, 2015, 12.7 million shares were available for grant under our equity incentive plans.

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Stock Options

The following table summarizes activity related to our stock options (in millions, except for exercise price and contractual term):

	Number of Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Outstanding at April 27, 2012		20.6		$	29.98
Granted		2.4		$	28.87
Exercised		(3.0	)	$	18.37
Forfeited and expired		(0.8	)	$	40.11
Outstanding at April 26, 2013		19.2		$	31.27
Granted		2.9		$	38.26
Exercised		(6.3	)	$	25.83
Forfeited and expired		(1.3	)	$	42.47
Outstanding as of April 25, 2014		14.5		$	34.10
Granted		2.2		$	36.64
Exercised		(4.6	)	$	25.25
Forfeited and expired		(0.6	)	$	42.42
Outstanding as of April 24, 2015		11.5		$	37.74		3.70	$	29.8
Vested and expected to vest as of April 24, 2015		11.1		$	37.78		3.63	$	29.5
Exercisable as of April 24, 2015		7.9		$	38.32		2.89	$	26.1

The aggregate intrinsic value represents the pre-tax difference between the exercise price of stock options and the quoted market price of our stock on that day for all in-the-money options.

Additional information related to our stock options is summarized below (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Intrinsic value of exercises	$	69.9	$	90.7	$	46.1
Proceeds received from exercises	$	116.6	$	163.7	$	56.5
Fair value of options vested	$	33.4	$	45.3	$	55.9

Restricted Stock Units

The following table summarizes activity related to our RSUs (in millions, except for fair value):

	Number of Shares			Weighted- Average Grant Date Fair Value
Outstanding at April 27, 2012		12.0		$	43.28
Granted		6.0		$	29.94
Vested		(4.0	)	$	39.83
Forfeited		(1.2	)	$	40.95
Outstanding at April 26, 2013		12.8		$	38.36
Granted		6.5		$	38.61
Vested		(4.5	)	$	38.48
Forfeited		(1.6	)	$	39.08
Outstanding as of April 25, 2014		13.2		$	38.35
Granted		6.5		$	35.80
Vested		(4.7	)	$	40.14
Forfeited		(1.7	)	$	37.48
Outstanding as of April 24, 2015		13.3		$	36.58

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RSUs are converted into common stock upon vesting. We primarily use the net share settlement approach upon vesting, where a portion of the shares are withheld as settlement of statutory employee withholding taxes, which decreases the shares issued to the employee by a corresponding value. The number and value of the shares netted for employee taxes are summarized in the table below (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Shares withheld for taxes		1.5		1.5		1.3
Fair value of shares withheld	$	56.8	$	57.7	$	40.9

Employee Stock Purchase Plan

Eligible employees are offered shares through a 24-month offering period, which consists of four consecutive 6-month purchase periods. Employees may purchase a limited number of shares of the Company’s stock at a discount of up to 15% of the lesser of the market value at the beginning of the offering period or the end of each 6-month purchase period. On September 5, 2014, the ESPP was amended to increase the shares reserved for issuance by 5.0 million shares of common stock. As of April 24, 2015, 8.9 million shares were available for issuance. The following table summarizes activity related to the purchase rights issued under the ESPP (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Shares issued under the ESPP		3.4		3.8		3.8
Proceeds from issuance of shares	$	97.1	$	95.5	$	95.0

Stock-Based Compensation Expense

Stock-based compensation expense is included in the consolidated statements of operations as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Cost of product revenues	$	5.8	$	5.6	$	6.1
Cost of hardware maintenance and other services revenues		16.0		16.7		19.4
Sales and marketing		116.5		125.0		132.2
Research and development		84.1		87.7		84.1
General and administrative		36.9		38.0		34.8
Total stock-based compensation expense	$	259.3	$	273.0	$	276.6

As of April 24, 2015, total unrecognized compensation expense related to our equity awards was $358.7 million, which is expected to be recognized on a straight-line basis over a weighted-average remaining service period of 2.2 years.

Total income tax benefit associated with employee stock transactions and recognized in stockholders’ equity were as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Income tax benefit associated with employee stock transactions	$	56.9	$	40.5	$	53.8

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Valuation Assumptions

The valuation of stock options, RSUs and ESPP purchase rights and the underlying weighted-average assumptions are summarized as follows:

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Stock options:
Expected term in years		4.8			4.8			4.8
Risk-free interest rate		1.6	%		1.1	%		0.6	%
Expected volatility		29	%		34	%		41	%
Expected dividend yield		1.8	%		1.6	%		—	%
Weighted-average fair value per share granted	$	8.24		$	9.85		$	11.52
RSUs:
Risk-free interest rate		0.6	%		0.5	%	N/A
Expected dividend yield		1.8	%		1.6	%		—	%
Weighted-average fair value per share granted	$	35.80		$	38.61		$	29.94
ESPP:
Expected term in years		1.3			1.2			1.2
Risk-free interest rate		0.2	%		0.2	%		0.2	%
Expected volatility		27	%		31	%		40	%
Expected dividend yield		1.8	%		1.6	%		—	%
Weighted-average fair value per right granted	$	9.81		$	10.83		$	10.36

N/A - Not Applicable

Stock Repurchase Program

As of April 24, 2015, our Board of Directors has authorized the repurchase of up to $9.6 billion of our common stock, including a $2.5 billion increase approved by our Board of Directors in fiscal 2015. Under this program, which we may suspend or discontinue at any time, we may purchase shares of our outstanding common stock through open market and privately negotiated transactions at prices deemed appropriate by our management.

The following table summarizes activity related to this program (in millions, except per share information):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Number of shares repurchased		29.6		47.3		18.1
Average price per share	$	39.30	$	39.78	$	32.68
Aggregate purchase price	$	1,165.2	$	1,881.5	$	590.0
Remaining authorization at end of period	$	2,459.5	$	1,124.8	$	1,406.3

The aggregate purchase price of our stock repurchases for fiscal 2015 consisted of $1,165.2 million of open market purchases, of which, $812.8 million and $352.4 million was allocated to additional paid-in capital and retained earnings, respectively.

Since the May 13, 2003 inception of our stock repurchase program through April 24, 2015, we repurchased a total of 214.0 million shares of our common stock at an average price of $33.48 per share, for an aggregate purchase price of $7.2 billion.

Accelerated Share Repurchase Agreement

In fiscal 2014, we entered into a collared Accelerated Share Repurchase (ASR) with a third party under which we prepaid $750.0 million to purchase shares of our common stock. The aggregate number of shares ultimately purchased was determined based on the volume weighted-average share price of our common stock over a specified period of time. This contract settled in fiscal 2014, resulting in the repurchase of 19.2 million shares, at an average price per share of $39.13. The value of the ASR forward contract was determined to be $13.9 million, which was recorded as additional paid-in capital.

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Preferred Stock

Our Board of Directors has the authority to issue up to 5.0 million shares of preferred stock and to determine the price, rights, preferences, privileges, and restrictions, including voting rights, of those shares without any further vote or action by the stockholders. No shares of preferred stock were issued or outstanding in any period presented.

Dividends

The following is a summary of our fiscal 2015 and 2014 activities related to dividends on our common stock (in millions, except per share amounts). No dividends were declared or paid in fiscal 2013.

	Year Ended
	April 24, 2015		April 25, 2014
Dividends per share declared	$	0.66	$	0.60
Dividend payments allocated to additional paid-in capital	$	52.0	$	50.4
Dividend payments allocated to retained earnings	$	155.4	$	151.9

On May 20, 2015, we declared a cash dividend of $0.18 per share of common stock, payable on July 23, 2015 to holders of record as of the close of business on July 10, 2015. The timing and amount of future dividends will depend on market conditions, corporate business and financial considerations and regulatory requirements. All dividends declared have been determined by the Company to be legally authorized under the laws of the state in which we are incorporated.

Accumulated Other Comprehensive Income (Loss)

Changes in AOCI by component, net of tax, are summarized below (in millions):

	Foreign Currency Translation Adjustments			Defined Benefit Obligation Adjustments			Unrealized Gains on Available- for-Sale Securities			Unrealized Gains (Losses) on Derivatives Instruments			Total
Balance as of April 26, 2013	$	2.0		$	(5.7	)	$	11.4		$	1.0		$	8.7
OCI before reclassifications, net of tax		3.5			0.5			(1.2	)		(3.5	)		(0.7	)
Amounts reclassified from AOCI, net of tax		—			0.4			(1.3	)		2.0			1.1
Total OCI		3.5			0.9			(2.5	)		(1.5	)		0.4
Balance as of April 25, 2014		5.5			(4.8	)		8.9			(0.5	)		9.1
OCI before reclassifications, net of tax		(28.3	)		(7.8	)		2.3			15.5			(18.3	)
Amounts reclassified from AOCI, net of tax		—			0.2			(0.3	)		(14.4	)		(14.5	)
Total OCI		(28.3	)		(7.6	)		2.0			1.1			(32.8	)
Balance as of April 24, 2015	$	(22.8	)	$	(12.4	)	$	10.9		$	0.6		$	(23.7	)

The amounts reclassified out of AOCI are as follows (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
	Amounts Reclassified from AOCI									Statements of Operations Location
Recognized losses on defined benefit     obligations	$	0.2		$	0.4		$	—		Operating expenses
Realized gains on available-for-sale     securities		(0.3	)		(1.3	)		(0.6	)	Other income (expense), net
Realized (gains) losses on cash flow hedges		(14.4	)		2.0			(2.2	)	Net revenues
Total reclassifications	$	(14.5	)	$	1.1		$	(2.8	)

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12. Derivatives and Hedging Activities

We use derivative instruments to manage exposures to foreign currency risk. Our primary objective in holding derivatives is to reduce the volatility of earnings and cash flows associated with changes in foreign currency exchange rates. The program is not designated for trading or speculative purposes. Our derivatives expose us to credit risk to the extent that the counterparties may be unable to meet the terms of the agreement. We seek to mitigate such risk by limiting our counterparties to major financial institutions. In addition, the potential risk of loss with any one counterparty resulting from this type of credit risk is monitored on an ongoing basis. We also have in place master netting arrangements to mitigate the credit risk of our counterparties and to potentially reduce our losses due to counterparty nonperformance. We present our derivative instruments as net amounts in our consolidated balance sheets. The gross and net fair value amounts of such instruments were not material as of April 24, 2015 or April 25, 2014. We did not recognize any gains and losses in earnings due to hedge ineffectiveness for any period presented. All contracts have a maturity of less than six months.

Over the next 12 months, we expect an immaterial amount of derivative net gains recorded in AOCI as of April 24, 2015 will be reclassified into net revenues. The maximum length of time over which forecasted foreign currency denominated revenues are hedged is six months.

The notional amount of our outstanding U.S. dollar equivalent foreign currency exchange contracts consisted of the following (in millions):

	April 24, 2015		April 25, 2014
Cash Flow Hedges
Forward contracts purchased	$	93.6	$	122.6
Balance Sheet Contracts
Forward contracts sold	$	160.2	$	155.5
Forward contracts purchased	$	231.2	$	389.9

The effect of derivative instruments designated as cash flow hedges recognized in net revenues on our consolidated statements of operations is presented in the consolidated statements of comprehensive income and Note 11 – Stockholders’ Equity.

The effect of derivative instruments not designated as hedging instruments recognized in other income (expense), net on our consolidated statements of operations was as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
	Gain Recognized into Income
Foreign currency exchange contracts	$	14.1	$	0.8	$	6.5

13. Restructuring and Other Charges

In May 2013, we initiated a business restructuring plan under which we realigned internal resources, resulting in a reduction of our global workforce of approximately 7%. Such activities were completed in the year ended April 25, 2014. In March 2014, we initiated a business realignment plan designed to focus our resources on key strategic initiatives and streamline our business in light of the constrained information technology spending environment, resulting in a reduction of our global workforce of approximately 4%. Such activities were completed in the year ended April 24, 2015. Restructuring and other charges consisted primarily of employee severance-related costs.

Activities related to these plans are summarized as follows (in millions):

	March 2014 Plan			May 2013 Plan			Total
Balance as of April 26, 2013	$	—		$	—		$	—
Net charges		38.8			49.5			88.3
Cash payments		(12.3	)		(49.5	)		(61.8	)
Balance as of April 25, 2014		26.5			—			26.5
Net charges		—			—			—
Cash payments		(26.5	)		—			(26.5	)
Balance as of April 24, 2015	$	—		$	—		$	—

Liabilities for our restructuring plans were included in accrued expenses in our consolidated balance sheets.

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14. Income Taxes

Income before income taxes is as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Domestic	$	252.9	$	120.5	$	(63.8	)
Foreign		459.9		620.2		630.4
Total	$	712.8	$	740.7	$	566.6

Domestic income before taxes is lower than foreign income before taxes due to significant domestic expenses related to the amortization of intangibles, stock based compensation and, for fiscal years 2014 and 2013, convertible notes interest.

The provision for income taxes consists of the following (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Current:
Federal	$	103.6		$	123.7		$	85.3
State		11.7			14.6			14.6
Foreign		40.3			40.9			38.0
Total current		155.6			179.2			137.9
Deferred:
Federal		8.0			(64.8	)		(56.9	)
State		(3.3	)		(6.1	)		(17.8	)
Foreign		(7.4	)		(5.1	)		(1.9	)
Total deferred		(2.7	)		(76.0	)		(76.6	)
Provision for income taxes	$	152.9		$	103.2		$	61.3

The provision for income taxes differs from the amount computed by applying the statutory federal income tax rate as follows (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Tax computed at federal statutory rate	$	249.5		$	259.2		$	198.3
State income taxes, net of federal benefit		5.4			5.6			(2.0	)
Foreign earnings in lower tax jurisdictions		(141.0	)		(163.3	)		(144.4	)
Stock-based compensation		5.5			9.8			18.4
Research and experimentation credits		(13.7	)		(8.7	)		(12.1	)
Resolution of income tax examinations		46.4			—			0.1
Other		0.8			0.6			3.0
Provision for income taxes	$	152.9		$	103.2		$	61.3

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The components of our deferred tax assets and liabilities are as follows (in millions):

	April 24, 2015			April 25, 2014
Deferred tax assets:
Reserves and accruals	$	94.3		$	89.3
Acquired intangibles		43.8			22.3
Net operating loss and credit carryforwards		79.6			87.6
Stock-based compensation		70.4			73.3
Deferred revenue		297.7			318.9
Other		27.0			19.8
Gross deferred tax assets		612.8			611.2
Valuation allowance		(57.7	)		(49.6	)
Deferred tax assets, net of valuation allowance		555.1			561.6
Deferred tax liabilities:
Reserves and accruals		4.0			3.9
Acquired intangibles		13.7			10.0
Property and equipment		26.3			30.8
Other		3.5			2.6
Total deferred tax liabilities		47.5			47.3
Deferred tax assets, net of valuation allowance and deferred tax liabilities	$	507.6		$	514.3

Net deferred tax assets consist of the following (in millions):

	April 24, 2015		April 25, 2014
Current deferred tax assets, net	$	251.7	$	269.3
Non-current deferred tax assets, net	$	255.9	$	245.0

The valuation allowance increased by $8.1 million and $9.8 million in fiscal 2015 and 2014, respectively. The increases are mainly attributable to corresponding changes in deferred tax assets, primarily foreign tax credit carryforwards in a foreign jurisdiction and state tax credit carryforwards in certain states.

As of April 24, 2015, the federal and state net operating loss carryforwards were approximately $21.7 million and $85.4 million, respectively, before applying tax rates for the respective jurisdictions. The federal and state tax credit carryforwards were approximately $117.0 million and $145.5 million, respectively. Certain acquired net operating loss and credit carryforwards are subject to an annual limitation under Internal Revenue Code Section 382, but are expected to be realized with the exception of those which have a valuation allowance. The federal and state net operating loss carryforwards and credits will expire in various years from fiscal 2018 through 2035. If realized, $122.0 million, tax effected, of net operating loss and tax credit carryovers will be recognized as additional paid-in capital.

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Balance at beginning of period	$	235.9		$	189.6		$	161.0
Additions based on tax positions related to the current year		21.7			26.9			34.5
Additions for tax positions of prior years		101.2			23.8			1.0
Decreases for tax positions of prior years		(29.3	)		(4.4	)		(6.9	)
Settlements		(57.6	)		—			—
Balance at end of period	$	271.9		$	235.9		$	189.6

As of April 24, 2015, we had $271.9 million of gross unrecognized tax benefits, of which $213.6 million has been recorded in other long-term liabilities. Unrecognized tax benefits of $167.5 million, including penalties, interest and indirect benefits, would affect our provision for income taxes if recognized.

We recognize accrued interest and penalties related to unrecognized tax benefits in the income tax provision. During fiscal 2015, 2014 and 2013, we recognized accrued interest and penalties of approximately $3.6 million, $2.2 million and $1.2 million, respectively in the consolidated statements of operations and $8.6 million and $5.0 million, respectively, were recorded in the consolidated balance sheets as of April 24, 2015 and April 25, 2014.

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The tax years that remain subject to examination for our major tax jurisdictions are shown below:

Fiscal Years Subject to Examination for Major Tax Jurisdictions at April 24, 2015

2008 — 2015	United States — federal income tax
2008 — 2015	United States — state and local income tax
2011 — 2015	Australia
2009 — 2015	Germany
2006 — 2015	India
2009 — 2015	Japan
2011 — 2015	The Netherlands
2013 — 2015	United Kingdom
2008 — 2015	Canada

In addition, we are effectively subject to federal tax examination adjustments for tax years ended on or after fiscal 2001, in that we have net operating loss carryforwards from these years that could be subject to adjustment upon utilization.

In July 2014, the Internal Revenue Service (IRS) completed the examination of our fiscal 2005 to 2007 income tax returns upon approval by the Joint Committee of Taxation. We recorded a $47.4 million income tax provision attributable to the audit settlement and related re-measurement of uncertain tax positions for tax years subject to future audits. The audit adjustments resulted in lower earnings in our foreign subsidiaries which reduced the taxability of dividends that were previously repatriated from such subsidiaries. Due to this reduction in taxable dividends, the conclusion of the fiscal 2005 to 2007 income tax audit resulted in a net refund of $8.0 million, excluding interest.

In October 2014, the United Kingdom’s (UK’s) tax authority concluded the examination of our fiscal 2009 to 2012 UK income tax returns. We recorded a $1.0 million income tax benefit for the net impact of the audit adjustments and related release of unrecognized tax benefits.

We are currently undergoing federal income tax audits in the United States (U.S.) and several foreign tax jurisdictions. Transfer pricing calculations are key issues under audits in various jurisdictions, and are often subject to dispute and appeals. The IRS is currently auditing our fiscal 2008 to 2010 income tax returns. We expect the IRS examination team to complete their field audit within the next twelve months. However, the resolution of the fiscal 2008 to 2010 income tax return audits may likely occur beyond the next twelve months should we choose to appeal the IRS examination team’s audit findings.

On September 17, 2010, the Danish Tax Authorities issued a decision concluding that distributions declared in 2005 and 2006 from our Danish subsidiary were subject to Danish at-source dividend withholding tax. We do not believe that our Danish subsidiary is liable for withholding tax and filed an appeal with the Danish Tax Tribunal to that effect. On December 19, 2011, the Danish Tax Tribunal issued a ruling that our Danish subsidiary was not liable for Danish withholding tax. The Danish tax examination agency appealed to the Danish High Court in March 2012. The Danish High Court hearing has not yet occurred.

We engage in continuous discussion and negotiation with taxing authorities regarding tax matters in multiple jurisdictions.We believe that within the next 12 months, it is reasonably possible that either certain audits will conclude, certain statutes of limitations will lapse, or both. Given the uncertainties involved in all tax audits, we estimate a potential decrease in our unrecognized tax benefit balance of up to $95.4 million may occur within the next 12 months associated with the potential settlements and statute lapses.

As of April 24, 2015, the amount of accumulated unremitted earnings from our foreign subsidiaries is approximately $3.3 billion. We have not provided U.S. income taxes and foreign withholding taxes on the undistributed earnings of foreign subsidiaries because we intend to permanently reinvest such earnings outside the U.S. If these foreign earnings were to be repatriated in the future, the related U.S. tax liability may be reduced by any foreign income taxes previously paid on these earnings as well as tax attribute carryforwards. We estimate the unrecognized deferred tax liability related to these earnings to be approximately $1 billion as of April 24, 2015.

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15. Net Income per Share

The following is a calculation of basic and diluted net income per share (in millions, except per share amounts):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Numerator:
Net income	$	559.9	$	637.5	$	505.3
Denominator:
Shares used in basic computation		315.5		340.3		361.5
Dilutive impact of employee equity award plans		5.2		6.9		5.4
Dilutive impact of assumed conversion of Convertible Notes		—		0.5		1.1
Dilutive impact of warrants		—		0.2		—
Shares used in diluted computation		320.7		347.9		368.0
Net Income per Share:
Basic	$	1.77	$	1.87	$	1.40
Diluted	$	1.75	$	1.83	$	1.37

The following potential weighted-average shares of common stock have been excluded from the diluted net income per share calculations, as their effect would have been anti-dilutive (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Employee equity award plans		7.8		6.4		15.1

Dilutive shares outstanding during fiscal 2013 do not include any effect resulting from warrants, as their impact would have been anti-dilutive.

16. Segment, Geographic, and Significant Customer Information

We operate in one industry segment: the design, manufacturing, marketing, and technical support of high-performance storage and data management solutions. We conduct business globally, and our sales and support activities are managed on a geographic basis. Our management reviews financial information presented on a consolidated basis, accompanied by disaggregated information it receives from our internal management system about revenues by geographic region, based on the location from which the customer relationship is managed, for purposes of allocating resources and evaluating financial performance. We do not allocate costs of revenues, research and development, sales and marketing, or general and administrative expenses to our geographic regions in this internal management reporting because management does not review operations or operating results, or make planning decisions, below the consolidated entity level.

Summarized revenues by geographic region based on information from our internal management system and utilized by our Chief Executive Officer, who is considered our Chief Operating Decision Maker, is as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
United States, Canada and Latin America (Americas)	$	3,446.8	$	3,513.3	$	3,552.5
Europe, Middle East and Africa (EMEA)		1,857.4		1,954.6		1,928.8
Asia Pacific (APAC)		818.5		857.2		851.1
Net revenues	$	6,122.7	$	6,325.1	$	6,332.4

Americas revenues consist of sales to Americas commercial and U.S. public sector markets. Sales to customers inside the U.S. were $3,096.1 million, $3,130.9 million and $3,152.7 million during fiscal 2015, 2014 and 2013, respectively.

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The majority of our assets, excluding cash, cash equivalents, short-term investments and accounts receivable, were attributable to our domestic operations. The following table presents cash, cash equivalents and short-term investments held in the U.S. and internationally in various foreign subsidiaries (in millions):

	April 24, 2015		April 25, 2014
U.S.	$	596.2	$	681.8
International		4,730.0		4,321.5
Total	$	5,326.2	$	5,003.3

With the exception of property and equipment, we do not identify or allocate our long-lived assets by geographic area. The following table presents property and equipment information for geographic areas based on the physical location of the assets (in millions):

	April 24, 2015		April 25, 2014
U.S.	$	926.9	$	1,021.4
International		103.0		87.4
Total	$	1,029.9	$	1,108.8

The following customers, each of which is a distributor, accounted for 10% or more of our net revenues:

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Arrow Electronics, Inc.		23	%		22	%		19	%
Avnet, Inc.		16	%		16	%		15	%

The following customers accounted for 10% or more of accounts receivable:

	April 24, 2015			April 25, 2014
Arrow Electronics, Inc.		14	%		14	%
Avnet, Inc.		16	%		16	%

17. Employee Benefits and Deferred Compensation

Employee 401(k) Plan

Our 401(k) Plan is a deferred salary arrangement under Section 401(k) of the Internal Revenue Code. Under the 401(k) Plan, participating U.S. employees may defer a portion of their pre-tax earnings, up to the IRS annual contribution limit. Effective January 1, 2015, we match 100% of the first 2% of eligible earnings an employee contributes to the 401(k) Plan, and then match 50% of the next 4% of eligible earnings an employee contributes. An employee receives the full 4% match when he/she contributes at least 6% of his/her eligible earnings, up to a maximum calendar year matching contribution of $6,000. Effective the same date, employer matching contributions made in the current and previous years vested immediately. Our employer matching contributions to the 401(k) Plan were as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
401(k) matching contributions	$	16.3	$	19.6	$	19.9

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Deferred Compensation Plan

We have a non-qualified deferred compensation plan that allows a group of employees within the U.S. to contribute base salary and commissions or incentive compensation on a tax deferred basis in excess of the IRS limits imposed on 401(k) plans. The marketable securities related to these investments are held in a Rabbi Trust. The related deferred compensation plan assets and liabilities under the non-qualified deferred compensation plan were as follows (in millions):

	April 24, 2015		April 25, 2014
Deferred compensation plan assets	$	32.2	$	32.7
Deferred compensation liabilities reported as:
Accrued expenses	$	2.8	$	6.4
Other long-term liabilities	$	29.4	$	26.3

Postretirement Health Care Plan

We maintain a plan to provide postretirement health and welfare benefits to certain executives who meet certain age and service requirements. Coverage continues through the duration of the lifetime of the retiree or the retiree’s spouse, whichever is longer. There is no funding requirement associated with the plan and none of the benefit obligation was funded as of April 24, 2015. Assumed health care cost trend rates have a significant effect on the amounts reported for the health care plan.

International Defined Benefit Plans

We maintain various defined benefit plans to provide termination and postretirement benefits to certain eligible employees outside of the U.S. We also provide disability benefits to certain eligible employees in the U.S. Eligibility is determined based on the terms of our plans and local statutory requirements. Assumed discount rates and expected long-term returns on plan assets have significant effects on the amounts reported for the defined benefit plans.

Funded Status

The funded status of our postretirement health care and international termination and postretirement benefits was as follows (in millions):

	April 24, 2015			April 25, 2014
Fair value of plan assets	$	19.7		$	18.7
Benefit obligations		(60.2	)		(45.7	)
Unfunded obligations	$	(40.5	)	$	(27.0	)

Amounts recognized in the consolidated balance sheets were as follows (in millions):

	April 24, 2015			April 25, 2014
Other long-term liabilities	$	40.5		$	27.0
AOCI	$	(12.4	)	$	(4.8	)

18. Commitments and Contingencies

Operating Leases

We lease various equipment, vehicles and office space in the U.S. and internationally.

Future annual minimum lease payments under all non-cancelable operating leases with an initial term in excess of one year as of April 24, 2015 are as follows (in millions):

		2016		2017		2018		2019		2020	Thereafter		Total
Operating lease commitments	$	61.9	$	44.0	$	29.6	$	21.0	$	17.3	$	31.7	$	205.5

Rent expense under all cancellable and non-cancelable operating leases was $67.0 million, $65.5 million and $64.9 million in fiscal 2015, 2014 and 2013, respectively.

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Purchase Orders and Other Commitments

In the ordinary course of business, we make commitments to third-party contract manufacturers, to manage manufacturer lead times and meet product forecasts, and to other parties, to purchase various key components used in the manufacture of our products. We establish accruals for estimated losses on non-cancellable purchase commitments for components to the extent we believe it is probable that such components will not be utilized in future operations. To the extent that such forecasts are not achieved, our commitments and associated accruals may change. As of April 24, 2015, we had $295.0 million in non-cancelable purchase commitments with our contract manufacturers. In addition, we recorded a liability for firm, non-cancelable and unconditional purchase commitments with contract manufacturers for quantities in excess of our future demand forecasts through a charge to cost of product revenues. As of April 24, 2015 and April 25, 2014, such liability amounted to $16.9 million and $11.5 million, respectively, and is included in accrued expenses in our consolidated balance sheets.

In addition to commitments with contract manufacturers and component suppliers, we have open purchase orders and construction related obligations associated with our ordinary course of business for which we have not received goods or services. As of April 24, 2015, we had $60.0 million in construction related obligations and $211.0 million in other purchase obligations.

During the ordinary course of business, we provide standby letters of credit or other guarantee instruments to third parties as required for certain transactions initiated either by us or our subsidiaries. As of April 24, 2015, our financial guarantees of $9.3 million that were not recorded on our consolidated balance sheets consisted primarily of standby letters of credit and surety bonds.

Financing Guarantees

Some of our customers have entered into recourse and non-recourse financing leasing arrangements using third-party financing companies, and in some situations, we enter into customer financing arrangements for our products and services that are contemporaneously sold on a recourse or non-recourse basis to third-party financing companies. Under the terms of recourse leases, which are generally three years or less, we remain liable for the aggregate unpaid remaining lease payments to the third-party leasing companies in the event of end-user customer default. These arrangements are generally collateralized by a security interest in the underlying assets. Under the terms of the non-recourse leases, we do not have any continuing obligations or liabilities to the third-party financing companies. Where we provide a guarantee for recourse leases, we defer revenues subject to the industry-specific software revenue recognition guidance, and recognize revenues for non-software deliverables in accordance with our multiple deliverable revenue arrangement policy. In connection with certain recourse financing arrangements, we receive advance payments associated with undelivered elements that are subject to customer refund rights. We defer revenue associated with these advance payments until the related refund rights expire and we perform the services. As of April 24, 2015 and April 25, 2014, the aggregate amount by which such contingencies exceeded the associated deferred revenue was not significant. To date, we have not experienced material losses under our lease financing programs or other financing arrangements.

Indemnification Agreements

We enter into standard indemnification agreements in the ordinary course of business. Pursuant to these agreements, we agree to defend and indemnify other parties, primarily our customers or business partners or subcontractors, for damages and reasonable costs incurred in any suit or claim brought against them alleging that our products sold to them infringe any U.S. patent, copyright, trade secret, or similar right. If a product becomes the subject of an infringement claim, we may, at our option: (i) replace the product with another non-infringing product that provides substantially similar performance; (ii) modify the infringing product so that it no longer infringes but remains functionally equivalent; (iii) obtain the right for the customer to continue using the product at our expense and for the reseller to continue selling the product; (iv) take back the infringing product and refund to the customer the purchase price paid less depreciation amortized on a straight-line basis. We have not been required to make material payments pursuant to these provisions historically. We have not recorded any liability at April 24, 2015 related to these guarantees since the maximum amount of potential future payments under such guarantees, indemnities and warranties is not determinable, other than as described above.

Legal Contingencies

When a loss is considered probable and reasonably estimable, we record a liability in the amount of our best estimate for the ultimate loss. However, the likelihood of a loss with respect to a particular contingency is often difficult to predict and determining a meaningful estimate of the loss or a range of loss may not be practicable based on the information available and the potential effect of future events and decisions by third parties that will determine the ultimate resolution of the contingency.

We are subject to various legal proceedings and claims that arise in the normal course of business. No accrual has been recorded as of April 24, 2015 related to such matters as they are not probable and/or reasonably estimable.

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Selected Quarterly Financial Data (Unaudited)

Selected quarterly financial data is as follows (in millions, except per share amounts):

	Quarter Ended
	July 25, 2014		October 24, 2014		January 23, 2015		April 24, 2015
Net revenues	$	1,489.2	$	1,542.5	$	1,551.3	$	1,539.7
Gross profit	$	938.1	$	982.5	$	977.4	$	935.2
Net income	$	88.4	$	159.8	$	176.8	$	134.9
Net income per share, basic	$	0.27	$	0.50	$	0.57	$	0.44
Net income per share, diluted	$	0.27	$	0.49	$	0.56	$	0.43
	Quarter Ended
	July 26, 2013		October 25, 2013		January 24, 2014		April 25, 2014
Net revenues	$	1,516.2	$	1,549.9	$	1,610.0	$	1,649.0
Gross profit	$	909.6	$	965.2	$	1,002.3	$	1,042.0
Net income	$	81.6	$	166.8	$	192.1	$	197.0
Net income per share, basic	$	0.23	$	0.49	$	0.57	$	0.60
Net income per share, diluted	$	0.23	$	0.48	$	0.55	$	0.59

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of

NetApp, Inc.

Sunnyvale, California

We have audited the accompanying consolidated balance sheets of NetApp, Inc. and subsidiaries (the “Company”) as of April 24, 2015 and April 25, 2014, and the related consolidated statements of operations, comprehensive income, cash flows, and stockholders’ equity for each of the three years in the period ended April 24, 2015. These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the financial statements based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such consolidated financial statements present fairly, in all material respects, the financial position of NetApp, Inc. and subsidiaries as of April 24, 2015 and April 25, 2014, and the results of their operations and their cash flows for each of the three years in the period ended April 24, 2015, in conformity with accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company’s internal control over financial reporting as of April 24, 2015, based on the criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated June 12, 2015 expressed an unqualified opinion on the Company’s internal control over financial reporting.

/s/ DELOITTE & TOUCHE LLP

San Jose, California

June 12, 2015

83

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of

NetApp, Inc.

Sunnyvale, California

We have audited the internal control over financial reporting of NetApp, Inc. and subsidiaries (the “Company”) as of April 24, 2015, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

A company’s internal control over financial reporting is a process designed by, or under the supervision of, the company’s principal executive and principal financial officers, or persons performing similar functions, and effected by the company’s board of directors, management, and other personnel to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the Company’s assets that could have a material effect on the financial statements.

Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion or improper management override of controls, material misstatements due to error or fraud may not be prevented or detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal control over financial reporting to future periods are subject to the risk that the controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of April 24, 2015, based on the criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated financial statements as of and for the year ended April 24, 2015 of the Company and our report dated June 12, 2015 expressed an unqualified opinion on those financial statements.

/s/ DELOITTE & TOUCHE LLP

San Jose, California

June 12, 2015

84

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

None.

Item 9A. Controls and Procedures

(a) Evaluation of Disclosure Controls and Procedures

The phrase “disclosure controls and procedures” refers to controls and procedures designed to ensure that information required to be disclosed in our reports filed or submitted under the Securities Exchange Act of 1934, as amended (the Exchange Act), such as this Annual Report on Form 10-K, is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the U.S. Securities and Exchange Commission (SEC). Disclosure controls and procedures are also designed to ensure that such information is accumulated and communicated to our management, including our Chief Executive Officer (CEO) and our Chief Financial Officer (CFO), as appropriate to allow timely decisions regarding required disclosure.

Under the supervision and with the participation of our management, including our CEO and CFO, we carried out an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act, as of April 24, 2015, the end of the fiscal period covered by this Annual Report on Form 10-K (the Evaluation Date). Based on this evaluation, our CEO and CFO concluded as of the Evaluation Date that our disclosure controls and procedures were effective such that the information required to be disclosed in our SEC reports (i) is recorded, processed, summarized and reported within the time periods specified in SEC rules and forms and (ii) is accumulated and communicated to our management, including our CEO and CFO, as appropriate to allow timely decisions regarding required disclosure.

(b) Management’s Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting, as such term is defined in Exchange Act Rule 13a-15(f). Our internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, we conducted an evaluation of the effectiveness of our internal control over financial reporting based on the criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission. Based on this assessment, our management concluded that, as of April 24, 2015, our internal control over financial reporting was effective at the reasonable assurance level based on those criteria.

The effectiveness of our internal control over financial reporting as of April 24, 2015 has been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their report, which is included in Part II, Item 8 of this Annual Report on Form 10-K.

(c) Changes in Internal Control Over Financial Reporting

There has been no change in our internal control over financial reporting identified in connection with our evaluation required by paragraph (d) of rules 13a-15 and 15d-15 under the Exchange Act that occurred during the fourth quarter of fiscal 2015 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Item 9B. Other Information

None.

85

PART III

Item 10. Directors, Executive Officers and Corporate Governance

The information required by Item 10 with respect to our executive officers is incorporated herein by reference from the information under Item 1 – Business of Part I of this Annual Report on Form 10-K under the section entitled “Executive Officers.” The information required by Item 10 with respect to the Company’s directors and corporate governance is incorporated herein by reference from the information provided under the headings “Election of Directors” and “Corporate Governance,” respectively, in the Proxy Statement for the 2015 Annual Meeting of Stockholders, which will be filed with the Securities and Exchange Commission within 120 days of our year ended April 24, 2015. The information required by Item 405 of Regulation S-K is incorporated herein by reference from the information provided under the heading “Section 16(a) Beneficial Ownership Reporting Compliance” in the Proxy Statement for the 2015 Annual Meeting of Stockholders.

We have adopted a written code of ethics that applies to our Board of Directors and all of our employees, including our principal executive officer and principal financial and accounting officer. A copy of the code of ethics, which we refer to as our “Code of Conduct,” is available on our website at http://investors.netapp.com/governance.cfm. We will post any amendments to or waivers from the provisions of our Code of Conduct on our website.

Item 11. Executive Compensation

Information regarding the compensation of executive officers and directors of the Company is incorporated by reference from the information under the headings “Executive Compensation and Related Information” and “Director Compensation,” respectively, in our Proxy Statement for the 2015 Annual Meeting of Stockholders.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

Information regarding security ownership of certain beneficial owners and management and related stockholder matters is incorporated by reference from the information under the heading “Security Ownership of Certain Beneficial Owners and Management” in our Proxy Statement for the 2015 Annual Meeting of Stockholders.

Item 13. Certain Relationships and Related Transactions, and Director Independence

Information regarding certain relationships and related transactions and director independence is incorporated by reference from the information under the headings “Corporate Governance” and “Certain Transactions with Related Parties” in our Proxy Statement for the 2015 Annual Meeting of Stockholders.

Item 14. Principal Accountant Fees and Services

The information required by this item is incorporated by reference from the information under the caption “Audit Fees” in our Proxy Statement for the 2015 Annual Meeting of Stockholders.

With the exception of the information incorporated in Items 10, 11, 12, 13 and 14 of this Annual Report on Form 10-K, NetApp’s Proxy Statement is not deemed “filed” as part of this Annual Report on Form 10-K.

PART IV

Item 15. Exhibits, Financial Statement Schedules

(a) Documents filed as part of this report

(1) All Financial Statements

See index to Consolidated Financial Statements in Part II, Item 8 of this Form 10-K

(2) Financial Statement Schedules

All financial statement schedules have been omitted, since the required information is not applicable or is not present in amounts sufficient to require submission of the schedule, or because the information required is included in the consolidated financial statements and notes thereto included in this Form 10-K.

(3) Exhibits required by Item 601 of Regulation S-K

The information required by this Section (a)(3) of Item 15 is set forth on the exhibit index that follows the Signatures page of this Form 10-K.

86

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

NETAPP, INC.
By:	/s/  GEORGE KURIAN
	George Kurian
	Chief Executive Officer (Principal Executive Officer and Principal Operating Officer)
Date:  June 12, 2015

POWER OF ATTORNEY

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints George Kurian and Nicholas R. Noviello, and each of them, as his true and lawful attorneys-in-fact and agents, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this Annual Report on Form 10-K, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, or their or his substitutes, may lawfully do or cause to be done by virtue thereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

Signature	Title	Date
/s/  GEORGE KURIAN	Chief Executive Officer (Principal Executive Officer and Principal Operating Officer)	June 12, 2015
George Kurian
/s/  NICHOLAS R. NOVIELLO	Executive Vice President of Finance and Operations and Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer)	June 12, 2015
Nicholas R. Noviello
/s/  T. MICHAEL NEVENS	Chairman of the Board	June 12, 2015
T. Michael Nevens
/s/  JEFFRY R. ALLEN	Director	June 12, 2015
Jeffry R. Allen
/s/  TOR R. BRAHAM	Director	June 12, 2015
Tor R. Braham
/s/  ALAN L. EARHART	Director	June 12, 2015
Alan L. Earhart
/s/  GERALD HELD	Director	June 12, 2015
Gerald Held
/s/  KATHRYN M. HILL	Director	June 12, 2015
Kathryn M. Hill
/s/  GEORGE T. SHAHEEN	Director	June 12, 2015
George T. Shaheen
/s/  ROBERT T. WALL	Director	June 12, 2015
Robert T. Wall
/s/  RICHARD P. WALLACE	Director	June 12, 2015
Richard P. Wallace

87

EXHIBIT INDEX

		Incorporation by Reference
Exhibit No	Description	Form	File No.	Exhibit	Filing Date
3.1	Certificate of Incorporation of the Company, as amended.	10-Q	000-27130	3.1	November 26, 2013
3.2	Bylaws of the Company, as amended.	8-K	000-27130	3.1	February 13, 2014
4.1	Indenture dated December 12, 2012, by and between the Company and U.S. Bank National Association	8-K	000-27130	4.1	December 12, 2012
4.2	First Supplemental Indenture dated December 12, 2012, by and between the Company and U.S. Bank National Association	8-K	000-27130	4.2	December 12, 2012
4.3	Underwriting Agreement dated June 2, 2014 by and between the Company and Goldman, Sachs & Co. and J.P. Morgan Securities LLC as Managers of the Underwriters.	8-K	000-27130	1.1	June 5, 2014
4.4	Second Supplemental Indenture dated June 5, 2014 by and between the Company and U.S. Bank National Association.	8-K	000-27130	4.1	June 5, 2014
10.1*	Form of Indemnification Agreement by and between the Company and each of its directors and executive officers.	10-Q	000-27130	10.1	August 28, 2014
10.2*	The Company’s Amended and Restated Change of Control Severance Agreement (CEO).	10-Q	000-27130	10.4	December 2, 2009
10.3*	Form of Amendment to Change of Control Severance Agreement	10-Q	000-27130	10.1	August 30, 2012
10.4*	Form of Change Control Severance Agreement (Non-CEO Executives)	10-Q	000-27130	10.2	August 30, 2012
10.5*	Form of Amendment No. 1 to Change of Control Severance Agreement.	10-K	000-27130	10.64	June 19, 2012
10.6*	The Company’s Amended and Restated Executive Compensation Plan, as amended effective July 23, 2014.	DEF 14A	000-27130	Appendix C	July 25, 2014
10.7*	The Company’s Deferred Compensation Plan.	8-K	000-27130	2.1	July 7, 2005
10.8*	The Company’s Amended and Restated Employee Stock Purchase Plan, as amended effective July 23, 2014.	DEF 14A	000-27130	Appendix B	July 25, 2014
10.9*	The Company’s Amended and Restated 1995 Stock Incentive Plan.	DEF 14A	000-27130		August 21, 1998
10.10*	Form of Stock Option Agreement approved for use under the Company’s amended and restated 1995 Stock Option Plan.	10-K	000-27130	10.21	July 8, 2005

88

		Incorporation by Reference
Exhibit No	Description	Form	File No.	Exhibit	Filing Date
10.11*	Form of Stock Issuance Agreement approved for use under the Company’s amended and restated 1995 Stock Option Plan (Restricted Stock).	10-K	000-27130	10.23	July 8, 2005
10.12*	Form of Stock Option Agreement approved for use under the Company’s amended and restated 1995 Stock Option Plan (Chairman of the Board or any Board Committee Chairperson).	10-K	000-27130	10.22	July 8, 2005
10.13*	The Company’s Amended and Restated 1999 Stock Option Plan, as amended effective July 23, 2014.	10-Q	000-27130	10.1	November 25, 2014
10.14*	Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan.	10-Q	000-27130	10.3	November 26, 2013
10.15*	Form of Restricted Stock Unit Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (Employees).	10-Q	000-27130	10.4	November 26, 2013
10.16*	Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (Non-Employee Director Automatic Stock Option — Initial).	10-K	000-27130	10.29	July 8, 2005
10.17*	Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (Non-Employee Director Automatic Stock Option — Annual).	10-K	000-27130	10.28	July 8, 2005
10.18*	Form of Restricted Stock Unit Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (Non-Employees Directors).	10-K	000-27130	10.17	June 18, 2010
10.19*	Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (China).	10-K	000-27130	10.27	July 8, 2005
10.20*	Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (France).	10-K	000-27130	10.30	July 8, 2005
10.21*	Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (India).	10-K	000-27130	10.31	July 8, 2005
10.22*	Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (United Kingdom).	10-K	000-27130	10.32	July 8, 2005

89

		Incorporation by Reference
Exhibit No	Description	Form	File No.	Exhibit	Filing Date
10.23*	Form of Stock Option Agreement approved for use under the Company’s amended and restated 1999 Stock Option Plan (Israel).	10-K	000-27130	10.81	June 24, 2008
10.24*	Form of Stock Option Grant Notice and Option Agreement for use under the Decru, Inc. Amended and Restated 2001 Equity Incentive Plan and the 2001 Equity Incentive Plan filed under Attachment II.	S-8	333-128098	99.1	September 2, 2005
10.25*	Form of Stock Option Grant Notice and Option Agreement for use under the Decru, Inc. 2001 Equity Incentive Plan and the 2001 Equity Incentive Plan filed under Attachment II.	S-8	333-128098	99.2	September 2, 2005
10.26*	Form of Restricted Stock Bonus Grant Notice and Agreement under the Decru, Inc. 2001 Equity Incentive Plan.	S-8	333-128098	99.4	September 2, 2005
10.27*	Onaro, Inc. Amended and Restated 2002 Stock Option and Incentive Plan (including Appendix — Israeli Taxpayers).	S-8	333-149375	4.1	February 25, 2008
10.28*	Bycast Inc. 2010 Equity Incentive Plan	S-8	333-167619	99.1	June 18, 2010
10.29*	Incentive Stock Option Plan of Bycast Inc.	S-8	333-167619	99.2	June 18, 2010
10.30	ionGrid, Inc. 2013 Equity Incentive Plan	S-8	333-186967	99.1	February 28, 2013
10.31	Form of Restricted Stock Unit Agreement under the ionGrid, Inc. 2013 Equity Incentive Plan	S-8	333-186967	99.2	February 28, 2013
10.32*	Outside Director Compensation Policy.	10-K	000-27130	10.65	June 19, 2012
10.33	Credit Agreement, dated December 21, 2012, by and among the Company, the lenders party thereto, JP Morgan Chase Bank, N.A., as administrative agent, Morgan Stanley Senior Funding, Inc. and Wells Fargo Bank, National Association, as Co-Syndication Agents, and J.P. Morgan Securities LLC, Morgan Stanley Funding, Inc. and Wells Fargo Securities LLC, as Joint Bookrunners and Joint Lead Arrangers	8-K	000-27130	10.1	December 28, 2012
10.34	Collared Accelerated Share Repurchase Transaction dated as of June 5, 2013, by and between the Company and Goldman, Sachs & Co.	10-Q	000-27130	10.1	November 26, 2013
21.1	Subsidiaries of the Company.	—	—	—	—
23.1	Consent of Independent Registered Public Accounting Firm.	—	—	—	—
24.1	Power of Attorney (see signature page).	—	—	—	—

90

		Incorporation by Reference
Exhibit No	Description	Form	File No.	Exhibit	Filing Date
31.1	Certification of the Chief Executive Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002.	—	—	—	—
31.2	Certification of the Chief Financial Officer pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002.	—	—	—	—
32.1	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002.	—	—	—	—
32.2	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002.	—	—	—	—
101.INS	XBRL Instance Document	—	—	—	—
101.SCH	XBRL Taxonomy Extension Schema Document	—	—	—	—
101.CAL	XBRL Taxonomy Calculation Linkbase Document	—	—	—	—
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document	—	—	—	—
101.LAB	XBRL Taxonomy Label Linkbase Document	—	—	—	—
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document	—	—	—	—

* Identifies management plan or compensatory plan or arrangement.

† The schedules and other attachments to this exhibit have been omitted. The Company agrees to furnish a copy of any omitted schedules or attachments to the SEC upon request.

91

EX-21.1

Exhibit 21.1

SUBSIDIARIES OF THE COMPANY

Name	Jurisdiction of Incorporation or Organization
NetApp Argentina S.R.L.	Argentina
NetApp Australia Pty. Ltd.	Australia
NetApp Austria GesMBH	Austria
NetApp Belgium BVBA	Belgium
NetApp Global Limited	Bermuda
NetApp Global Holdings Ltd.	Bermuda
NetApp Brasil Solucoes de Gerenciamento e Armazenamento de Dados Ltda	Brazil
NetApp U.S. Public Sector, Inc.	California
NetCache, Inc.	California
NetApp Canada Ltd.	Canada
NetApp VTC, Inc.	Canada
NetApp Chile Limitada	Chile
NetApp (Shanghai) Commercial Co., Ltd.	China
NetApp Holdings Ltd.	Cyprus
Blue Steel Acquisition LLC	Delaware
NetApp Capital Solutions, Inc.	Delaware
Onaro, Inc.	Delaware
NetApp Denmark ApS	Denmark
NetApp Finland Oy	Finland
NetApp France SAS	France
NetApp Deutschland GmbH	Germany
NetApp (China) Limited	Hong Kong
NetApp (Hong Kong) Limited	Hong Kong
NetApp India Private Limited	India
NetApp India Marketing and Services Private Limited	India
PT. NetApp Indonesia	Indonesia
Network Appliance (Sales) Limited	Ireland
NetApp Israel R&D, Ltd.	Israel
NetApp Israel Sales Ltd.	Israel
Onaro Israel, Ltd.	Israel
Scharfnet, Ltd	Israel
NetApp Italia Srl.	Italy
NetApp K.K.	Japan
NetApp Korea Limited	Korea
NetApp Luxembourg S.a.r.l.	Luxembourg
NetApp Switzerland GmbH	Switzerland
NetApp Malaysia Sdn Bhd	Malaysia
NetApp Mexico S. de R.L. de C.V.	Mexico
NetApp New Zealand Limited	New Zealand
NetApp Nigeria Limited	Nigeria
NetApp Norway AS	Norway
NetApp Poland Sp. z.o.o.	Poland
NetApp Russia LLC	Russia
Network Appliance Saudi Arabia LLC	Saudi Arabia
NetApp Singapore Pte. Ltd.	Singapore
NetApp South Africa (Pty) Limited	South Africa
NetApp Spain Sales SL	Spain
Network Appliance Sweden AB	Sweden
NetApp (Thailand) Limited	Thailand
Decru B.V.	The Netherlands
NA Technology CV	The Netherlands
NetApp Asia Pacific Holdings B.V.	The Netherlands
NetApp B.V.	The Netherlands
NetApp Holding & Manufacturing BV NAHM	The Netherlands
NetApp Teknoloji Limited Sirketi	Turkey
NetApp UK Ltd.	United Kingdom
NetApp Vietnam Company Limited	Vietnam

EX-23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-128098, 333-149375, 333-167619, 333-186967, 333-200586, 333-192564, 333-178213, 333-170089, 333-162696, 333-154867, 333-147034, 333-138337, 333-133564, 333-128098, 333-119640, 333-113200, 333-109627, 333-100837, 333-73982, 333-57378, 333-32318 and 333-40307 on Form S-8 and Registration Statement No. 333-185217 on Form S-3 of our reports dated June 12, 2015, relating to the consolidated financial statements of NetApp, Inc. (the “Company”) and the effectiveness of the Company’s internal control over financial reporting, appearing in this Annual Report on Form 10-K of the Company for the year ended April 24, 2015.

/s/ DELOITTE & TOUCHE LLP

San Jose, California

June 12, 2015

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO SECTION 302(a)

OF THE SARBANES-OXLEY ACT OF 2002

I, George Kurian, certify that:

1) I have reviewed this Annual Report on Form 10-K of NetApp, Inc.;

2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3) Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4) The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5) The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/s/ GEORGE KURIAN

George Kurian

Chief Executive Officer

(Principal Executive Officer and Principal Operating Officer)

Date: June 12, 2015

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO SECTION 302(a)

OF THE SARBANES-OXLEY ACT OF 2002

I, Nicholas R. Noviello, certify that:

1) I have reviewed this Annual Report on Form 10-K of NetApp, Inc.;

2) Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3) Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4) The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5) The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

/s/ NICHOLAS R. NOVIELLO

Nicholas R. Noviello

Executive Vice President of Finance and Operations and Chief Financial Officer

(Principal Financial Officer and Principal Accounting Officer)

Date: June 12, 2015

EX-32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, George Kurian, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Annual Report of NetApp, Inc., on Form 10-K for the year ended April 24, 2015 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and that information contained in such Annual Report on Form 10-K fairly presents, in all material respects, the financial condition and results of operations of NetApp, Inc.

/s/ GEORGE KURIAN

George Kurian

Chief Executive Officer

(Principal Executive Officer and Principal Operating Officer)

Date: June 12, 2015

EX-32.2

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Nicholas R. Noviello, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Annual Report of NetApp, Inc., on Form 10-K for the year ended April 24, 2015 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and that information contained in such Annual Report on Form 10-K fairly presents, in all material respects, the financial condition and results of operations of NetApp, Inc.

/s/ NICHOLAS R. NOVIELLO

Nicholas R. Noviello

Executive Vice President of Finance and Operations and Chief Financial Officer

(Principal Financial Officer and Principal Accounting Officer)

Date: June 12, 2015

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Income Taxes (Tables)

12 Months Ended

Apr. 24, 2015

Income Tax Disclosure [Abstract]

Income Before Income Taxes

Income before income taxes is as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Domestic	$	252.9	$	120.5	$	(63.8	)
Foreign		459.9		620.2		630.4
Total	$	712.8	$	740.7	$	566.6

Provision for Income Taxes

The provision for income taxes consists of the following (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Current:
Federal	$	103.6		$	123.7		$	85.3
State		11.7			14.6			14.6
Foreign		40.3			40.9			38.0
Total current		155.6			179.2			137.9
Deferred:
Federal		8.0			(64.8	)		(56.9	)
State		(3.3	)		(6.1	)		(17.8	)
Foreign		(7.4	)		(5.1	)		(1.9	)
Total deferred		(2.7	)		(76.0	)		(76.6	)
Provision for income taxes	$	152.9		$	103.2		$	61.3

Schedule of Effective Income Tax Rate Reconciliation

The provision for income taxes differs from the amount computed by applying the statutory federal income tax rate as follows (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Tax computed at federal statutory rate	$	249.5		$	259.2		$	198.3
State income taxes, net of federal benefit		5.4			5.6			(2.0	)
Foreign earnings in lower tax jurisdictions		(141.0	)		(163.3	)		(144.4	)
Stock-based compensation		5.5			9.8			18.4
Research and experimentation credits		(13.7	)		(8.7	)		(12.1	)
Resolution of income tax examinations		46.4			—			0.1
Other		0.8			0.6			3.0
Provision for income taxes	$	152.9		$	103.2		$	61.3

Deferred Tax Assets and Liabilities

The components of our deferred tax assets and liabilities are as follows (in millions):

	April 24, 2015			April 25, 2014
Deferred tax assets:
Reserves and accruals	$	94.3		$	89.3
Acquired intangibles		43.8			22.3
Net operating loss and credit carryforwards		79.6			87.6
Stock-based compensation		70.4			73.3
Deferred revenue		297.7			318.9
Other		27.0			19.8
Gross deferred tax assets		612.8			611.2
Valuation allowance		(57.7	)		(49.6	)
Deferred tax assets, net of valuation allowance		555.1			561.6
Deferred tax liabilities:
Reserves and accruals		4.0			3.9
Acquired intangibles		13.7			10.0
Property and equipment		26.3			30.8
Other		3.5			2.6
Total deferred tax liabilities		47.5			47.3
Deferred tax assets, net of valuation allowance and deferred tax liabilities	$	507.6		$	514.3

Net Deferred Tax Assets

Net deferred tax assets consist of the following (in millions):

	April 24, 2015		April 25, 2014
Current deferred tax assets, net	$	251.7	$	269.3
Non-current deferred tax assets, net	$	255.9	$	245.0

Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Balance at beginning of period	$	235.9		$	189.6		$	161.0
Additions based on tax positions related to the current year		21.7			26.9			34.5
Additions for tax positions of prior years		101.2			23.8			1.0
Decreases for tax positions of prior years		(29.3	)		(4.4	)		(6.9	)
Settlements		(57.6	)		—			—
Balance at end of period	$	271.9		$	235.9		$	189.6

Summary of Tax Years Remain Subject to Examinations under Major Tax Jurisdictions

The tax years that remain subject to examination for our major tax jurisdictions are shown below:

Fiscal Years Subject to Examination for Major Tax Jurisdictions at April 24, 2015

2008 — 2015	United States — federal income tax
2008 — 2015	United States — state and local income tax
2011 — 2015	Australia
2009 — 2015	Germany
2006 — 2015	India
2009 — 2015	Japan
2011 — 2015	The Netherlands
2013 — 2015	United Kingdom
2008 — 2015	Canada

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Employee Benefits and Deferred Compensation - Additional Information (Detail) (USD $)	12 Months Ended
	Apr. 24, 2015
Defined Contribution Plan Disclosure [Line Items]
Employee 401(k) Plan, Description	An employee receives the full 4% match when he/she contributes at least 6% of his/her eligible earnings, up to a maximum calendar year matching contribution of $6,000.
Employee contribution percentage	6.00%
Maximum amount of matching contribution	$ 6,000
Contribution Match First 2% Eligible Earnings Employee
Defined Contribution Plan Disclosure [Line Items]
Percentage of employee contributions matched	100.00%
Percentage of earnings on employee contributions matched	2.00%
Contribution Match Next 4% Eligible Earnings Employee
Defined Contribution Plan Disclosure [Line Items]
Percentage of employee contributions matched	50.00%
Percentage of earnings on employee contributions matched	4.00%

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Goodwill and Purchased Intangible Assets, Net - Amortization Expense for Purchased Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Acquired Finite Lived Intangible Assets [Line Items]
Amortization expense	$ 63.7	$ 59.1	$ 85.8
Cost of revenues | Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Amortization expense	62.6	57.1	55.9
Operating expenses | Customer Contracts/Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Amortization expense	0.7	1.0	25.2
Operating expenses | Other Purchased Intangibles
Acquired Finite Lived Intangible Assets [Line Items]
Amortization expense	$ 0.4	$ 1.0	$ 4.7

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Business Combinations - Preliminary Fair Values of Assets Acquired and Liabilities Assumed (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Business Acquisition [Line Items]
Goodwill	$ 1,027.4	$ 988.1	$ 988.1
Fiscal 2015 Acquisitions
Business Acquisition [Line Items]
Prepaid expenses and other current assets	2.7
Finite-lived intangible assets	31.8
Goodwill	39.3
Deferred income taxes	10.8
Other non-current assets	1.1
Total assets acquired	85.7
Deferred revenue	(1.1)
Total purchase price	$ 84.6

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Financial Instruments and Fair Value Measurements - Contractual Maturities of Debt Investments (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015
Investments Debt And Equity Securities [Abstract]
Due in one year or less, Amortized Cost	$ 1,437.8
Due after one year through five years, Amortized Cost	2,211.2
Total, Amortized Cost	3,649.0
Due in one year or less, Estimated Fair Value	1,440.2
Due after one year through five years, Estimated Fair Value	2,219.7
Total, Estimated Fair Value	$ 3,659.9

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Goodwill and Purchased Intangible Assets, Net - Future Amortization Expense Related to Purchased Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Goodwill And Intangible Assets Disclosure [Abstract]
2016	$ 58.4
2017	13.9
2018	9.4
2019	5.2
2020	2.6
Net Assets	$ 89.5	$ 121.5

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Financing Arrangements - Amounts Due under Other Long-Term Financing Arrangements (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Debt Disclosure [Abstract]
Other long-term financing arrangements	$ 15.9	$ 13.1
Less: current portion	(9.5)	(6.6)
Non-current portion of other long-term financing arrangements	$ 6.4	$ 6.5

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Net Income per Share - Computation of Basic and Diluted Net Income Per Share (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Net income per share:
Net income	$ 559.9	$ 637.5	$ 505.3
Shares used in basic computation	315.5	340.3	361.5
Dilutive impact of employee equity award plans	5.2	6.9	5.4
Dilutive impact of assumed conversion of Convertible Notes	0	0.5	1.1
Dilutive impact of warrants	0	0.2	0
Shares used in diluted computation	320.7	347.9	368.0
Basic	$ 1.77	$ 1.87	$ 1.40
Diluted	$ 1.75	$ 1.83	$ 1.37

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Statements of Cash Flows Additional Information - Supplemental Cash Flows and Non Cash Investing Activities (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Non-cash Investing Activities:
Reclassification of equity component of Convertible Notes	$ 0	$ 0	$ 62.6
Capital expenditures incurred but not paid	12.1	18.0	20.2
Acquisition of software through long-term financing	12.3	11.4	0.8
Supplemental Cash Flow Information:
Income taxes paid, net of refunds	97.4	58.1	46.7
Interest paid	$ 32.7	$ 35.2	$ 22.8

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Other Income Expense (Tables)

12 Months Ended

Apr. 24, 2015

Nonoperating Income Expense [Abstract]

Other Income (Expense),Net

Other income (expense), net consists of the following (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Interest income	$	36.6		$	34.9		$	42.2
Interest expense		(42.0	)		(36.1	)		(91.7	)
Other income, net		1.7			7.6			8.3
Total other income (expense), net	$	(3.7	)	$	6.4		$	(41.2	)

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Stockholders' Equity - Additional Information (Detail) (USD $)	12 Months Ended			143 Months Ended	0 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013	Apr. 24, 2015	May 20, 2015	Sep. 05, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense related to equity awards	$ 358,700,000			$ 358,700,000
Unrecognized compensation expense will be amortized on a straight-line basis over a weighted-average remaining period, in years	2 years 2 months 12 days
Stock repurchase program, authorized amount	9,600,000,000			9,600,000,000
Allocation of purchase price of share repurchases	1,165,200,000	1,881,500,000	590,000,000
Repurchase of common stock, shares	29,600,000	47,300,000	18,100,000	214,000,000
Average price of common stock repurchased under repurchase program	$ 39.30	$ 39.78	$ 32.68	$ 33.48
Aggregate purchase price of common stock authorized under repurchase program				7,200,000,000
Prepayment to purchase shares of common stock		750,000,000
Accelerated share repurchases, weighted-average price		$ 39.13
Preferred stock, shares authorized	5,000,000	5,000,000		5,000,000
Preferred stock, shares issued	0	0		0
Preferred stock, shares outstanding	0	0		0
Dividends declared			0
Dividends paid	207,400,000	202,300,000	0
Cash dividends declared, per common share	$ 0.66	$ 0.60
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash dividends declared, per common share					$ 0.18
Cash dividend payable date					Jul. 23, 2015
Cash dividend record date					Jul. 10, 2015
Additional Paid-in Capital
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocation of purchase price of share repurchases	812,800,000	813,400,000	176,200,000
Value of forward contract		13,900,000
Dividends paid	52,000,000	50,400,000
Retained Earnings
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocation of purchase price of share repurchases	352,400,000	1,068,000,000	413,800,000
Dividends paid	155,400,000	151,900,000
Accelerated Share Repurchase Agreement
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Repurchase of common stock, shares		19,200,000
Share Repurchase Authorization Increase
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock repurchase program, authorized amount	2,500,000,000			2,500,000,000
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares authorized						5,000,000
Shares available for grant	8,900,000			8,900,000
Share offering period for eligible employees	24 months
Number of consecutive purchase periods	4
Duration of purchase period	6 months
Percentage of discount from quoted market price, employees entitled to buy shares (ESPP)	15.00%
1999 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Decrease in number of shares reserved for issuance for every share subject to a full value award	2
Number of shares that may be granted to a participant in any calendar year	1,000,000
Maximum initial value of performance units a participant may receive	$ 5,000,000
Number of performance shares a participant may receive in a calendar year	1,000,000
Additional shares authorized	7,500,000
Shares available for grant	12,700,000			12,700,000
1999 Stock Option Plan | Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price of common stock, percentage	100.00%
Award granted, vesting period	4 years
Options granted period term	7 years
1999 Stock Option Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award granted, vesting period	4 years
Vesting rate	25.00%

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Commitments and Contingencies - Additional Information (Detail) (USD $)	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Commitments and Contingencies Disclosure [Line Items]
Rent expense	$ 67,000,000	$ 65,500,000	$ 64,900,000
Accrued purchase commitments with contract manufacturers	16,900,000	11,500,000
Financial guarantees not recorded on consolidated balance sheets	9,300,000
Legal proceedings and claims	0
Maximum
Commitments and Contingencies Disclosure [Line Items]
Terms of recourse leases	3 years
Contract Manufacturers
Commitments and Contingencies Disclosure [Line Items]
Purchase commitments	295,000,000
Construction Related Obligations
Commitments and Contingencies Disclosure [Line Items]
Purchase commitments	60,000,000
Other Purchase Obligations
Commitments and Contingencies Disclosure [Line Items]
Purchase commitments	$ 211,000,000

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Financial Instruments and Fair Value Measurements - Reconciliation of Beginning and Ending Balance of Level Three Auction Rate Securities Measured at Fair Value On Recurring Basis (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Fair Value Disclosures [Abstract]
Balance at beginning of year	$ 36.0	$ 42.0	$ 51.0
Total unrealized gains, net included in other comprehensive income (loss)	0.9	1.3	0.5
Total realized gains included in earnings	0	0.7	1.1
Sales	(10.0)	(8.0)	0
Settlements	(26.9)	0	(10.6)
Balance at end of year	$ 0	$ 36.0	$ 42.0

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Stockholders' Equity - Summary of Activities Related to Dividends on Common Stock (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Dividends, Common Stock [Abstract]
Dividends per share declared	$ 0.66	$ 0.60
Dividend payments	$ 207.4	$ 202.3	$ 0
Additional Paid-in Capital
Dividends, Common Stock [Abstract]
Dividend payments	52.0	50.4
Retained Earnings
Dividends, Common Stock [Abstract]
Dividend payments	$ 155.4	$ 151.9

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Balance Sheet Details - Inventories (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Inventory Disclosure [Abstract]
Purchased components	$ 36.2	$ 17.6
Finished goods	110.3	104.8
Inventories	$ 146.5	$ 122.4

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Segment Geographic and Significant Customer Information - Schedule of Property and Equipment Net by Geographic Areas (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Segment Reporting, Asset Reconciling Item [Line Items]
Property and equipment	$ 1,029.9	$ 1,108.8
U.S.
Segment Reporting, Asset Reconciling Item [Line Items]
Property and equipment	926.9	1,021.4
International
Segment Reporting, Asset Reconciling Item [Line Items]
Property and equipment	$ 103.0	$ 87.4

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Financing Arrangements - Future Principal Debt Maturities (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Debt Disclosure [Abstract]
2018	$ 750.0
Thereafter	750.0
Total	$ 1,500.0	$ 1,000.0

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Stockholders' Equity - Income Tax Effects Associated with Employee Stock Transactions (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Income tax benefit associated with employee stock transactions	$ 56.9	$ 40.5	$ 53.8

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Stockholders' Equity - Additional Information Related to Stock Options (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Intrinsic value of exercises	$ 69.9	$ 90.7	$ 46.1
Proceeds received from exercises	116.6	163.7	56.5
Fair value of options vested	$ 33.4	$ 45.3	$ 55.9

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Stockholders' Equity - Summary of Valuation Assumptions (Detail) (USD $)	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term in years	4 years 9 months 18 days	4 years 9 months 18 days	4 years 9 months 18 days
Risk-free interest rate	1.60%	1.10%	0.60%
Expected volatility	29.00%	34.00%	41.00%
Expected dividend yield	1.80%	1.60%	0.00%
Weighted-average fair value per share granted	$ 8.24	$ 9.85	$ 11.52
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	0.60%	0.50%
Expected dividend yield	1.80%	1.60%	0.00%
RSUs granted, Weighted-Average Grant Date Fair Value	$ 35.80	$ 38.61	$ 29.94
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected term in years	1 year 3 months 18 days	1 year 2 months 12 days	1 year 2 months 12 days
Risk-free interest rate	0.20%	0.20%	0.20%
Expected volatility	27.00%	31.00%	40.00%
Expected dividend yield	1.80%	1.60%	0.00%
RSUs granted, Weighted-Average Grant Date Fair Value	$ 9.81	$ 10.83	$ 10.36

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Financing Arrangements - Amount of Interest Expense Recognized Related to Convertible Notes (Detail) (Convertible Notes Payable, USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 25, 2014	Apr. 26, 2013
Convertible Notes Payable
Debt Instrument [Line Items]
Contractual coupon interest expense	$ 2.5	$ 22.0
Amortization of debt discount	7.1	55.5
Amortization of debt issuance costs	0.6	4.8
Less capitalized interest	0	(1.1)
Total interest expense related to Convertible Notes	$ 10.2	$ 81.2

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Financial Instruments and Fair Value Measurements - Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015		Apr. 25, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	$ 5,326.2		$ 5,003.3
Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	(1,523.6)		(1,000.0)
Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange contracts assets	3.4	[1]	0.4	[1]
Accrued Expenses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange contracts liabilities			(1.9)	[2]
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	1,811.9		2,359.1
Quoted Prices in Active Markets for Identical Assets (Level 1) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	0		0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange contracts assets	0	[1]	0	[1]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Accrued Expenses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange contracts liabilities			0	[2]
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	3,514.3		2,644.2
Significant Other Observable Inputs (Level 2) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt	(1,523.6)		(1,000.0)
Significant Other Observable Inputs (Level 2) | Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange contracts assets	3.4	[1]	0.4	[1]
Significant Other Observable Inputs (Level 2) | Accrued Expenses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange contracts liabilities			(1.9)	[2]
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			0
Significant Unobservable Inputs (Level 3) | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt			0
Significant Unobservable Inputs (Level 3) | Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange contracts assets			0	[1]
Significant Unobservable Inputs (Level 3) | Accrued Expenses
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency exchange contracts liabilities			0	[2]
Cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	1,666.3		2,174.0
Cash | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	1,666.3		2,174.0
Cash | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			0
Cash | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			0
Corporate Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	2,257.6		2,152.3
Corporate Bonds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0		0
Corporate Bonds | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	2,257.6		2,152.3
Corporate Bonds | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			0
U.S. Treasury and Government Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	1,058.2		263.6
U.S. Treasury and Government Debt Securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	145.6		185.1
U.S. Treasury and Government Debt Securities | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	912.6		78.5
U.S. Treasury and Government Debt Securities | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			0
Foreign Government Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	37.9
Foreign Government Debt Securities | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0
Foreign Government Debt Securities | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	37.9
Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	20.0		168.4
Commercial Paper | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0		0
Commercial Paper | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	20.0		168.4
Commercial Paper | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			0
Certificates of Deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	286.2		245.0
Certificates of Deposit | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0		0
Certificates of Deposit | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	286.2		245.0
Certificates of Deposit | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			0
Mutual Funds | Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	2.8	[1]	6.4	[1]
Mutual Funds | Other Noncurrent Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	29.4	[3]	26.3	[3]
Mutual Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	2.8	[1]	6.4	[1]
Mutual Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Noncurrent Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	29.4	[3]	26.3	[3]
Mutual Funds | Significant Other Observable Inputs (Level 2) | Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	[1]	0	[1]
Mutual Funds | Significant Other Observable Inputs (Level 2) | Other Noncurrent Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets	0	[3]	0	[3]
Mutual Funds | Significant Unobservable Inputs (Level 3) | Other Current Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			0	[1]
Mutual Funds | Significant Unobservable Inputs (Level 3) | Other Noncurrent Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			0	[3]
Auction Rate Securities | Other Noncurrent Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			36.0	[1]
Auction Rate Securities | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Noncurrent Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			0	[1]
Auction Rate Securities | Significant Other Observable Inputs (Level 2) | Other Noncurrent Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			0	[1]
Auction Rate Securities | Significant Unobservable Inputs (Level 3) | Other Noncurrent Assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets			$ 36.0	[1]

[1] Reported as other current assets in the consolidated balance sheets

[2] Reported as accrued expenses in the consolidated balance sheets

[3] Reported as other non-current assets in the consolidated balance sheets

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Employee Benefits and Deferred Compensation

12 Months Ended

Apr. 24, 2015

Compensation And Retirement Disclosure [Abstract]

Employee Benefits and Deferred Compensation

17. Employee Benefits and Deferred Compensation

Employee 401(k) Plan

Our 401(k) Plan is a deferred salary arrangement under Section 401(k) of the Internal Revenue Code. Under the 401(k) Plan, participating U.S. employees may defer a portion of their pre-tax earnings, up to the IRS annual contribution limit. Effective January 1, 2015, we match 100% of the first 2% of eligible earnings an employee contributes to the 401(k) Plan, and then match 50% of the next 4% of eligible earnings an employee contributes. An employee receives the full 4% match when he/she contributes at least 6% of his/her eligible earnings, up to a maximum calendar year matching contribution of $6,000. Effective the same date, employer matching contributions made in the current and previous years vested immediately. Our employer matching contributions to the 401(k) Plan were as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
401(k) matching contributions	$	16.3	$	19.6	$	19.9

Deferred Compensation Plan

We have a non-qualified deferred compensation plan that allows a group of employees within the U.S. to contribute base salary and commissions or incentive compensation on a tax deferred basis in excess of the IRS limits imposed on 401(k) plans. The marketable securities related to these investments are held in a Rabbi Trust. The related deferred compensation plan assets and liabilities under the non-qualified deferred compensation plan were as follows (in millions):

	April 24, 2015		April 25, 2014
Deferred compensation plan assets	$	32.2	$	32.7
Deferred compensation liabilities reported as:
Accrued expenses	$	2.8	$	6.4
Other long-term liabilities	$	29.4	$	26.3

Postretirement Health Care Plan

We maintain a plan to provide postretirement health and welfare benefits to certain executives who meet certain age and service requirements. Coverage continues through the duration of the lifetime of the retiree or the retiree’s spouse, whichever is longer. There is no funding requirement associated with the plan and none of the benefit obligation was funded as of April 24, 2015. Assumed health care cost trend rates have a significant effect on the amounts reported for the health care plan.

International Defined Benefit Plans

We maintain various defined benefit plans to provide termination and postretirement benefits to certain eligible employees outside of the U.S. We also provide disability benefits to certain eligible employees in the U.S. Eligibility is determined based on the terms of our plans and local statutory requirements. Assumed discount rates and expected long-term returns on plan assets have significant effects on the amounts reported for the defined benefit plans.

Funded Status

The funded status of our postretirement health care and international termination and postretirement benefits was as follows (in millions):

	April 24, 2015			April 25, 2014
Fair value of plan assets	$	19.7		$	18.7
Benefit obligations		(60.2	)		(45.7	)
Unfunded obligations	$	(40.5	)	$	(27.0	)

Amounts recognized in the consolidated balance sheets were as follows (in millions):

	April 24, 2015			April 25, 2014
Other long-term liabilities	$	40.5		$	27.0
AOCI	$	(12.4	)	$	(4.8	)

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Business Combinations - Allocation of Purchase Consideration for Business Combination (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Business Acquisition [Line Items]
Goodwill	$ 1,027.4	$ 988.1	$ 988.1
Fiscal 2013 Acquisitions
Business Acquisition [Line Items]
Net liabilities assumed			(5.1)
Finite-lived intangible assets			30.3
Goodwill			82.9
Total purchase price			$ 108.1

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Employee Benefits and Deferred Compensation (Tables)

12 Months Ended

Apr. 24, 2015

Compensation And Retirement Disclosure [Abstract]

Amount Contributed Under 401(k) Plans

Our employer matching contributions to the 401(k) Plan were as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
401(k) matching contributions	$	16.3	$	19.6	$	19.9

Deferred Compensation Plans

The related deferred compensation plan assets and liabilities under the non-qualified deferred compensation plan were as follows (in millions):

	April 24, 2015		April 25, 2014
Deferred compensation plan assets	$	32.2	$	32.7
Deferred compensation liabilities reported as:
Accrued expenses	$	2.8	$	6.4
Other long-term liabilities	$	29.4	$	26.3

Schedule of Defined Benefit Plans

The funded status of our postretirement health care and international termination and postretirement benefits was as follows (in millions):

	April 24, 2015			April 25, 2014
Fair value of plan assets	$	19.7		$	18.7
Benefit obligations		(60.2	)		(45.7	)
Unfunded obligations	$	(40.5	)	$	(27.0	)

Schedule of Amounts Recognized in Balance Sheet

Amounts recognized in the consolidated balance sheets were as follows (in millions):

	April 24, 2015			April 25, 2014
Other long-term liabilities	$	40.5		$	27.0
AOCI	$	(12.4	)	$	(4.8	)

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Financing Arrangements - Additional Information (Detail) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Apr. 24, 2015 Extension	Apr. 25, 2014	Apr. 26, 2013	Jun. 10, 2008
Debt Instrument [Line Items]
Notes issued, principal amount	$ 1,500,000,000	1,000,000,000
Notes issued, issuance discount	5,000,000	4,500,000
Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, amount	250,000,000
Credit facility, date expiry	Dec. 21, 2017
Credit facility, increase in facility	100,000,000
Credit facility, number of extensions	2
Credit facility, extensions period	1 year
Credit facility, outstanding borrowings	0
Common Stock
Debt Instrument [Line Items]
Conversion of convertible notes		4.9
Minimum | Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, base rate	0.20%
Interest coverage ratio	350.00%
Maximum | Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, base rate	1.20%
Leverage ratio	300.00%
Put Option | Common Stock
Debt Instrument [Line Items]
Convertible Note Hedge number of shares contracted to sell			31.8
Convertible Note Hedge Exercise Price			$ 31.85
Convertible note hedge and warrants exercised and settled with shares of common stock		(3.9)
Warrant | Common Stock
Debt Instrument [Line Items]
Convertible note hedge and warrants exercised and settled with shares of common stock		1.1
Outstanding warrants, number of shares		39.7
Exercise price of warrants		41.28
Warrants exercised, number of shares		31.9
Warrant | Weighted Average | Common Stock
Debt Instrument [Line Items]
Exercise price of warrants		43.09
Convertible Notes Payable
Debt Instrument [Line Items]
Notes issued, principal amount				1,265,000,000
Notes issued, interest rate				1.75%
Convertible Notes, maturity date		Jun. 01, 2013
Conversion factor for convertible notes		31.40
Denominator of principal amount upon which conversion rate is based		1,000
Conversion price of notes to shares of common stock		31.85
Conversion of convertible notes		4.9
Excess conversion value over principal amount of Convertible Notes		178,900,000
Long-term debt				1,017,000,000
Effective interest rate				6.31%
Notes issued, issuance discount				248,000,000
Issuance costs on Convertible Notes				21,400,000
Equity Components Of Convertible Notes
Debt Instrument [Line Items]
Issuance costs on Convertible Notes				5,200,000
Foreign Currency Sub Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, amount	100,000,000
Letter Of Credit Sub Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, amount	50,000,000
Swingline Sub Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Credit facility, amount	10,000,000
Senior Notes
Debt Instrument [Line Items]
Long-term debt	1,523,600,000	1,000,000,000
Senior Notes | Due 2021
Debt Instrument [Line Items]
Notes issued, principal amount	500,000,000	0
Effective interest rate	3.54%
Senior Notes | Due 2017
Debt Instrument [Line Items]
Notes issued, principal amount	750,000,000	750,000,000
Effective interest rate	2.25%	2.25%
Senior Notes | Due 2022
Debt Instrument [Line Items]
Notes issued, principal amount	$ 250,000,000	250,000,000
Effective interest rate	3.43%	3.43%

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Income Taxes - Provision for Income Taxes (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current, Federal	$ 103.6	$ 123.7	$ 85.3
Current, State	11.7	14.6	14.6
Current, Foreign	40.3	40.9	38.0
Total current	155.6	179.2	137.9
Deferred, Federal	8.0	(64.8)	(56.9)
Deferred, State	(3.3)	(6.1)	(17.8)
Deferred, Foreign	(7.4)	(5.1)	(1.9)
Total deferred	(2.7)	(76.0)	(76.6)
Provision for income taxes	$ 152.9	$ 103.2	$ 61.3

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Derivatives and Hedging Activities (Tables)

12 Months Ended

Apr. 24, 2015

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Schedule of Notional Value of Outstanding Foreign Currency Exchange Forward Contracts

The notional amount of our outstanding U.S. dollar equivalent foreign currency exchange contracts consisted of the following (in millions):

	April 24, 2015		April 25, 2014
Cash Flow Hedges
Forward contracts purchased	$	93.6	$	122.6
Balance Sheet Contracts
Forward contracts sold	$	160.2	$	155.5
Forward contracts purchased	$	231.2	$	389.9

Schedule of Derivative Instruments Not Designated as Hedging Instruments

The effect of derivative instruments not designated as hedging instruments recognized in other income (expense), net on our consolidated statements of operations was as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
	Gain Recognized into Income
Foreign currency exchange contracts	$	14.1	$	0.8	$	6.5

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Goodwill and Purchased Intangible Assets, Net - Additional Information (Detail) (USD $)	12 Months Ended
	Apr. 24, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill impairment	$ 0

XML

Other Income Expense (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Nonoperating Income Expense [Abstract]
Interest income	$ 36.6	$ 34.9	$ 42.2
Interest expense	(42.0)	(36.1)	(91.7)
Other income, net	1.7	7.6	8.3
Total other income (expense), net	$ (3.7)	$ 6.4	$ (41.2)

XML

Segment Geographic and Significant Customer Information - Schedule of Net Accounts Receivable from Significant Customers (Detail) (Accounts Receivable, Credit Concentration Risk)	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014
Arrow Electronics, Inc.
Segment Reporting Information [Line Items]
Percentage of net accounts receivable	14.00%	14.00%
Avnet, Inc.
Segment Reporting Information [Line Items]
Percentage of net accounts receivable	16.00%	16.00%

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Balance Sheet Details - Depreciation and Amortization Expense (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Depreciation, Depletion and Amortization [Abstract]
Depreciation and amortization expense	$ 243.5	$ 275.0	$ 258.8

XML

Business Combinations - Additional Information (Detail) (Fiscal 2015 Acquisitions, USD $) In Millions, unless otherwise specified	0 Months Ended
	Oct. 27, 2014
SteelStore Product Line
Business Acquisition [Line Items]
Business acquisition cash paid	$ 79.1
Privately Held Software Developer
Business Acquisition [Line Items]
Business acquisition cash paid	$ 5.5

XML

Description of Business and Significant Accounting Policies

12 Months Ended

Apr. 24, 2015

Accounting Policies [Abstract]

Description of Business and Significant Accounting Policies

1. Description of Business and Significant Accounting Policies

Description of Business —NetApp, Inc. (we, us, or the Company) provide software, systems and services to manage and store computer data. We enable enterprises, service providers, governmental organizations, and original equipment manufacturers to envision, deploy and evolve their information technology environments and to reduce costs and risk while driving growth and success for their organizations.

Fiscal Year — Our fiscal year is reported on a 52- or 53-week year that ends on the last Friday in April. Our fiscal years 2015, 2014 and 2013 ended on April 24, 2015, April 25, 2014 and April 26, 2013, respectively, and were each 52-week years. An additional week is included in the first fiscal quarter approximately every six years to realign fiscal months with calendar months. Fiscal year 2016 will span 53 weeks, with a 14th week included in the first quarter of fiscal 2016. Unless otherwise stated, references to particular years, quarters, months and periods refer to the Company’s fiscal years ended on the last Friday of April and the associated quarters, months and periods of those fiscal years.

Principles of Consolidation — The consolidated financial statements include the Company and its subsidiaries. Intercompany accounts and transactions are eliminated in consolidation.

Accounting Change — In our fourth quarter of fiscal 2015, we adopted an Accounting Standards Update (ASU) that simplifies the presentation of debt issuance costs by requiring them to be presented as a direct deduction from the carrying amount of the related debt liability, rather than as a deferred charge, consistent with debt discounts. The new guidance was applied on a retrospective basis to April 25, 2014. The amended presentation of debt issuance costs resulted in a $7.5 million and $5.4 million reduction of each of other non-current assets and long-term debt in the consolidated balance sheets as of April 24, 2015 and April 25, 2014, respectively.

Use of Estimates — The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Such estimates include, but are not limited to, revenue recognition, reserves and allowances; inventory valuation and purchase order accruals; valuation of goodwill and intangibles; restructuring reserves; product warranties; employee benefit accruals; stock-based compensation; loss contingencies; investment impairments; income taxes and fair value measurements. Actual results could differ materially from those estimates.

Cash Equivalents — We consider all highly liquid debt investments with original maturities of three months or less at the time of purchase to be cash equivalents.

Available-for-Sale Investments — We classify our investments in debt securities as available-for-sale investments. Debt securities primarily consist of corporate bonds, U.S. Treasury and government debt securities and certificates of deposit. These available-for-sale investments are primarily held in the custody of a major financial institution. A specific identification method is used to determine the cost basis of debt securities sold. These investments are recorded in the consolidated balance sheets at fair value.

Unrealized gains and temporary losses, net of related taxes, are included in accumulated other comprehensive income (loss) (AOCI). Upon realization, those amounts are reclassified from AOCI to earnings. The amortization of premiums and discounts on the investments are included in our results of operations. Realized gains and losses on our available-for-sale investments are calculated based on the specific identification method.

We classify our investments as current or noncurrent based on the nature of the investments and their availability for use in current operations.

Other-than-Temporary Impairments on Investments — All of our available-for-sale investments are subject to periodic impairment review. When the fair value of a debt security is less than its amortized cost, it is deemed impaired, and we assess whether the impairment is other-than-temporary. An impairment is considered other-than-temporary if (i) we have the intent to sell the security, (ii) it is more likely than not that we will be required to sell the security before recovery of the entire amortized cost basis, or (iii) we do not expect to recover the entire amortized cost basis of the security. If impairment is considered other-than-temporary based on condition (i) or (ii) described above, the entire difference between the amortized cost and the fair value of the debt security is recognized in the results of operations. If an impairment is considered other-than-temporary based on condition (iii) described above, the amount representing credit losses (defined as the difference between the present value of the cash flows expected to be collected and the amortized cost basis of the debt security) is recognized in earnings, and the amount relating to all other factors is recognized in other comprehensive income (OCI).

For our auction rate securities (ARSs), impairment was determined based on fair value and marketability of these investments. The valuation models used to estimate fair value include numerous assumptions such as assessments of the underlying structure of each security, expected cash flows, discount rates, trading activity in the secondary market for similar securities, credit ratings, workout periods, and overall capital market liquidity.

Inventories — Inventories are stated at the lower of cost or market, which approximates actual cost on a first-in, first-out basis. We write down excess and obsolete inventory based on the difference between the cost of inventory and the estimated net realizable value based upon assumptions about future demand forecasts and market conditions. At the point of a loss recognition, a new, lower cost basis for that inventory is established, and subsequent changes in facts or circumstances do not result in the restoration or increase in that newly established basis. In addition, we record a liability for firm, non-cancelable and unconditional purchase commitments with contract manufacturers and suppliers for quantities in excess of our future demand forecasts consistent with our valuation of excess and obsolete inventory.

Property and Equipment — Property and equipment are recorded at cost.

Depreciation and amortization is computed using the straight-line method, generally over the following periods:

	Depreciation Life
Buildings and improvements	10 to 40 years
Furniture and fixtures	5 years
Computer, production, engineering and other equipment	2 to 3 years
Computer software	3 to 5 years
Leasehold improvements	Shorter of remaining lease term or useful life

Construction in progress will be depreciated over the estimated useful lives of the respective assets when they are ready for use. We capitalize interest on significant facility assets under construction and on significant software development projects.

Software Development Costs — The costs for the development of new software products and substantial enhancements to existing software products are expensed as incurred until technological feasibility has been established, at which time any additional costs would be capitalized in accordance with the accounting guidance for software. Because our current process for developing software is essentially completed concurrently with the establishment of technological feasibility, which occurs upon the completion of a working model, no costs have been capitalized for any of the periods presented.

Internal-Use Software Development Costs — We capitalize qualifying costs, which are incurred during the application development stage, for computer software developed or obtained for internal-use and amortize them over the software’s estimated useful life.

Business Combinations — We recognize identifiable assets acquired and liabilities assumed at their acquisition date fair values. Goodwill as of the acquisition date is measured as the excess of consideration transferred over the net of the acquisition date fair values of the assets acquired and the liabilities assumed. While we use our best estimates and assumptions as a part of the purchase price allocation process to accurately value assets acquired and liabilities assumed at the acquisition date, our estimates are inherently uncertain and subject to refinement. As a result, during the measurement period, which may be up to one year from the acquisition date, we record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill to the extent that we identify adjustments to the preliminary purchase price allocation. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to our consolidated statements of operations.

Goodwill and Purchased Intangible Assets — Goodwill is recorded when the consideration paid for an acquisition exceeds the fair value of net tangible and intangible assets acquired. Purchased intangible assets are amortized on a straight-line basis over their economic lives of three to six years for developed technology, two to eight years for customer contracts/relationships, two to three years for covenants not to compete and two to seven years for trademarks and trade names as we believe this method most closely reflects the pattern in which the economic benefits of the assets will be consumed.

The carrying value of goodwill is tested for impairment on an annual basis in the fourth quarter of our fiscal year, or more frequently if we believe indicators of impairment exist. Triggering events for impairment reviews may be indicators such as adverse industry or economic trends, restructuring actions, lower projections of profitability, or a sustained decline in our market capitalization. The performance of the test involves a two-step process. The first step requires comparing the fair value of each of our reporting units to its net book value, including goodwill. We have three reporting units, the fair values of which are determined based on an allocation of our entity level market capitalization, as determined through quoted market prices. A potential impairment exists if the fair value of the reporting unit is lower than its net book value. The second step of the process is only performed if a potential impairment exists, and it involves determining the difference between the fair value of the reporting unit’s net assets other than goodwill and the fair value of the reporting unit. If that difference is less than the net book value of goodwill, an impairment exists and is recorded. We have not been required to perform this second step of the process because the fair values of each of our reporting units have exceeded their respective net book values in fiscal 2015, 2014 and 2013.

Impairment of Long-Lived Assets — We review the carrying values of long-lived assets whenever events and circumstances, such as reductions in demand, lower projections of profitability, significant changes in the manner of our use of acquired assets, or significant negative industry or economic trends, indicate that the net book value of an asset may not be recovered through expected future cash flows from its use and eventual disposition. If this review indicates that there is an impairment, the impaired asset is written down to its fair value, which is typically calculated using: (i) quoted market prices and/or (ii) expected future cash flows utilizing a discount rate. Our estimates regarding future anticipated net revenue and cash flows, the remaining economic life of the products and technologies, or both, may differ from those used to assess the recoverability of assets. In that event, impairment charges or shortened useful lives of certain long-lived assets may be required, resulting in charges to our consolidated statements of operations when such determinations are made.

Derivative Instruments — Our derivative instruments consist of foreign currency exchange contracts as described below:

Balance Sheet Hedges — We utilize foreign currency exchange forward and option contracts to hedge against the short-term impact of foreign currency exchange rate fluctuations related to certain foreign currency denominated monetary assets and liabilities, primarily intercompany receivables and payables. These derivative instruments are not designated as hedging instruments and do not subject us to material balance sheet risk due to exchange rate movements because the gains and losses on these contracts are intended to offset the gains and losses in the underlying foreign currency denominated monetary assets and liabilities being hedged and the net amount is included in earnings.

Cash Flow Hedges — We use foreign currency exchange forward contracts to hedge foreign currency exchange exposures related to forecasted sales transactions denominated in certain foreign currencies. These derivative instruments are designated and qualify as cash flow hedges and in general, closely match the underlying forecasted transactions in duration. The contracts are carried in the consolidated balance sheets at fair value, and the effective portion of the contracts’ gains and losses resulting from changes in fair value is recorded in AOCI until the forecasted transaction is recognized in the consolidated statements of operations. When the forecasted transactions occur, we reclassify the related gains or losses on the cash flow hedges into net revenues. If the underlying forecasted transactions do not occur, or it becomes probable that they will not occur within the defined hedge period, the gains or losses on the related cash flow hedges are reclassified from AOCI and recognized immediately in earnings. We measure the effectiveness of hedges of forecasted transactions on a monthly basis by comparing the fair values of the designated foreign currency exchange forward purchase contracts with the fair values of the forecasted transactions. Any ineffective portion of the derivative hedging gain or loss, as well as changes in the fair value of the derivative’s time value (which are excluded from the assessment of hedge effectiveness), are recognized in earnings.

Factors that could have an impact on the effectiveness of our hedging programs include the accuracy of forecasts and the volatility of foreign currency markets. These programs reduce, but do not entirely eliminate, the impact of currency exchange movements. Currently, we do not enter into any foreign currency exchange forward contracts to hedge exposures related to firm commitments or nonmarketable investments. Cash flows from our derivative programs are included under operating activities in the consolidated statements of cash flows.

Revenue Recognition — We recognize revenue when:

· Persuasive evidence of an arrangement exists. Customarily we have a purchase order and/or contract prior to recognizing revenue on an arrangement from our end users, customers, value-added resellers or distributors.

· Delivery has occurred. Our product is physically delivered to our customers. We typically do not allow for restocking rights with any of our value-added resellers or distributors. Products shipped with acceptance criteria or return rights are not recognized as revenue until all criteria are achieved. We do not recognize revenue if undelivered products or services exist that are essential to the functionality of the delivered product in an arrangement.

· The fee is fixed or determinable. Arrangements with payment terms extending beyond our standard terms, conditions and practices are not considered to be fixed or determinable. Revenue from such arrangements is recognized at the earlier of customer payment or when the fees become due and payable. We typically do not allow for price-protection rights with any of our value-added resellers or distributors.

· Collection is reasonably assured. If there is considerable doubt surrounding the creditworthiness of a customer at the outset of an arrangement, the associated revenue is deferred and recognized upon cash receipt.

The hardware systems and software components essential to the functionality of the hardware systems are considered non-software deliverables and therefore are not subject to industry-specific software revenue recognition guidance.

Our product revenues also include revenues from the sale of non-essential software products. Non-essential software sales generally include a perpetual license to our software. Non-essential software sales are subject to the industry-specific software revenue recognition guidance.

Our multiple element arrangements may include our systems, software maintenance, hardware maintenance and other services. Software maintenance contracts entitle our customers to receive unspecified product upgrades and enhancements on a when-and-if-available basis, and patch releases. Hardware maintenance services include contracts for extended warranty, technical support and minimum response times. Other services include professional services and customer education and training services. Revenues from software maintenance and hardware maintenance services are recognized ratably over the contractual term, generally from one to five years. We also offer extended warranty contracts (which extend our standard parts warranty and may include premium hardware maintenance) at the end of the original warranty term; revenues from these contracts are recognized ratably over their respective contract term. We sell professional services either on a time and materials basis or under fixed price projects; we recognize revenue for these services as they are performed.

For multiple element arrangements, we allocate revenue to the software deliverables and the non-software deliverables as a group based on the relative selling prices of all of the deliverables in the arrangement. The selling price for each element is based upon the following selling price hierarchy: vendor specific objective evidence of selling price (VSOE) if available, third party evidence (TPE) if VSOE is not available, or estimated selling price (ESP) if neither VSOE nor TPE are available. ESP is generally evidenced by a majority of historical transactions falling within a reasonable price range. We also consider multiple factors, including, but not limited to, cost of products, gross margin objectives, historical pricing practices, type of customer and distribution channels. For our non-software deliverables, we generally allocate the arrangement consideration based on the relative selling price of the deliverables using ESP. For our software maintenance services, we generally use VSOE. When we are unable to establish VSOE for our software maintenance services, we use ESP in our allocation of arrangement consideration.

VSOE is based upon the normal pricing and discounting practices for those services when sold separately. VSOE is generally evidenced by a substantial majority of historical stand-alone transactions falling within a reasonably narrow range. In addition, we consider major service type, customer type, and other variables in determining VSOE.

When VSOE cannot be established, we attempt to establish the selling price of each element based on third party evidence of selling price (TPE). Generally, we are not able to determine TPE because our go-to-market strategy differs from that of our peers and our offerings contain a significant level of differentiation such that the comparable pricing of products with similar functionality cannot be obtained.

We regularly review VSOE, TPE, and ESP and maintain internal controls over the establishment and updates of these estimates.

For our software deliverables, we use the residual method to recognize revenue when an arrangement includes one or more elements to be delivered at a future date and VSOE of all undelivered elements exists. Typically, only software maintenance, hardware maintenance and/or other services remain undelivered after the product is delivered. Under the residual method, the fair value of the undelivered elements is deferred and the remaining portion of the consideration is recognized as product revenues for delivered elements. If evidence of the fair value of one or more undelivered elements does not exist, all revenue is generally deferred until the earlier of when delivery of those elements occurs or when fair value can be established. In instances where the only undelivered element without fair value is software maintenance, the entire arrangement is recognized ratably over the maintenance period.

We record reductions to revenue for estimated sales returns at the time of shipment. Sales returns are estimated based on historical sales returns, current trends, and our expectations regarding future experience. We monitor and analyze the accuracy of sales returns estimates by reviewing actual returns and adjust them for future expectations. Additionally, distributors and retail partners participate in various cooperative marketing and other programs, and we record estimated accruals and allowances for these programs. We accrue for these programs based on contractual terms and historical experience. Sales and value added taxes collected from customers and remitted to governmental authorities are presented on a net basis in the accompanying consolidated statements of operations.

Product Warranties — Estimated future hardware and software warranty costs are recorded as a cost of product revenues at the time of product shipment, based on historical and projected warranty claim rates, historical and projected cost-per-claim and knowledge of specific product failures that are outside our typical experience. Factors that affect our warranty liability include the number of installed units subject to warranty protection, product failure rates, estimated material costs, estimated distribution costs and estimated labor costs. We assess the adequacy of our warranty accrual each quarter and adjust the amount as considered necessary.

Foreign Currency Translation — For international subsidiaries whose functional currency is the local currency, gains and losses resulting from translation of these foreign currency financial statements into U.S. dollars are recorded in AOCI. For subsidiaries where the functional currency is the U.S. dollar, gains and losses resulting from the process of remeasuring foreign currency financial statements into U.S. dollars are included in other income (expense), net.

Benefit Plans — We have a postretirement health care plan and various international defined benefit plans for certain of our employees. We record actuarial gains and losses within AOCI and amortize net gains or losses in excess of 10 percent of the greater of the market value of plan assets or the plans' projected benefit obligation on a straight-line basis over the remaining estimated service life of plan participants. The measurement date for all defined benefit plans is our fiscal year end.

Stock-Based Compensation — We measure and recognize stock-based compensation for all stock-based awards, including employee stock options, restricted stock units (RSUs) and rights to purchase shares under our employee stock purchase plan (ESPP), based on their estimated fair value, and recognize the costs in our financial statements using the single option straight-line approach over the requisite service period for the entire award.

The fair value of employee RSUs is equal to the market value of our common stock on the grant date of the award, less the present value of expected dividends during the vesting period, discounted at a risk-free interest rate. Calculating the fair value of employee stock options and the rights to purchase shares under the ESPP requires estimates and significant judgment. The fair value of each award is estimated on the grant date using the Black-Scholes option pricing model, and is not remeasured as a result of subsequent stock price fluctuations. Option-pricing models require the input of highly subjective assumptions, including the expected term of awards and the stock price volatility of the underlying stock of such awards. Our expected term assumption is based primarily on historical exercise and post-vesting forfeiture experience. Effective fiscal 2013, our stock price volatility assumption is based on a combination of our historical and implied volatility, whereas prior to fiscal 2013, we solely used implied volatility.

In addition, the Black-Scholes option pricing model requires risk-free interest rates and expected dividends. The risk-free interest rates are based upon United States Treasury bills with equivalent expected terms, and the expected dividends are based on our history and expected dividend payouts.

We estimate the number of stock-based awards that will be forfeited due to employee turnover. Our forfeiture assumption is primarily based on historical experience.

In the event of a modification of stock-based awards, if the requisite service period of the modified award is longer than the requisite service period of the original award and, both before and after the modification, it is probable that the awards will vest, we recognize the unrecognized compensation cost remaining from the original award plus the incremental compensation cost, if any, as a result of a modification in its entirety over the remaining portion of the requisite service period of the modified award.

Income Taxes — Deferred income tax assets and liabilities are provided for temporary differences that will result in tax deductions or income in future periods, as well as the future benefit of tax credit carryforwards. A valuation allowance reduces tax assets to their estimated realizable value. Significant judgment is required in determining any valuation allowance recorded against deferred tax assets. In assessing the need for a valuation allowance, we consider all available evidence, including past operating results, estimates of future taxable income, and the feasibility of tax planning strategies. In the event that we change our determination as to the amount of deferred tax assets that can be realized, we adjust our valuation allowance with a corresponding impact to the provision for income taxes in the period in which such determination is made.

The accounting guidance for income taxes prescribes a comprehensive model for how a company should recognize, measure, present, and disclose in its financial statements uncertain tax positions that we have taken or expect to take on a tax return (including a decision whether to file or not to file a return in a particular jurisdiction). We recognize the tax liability for uncertain income tax positions on the income tax return based on the two-step process prescribed in the interpretation. The first step is to determine whether it is more likely than not that each income tax position would be sustained upon audit. The second step is to estimate and measure the tax benefit as the amount that has a greater than 50% likelihood of being realized upon ultimate settlement with the tax authority. Estimating these amounts requires us to determine the probability of various possible outcomes. We evaluate these uncertain tax positions on a quarterly basis. The Company recognizes interest and penalties related to unrecognized tax benefits within the income tax expense line in the accompanying consolidated statement of operations.

Determining the liability for uncertain tax positions requires us to make significant estimates and judgments as to whether, and the extent to which, additional taxes may be due based on potential tax audit issues in the U.S. and other tax jurisdictions throughout the world. Our estimates are based on the outcomes of previous audits, as well as the precedents set in cases in which others have taken similar tax positions to those taken by us. If we later determine that our exposure is lower or that the liability is not sufficient to cover our revised expectations, we adjust the liability and effect a related change in our tax provision during the period in which we make such a determination.

Tax attributes related to the exercise of employee stock options are not realized until they result in a reduction of taxes payable. We do not include unrealized stock option attributes as components of our gross deferred tax assets and corresponding valuation allowance disclosures.

Net Income per Share — Basic net income per share is computed by dividing income available to common stockholders by the weighted-average number of common shares outstanding. Diluted net income per share is computed giving effect to all dilutive potential shares that were outstanding during the period. Potential dilutive common shares can consist of outstanding stock options, shares to be purchased under our employee stock purchase plan and unvested RSUs, as well as outstanding warrants and shares to be issued upon the conversion of convertible notes.

Treasury Stock — We account for treasury stock under the cost method. Upon the retirement of treasury stock, we allocate the value of treasury shares between common stock, additional paid-in capital and retained earnings.

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Employee Benefits and Deferred Compensation - Schedule of Amounts Recognized in Balance Sheet (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Compensation And Retirement Disclosure [Abstract]
Other long-term liabilities	$ 40.5	$ 27.0
AOCI	$ (12.4)	$ (4.8)

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Balance Sheet Details - Computer Software Amortization Expense (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Property Plant And Equipment [Abstract]
Computer software amortization expense	$ 84.6	$ 74.4	$ 76.7

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Commitments and Contingencies (Tables)

12 Months Ended

Apr. 24, 2015

Commitments And Contingencies Disclosure [Abstract]

Future Annual Minimum Lease Payments Under All Non-cancelable Operating Leases

Future annual minimum lease payments under all non-cancelable operating leases with an initial term in excess of one year as of April 24, 2015 are as follows (in millions):

		2016		2017		2018		2019		2020	Thereafter		Total
Operating lease commitments	$	61.9	$	44.0	$	29.6	$	21.0	$	17.3	$	31.7	$	205.5

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Statements of Cash Flows Additional Information (Tables)

12 Months Ended

Apr. 24, 2015

Supplemental Cash Flow Elements [Abstract]

Supplemental Cash Flows and Non-Cash Investing Activities

Non-cash investing activities and supplemental cash flow information are as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Non-cash Investing Activities:
Reclassification of equity component of Convertible Notes	$	—	$	—	$	62.6
Capital expenditures incurred but not paid	$	12.1	$	18.0	$	20.2
Acquisition of software through long-term financing	$	12.3	$	11.4	$	0.8
Supplemental Cash Flow Information:
Income taxes paid, net of refunds	$	97.4	$	58.1	$	46.7
Interest paid	$	32.7	$	35.2	$	22.8

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Description of Business and Significant Accounting Policies (Tables)

12 Months Ended

Apr. 24, 2015

Accounting Policies [Abstract]

Property and Equipment Depreciation Life

Depreciation and amortization is computed using the straight-line method, generally over the following periods:

	Depreciation Life
Buildings and improvements	10 to 40 years
Furniture and fixtures	5 years
Computer, production, engineering and other equipment	2 to 3 years
Computer software	3 to 5 years
Leasehold improvements	Shorter of remaining lease term or useful life

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Income Taxes - Net Deferred Tax Assets (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Components of Deferred Tax Assets and Liabilities [Abstract]
Current deferred tax assets, net	$ 251.7	$ 269.3
Non-current deferred tax assets, net	$ 255.9	$ 245.0

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Balance Sheet Details - Cash and Cash Equivalents (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013	Apr. 27, 2012
Cash And Cash Equivalents [Abstract]
Cash	$ 1,666.3	$ 2,174.0
Cash equivalents	255.2	117.0
Cash and cash equivalents	$ 1,921.5	$ 2,291.0	$ 3,277.1	$ 1,549.8

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Description of Business and Significant Accounting Policies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended	3 Months Ended
	Apr. 24, 2015	Apr. 24, 2015	Apr. 25, 2014
Minimum | Software maintenance and Hardware maintenance services
Accounting Policies [Abstract]
Maintenance contractual term	1 year
Minimum | Developed Technology
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	3 years
Minimum | Customer Contracts/Relationships
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	2 years
Minimum | Covenants not to Compete
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	2 years
Minimum | Trademarks and Trade Names
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	2 years
Maximum | Software maintenance and Hardware maintenance services
Accounting Policies [Abstract]
Maintenance contractual term	5 years
Maximum | Developed Technology
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	6 years
Maximum | Customer Contracts/Relationships
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	8 years
Maximum | Covenants not to Compete
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	3 years
Maximum | Trademarks and Trade Names
Accounting Policies [Abstract]
Finite-Lived Intangible Asset, Useful Life	7 years
Amended
Accounting Policies [Abstract]
Debt issuance costs		$ 7.5	$ 5.4

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Business Combinations (Tables)

12 Months Ended

Apr. 24, 2015

Fiscal 2015 Acquisitions

Business Acquisition [Line Items]

Fair Value of Assets Acquired and Liabilities Assumed

The preliminary fair values of assets acquired and liabilities assumed as of the closing date are summarized as follows (in millions):

Prepaid expenses and other current assets	$	2.7
Finite-lived intangible assets		31.8
Goodwill		39.3
Deferred income taxes		10.8
Other non-current assets		1.1
Total assets acquired		85.7
Deferred revenue		(1.1	)
Total purchase price	$	84.6

Fiscal 2013 Acquisitions

Business Acquisition [Line Items]

Fair Value of Assets Acquired and Liabilities Assumed

The allocation of the purchase consideration for business combinations completed in fiscal 2013 is summarized as follows (in millions):

Net liabilities assumed	$	(5.1	)
Finite-lived intangible assets		30.3
Goodwill		82.9
Total purchase price	$	108.1

Consideration Related to Fiscal 2013 Acquisitions

Consideration related to our fiscal 2013 acquisitions consisted of the following (in millions):

Cash	$	106.9
Equity		1.2
Total purchase price	$	108.1

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Goodwill and Purchased Intangible Assets, Net (Tables)

12 Months Ended

Apr. 24, 2015

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Goodwill Activity

Goodwill activity is summarized as follows (in millions):

Balance as of April 26, 2013	$	988.1
Goodwill acquired		—
Balance as of April 25, 2014		988.1
Goodwill acquired		39.3
Balance as of April 24, 2015	$	1,027.4

Purchased Intangible Assets, Net

Purchased intangible assets, net are summarized below (in millions):

	April 24, 2015							April 25, 2014
	Gross		Accumulated			Net		Gross		Accumulated			Net
	Assets		Amortization			Assets		Assets		Amortization			Assets
Developed technology	$	312.4	$	(225.2	)	$	87.2	$	283.0	$	(162.6	)	$	120.4
Customer contracts/relationships		5.0		(2.7	)		2.3		9.6		(9.0	)		0.6
Other purchased intangibles		2.9		(2.9	)		—		4.5		(4.0	)		0.5
Total purchased intangible assets	$	320.3	$	(230.8	)	$	89.5	$	297.1	$	(175.6	)	$	121.5

Amortization Expense for Purchased Intangible Assets

Amortization expense for purchased intangible assets is summarized below (in millions):

	Year Ended						Statement of
	April 24, 2015		April 25, 2014		April 26, 2013		Operations Classifications
Developed technology	$	62.6	$	57.1	$	55.9	Cost of revenues
Customer contracts/relationships		0.7		1.0		25.2	Operating expenses
Other purchased intangibles		0.4		1.0		4.7	Operating expenses
Total	$	63.7	$	59.1	$	85.8

Future Amortization Expense Related to Purchased Intangible Assets

As of April 24, 2015, future amortization expense related to purchased intangible assets is as follows (in millions):

Fiscal Year	Amount
2016	$	58.4
2017		13.9
2018		9.4
2019		5.2
2020		2.6
Total	$	89.5

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) (USD $)	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014
Statement Of Stockholders Equity [Abstract]
Cash dividends declared, per common share	$ 0.66	$ 0.60

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Balance Sheet Details (Tables)

12 Months Ended

Apr. 24, 2015

Statement Of Financial Position [Abstract]

Cash and Cash Equivalents

Cash and cash equivalents (in millions):

	April 24, 2015		April 25, 2014
Cash	$	1,666.3	$	2,174.0
Cash equivalents		255.2		117.0
Cash and cash equivalents	$	1,921.5	$	2,291.0

Inventories

Inventories (in millions):

	April 24, 2015		April 25, 2014
Purchased components	$	36.2	$	17.6
Finished goods		110.3		104.8
Inventories	$	146.5	$	122.4

Other Current Assets

Other current assets (in millions):

	April 24, 2015		April 25, 2014
Prepaid expenses and other current assets	$	268.3	$	219.4
Deferred tax assets		253.5		270.3
Other current assets	$	521.8	$	489.7

Property and Equipment, Net

Property and equipment, net (in millions):

	April 24, 2015			April 25, 2014
Land	$	265.5		$	265.7
Buildings and improvements		607.0			541.7
Leasehold improvements		106.6			102.9
Computer, production, engineering and other equipment		753.7			753.8
Computer software		371.9			369.1
Furniture and fixtures		85.4			86.4
Construction-in-progress		33.0			72.9
		2,223.1			2,192.5
Accumulated depreciation and amortization		(1,193.2	)		(1,083.7	)
Property and equipment, net	$	1,029.9		$	1,108.8

Computer Software, Net Book Value

The net book value of computer software, which includes capitalized internal-use software development costs, is summarized below (in millions):

	April 24, 2015		April 25, 2014
Computer software	$	58.5	$	103.5

Depreciation and Amortization Expense

Depreciation and amortization expense related to property and equipment, net is summarized below (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Depreciation and amortization expense	$	243.5	$	275.0	$	258.8

Computer Software, Amortization Expense

Included in depreciation and amortization expense above is amortization related to computer software, as summarized below (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Computer software amortization expense	$	84.6	$	74.4	$	76.7

Other Non-Current Assets

Other non-current assets (in millions):

	April 24, 2015		April 25, 2014
Auction rate securities	$	—	$	36.0
Deferred tax assets		255.9		245.0
Other assets		225.1		243.1
Other non-current assets	$	481.0	$	524.1

Accrued Expenses

Accrued expenses (in millions):

	April 24, 2015		April 25, 2014
Accrued compensation and benefits	$	358.8	$	407.8
Product warranty liability		57.8		73.0
Other current liabilities		284.8		313.0
Accrued expenses	$	701.4	$	793.8

Product Warranty Liabilities

The following tables summarize the activity related to product warranty liabilities and their balances as reported in our consolidated balance sheets (in millions):

	Year Ended
	April 24, 2015			April 25, 2014
Balance at beginning of year	$	110.0		$	117.2
Expense accrued during the year		35.2			70.2
Warranty costs incurred		(59.5	)		(77.4	)
Balance at end of year	$	85.7		$	110.0

	April 24, 2015		April 25, 2014
Accrued expenses	$	57.8	$	73.0
Other long-term liabilities		27.9		37.0
Total warranty liabilities	$	85.7	$	110.0

Deferred Revenue

Short-term and long-term deferred revenue (in millions):

	April 24, 2015		April 25, 2014
Product	$	17.4	$	23.4
Services		3,179.8		3,076.8
Total	$	3,197.2	$	3,100.2
Reported as:
Short-term	$	1,724.2	$	1,653.8
Long-term		1,473.0		1,446.4
Total	$	3,197.2	$	3,100.2

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Stockholders' Equity - Number and Value of Shares Netted for Employee Taxes (Detail) (Restricted Stock Units, USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares withheld for taxes	1.5	1.5	1.3
Fair value of shares withheld	$ 56.8	$ 57.7	$ 40.9

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Employee Benefits and Deferred Compensation - Deferred Compensation Plans (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Compensation And Retirement Disclosure [Abstract]
Deferred compensation plan assets	$ 32.2	$ 32.7
Accrued expenses	2.8	6.4
Other long-term liabilities	$ 29.4	$ 26.3

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Net Income per Share (Tables)

12 Months Ended

Apr. 24, 2015

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Income Per Share

The following is a calculation of basic and diluted net income per share (in millions, except per share amounts):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Numerator:
Net income	$	559.9	$	637.5	$	505.3
Denominator:
Shares used in basic computation		315.5		340.3		361.5
Dilutive impact of employee equity award plans		5.2		6.9		5.4
Dilutive impact of assumed conversion of Convertible Notes		—		0.5		1.1
Dilutive impact of warrants		—		0.2		—
Shares used in diluted computation		320.7		347.9		368.0
Net Income per Share:
Basic	$	1.77	$	1.87	$	1.40
Diluted	$	1.75	$	1.83	$	1.37

Anti-Dilutive Shares Excluded from the Calculation of Net Income Per Share

The following potential weighted-average shares of common stock have been excluded from the diluted net income per share calculations, as their effect would have been anti-dilutive (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Employee equity award plans		7.8		6.4		15.1

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Goodwill and Purchased Intangible Assets, Net - Purchased Intangible Assets, Net (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	$ 320.3	$ 297.1
Accumulated Amortization	(230.8)	(175.6)
Net Assets	89.5	121.5
Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	312.4	283.0
Accumulated Amortization	(225.2)	(162.6)
Net Assets	87.2	120.4
Customer Contracts/Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	5.0	9.6
Accumulated Amortization	(2.7)	(9.0)
Net Assets	2.3	0.6
Other Purchased Intangibles
Acquired Finite Lived Intangible Assets [Line Items]
Gross Assets	2.9	4.5
Accumulated Amortization	(2.9)	(4.0)
Net Assets	$ 0	$ 0.5

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Financial Instruments and Fair Value Measurements - Quantitative Information About Level Three Fair Value Measurements (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014
Fair Value Inputs, Assets, Quantitative Information [Line Items]
ARSs Fair Value	5,326.2	$ 5,003.3
Significant Unobservable Inputs (Level 3)
Fair Value Inputs, Assets, Quantitative Information [Line Items]
ARSs Fair Value		0
Significant Unobservable Inputs (Level 3) | Auction Rate Securities
Fair Value Inputs, Assets, Quantitative Information [Line Items]
ARSs Fair Value		$ 36.0
Discounted Cash Flow | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Time-to-economic maturity	6 years 8 months 12 days
Illiquidity premium	1.10%
Coupon rate	1.10%
Discounted Cash Flow | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Time-to-economic maturity	10 years
Illiquidity premium	2.80%
Coupon rate	2.70%
Discounted Cash Flow | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Time-to-economic maturity	8 years 2 months 12 days
Illiquidity premium	1.80%
Coupon rate	1.80%
Market Comparable Securities | Minimum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	1.00%
Market Comparable Securities | Maximum
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	5.00%
Market Comparable Securities | Weighted Average
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Discount rate	2.40%

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CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Current assets:
Cash and cash equivalents	$ 1,921.5	$ 2,291.0
Short-term investments	3,404.7	2,712.3
Accounts receivable	778.9	855.9
Inventories	146.5	122.4
Other current assets	521.8	489.7
Total current assets	6,773.4	6,471.3
Property and equipment, net	1,029.9	1,108.8
Goodwill	1,027.4	988.1
Other intangible assets, net	89.5	121.5
Other non-current assets	481.0	524.1
Total assets	9,401.2	9,213.8
Current liabilities:
Accounts payable	283.4	247.0
Accrued expenses	701.4	793.8
Short-term deferred revenue	1,724.2	1,653.8
Total current liabilities	2,709.0	2,694.6
Long-term debt	1,487.5	990.1
Other long-term liabilities	317.6	296.2
Long-term deferred revenue	1,473.0	1,446.4
Total liabilities	5,987.1	5,427.3
Commitments and contingencies (Note 18)
Stockholders' equity:
Preferred stock, $0.001 par value, 5.0 shares authorized; no shares issued or outstanding as of April 24, 2015 or April 25, 2014	0	0
Common stock, $0.001 par value, (306.1 and 324.5 shares issued and outstanding as of April 24, 2015 and April 25, 2014, respectively)	0.3	0.3
Additional paid-in capital	3,384.3	3,776.0
Retained earnings	53.2	1.1
Accumulated other comprehensive income (loss)	(23.7)	9.1
Total stockholders' equity	3,414.1	3,786.5
Total liabilities and stockholders' equity	$ 9,401.2	$ 9,213.8

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Description of Business and Significant Accounting Policies - Property and Equipment Depreciation Life (Detail)	12 Months Ended
	Apr. 24, 2015
Buildings and improvements | Minimum
Property Plant And Equipment [Line Items]
Depreciation life (years)	10 years
Buildings and improvements | Maximum
Property Plant And Equipment [Line Items]
Depreciation life (years)	40 years
Furniture and fixtures
Property Plant And Equipment [Line Items]
Depreciation life (years)	5 years
Computer, production, engineering and other equipment | Minimum
Property Plant And Equipment [Line Items]
Depreciation life (years)	2 years
Computer, production, engineering and other equipment | Maximum
Property Plant And Equipment [Line Items]
Depreciation life (years)	3 years
Computer software | Minimum
Property Plant And Equipment [Line Items]
Depreciation life (years)	3 years
Computer software | Maximum
Property Plant And Equipment [Line Items]
Depreciation life (years)	5 years
Leasehold improvements
Property Plant And Equipment [Line Items]
Depreciation life (years)	Shorter of remaining lease term or useful life

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Income Taxes - Income Before Income Taxes (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Income Tax Disclosure [Abstract]
Domestic	$ 252.9	$ 120.5	$ (63.8)
Foreign	459.9	620.2	630.4
Income before income taxes	$ 712.8	$ 740.7	$ 566.6

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Employee Benefits and Deferred Compensation - Amount Contributed under 401(k) Plans (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Compensation And Retirement Disclosure [Abstract]
401(k) matching contributions	$ 16.3	$ 19.6	$ 19.9

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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Cash flows from operating activities:
Net income	$ 559.9	$ 637.5	$ 505.3
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	307.2	334.1	344.6
Stock-based compensation	259.3	273.0	276.6
Accretion of discount and issuance costs on long-term debt	2.7	9.7	60.2
Deferred income taxes	(2.7)	(76.0)	(76.6)
Excess tax benefit from stock-based compensation	(55.2)	(52.5)	(72.9)
Other non-cash items, net	31.9	17.6	70.6
Changes in assets and liabilities, net of acquisitions of businesses:
Accounts receivable	74.8	(56.6)	23.1
Inventories	(24.1)	17.0	22.0
Other operating assets	13.0	74.6	(77.3)
Accounts payable	38.6	(12.1)	25.1
Accrued expenses	(66.7)	32.3	53.5
Deferred revenue	122.1	106.6	198.1
Other operating liabilities	7.3	44.4	34.0
Net cash provided by operating activities	1,268.1	1,349.6	1,386.3
Cash flows from investing activities:
Purchases of investments	(2,596.8)	(1,018.5)	(2,287.7)
Maturities, sales and collections of investments	1,952.0	1,993.5	2,464.7
Purchases of property and equipment	(175.3)	(221.4)	(303.3)
Acquisitions of businesses	(84.6)	0	(106.5)
Other investing activities, net	1.5	6.8	4.2
Net cash provided by (used in) investing activities	(903.2)	760.4	(228.6)
Cash flows from financing activities:
Issuance of common stock under employee stock award plans	156.9	201.4	110.6
Repurchase of common stock and forward contract	(1,165.2)	(1,881.5)	(590.0)
Excess tax benefit from stock-based compensation	55.2	52.5	72.9
Repayment of debt	0	(1,264.9)	0
Issuance of long-term debt, net	494.7	0	987.3
Dividends paid	(207.4)	(202.3)	0
Other financing activities, net	(9.4)	(9.2)	(1.9)
Net cash provided by (used in) financing activities	(675.2)	(3,104.0)	578.9
Effect of exchange rate changes on cash and cash equivalents	(59.2)	7.9	(9.3)
Net increase (decrease) in cash and cash equivalents	(369.5)	(986.1)	1,727.3
Cash and cash equivalents:
Beginning of year	2,291.0	3,277.1	1,549.8
End of year	$ 1,921.5	$ 2,291.0	$ 3,277.1

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Restructuring and Other Charges - Additional Information (Detail)	12 Months Ended
	Apr. 24, 2015	Mar. 31, 2014	May 31, 2013
Restructuring Cost and Reserve [Line Items]
Reduction of global work force		4.00%	7.00%
May 2013 Restructuring
Restructuring Cost and Reserve [Line Items]
Reduction of global work force, completion date	Apr. 25, 2014
March 2014 Restructuring
Restructuring Cost and Reserve [Line Items]
Reduction of global work force, completion date	Apr. 24, 2015

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Balance Sheet Details - Property and Equipment Net (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 2,223.1	$ 2,192.5
Accumulated depreciation and amortization	(1,193.2)	(1,083.7)
Property and equipment, net	1,029.9	1,108.8
Land
Property Plant And Equipment [Line Items]
Property and equipment, gross	265.5	265.7
Buildings and improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	607.0	541.7
Leasehold improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	106.6	102.9
Computer, production, engineering and other equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	753.7	753.8
Computer software
Property Plant And Equipment [Line Items]
Property and equipment, gross	371.9	369.1
Furniture and fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	85.4	86.4
Construction-in-progress
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 33.0	$ 72.9

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Income Taxes - Deferred Tax Assets and Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Components of Deferred Tax Assets and Liabilities [Abstract]
Reserves and accruals	$ 94.3	$ 89.3
Acquired intangibles	43.8	22.3
Net operating loss and credit carryforwards	79.6	87.6
Stock-based compensation	70.4	73.3
Deferred revenue	297.7	318.9
Other	27.0	19.8
Gross deferred tax assets	612.8	611.2
Valuation allowance	(57.7)	(49.6)
Deferred tax assets, net of valuation allowance	555.1	561.6
Reserves and accruals	4.0	3.9
Acquired intangibles	13.7	10.0
Property and equipment	26.3	30.8
Other	3.5	2.6
Total deferred tax liabilities	47.5	47.3
Deferred tax assets, net of valuation allowance and deferred tax liabilities	$ 507.6	$ 514.3

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Financing Arrangements (Tables)

12 Months Ended

Apr. 24, 2015

Debt Disclosure [Abstract]

Carrying Value of Long-Term Debt

The following table summarizes information related to our long-term debt (in millions, except interest rates):

	April 24, 2015						April 25, 2014
				Effective						Effective
	Amount			Interest Rate			Amount			Interest Rate
2.00% Senior Notes Due 2017	$	750.0			2.25	%	$	750.0			2.25	%
3.375% Senior Notes Due 2021		500.0			3.54	%		—		N/A
3.25% Senior Notes Due 2022		250.0			3.43	%		250.0			3.43	%
Total principal amount		1,500.0						1,000.0
Less:
Unamortized discount		(5.0	)					(4.5	)
Unamortized issuance costs		(7.5	)					(5.4	)
Total long-term debt	$	1,487.5					$	990.1

Future Principal Debt Maturities

As of April 24, 2015, our aggregate future principal debt maturities for our Senior Notes are as follows (in millions):

Fiscal Year	Amount
2018	$	750.0
Thereafter		750.0
Total	$	1,500.0

Amount of Interest Expense Related to Convertible Notes

The interest expense recognized on the Convertible Notes consisted of the following (in millions):

	Year Ended
	April 25, 2014		April 26, 2013
Contractual coupon interest expense	$	2.5	$	22.0
Amortization of debt discount		7.1		55.5
Amortization of debt issuance costs		0.6		4.8
Less capitalized interest		—		(1.1	)
Total interest expense related to Convertible Notes	$	10.2	$	81.2

Amounts Due Under Other Long-Term Financing Arrangements

The following presents the amounts due under other long-term financing arrangements (in millions):

	April 24, 2015			April 25, 2014
Other long-term financing arrangements	$	15.9		$	13.1
Less:  current portion		(9.5	)		(6.6	)
Non-current portion of other long-term financing arrangements	$	6.4		$	6.5

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Balance Sheet Details - Product Warranty Liabilities (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014
Movement In Standard Product Warranty Accrual [Roll Forward]
Balance at beginning of year	$ 110.0	$ 117.2
Expense accrued during the year	35.2	70.2
Warranty costs incurred	(59.5)	(77.4)
Balance at end of year	85.7	110.0
Standard Product Warranty Accrual, Balance Sheet Classification [Abstract]
Accrued expenses	57.8	73.0
Other long-term liabilities	27.9	37.0
Total warranty liabilities	$ 85.7	$ 110.0

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Income Taxes

12 Months Ended

Apr. 24, 2015

Income Tax Disclosure [Abstract]

Income Taxes

14. Income Taxes

Income before income taxes is as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Domestic	$	252.9	$	120.5	$	(63.8	)
Foreign		459.9		620.2		630.4
Total	$	712.8	$	740.7	$	566.6

Domestic income before taxes is lower than foreign income before taxes due to significant domestic expenses related to the amortization of intangibles, stock based compensation and, for fiscal years 2014 and 2013, convertible notes interest.

The provision for income taxes consists of the following (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Current:
Federal	$	103.6		$	123.7		$	85.3
State		11.7			14.6			14.6
Foreign		40.3			40.9			38.0
Total current		155.6			179.2			137.9
Deferred:
Federal		8.0			(64.8	)		(56.9	)
State		(3.3	)		(6.1	)		(17.8	)
Foreign		(7.4	)		(5.1	)		(1.9	)
Total deferred		(2.7	)		(76.0	)		(76.6	)
Provision for income taxes	$	152.9		$	103.2		$	61.3

The provision for income taxes differs from the amount computed by applying the statutory federal income tax rate as follows (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Tax computed at federal statutory rate	$	249.5		$	259.2		$	198.3
State income taxes, net of federal benefit		5.4			5.6			(2.0	)
Foreign earnings in lower tax jurisdictions		(141.0	)		(163.3	)		(144.4	)
Stock-based compensation		5.5			9.8			18.4
Research and experimentation credits		(13.7	)		(8.7	)		(12.1	)
Resolution of income tax examinations		46.4			—			0.1
Other		0.8			0.6			3.0
Provision for income taxes	$	152.9		$	103.2		$	61.3

The components of our deferred tax assets and liabilities are as follows (in millions):

	April 24, 2015			April 25, 2014
Deferred tax assets:
Reserves and accruals	$	94.3		$	89.3
Acquired intangibles		43.8			22.3
Net operating loss and credit carryforwards		79.6			87.6
Stock-based compensation		70.4			73.3
Deferred revenue		297.7			318.9
Other		27.0			19.8
Gross deferred tax assets		612.8			611.2
Valuation allowance		(57.7	)		(49.6	)
Deferred tax assets, net of valuation allowance		555.1			561.6
Deferred tax liabilities:
Reserves and accruals		4.0			3.9
Acquired intangibles		13.7			10.0
Property and equipment		26.3			30.8
Other		3.5			2.6
Total deferred tax liabilities		47.5			47.3
Deferred tax assets, net of valuation allowance and deferred tax liabilities	$	507.6		$	514.3

Net deferred tax assets consist of the following (in millions):

	April 24, 2015		April 25, 2014
Current deferred tax assets, net	$	251.7	$	269.3
Non-current deferred tax assets, net	$	255.9	$	245.0

The valuation allowance increased by $8.1 million and $9.8 million in fiscal 2015 and 2014, respectively. The increases are mainly attributable to corresponding changes in deferred tax assets, primarily foreign tax credit carryforwards in a foreign jurisdiction and state tax credit carryforwards in certain states.

As of April 24, 2015, the federal and state net operating loss carryforwards were approximately $21.7 million and $85.4 million, respectively, before applying tax rates for the respective jurisdictions. The federal and state tax credit carryforwards were approximately $117.0 million and $145.5 million, respectively. Certain acquired net operating loss and credit carryforwards are subject to an annual limitation under Internal Revenue Code Section 382, but are expected to be realized with the exception of those which have a valuation allowance. The federal and state net operating loss carryforwards and credits will expire in various years from fiscal 2018 through 2035. If realized, $122.0 million, tax effected, of net operating loss and tax credit carryovers will be recognized as additional paid-in capital.

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Balance at beginning of period	$	235.9		$	189.6		$	161.0
Additions based on tax positions related to the current year		21.7			26.9			34.5
Additions for tax positions of prior years		101.2			23.8			1.0
Decreases for tax positions of prior years		(29.3	)		(4.4	)		(6.9	)
Settlements		(57.6	)		—			—
Balance at end of period	$	271.9		$	235.9		$	189.6

As of April 24, 2015, we had $271.9 million of gross unrecognized tax benefits, of which $213.6 million has been recorded in other long-term liabilities. Unrecognized tax benefits of $167.5 million, including penalties, interest and indirect benefits, would affect our provision for income taxes if recognized.

We recognize accrued interest and penalties related to unrecognized tax benefits in the income tax provision. During fiscal 2015, 2014 and 2013, we recognized accrued interest and penalties of approximately $3.6 million, $2.2 million and $1.2 million, respectively in the consolidated statements of operations and $8.6 million and $5.0 million, respectively, were recorded in the consolidated balance sheets as of April 24, 2015 and April 25, 2014.

The tax years that remain subject to examination for our major tax jurisdictions are shown below:

Fiscal Years Subject to Examination for Major Tax Jurisdictions at April 24, 2015

2008 — 2015	United States — federal income tax
2008 — 2015	United States — state and local income tax
2011 — 2015	Australia
2009 — 2015	Germany
2006 — 2015	India
2009 — 2015	Japan
2011 — 2015	The Netherlands
2013 — 2015	United Kingdom
2008 — 2015	Canada

In addition, we are effectively subject to federal tax examination adjustments for tax years ended on or after fiscal 2001, in that we have net operating loss carryforwards from these years that could be subject to adjustment upon utilization.

In July 2014, the Internal Revenue Service (IRS) completed the examination of our fiscal 2005 to 2007 income tax returns upon approval by the Joint Committee of Taxation. We recorded a $47.4 million income tax provision attributable to the audit settlement and related re-measurement of uncertain tax positions for tax years subject to future audits. The audit adjustments resulted in lower earnings in our foreign subsidiaries which reduced the taxability of dividends that were previously repatriated from such subsidiaries. Due to this reduction in taxable dividends, the conclusion of the fiscal 2005 to 2007 income tax audit resulted in a net refund of $8.0 million, excluding interest.

In October 2014, the United Kingdom’s (UK’s) tax authority concluded the examination of our fiscal 2009 to 2012 UK income tax returns. We recorded a $1.0 million income tax benefit for the net impact of the audit adjustments and related release of unrecognized tax benefits.

We are currently undergoing federal income tax audits in the United States (U.S.) and several foreign tax jurisdictions. Transfer pricing calculations are key issues under audits in various jurisdictions, and are often subject to dispute and appeals. The IRS is currently auditing our fiscal 2008 to 2010 income tax returns. We expect the IRS examination team to complete their field audit within the next twelve months. However, the resolution of the fiscal 2008 to 2010 income tax return audits may likely occur beyond the next twelve months should we choose to appeal the IRS examination team’s audit findings.

On September 17, 2010, the Danish Tax Authorities issued a decision concluding that distributions declared in 2005 and 2006 from our Danish subsidiary were subject to Danish at-source dividend withholding tax. We do not believe that our Danish subsidiary is liable for withholding tax and filed an appeal with the Danish Tax Tribunal to that effect. On December 19, 2011, the Danish Tax Tribunal issued a ruling that our Danish subsidiary was not liable for Danish withholding tax. The Danish tax examination agency appealed to the Danish High Court in March 2012. The Danish High Court hearing has not yet occurred.

We engage in continuous discussion and negotiation with taxing authorities regarding tax matters in multiple jurisdictions.We believe that within the next 12 months, it is reasonably possible that either certain audits will conclude, certain statutes of limitations will lapse, or both. Given the uncertainties involved in all tax audits, we estimate a potential decrease in our unrecognized tax benefit balance of up to $95.4 million may occur within the next 12 months associated with the potential settlements and statute lapses.

As of April 24, 2015, the amount of accumulated unremitted earnings from our foreign subsidiaries is approximately $3.3 billion. We have not provided U.S. income taxes and foreign withholding taxes on the undistributed earnings of foreign subsidiaries because we intend to permanently reinvest such earnings outside the U.S. If these foreign earnings were to be repatriated in the future, the related U.S. tax liability may be reduced by any foreign income taxes previously paid on these earnings as well as tax attribute carryforwards. We estimate the unrecognized deferred tax liability related to these earnings to be approximately $1 billion as of April 24, 2015.

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Stockholders' Equity (Tables)

12 Months Ended

Apr. 24, 2015

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Activity Related to Stock Options

The following table summarizes activity related to our stock options (in millions, except for exercise price and contractual term):

	Number of Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Outstanding at April 27, 2012		20.6		$	29.98
Granted		2.4		$	28.87
Exercised		(3.0	)	$	18.37
Forfeited and expired		(0.8	)	$	40.11
Outstanding at April 26, 2013		19.2		$	31.27
Granted		2.9		$	38.26
Exercised		(6.3	)	$	25.83
Forfeited and expired		(1.3	)	$	42.47
Outstanding as of April 25, 2014		14.5		$	34.10
Granted		2.2		$	36.64
Exercised		(4.6	)	$	25.25
Forfeited and expired		(0.6	)	$	42.42
Outstanding as of April 24, 2015		11.5		$	37.74		3.70	$	29.8
Vested and expected to vest as of April 24, 2015		11.1		$	37.78		3.63	$	29.5
Exercisable as of April 24, 2015		7.9		$	38.32		2.89	$	26.1

Additional Information Related to Stock Options

Additional information related to our stock options is summarized below (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Intrinsic value of exercises	$	69.9	$	90.7	$	46.1
Proceeds received from exercises	$	116.6	$	163.7	$	56.5
Fair value of options vested	$	33.4	$	45.3	$	55.9

Activity Related to Restricted Stock Units (RSUs)

The following table summarizes activity related to our RSUs (in millions, except for fair value):

	Number of Shares			Weighted- Average Grant Date Fair Value
Outstanding at April 27, 2012		12.0		$	43.28
Granted		6.0		$	29.94
Vested		(4.0	)	$	39.83
Forfeited		(1.2	)	$	40.95
Outstanding at April 26, 2013		12.8		$	38.36
Granted		6.5		$	38.61
Vested		(4.5	)	$	38.48
Forfeited		(1.6	)	$	39.08
Outstanding as of April 25, 2014		13.2		$	38.35
Granted		6.5		$	35.80
Vested		(4.7	)	$	40.14
Forfeited		(1.7	)	$	37.48
Outstanding as of April 24, 2015		13.3		$	36.58

Number and Value of the Shares Netted for Employee Taxes

The number and value of the shares netted for employee taxes are summarized in the table below (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Shares withheld for taxes		1.5		1.5		1.3
Fair value of shares withheld	$	56.8	$	57.7	$	40.9

Schedule of Employee Stock Purchase Plan (ESPP) Disclosures

The following table summarizes activity related to the purchase rights issued under the ESPP (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Shares issued under the ESPP		3.4		3.8		3.8
Proceeds from issuance of shares	$	97.1	$	95.5	$	95.0

Stock-Based Compensation Expense

Stock-based compensation expense is included in the consolidated statements of operations as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Cost of product revenues	$	5.8	$	5.6	$	6.1
Cost of hardware maintenance and other services revenues		16.0		16.7		19.4
Sales and marketing		116.5		125.0		132.2
Research and development		84.1		87.7		84.1
General and administrative		36.9		38.0		34.8
Total stock-based compensation expense	$	259.3	$	273.0	$	276.6

Income Tax Effects Associated with Employee Stock Transactions

Total income tax benefit associated with employee stock transactions and recognized in stockholders’ equity were as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Income tax benefit associated with employee stock transactions	$	56.9	$	40.5	$	53.8

Summary of Valuation Assumptions

The valuation of stock options, RSUs and ESPP purchase rights and the underlying weighted-average assumptions are summarized as follows:

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Stock options:
Expected term in years		4.8			4.8			4.8
Risk-free interest rate		1.6	%		1.1	%		0.6	%
Expected volatility		29	%		34	%		41	%
Expected dividend yield		1.8	%		1.6	%		—	%
Weighted-average fair value per share granted	$	8.24		$	9.85		$	11.52
RSUs:
Risk-free interest rate		0.6	%		0.5	%	N/A
Expected dividend yield		1.8	%		1.6	%		—	%
Weighted-average fair value per share granted	$	35.80		$	38.61		$	29.94
ESPP:
Expected term in years		1.3			1.2			1.2
Risk-free interest rate		0.2	%		0.2	%		0.2	%
Expected volatility		27	%		31	%		40	%
Expected dividend yield		1.8	%		1.6	%		—	%
Weighted-average fair value per right granted	$	9.81		$	10.83		$	10.36

Summary of Activities Related to Stock Repurchase Program

The following table summarizes activity related to this program (in millions, except per share information):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Number of shares repurchased		29.6		47.3		18.1
Average price per share	$	39.30	$	39.78	$	32.68
Aggregate purchase price	$	1,165.2	$	1,881.5	$	590.0
Remaining authorization at end of period	$	2,459.5	$	1,124.8	$	1,406.3

Summary of Activities Related to Dividends on Common Stock

The following is a summary of our fiscal 2015 and 2014 activities related to dividends on our common stock (in millions, except per share amounts). No dividends were declared or paid in fiscal 2013.

	Year Ended
	April 24, 2015		April 25, 2014
Dividends per share declared	$	0.66	$	0.60
Dividend payments allocated to additional paid-in capital	$	52.0	$	50.4
Dividend payments allocated to retained earnings	$	155.4	$	151.9

Accumulated Other Comprehensive Income (Loss) by Component Net of Tax

Changes in AOCI by component, net of tax, are summarized below (in millions):

	Foreign Currency Translation Adjustments			Defined Benefit Obligation Adjustments			Unrealized Gains on Available- for-Sale Securities			Unrealized Gains (Losses) on Derivatives Instruments			Total
Balance as of April 26, 2013	$	2.0		$	(5.7	)	$	11.4		$	1.0		$	8.7
OCI before reclassifications, net of tax		3.5			0.5			(1.2	)		(3.5	)		(0.7	)
Amounts reclassified from AOCI, net of tax		—			0.4			(1.3	)		2.0			1.1
Total OCI		3.5			0.9			(2.5	)		(1.5	)		0.4
Balance as of April 25, 2014		5.5			(4.8	)		8.9			(0.5	)		9.1
OCI before reclassifications, net of tax		(28.3	)		(7.8	)		2.3			15.5			(18.3	)
Amounts reclassified from AOCI, net of tax		—			0.2			(0.3	)		(14.4	)		(14.5	)
Total OCI		(28.3	)		(7.6	)		2.0			1.1			(32.8	)
Balance as of April 24, 2015	$	(22.8	)	$	(12.4	)	$	10.9		$	0.6		$	(23.7	)

Amounts Reclassified Out of Accumulated Other Comprehensive Income (Loss)

The amounts reclassified out of AOCI are as follows (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
	Amounts Reclassified from AOCI									Statements of Operations Location
Recognized losses on defined benefit     obligations	$	0.2		$	0.4		$	—		Operating expenses
Realized gains on available-for-sale     securities		(0.3	)		(1.3	)		(0.6	)	Other income (expense), net
Realized (gains) losses on cash flow hedges		(14.4	)		2.0			(2.2	)	Net revenues
Total reclassifications	$	(14.5	)	$	1.1		$	(2.8	)

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Income Taxes - Statutory Federal Income Tax Rate (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Tax computed at federal statutory rate	$ 249.5	$ 259.2	$ 198.3
State income taxes, net of federal benefit	5.4	5.6	(2.0)
Foreign earnings in lower tax jurisdictions	(141.0)	(163.3)	(144.4)
Stock-based compensation	5.5	9.8	18.4
Research and experimentation credits	(13.7)	(8.7)	(12.1)
Resolution of income tax examinations	46.4	0	0.1
Other	0.8	0.6	3.0
Provision for income taxes	$ 152.9	$ 103.2	$ 61.3

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Segment, Geographic, and Significant Customer Information

12 Months Ended

Apr. 24, 2015

Segment Reporting [Abstract]

Segment, Geographic, and Significant Customer Information

16. Segment, Geographic, and Significant Customer Information

We operate in one industry segment: the design, manufacturing, marketing, and technical support of high-performance storage and data management solutions. We conduct business globally, and our sales and support activities are managed on a geographic basis. Our management reviews financial information presented on a consolidated basis, accompanied by disaggregated information it receives from our internal management system about revenues by geographic region, based on the location from which the customer relationship is managed, for purposes of allocating resources and evaluating financial performance. We do not allocate costs of revenues, research and development, sales and marketing, or general and administrative expenses to our geographic regions in this internal management reporting because management does not review operations or operating results, or make planning decisions, below the consolidated entity level.

Summarized revenues by geographic region based on information from our internal management system and utilized by our Chief Executive Officer, who is considered our Chief Operating Decision Maker, is as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
United States, Canada and Latin America (Americas)	$	3,446.8	$	3,513.3	$	3,552.5
Europe, Middle East and Africa (EMEA)		1,857.4		1,954.6		1,928.8
Asia Pacific (APAC)		818.5		857.2		851.1
Net revenues	$	6,122.7	$	6,325.1	$	6,332.4

Americas revenues consist of sales to Americas commercial and U.S. public sector markets. Sales to customers inside the U.S. were $3,096.1 million, $3,130.9 million and $3,152.7 million during fiscal 2015, 2014 and 2013, respectively.

The majority of our assets, excluding cash, cash equivalents, short-term investments and accounts receivable, were attributable to our domestic operations. The following table presents cash, cash equivalents and short-term investments held in the U.S. and internationally in various foreign subsidiaries (in millions):

	April 24, 2015		April 25, 2014
U.S.	$	596.2	$	681.8
International		4,730.0		4,321.5
Total	$	5,326.2	$	5,003.3

With the exception of property and equipment, we do not identify or allocate our long-lived assets by geographic area. The following table presents property and equipment information for geographic areas based on the physical location of the assets (in millions):

	April 24, 2015		April 25, 2014
U.S.	$	926.9	$	1,021.4
International		103.0		87.4
Total	$	1,029.9	$	1,108.8

The following customers, each of which is a distributor, accounted for 10% or more of our net revenues:

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Arrow Electronics, Inc.		23	%		22	%		19	%
Avnet, Inc.		16	%		16	%		15	%

The following customers accounted for 10% or more of accounts receivable:

	April 24, 2015			April 25, 2014
Arrow Electronics, Inc.		14	%		14	%
Avnet, Inc.		16	%		16	%

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Financial Instruments and Fair Value Measurements - Summary of Investments (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	$ 3,681.2	$ 2,888.7
Gross unrealized gains	11.4	10.8
Gross unrealized losses	(0.5)	(1.5)
Estimated fair value	3,692.1	2,898.0
Corporate Bonds
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	2,249.4	2,142.3
Gross unrealized gains	8.7	10.5
Gross unrealized losses	(0.5)	(0.5)
Estimated fair value	2,257.6	2,152.3
U.S. Treasury and Government Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	1,055.7	263.4
Gross unrealized gains	2.5	0.3
Gross unrealized losses	0	(0.1)
Estimated fair value	1,058.2	263.6
Foreign Government Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	37.7	0
Gross unrealized gains	0.2	0
Gross unrealized losses	0	0
Estimated fair value	37.9	0
Commercial Paper
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	20.0	168.4
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Estimated fair value	20.0	168.4
Certificates of Deposit
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	286.2	245.0
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Estimated fair value	286.2	245.0
Auction Rate Securities
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	0	36.9
Gross unrealized gains	0	0
Gross unrealized losses	0	(0.9)
Estimated fair value	0	36.0
Mutual Funds
Schedule of Available-for-sale Securities [Line Items]
Cost or amortized cost	32.2	32.7
Gross unrealized gains	0	0
Gross unrealized losses	0	0
Estimated fair value	$ 32.2	$ 32.7

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Segment Geographic and Significant Customer Information - Schedule of Cash, Cash Equivalents and Short-Term Investments (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Segment Reporting Information [Line Items]
Cash, cash equivalents and short-term investments	$ 5,326.2	$ 5,003.3
U.S.
Segment Reporting Information [Line Items]
Cash, cash equivalents and short-term investments	596.2	681.8
International
Segment Reporting Information [Line Items]
Cash, cash equivalents and short-term investments	$ 4,730.0	$ 4,321.5

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Millions	Total USD ($)	Common Stock USD ($)	Common Stock Put Option	Common Stock Warrant	Additional Paid-in Capital USD ($)	Treasury Stock USD ($)	Retained Earnings USD ($)	Accumulated Other Comprehensive Income (Loss) USD ($)
Balances at Apr. 27, 2012	$ 4,293.6	$ 0.5			$ 4,410.3	$ (2,927.4)	$ 2,805.3	$ 4.9
Balances (in shares) at Apr. 27, 2012		468.9
Balances (in shares) at Apr. 27, 2012		0				(104.3)
Net income	505.3	0			0	0	505.3	0
Other comprehensive income (loss)	3.8	0			0	0	0	3.8
Reclassification of equity component of convertible notes	62.6	0			62.6	0	0	0
Issuance of common stock under employee stock award plans, net of taxes (in shares)		10.1				0
Issuance of common stock under employee stock award plans, net of taxes	110.6	0			110.6	0	0	0
Repurchase of common stock and forward contract, shares	(18.1)	(18.1)				0
Repurchase of common stock and forward contract	(590.0)	0			(176.2)	0	(413.8)	0
Stock-based compensation	276.6	0			276.6	0	0	0
Income tax benefit from employee stock transactions	53.8	0			53.8	0	0	0
Vested options assumed in acquisition (in shares)		0				0
Vested options assumed in acquisition	1.2	0			1.2	0	0	0
Balances at Apr. 26, 2013	4,717.5	0.5			4,738.9	(2,927.4)	2,896.8	8.7
Balances (in shares) at Apr. 26, 2013		460.9
Balances (in shares) at Apr. 26, 2013		0				(104.3)
Net income	637.5	0			0	0	637.5	0
Other comprehensive income (loss)	0.4	0			0	0	0	0.4
Issuance of common stock under employee stock award plans, net of taxes (in shares)		13.1				0
Issuance of common stock under employee stock award plans, net of taxes	201.4	0			201.4	0	0	0
Conversion of convertible notes		4.9				0
Exercise of convertible note hedges and warrants			(3.9)	1.1
Repurchase of common stock and forward contract, shares	(47.3)	(47.3)				0
Repurchase of common stock and forward contract	(1,881.5)	(0.1)			(813.4)	0	(1,068.0)	0
Retirement of treasury stock (in shares)		(104.3)				104.3
Retirement of treasury stock	0	(0.1)			(614.0)	2,927.4	(2,313.3)	0
Stock-based compensation	273.0	0			273.0	0	0	0
Income tax benefit from employee stock transactions	40.5	0			40.5	0	0	0
Cash dividends declared ($0.60 and $0.66 per common share)	(202.3)	0			(50.4)	0	(151.9)	0
Balances at Apr. 25, 2014	3,786.5	0.3			3,776.0	0	1.1	9.1
Balances (in shares) at Apr. 25, 2014		324.5				0
Balances (in shares) at Apr. 25, 2014		0				0
Net income	559.9	0			0	0	559.9	0
Other comprehensive income (loss)	(32.8)	0			0	0	0	(32.8)
Issuance of common stock under employee stock award plans, net of taxes (in shares)		11.2				0
Issuance of common stock under employee stock award plans, net of taxes	156.9	0			156.9	0	0	0
Repurchase of common stock and forward contract, shares	(29.6)	(29.6)				0
Repurchase of common stock and forward contract	(1,165.2)	0			(812.8)	0	(352.4)	0
Stock-based compensation	259.3	0			259.3	0	0	0
Income tax benefit from employee stock transactions	56.9	0			56.9	0	0	0
Cash dividends declared ($0.60 and $0.66 per common share)	(207.4)	0			(52.0)	0	(155.4)	0
Balances at Apr. 24, 2015	$ 3,414.1	$ 0.3			$ 3,384.3	$ 0	$ 53.2	$ (23.7)
Balances (in shares) at Apr. 24, 2015		306.1
Balances (in shares) at Apr. 24, 2015						0

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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Apr. 24, 2015	Apr. 25, 2014
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares issued	306,100,000	324,500,000
Common stock, shares outstanding	306,100,000	324,500,000

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Financial Instruments and Fair Value Measurements

12 Months Ended

Apr. 24, 2015

Investments Debt And Equity Securities [Abstract]

Financial Instruments and Fair Value Measurements

9. Financial Instruments and Fair Value Measurements

The accounting guidance for fair value measurements provides a framework for measuring fair value on either a recurring or nonrecurring basis, whereby the inputs used in valuation techniques are assigned a hierarchical level. The following are the three levels of inputs to measure fair value:

Level 1: Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets.

Level 2: Inputs that reflect quoted prices for identical assets or liabilities in less active markets; quoted prices for similar assets or liabilities in active markets; benchmark yields, reported trades, broker/dealer quotes, inputs other than quoted prices that are observable for the assets or liabilities; or inputs that are derived principally from or corroborated by observable market data by correlation or other means.

Level 3: Unobservable inputs that reflect our own assumptions incorporated in valuation techniques used to measure fair value. These assumptions are required to be consistent with market participant assumptions that are reasonably available.

We consider an active market to be one in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis, and consider an inactive market to be one in which there are infrequent or few transactions for the asset or liability, the prices are not current, or price quotations vary substantially either over time or among market makers. Where appropriate, our own or the counterparty’s non-performance risk is considered in measuring the fair values of liabilities and assets, respectively.

Investments

The following is a summary of our investments (in millions):

	April 24, 2015									April 25, 2014
	Cost or							Estimated		Cost or							Estimated
	Amortized		Gross Unrealized					Fair		Amortized		Gross Unrealized					Fair
	Cost		Gains		Losses			Value		Cost		Gains		Losses			Value
Corporate bonds	$	2,249.4	$	8.7	$	(0.5	)		2,257.6	$	2,142.3	$	10.5	$	(0.5	)	$	2,152.3
U.S. Treasury and government debt    securities		1,055.7		2.5		—			1,058.2		263.4		0.3		(0.1	)		263.6
Foreign government debt securities		37.7		0.2		—			37.9		—		—		—			—
Commercial paper		20.0		—		—			20.0		168.4		—		—			168.4
Certificates of deposit		286.2		—		—			286.2		245.0		—		—			245.0
Auction rate securities		—		—		—			—		36.9		—		(0.9	)		36.0
Mutual funds		32.2		—		—			32.2		32.7		—		—			32.7
Total debt and equity securities	$	3,681.2	$	11.4	$	(0.5	)	$	3,692.1	$	2,888.7	$	10.8	$	(1.5	)	$	2,898.0

As of April 24, 2015, gross unrealized losses related to individual securities were not significant. The following table shows the gross unrealized losses and estimated fair values of our available-for-sale investments with gross unrealized losses and the length of time that individual securities have been in continuous unrealized loss positions as of April 25, 2014 (in millions):

	April 25, 2014
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate bonds	$	233.1	$	(0.5	)	$	—	$	—		$	233.1	$	(0.5	)
U.S. Treasury and government debt securities		63.0		(0.1	)		—		—			63.0		(0.1	)
Auction rate securities		—		—			36.0		(0.9	)		36.0		(0.9	)
Total	$	296.1	$	(0.6	)	$	36.0	$	(0.9	)	$	332.1	$	(1.5	)

The following table presents the contractual maturities of our debt investments as of April 24, 2015 (in millions):

	Amortized Cost		Fair Value
Due in one year or less	$	1,437.8	$	1,440.2
Due after one year through five years		2,211.2		2,219.7
	$	3,649.0	$	3,659.9

Actual maturities may differ from the contractual maturities because borrowers may have the right to call or prepay certain obligations.

Fair Value of Financial Instruments

The following table summarizes our financial assets and liabilities measured at fair value on a recurring basis (in millions):

	April 24, 2015
				Fair Value Measurements at Reporting Date Using
	Total			Level 1		Level 2
Cash	$	1,666.3		$	1,666.3	$	—
Corporate bonds		2,257.6			—		2,257.6
U.S. Treasury and government debt securities		1,058.2			145.6		912.6
Foreign government debt securities		37.9			—		37.9
Commercial paper		20.0			—		20.0
Certificates of deposit		286.2			—		286.2
Total cash, cash equivalents and short-term investments	$	5,326.2		$	1,811.9	$	3,514.3
Other items:
Mutual funds(1)	$	2.8		$	2.8	$	—
Mutual funds(2)	$	29.4		$	29.4	$	—
Foreign currency exchange contracts assets(1)	$	3.4		$	—	$	3.4
Long-term debt	$	(1,523.6	)	$	—	$	(1,523.6	)

	April 25, 2014
				Fair Value Measurements at Reporting Date Using
	Total			Level 1		Level 2			Level 3
Cash	$	2,174.0		$	2,174.0	$	—		$	—
Corporate bonds		2,152.3			—		2,152.3			—
U.S. Treasury and government debt securities		263.6			185.1		78.5			—
Commercial paper		168.4			—		168.4			—
Certificates of deposit		245.0			—		245.0			—
Total cash, cash equivalents and short-term investments	$	5,003.3		$	2,359.1	$	2,644.2		$	—
Other items:
Auction rate securities(2)	$	36.0		$	—	$	—		$	36.0
Mutual funds(1)	$	6.4		$	6.4	$	—		$	—
Mutual funds(2)	$	26.3		$	26.3	$	—		$	—
Foreign currency exchange contracts assets(1)	$	0.4		$	—	$	0.4		$	—
Foreign currency exchange contracts liabilities(3)	$	(1.9	)	$	—	$	(1.9	)	$	—
Long-term debt	$	(1,000.0	)	$	—	$	(1,000.0	)	$	—

⁽¹⁾ Reported as other current assets in the consolidated balance sheets

⁽²⁾ Reported as other non-current assets in the consolidated balance sheets

⁽³⁾ Reported as accrued expenses in the consolidated balance sheets

Our Level 2 debt instruments are held by a custodian who prices some of the investments using standard inputs in various asset price models or obtains investment prices from third-party pricing providers that incorporate standard inputs in various asset price models. These pricing providers utilize the most recent observable market information in pricing these securities or, if specific prices are not available for these securities, use other observable inputs like market transactions involving identical or comparable securities. We review Level 2 inputs and fair value for reasonableness and the values may be further validated by comparison to multiple independent pricing sources. In addition, we review third-party pricing provider models, key inputs and assumptions and understand the pricing processes at our third-party providers in determining the overall reasonableness of the fair value of our Level 2 financial instruments. As of April 24, 2015 and April 25, 2014, we have not made any adjustments to the prices obtained from our third-party pricing providers.

During fiscal 2015, we settled our remaining ARS investments, which had been classified as Level 3 financial instruments at their respective par values. Quantitative information about our Level 3 fair value measurements as of April 24, 2014 for our ARSs is as follows:

	Estimated Fair Value as of April 25, 2014 (in millions)		Valuation Techniques	Unobservable Inputs	Range (Weighted average)
ARSs	$	36.0	Discounted cash flow	Time-to-economic maturity	6.7 yrs - 10.0 yrs (8.2 yrs)
				Illiquidity premium	1.1% - 2.8% (1.8%)
				Coupon rate	1.1% - 2.7% (1.8%)
			Market comparable securities	Discount rate	1.0% - 5.0% (2.4%)

All of our ARSs were backed by pools of student loans guaranteed by the U.S. Department of Education. We estimated the fair value of each individual ARS using an income (discounted cash flow) and market approach that incorporated both observable and unobservable inputs. Key inputs into the discounted cash flow analysis included the time-to-economic maturity, illiquidity premium, (which factors in liquidity risk, market credit spread and other factors), and a coupon rate. The key input into the market approach is a discount rate. We reviewed the fair value of our Level 3 financial instruments for overall reasonableness by reviewing service provider pricing methodologies, key inputs and assumptions and by understanding the processes used by our third-party service provider.

The table below provides a reconciliation of the beginning and ending balance of our Level 3 ARSs measured at fair value on a recurring basis using significant unobservable inputs (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Balance at beginning of year	$	36.0		$	42.0		$	51.0
Total unrealized gains, net included in other comprehensive    income (loss)		0.9			1.3			0.5
Total realized gains included in earnings		—			0.7			1.1
Sales		(10.0	)		(8.0	)		—
Settlements		(26.9	)		—			(10.6	)
Balance at end of year	$	—		$	36.0		$	42.0

Fair Value of Long-Term Debt

The fair value of our long-term debt was based on observable market prices in a less active market and discounted cash flow models that take into consideration variables such as credit-rating and interest rate changes. All of our debt obligations are categorized as Level 2 instruments.

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Income Taxes - Summary of Tax Years Remain Subject to Examinations under Major Tax Jurisdictions (Detail)	12 Months Ended
	Apr. 24, 2015
Federal Income Tax | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2008
Federal Income Tax | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2015
United States - State and Local Income Tax | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2008
United States - State and Local Income Tax | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2015
Australia | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2011
Australia | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2015
Germany | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2009
Germany | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2015
India | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2006
India | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2015
Japan | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2009
Japan | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2015
The Netherlands | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2011
The Netherlands | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2015
United Kingdom | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2013
United Kingdom | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2015
Canada | Earliest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2008
Canada | Latest Tax Year
Income Tax Examination [Line Items]
Tax year subject to examination	2015

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Derivatives and Hedging Activities - Schedule of Derivative Instruments Not Designated as Cash Flow Hedges (Detail) (Foreign Exchange Forward Contracts, USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Foreign Exchange Forward Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Foreign currency exchange contracts	$ 14.1	$ 0.8	$ 6.5

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Stockholders' Equity - Amounts Reclassified Out of Accumulated Other Comprehensive Income (Loss) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Operating expenses	$ 3,116.7	$ 3,184.8	$ 3,153.3
Other income (expense), net	1.7	7.6	8.3
Net revenues	6,122.7	6,325.1	6,332.4
Net income	559.9	637.5	505.3
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	(14.5)	1.1	(2.8)
Reclassification out of Accumulated Other Comprehensive Income | Recognized Losses on Defined Benefit Obligations
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Operating expenses	0.2	0.4	0
Reclassification out of Accumulated Other Comprehensive Income | Realized Gains on Available-for-Sale Securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other income (expense), net	(0.3)	(1.3)	(0.6)
Reclassification out of Accumulated Other Comprehensive Income | Realized (Gains) Losses on Cash Flow Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net revenues	$ (14.4)	$ 2.0	$ (2.2)

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Document and Entity Information (USD $)	12 Months Ended
	Apr. 24, 2015	May 29, 2015	Oct. 24, 2014
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Apr. 24, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Trading Symbol	NTAP
Entity Registrant Name	NetApp, Inc.
Entity Central Index Key	0001002047
Current Fiscal Year End Date	--04-24
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		304,979,186
Entity Public Float			$ 9,344,629,689

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Financing Arrangements

12 Months Ended

Apr. 24, 2015

Debt Disclosure [Abstract]

Financing Arrangements

10. Financing Arrangements

Long-term Debt

The following table summarizes information related to our long-term debt (in millions, except interest rates):

	April 24, 2015						April 25, 2014
				Effective						Effective
	Amount			Interest Rate			Amount			Interest Rate
2.00% Senior Notes Due 2017	$	750.0			2.25	%	$	750.0			2.25	%
3.375% Senior Notes Due 2021		500.0			3.54	%		—		N/A
3.25% Senior Notes Due 2022		250.0			3.43	%		250.0			3.43	%
Total principal amount		1,500.0						1,000.0
Less:
Unamortized discount		(5.0	)					(4.5	)
Unamortized issuance costs		(7.5	)					(5.4	)
Total long-term debt	$	1,487.5					$	990.1

N/A - Not Applicable

Senior Notes

On June 5, 2014 we issued $500.0 million aggregate par value of 3.375% Senior Notes, with a maturity date of June 15, 2021, and received proceeds of approximately $494.7 million, net of discount and issuance costs, which will be used for general corporate purposes, including possible stock repurchases, dividends, capital expenditures, working capital and potential acquisitions and strategic transactions. Our 2.00% Senior Notes and 3.25% Senior Notes, with a par value of $750.0 million and $250.0 million, respectively, were issued in December 2012. We collectively refer to such long-term debt as our Senior Notes. Interest on our Senior Notes is paid semi-annually on June 15 and December 15. Our Senior Notes, which are unsecured, unsubordinated obligations, rank equally in right of payment with any future senior unsecured indebtedness.

We may redeem the Senior Notes in whole or in part, at any time at our option at specified redemption prices. In addition, upon the occurrence of certain change of control triggering events, we may be required to repurchase the Senior Notes under specified terms. The Senior Notes also include covenants that limit our ability to incur debt secured by liens on assets or on shares of stock or indebtedness of our subsidiaries; to engage in sale and lease-back transactions; and to consolidate, merge or sell all or substantially all of our assets. As of April 24, 2015, we were in compliance with all covenants associated with the Senior Notes.

As of April 24, 2015, our aggregate future principal debt maturities for our Senior Notes are as follows (in millions):

Fiscal Year	Amount
2018	$	750.0
Thereafter		750.0
Total	$	1,500.0

1.75% Convertible Senior Notes due 2013 settled in June 2013

On June 10, 2008, we issued $1,265.0 million aggregate principal amount of 1.75% Convertible Senior Notes (the Convertible Notes) that matured in June 2013. Upon maturity, the Convertible Notes were converted into shares of common stock at a conversion rate of 31.40 shares of common stock per $1,000 principal amount of the Convertible Notes (which represented the effective conversion price of $31.85 per share). Upon conversion in June 2013, the holders received cash for the principal amount of the Convertible Notes and an aggregate of 4.9 million shares of common stock for the $178.9 million excess of the conversion value over the principal amount.

We separately accounted for the liability and equity components of the Convertible Notes. The initial debt component of the Convertible Notes was valued at $1,017.0 million based on the contractual cash flows discounted at an appropriate comparable market non-convertible debt borrowing rate at the date of issuance of 6.31%, with the equity component representing the residual amount of the proceeds of $248.0 million which was recorded as a debt discount. Issuance costs were allocated pro-rata based on the relative initial carrying amounts of the debt and equity components. As a result, $5.2 million of the issuance costs was allocated to the equity component of the Convertible Notes, and $21.4 million of the issuance costs remained classified as other non-current assets. The debt discount and the issuance costs allocated to the debt component were amortized as additional interest expense over the term of the Convertible Notes using the effective interest method.

The interest expense recognized on the Convertible Notes consisted of the following (in millions):

	Year Ended
	April 25, 2014		April 26, 2013
Contractual coupon interest expense	$	2.5	$	22.0
Amortization of debt discount		7.1		55.5
Amortization of debt issuance costs		0.6		4.8
Less capitalized interest		—		(1.1	)
Total interest expense related to Convertible Notes	$	10.2	$	81.2

Concurrent with the issuance of the Convertible Notes, we entered into arrangements to buy up to approximately 31.8 million shares of our common stock, at a price of $31.85 per share. During fiscal 2014, concurrent with the repayment and conversion of the Convertible Notes, we exercised the Convertible Note hedges which were net settled for an aggregate of 3.9 million shares from the counterparties. We also entered into separate transactions in which we sold warrants to acquire 39.7 million shares of our common stock at an exercise price of $41.28 per share. During fiscal 2014, 31.9 million warrants were exercised at a weighted-average price of $43.09 and were net settled with 1.1 million shares of our common stock, equal to the difference between the market price on the date of exercise and the exercise price of the warrants on their respective exercise dates, and the remaining warrants expired unexercised.

Credit Facility

In December 2012, we entered into a credit agreement with a syndicated group of lenders that is scheduled to expire on December 21, 2017 and provides for an unsecured $250.0 million revolving credit facility that is comprised of revolving loans, Eurocurrency loans and/or swingline loans. The credit facility includes a $100.0 million foreign currency sub-facility, a $50.0 million letter of credit sub-facility and a $10.0 million swingline sub-facility available on same-day notice. Available borrowings under the credit facility are reduced by the amount of any outstanding borrowings on the sub-facilities. We may also, subject to certain requirements, request an increase in the facility up to an additional $100.0 million and request two additional one-year extensions, subject to certain conditions. The proceeds from the facility may be used by us for general corporate purposes.

Borrowings under the facility, except for swingline loans, accrue interest in arrears at an alternate base rate as defined in the credit agreement or, at our option, an adjusted London Interbank Offered Rate (LIBOR) plus in each case, a spread (based on our public debt ratings and the type of loan) ranging from 0.2% to 1.2%. Swingline borrowings accrue interest at an alternate base rate. In addition, we are required to pay fees to maintain the credit facility, whether or not we have outstanding borrowings. The facility contains financial covenants requiring us to maintain a maximum leverage ratio of not more than 3.0:1.0 and a minimum interest coverage ratio of not less than 3.5:1.0. The facility contains customary affirmative and negative covenants, including covenants that limit our ability to incur debt secured by liens on assets or indebtedness of our subsidiaries and to consolidate, merge or sell all or substantially all of our assets. As of April 24, 2015, no borrowings were outstanding under the facility and we were in compliance with all covenants associated with the facility.

Other Long-Term Financing Arrangements

The following presents the amounts due under other long-term financing arrangements (in millions):

	April 24, 2015			April 25, 2014
Other long-term financing arrangements	$	15.9		$	13.1
Less:  current portion		(9.5	)		(6.6	)
Non-current portion of other long-term financing arrangements	$	6.4		$	6.5

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Stockholders' Equity - Activity Related to Stock Options (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Number of Shares
Beginning balance, Number of Shares	14.5	19.2	20.6
Options granted, Number of Shares	2.2	2.9	2.4
Options exercised, Number of Shares	(4.6)	(6.3)	(3.0)
Options forfeited and expired, Number of Shares	(0.6)	(1.3)	(0.8)
Ending balance, Number of Shares	11.5	14.5	19.2
Options vested and expected to vest, Number of Shares	11.1
Options Exercisable, Number of Shares	7.9
Weighted-Average Exercise Price
Beginning balance, Weighted-Average Exercise Price	$ 34.10	$ 31.27	$ 29.98
Options granted, Weighted-Average Exercise Price	$ 36.64	$ 38.26	$ 28.87
Options exercised, Weighted-Average Exercise Price	$ 25.25	$ 25.83	$ 18.37
Options forfeited and expired, Weighted-Average Exercise Price	$ 42.42	$ 42.47	$ 40.11
Ending balance, Weighted-Average Exercise Price	$ 37.74	$ 34.10	$ 31.27
Options vested and expected to vest, Weighted-Average Exercise Price	$ 37.78
Options Exercisable, Weighted-Average Exercise Price	$ 38.32
Weighted-Average Remaining Contractual Term and Aggregate Intrinsic Value
Outstanding, Weighted-Average Remaining Contractual Term	3 years 8 months 12 days
Options vested and expected to vest, Weighted-Average Remaining Contractual Term	3 years 7 months 17 days
Exercisable, Weighted-Average Remaining Contractual Term	2 years 10 months 21 days
Outstanding, Aggregate Intrinsic Value	$ 29.8
Options vested and expected to vest, Aggregate Intrinsic Value	29.5
Exercisable, Aggregate Intrinsic Value	$ 26.1

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Stockholders' Equity - Accumulated Other Comprehensive Income (Loss) by Component Net of Tax (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 9.1	$ 8.7
OCI before reclassifications, net of tax	(18.3)	(0.7)
Amounts reclassified from AOCI, net of tax	(14.5)	1.1
Other comprehensive income (loss)	(32.8)	0.4	3.8
Ending balance	(23.7)	9.1	8.7
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	5.5	2.0
OCI before reclassifications, net of tax	(28.3)	3.5
Amounts reclassified from AOCI, net of tax	0	0
Other comprehensive income (loss)	(28.3)	3.5
Ending balance	(22.8)	5.5
Defined Benefit Obligation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(4.8)	(5.7)
OCI before reclassifications, net of tax	(7.8)	0.5
Amounts reclassified from AOCI, net of tax	0.2	0.4
Other comprehensive income (loss)	(7.6)	0.9
Ending balance	(12.4)	(4.8)
Unrealized Gains on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	8.9	11.4
OCI before reclassifications, net of tax	2.3	(1.2)
Amounts reclassified from AOCI, net of tax	(0.3)	(1.3)
Other comprehensive income (loss)	2.0	(2.5)
Ending balance	10.9	8.9
Unrealized Gains (Losses) on Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(0.5)	1.0
OCI before reclassifications, net of tax	15.5	(3.5)
Amounts reclassified from AOCI, net of tax	(14.4)	2.0
Other comprehensive income (loss)	1.1	(1.5)
Ending balance	$ 0.6	$ (0.5)

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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Revenues:
Product	$ 3,654.6	$ 3,943.9	$ 4,092.3
Software maintenance	898.6	914.8	893.5
Hardware maintenance and other services	1,569.5	1,466.4	1,346.6
Net revenues	6,122.7	6,325.1	6,332.4
Cost of revenues:
Cost of product	1,656.9	1,777.1	1,959.9
Cost of software maintenance	35.7	30.7	28.3
Cost of hardware maintenance and other services	596.9	598.2	583.1
Total cost of revenues	2,289.5	2,406.0	2,571.3
Gross profit	3,833.2	3,919.1	3,761.1
Operating expenses:
Sales and marketing	1,913.2	1,898.2	1,974.8
Research and development	919.3	917.3	904.2
General and administrative	284.2	281.0	272.6
Restructuring and other charges	0	88.3	0
Acquisition-related expense	0	0	1.7
Total operating expenses	3,116.7	3,184.8	3,153.3
Income from operations	716.5	734.3	607.8
Other income (expense), net	(3.7)	6.4	(41.2)
Income before income taxes	712.8	740.7	566.6
Provision for income taxes	152.9	103.2	61.3
Net income	$ 559.9	$ 637.5	$ 505.3
Net income per share:
Basic	$ 1.77	$ 1.87	$ 1.40
Diluted	$ 1.75	$ 1.83	$ 1.37
Shares used in net income per share calculations:
Basic	315.5	340.3	361.5
Diluted	320.7	347.9	368.0

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Statements of Cash Flows Additional Information

12 Months Ended

Apr. 24, 2015

Supplemental Cash Flow Elements [Abstract]

Statements of Cash Flows Additional Information

4. Statements of Cash Flows Additional Information

Non-cash investing activities and supplemental cash flow information are as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Non-cash Investing Activities:
Reclassification of equity component of Convertible Notes	$	—	$	—	$	62.6
Capital expenditures incurred but not paid	$	12.1	$	18.0	$	20.2
Acquisition of software through long-term financing	$	12.3	$	11.4	$	0.8
Supplemental Cash Flow Information:
Income taxes paid, net of refunds	$	97.4	$	58.1	$	46.7
Interest paid	$	32.7	$	35.2	$	22.8

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Recent Accounting Standards Not Yet Effective

12 Months Ended

Apr. 24, 2015

New Accounting Pronouncements And Changes In Accounting Principles [Abstract]

Recent Accounting Standards Not Yet Effective

3. Recent Accounting Standards Not Yet Effective

In April 2014, the Financial Accounting Standards Board (FASB) issued an ASU that changes the criteria for reporting discontinued operations and expands related disclosure requirements. This accounting standard will be effective for us beginning in our first quarter of fiscal 2016. The effects of this guidance will depend on the nature and significance of discontinued operations occurring after the effective date.

In May 2014, the FASB issued new guidance related to the recognition and reporting of revenue that establishes a comprehensive new revenue recognition model designed to depict the transfer of goods or services to a customer in an amount that reflects the consideration the entity expects to receive in exchange for those goods or services. The guidance allows for the use of either the full or modified retrospective transition method, and the standard will be effective for us in the first quarter of our fiscal year 2018; early adoption is not permitted. We are currently evaluating the impact of this new standard on our consolidated financial statements, as well as which transition method we intend to use.

In April 2015, the FASB issued an ASU to provide guidance to entities on evaluating the accounting for fees paid by a customer in a cloud computing arrangement. This guidance will be effective for us beginning in our first quarter of fiscal 2017 and may be applied prospectively to all arrangements entered into or materially modified after the effective date or retrospectively. Early adoption is permitted. We are currently evaluating the impact of this ASU, as well as which transition method we intend to use, but do not anticipate material impacts on our consolidated financial statements upon adoption.

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Net Income per Share

12 Months Ended

Apr. 24, 2015

Earnings Per Share [Abstract]

Net Income per Share

15. Net Income per Share

The following is a calculation of basic and diluted net income per share (in millions, except per share amounts):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Numerator:
Net income	$	559.9	$	637.5	$	505.3
Denominator:
Shares used in basic computation		315.5		340.3		361.5
Dilutive impact of employee equity award plans		5.2		6.9		5.4
Dilutive impact of assumed conversion of Convertible Notes		—		0.5		1.1
Dilutive impact of warrants		—		0.2		—
Shares used in diluted computation		320.7		347.9		368.0
Net Income per Share:
Basic	$	1.77	$	1.87	$	1.40
Diluted	$	1.75	$	1.83	$	1.37

The following potential weighted-average shares of common stock have been excluded from the diluted net income per share calculations, as their effect would have been anti-dilutive (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Employee equity award plans		7.8		6.4		15.1

Dilutive shares outstanding during fiscal 2013 do not include any effect resulting from warrants, as their impact would have been anti-dilutive.

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Stockholders' Equity

12 Months Ended

Apr. 24, 2015

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stockholders' Equity

11. Stockholders’ Equity

Equity Incentive Programs

The 1999 Plan — As most recently amended on September 5, 2014, the 1999 Stock Option Plan (the Plan) comprises five separate equity incentive programs: (i) the Discretionary Option Grant Program under which options may be granted to eligible individuals at a fixed price per share; (ii) the Stock Appreciation Rights Program under which eligible persons may be granted stock appreciation rights that allow individuals to receive the appreciation in fair market value of the shares; (iii) the Stock Issuance Program under which eligible individuals may be issued shares of common stock directly; (iv) the Performance Share and Performance Unit Program (also known as RSUs) under which eligible persons may be granted performance shares or performance units which result in payment to the participant only if performance goals or other vesting criteria are achieved and (v) the Automatic Award Program under which nonemployee board members automatically receive equity grants at designated intervals over their period of board service. The Plan expires in August 2019.

Under the Plan, the Board of Directors may grant to employees, nonemployee directors, consultants and independent advisors options to purchase shares of our common stock during their period of service. The exercise price for an incentive stock option and a nonstatutory option cannot be less than 100% of the fair market value of the common stock on the grant date. Options granted under the Plan generally vest over a four-year period. Options granted generally have a term of seven years after the grant date, subject to earlier termination upon the occurrence of certain events. The Plan prohibits the repricing of any outstanding stock option or stock appreciation right after it has been granted or to cancel any outstanding stock option or stock appreciation right and immediately replace it with a new stock option or stock appreciation right with a lower exercise price unless approved by stockholders. RSUs granted under the Plan generally vest over a four-year period with 25% vesting on each anniversary of the grant date. The Compensation Committee of the Board of Directors has the discretion to use different vesting schedules.

Under the Plan, the number of shares reserved for issuance is reduced by two shares for every share subject to a full value award, which are specified to be grants that are in the form of performance shares and/or performance unit awards, stock, restricted stock, restricted stock units. The Plan (i) limits the number of shares that may be granted pursuant to awards under the Stock Issuance Program to a participant in any calendar year to 1 million, (ii) limits the initial value of performance units a participant may receive to not more than $5 million and (iii) limits the number of performance shares a participant may receive in a calendar year to 1 million.

During fiscal 2015, the shares reserved for issuance under the plan were increased by 7.5 million shares. As of April 24, 2015, 12.7 million shares were available for grant under our equity incentive plans.

Stock Options

The following table summarizes activity related to our stock options (in millions, except for exercise price and contractual term):

	Number of Shares			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value
Outstanding at April 27, 2012		20.6		$	29.98
Granted		2.4		$	28.87
Exercised		(3.0	)	$	18.37
Forfeited and expired		(0.8	)	$	40.11
Outstanding at April 26, 2013		19.2		$	31.27
Granted		2.9		$	38.26
Exercised		(6.3	)	$	25.83
Forfeited and expired		(1.3	)	$	42.47
Outstanding as of April 25, 2014		14.5		$	34.10
Granted		2.2		$	36.64
Exercised		(4.6	)	$	25.25
Forfeited and expired		(0.6	)	$	42.42
Outstanding as of April 24, 2015		11.5		$	37.74		3.70	$	29.8
Vested and expected to vest as of April 24, 2015		11.1		$	37.78		3.63	$	29.5
Exercisable as of April 24, 2015		7.9		$	38.32		2.89	$	26.1

The aggregate intrinsic value represents the pre-tax difference between the exercise price of stock options and the quoted market price of our stock on that day for all in-the-money options.

Additional information related to our stock options is summarized below (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Intrinsic value of exercises	$	69.9	$	90.7	$	46.1
Proceeds received from exercises	$	116.6	$	163.7	$	56.5
Fair value of options vested	$	33.4	$	45.3	$	55.9

Restricted Stock Units

The following table summarizes activity related to our RSUs (in millions, except for fair value):

	Number of Shares			Weighted- Average Grant Date Fair Value
Outstanding at April 27, 2012		12.0		$	43.28
Granted		6.0		$	29.94
Vested		(4.0	)	$	39.83
Forfeited		(1.2	)	$	40.95
Outstanding at April 26, 2013		12.8		$	38.36
Granted		6.5		$	38.61
Vested		(4.5	)	$	38.48
Forfeited		(1.6	)	$	39.08
Outstanding as of April 25, 2014		13.2		$	38.35
Granted		6.5		$	35.80
Vested		(4.7	)	$	40.14
Forfeited		(1.7	)	$	37.48
Outstanding as of April 24, 2015		13.3		$	36.58

RSUs are converted into common stock upon vesting. We primarily use the net share settlement approach upon vesting, where a portion of the shares are withheld as settlement of statutory employee withholding taxes, which decreases the shares issued to the employee by a corresponding value. The number and value of the shares netted for employee taxes are summarized in the table below (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Shares withheld for taxes		1.5		1.5		1.3
Fair value of shares withheld	$	56.8	$	57.7	$	40.9

Employee Stock Purchase Plan

Eligible employees are offered shares through a 24-month offering period, which consists of four consecutive 6-month purchase periods. Employees may purchase a limited number of shares of the Company’s stock at a discount of up to 15% of the lesser of the market value at the beginning of the offering period or the end of each 6-month purchase period. On September 5, 2014, the ESPP was amended to increase the shares reserved for issuance by 5.0 million shares of common stock. As of April 24, 2015, 8.9 million shares were available for issuance. The following table summarizes activity related to the purchase rights issued under the ESPP (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Shares issued under the ESPP		3.4		3.8		3.8
Proceeds from issuance of shares	$	97.1	$	95.5	$	95.0

Stock-Based Compensation Expense

Stock-based compensation expense is included in the consolidated statements of operations as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Cost of product revenues	$	5.8	$	5.6	$	6.1
Cost of hardware maintenance and other services revenues		16.0		16.7		19.4
Sales and marketing		116.5		125.0		132.2
Research and development		84.1		87.7		84.1
General and administrative		36.9		38.0		34.8
Total stock-based compensation expense	$	259.3	$	273.0	$	276.6

As of April 24, 2015, total unrecognized compensation expense related to our equity awards was $358.7 million, which is expected to be recognized on a straight-line basis over a weighted-average remaining service period of 2.2 years.

Total income tax benefit associated with employee stock transactions and recognized in stockholders’ equity were as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Income tax benefit associated with employee stock transactions	$	56.9	$	40.5	$	53.8

Valuation Assumptions

The valuation of stock options, RSUs and ESPP purchase rights and the underlying weighted-average assumptions are summarized as follows:

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Stock options:
Expected term in years		4.8			4.8			4.8
Risk-free interest rate		1.6	%		1.1	%		0.6	%
Expected volatility		29	%		34	%		41	%
Expected dividend yield		1.8	%		1.6	%		—	%
Weighted-average fair value per share granted	$	8.24		$	9.85		$	11.52
RSUs:
Risk-free interest rate		0.6	%		0.5	%	N/A
Expected dividend yield		1.8	%		1.6	%		—	%
Weighted-average fair value per share granted	$	35.80		$	38.61		$	29.94
ESPP:
Expected term in years		1.3			1.2			1.2
Risk-free interest rate		0.2	%		0.2	%		0.2	%
Expected volatility		27	%		31	%		40	%
Expected dividend yield		1.8	%		1.6	%		—	%
Weighted-average fair value per right granted	$	9.81		$	10.83		$	10.36

N/A - Not Applicable

Stock Repurchase Program

As of April 24, 2015, our Board of Directors has authorized the repurchase of up to $9.6 billion of our common stock, including a $2.5 billion increase approved by our Board of Directors in fiscal 2015. Under this program, which we may suspend or discontinue at any time, we may purchase shares of our outstanding common stock through open market and privately negotiated transactions at prices deemed appropriate by our management.

The following table summarizes activity related to this program (in millions, except per share information):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Number of shares repurchased		29.6		47.3		18.1
Average price per share	$	39.30	$	39.78	$	32.68
Aggregate purchase price	$	1,165.2	$	1,881.5	$	590.0
Remaining authorization at end of period	$	2,459.5	$	1,124.8	$	1,406.3

The aggregate purchase price of our stock repurchases for fiscal 2015 consisted of $1,165.2 million of open market purchases, of which, $812.8 million and $352.4 million was allocated to additional paid-in capital and retained earnings, respectively.

Since the May 13, 2003 inception of our stock repurchase program through April 24, 2015, we repurchased a total of 214.0 million shares of our common stock at an average price of $33.48 per share, for an aggregate purchase price of $7.2 billion.

Accelerated Share Repurchase Agreement

In fiscal 2014, we entered into a collared Accelerated Share Repurchase (ASR) with a third party under which we prepaid $750.0 million to purchase shares of our common stock. The aggregate number of shares ultimately purchased was determined based on the volume weighted-average share price of our common stock over a specified period of time. This contract settled in fiscal 2014, resulting in the repurchase of 19.2 million shares, at an average price per share of $39.13. The value of the ASR forward contract was determined to be $13.9 million, which was recorded as additional paid-in capital.

Preferred Stock

Our Board of Directors has the authority to issue up to 5.0 million shares of preferred stock and to determine the price, rights, preferences, privileges, and restrictions, including voting rights, of those shares without any further vote or action by the stockholders. No shares of preferred stock were issued or outstanding in any period presented.

Dividends

The following is a summary of our fiscal 2015 and 2014 activities related to dividends on our common stock (in millions, except per share amounts). No dividends were declared or paid in fiscal 2013.

	Year Ended
	April 24, 2015		April 25, 2014
Dividends per share declared	$	0.66	$	0.60
Dividend payments allocated to additional paid-in capital	$	52.0	$	50.4
Dividend payments allocated to retained earnings	$	155.4	$	151.9

On May 20, 2015, we declared a cash dividend of $0.18 per share of common stock, payable on July 23, 2015 to holders of record as of the close of business on July 10, 2015. The timing and amount of future dividends will depend on market conditions, corporate business and financial considerations and regulatory requirements. All dividends declared have been determined by the Company to be legally authorized under the laws of the state in which we are incorporated.

Accumulated Other Comprehensive Income (Loss)

Changes in AOCI by component, net of tax, are summarized below (in millions):

	Foreign Currency Translation Adjustments			Defined Benefit Obligation Adjustments			Unrealized Gains on Available- for-Sale Securities			Unrealized Gains (Losses) on Derivatives Instruments			Total
Balance as of April 26, 2013	$	2.0		$	(5.7	)	$	11.4		$	1.0		$	8.7
OCI before reclassifications, net of tax		3.5			0.5			(1.2	)		(3.5	)		(0.7	)
Amounts reclassified from AOCI, net of tax		—			0.4			(1.3	)		2.0			1.1
Total OCI		3.5			0.9			(2.5	)		(1.5	)		0.4
Balance as of April 25, 2014		5.5			(4.8	)		8.9			(0.5	)		9.1
OCI before reclassifications, net of tax		(28.3	)		(7.8	)		2.3			15.5			(18.3	)
Amounts reclassified from AOCI, net of tax		—			0.2			(0.3	)		(14.4	)		(14.5	)
Total OCI		(28.3	)		(7.6	)		2.0			1.1			(32.8	)
Balance as of April 24, 2015	$	(22.8	)	$	(12.4	)	$	10.9		$	0.6		$	(23.7	)

The amounts reclassified out of AOCI are as follows (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
	Amounts Reclassified from AOCI									Statements of Operations Location
Recognized losses on defined benefit     obligations	$	0.2		$	0.4		$	—		Operating expenses
Realized gains on available-for-sale     securities		(0.3	)		(1.3	)		(0.6	)	Other income (expense), net
Realized (gains) losses on cash flow hedges		(14.4	)		2.0			(2.2	)	Net revenues
Total reclassifications	$	(14.5	)	$	1.1		$	(2.8	)

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Stockholders' Equity - Schedule of Employee Stock Purchase Plan ESPP (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued under the ESPP	3.4	3.8	3.8
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Proceeds from issuance of shares	97.1	95.5	95.0

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Balance Sheet Details

12 Months Ended

Apr. 24, 2015

Statement Of Financial Position [Abstract]

Balance Sheet Details

7. Balance Sheet Details

Cash and cash equivalents (in millions):

	April 24, 2015		April 25, 2014
Cash	$	1,666.3	$	2,174.0
Cash equivalents		255.2		117.0
Cash and cash equivalents	$	1,921.5	$	2,291.0

Inventories (in millions):

	April 24, 2015		April 25, 2014
Purchased components	$	36.2	$	17.6
Finished goods		110.3		104.8
Inventories	$	146.5	$	122.4

Other current assets (in millions):

	April 24, 2015		April 25, 2014
Prepaid expenses and other current assets	$	268.3	$	219.4
Deferred tax assets		253.5		270.3
Other current assets	$	521.8	$	489.7

Property and equipment, net (in millions):

	April 24, 2015			April 25, 2014
Land	$	265.5		$	265.7
Buildings and improvements		607.0			541.7
Leasehold improvements		106.6			102.9
Computer, production, engineering and other equipment		753.7			753.8
Computer software		371.9			369.1
Furniture and fixtures		85.4			86.4
Construction-in-progress		33.0			72.9
		2,223.1			2,192.5
Accumulated depreciation and amortization		(1,193.2	)		(1,083.7	)
Property and equipment, net	$	1,029.9		$	1,108.8

The net book value of computer software, which includes capitalized internal-use software development costs, is summarized below (in millions):

	April 24, 2015		April 25, 2014
Computer software	$	58.5	$	103.5

Depreciation and amortization expense related to property and equipment, net is summarized below (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Depreciation and amortization expense	$	243.5	$	275.0	$	258.8

Included in depreciation and amortization expense above is amortization related to computer software, as summarized below (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
Computer software amortization expense	$	84.6	$	74.4	$	76.7

Other non-current assets (in millions):

	April 24, 2015		April 25, 2014
Auction rate securities	$	—	$	36.0
Deferred tax assets		255.9		245.0
Other assets		225.1		243.1
Other non-current assets	$	481.0	$	524.1

Accrued expenses (in millions):

	April 24, 2015		April 25, 2014
Accrued compensation and benefits	$	358.8	$	407.8
Product warranty liability		57.8		73.0
Other current liabilities		284.8		313.0
Accrued expenses	$	701.4	$	793.8

Product warranty liabilities:

Equipment and software systems sales include a standard product warranty. The following tables summarize the activity related to product warranty liabilities and their balances as reported in our consolidated balance sheets (in millions):

	Year Ended
	April 24, 2015			April 25, 2014
Balance at beginning of year	$	110.0		$	117.2
Expense accrued during the year		35.2			70.2
Warranty costs incurred		(59.5	)		(77.4	)
Balance at end of year	$	85.7		$	110.0

	April 24, 2015		April 25, 2014
Accrued expenses	$	57.8	$	73.0
Other long-term liabilities		27.9		37.0
Total warranty liabilities	$	85.7	$	110.0

Warranty expense accrued during the period includes amounts accrued for systems at the time of shipment, adjustments for changes in estimated costs for warranties on systems shipped in the period and changes in estimated costs for warranties on systems shipped in prior periods.

Short-term and long-term deferred revenue (in millions):

	April 24, 2015		April 25, 2014
Product	$	17.4	$	23.4
Services		3,179.8		3,076.8
Total	$	3,197.2	$	3,100.2
Reported as:
Short-term	$	1,724.2	$	1,653.8
Long-term		1,473.0		1,446.4
Total	$	3,197.2	$	3,100.2

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Balance Sheet Details - Computer Software Net Book Value (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Property Plant And Equipment [Abstract]
Computer software	$ 58.5	$ 103.5

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Segment Geographic and Significant Customer Information - Significant Customers (Detail) (Net Revenue, Customer Concentration Risk)	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Arrow Electronics, Inc.
Segment Reporting Information [Line Items]
Percentage of net revenues	23.00%	22.00%	19.00%
Avnet, Inc.
Segment Reporting Information [Line Items]
Percentage of net revenues	16.00%	16.00%	15.00%

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Business Combinations

12 Months Ended

Apr. 24, 2015

Business Combinations [Abstract]

Business Combinations

5. Business Combinations

Fiscal 2015 Acquisitions

On October 27, 2014, we completed the acquisition of certain assets related to Riverbed Technology, Inc.’s SteelStore product line for $79.1 million in cash. The SteelStore product line supports leading backup applications and cloud providers so that customers have a choice in how they extend their existing data protection infrastructure into the cloud.

In addition, on the same date, we acquired certain intangible assets from a privately-held software developer for $5.5 million in cash.

The preliminary fair values of assets acquired and liabilities assumed as of the closing date are summarized as follows (in millions):

Prepaid expenses and other current assets	$	2.7
Finite-lived intangible assets		31.8
Goodwill		39.3
Deferred income taxes		10.8
Other non-current assets		1.1
Total assets acquired		85.7
Deferred revenue		(1.1	)
Total purchase price	$	84.6

The results of operations related to these acquisitions have been included in our consolidated statements of operations from the acquisition date. Pro forma results of operations have not been presented because the acquisitions were not material to our results of operations.

Fiscal 2013 Acquisitions

Consideration related to our fiscal 2013 acquisitions consisted of the following (in millions):

Cash	$	106.9
Equity		1.2
Total purchase price	$	108.1

The allocation of the purchase consideration for business combinations completed in fiscal 2013 is summarized as follows (in millions):

Net liabilities assumed	$	(5.1	)
Finite-lived intangible assets		30.3
Goodwill		82.9
Total purchase price	$	108.1

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Goodwill and Purchased Intangible Assets, Net

12 Months Ended

Apr. 24, 2015

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Purchased Intangible Assets, Net

6. Goodwill and Purchased Intangible Assets, Net

Goodwill activity is summarized as follows (in millions):

Balance as of April 26, 2013	$	988.1
Goodwill acquired		—
Balance as of April 25, 2014		988.1
Goodwill acquired		39.3
Balance as of April 24, 2015	$	1,027.4

We conducted our annual goodwill impairment test during the fourth quarter of fiscal 2015. Based on this analysis, we determined that there was no impairment to goodwill. We will continue to monitor our recorded goodwill for indicators of impairment.

Purchased intangible assets, net are summarized below (in millions):

	April 24, 2015							April 25, 2014
	Gross		Accumulated			Net		Gross		Accumulated			Net
	Assets		Amortization			Assets		Assets		Amortization			Assets
Developed technology	$	312.4	$	(225.2	)	$	87.2	$	283.0	$	(162.6	)	$	120.4
Customer contracts/relationships		5.0		(2.7	)		2.3		9.6		(9.0	)		0.6
Other purchased intangibles		2.9		(2.9	)		—		4.5		(4.0	)		0.5
Total purchased intangible assets	$	320.3	$	(230.8	)	$	89.5	$	297.1	$	(175.6	)	$	121.5

Amortization expense for purchased intangible assets is summarized below (in millions):

	Year Ended						Statement of
	April 24, 2015		April 25, 2014		April 26, 2013		Operations Classifications
Developed technology	$	62.6	$	57.1	$	55.9	Cost of revenues
Customer contracts/relationships		0.7		1.0		25.2	Operating expenses
Other purchased intangibles		0.4		1.0		4.7	Operating expenses
Total	$	63.7	$	59.1	$	85.8

As of April 24, 2015, future amortization expense related to purchased intangible assets is as follows (in millions):

Fiscal Year	Amount
2016	$	58.4
2017		13.9
2018		9.4
2019		5.2
2020		2.6
Total	$	89.5

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Other Income Expense

12 Months Ended

Apr. 24, 2015

Nonoperating Income Expense [Abstract]

Other Income (Expense),Net

8. Other income (expense), net

Other income (expense), net consists of the following (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Interest income	$	36.6		$	34.9		$	42.2
Interest expense		(42.0	)		(36.1	)		(91.7	)
Other income, net		1.7			7.6			8.3
Total other income (expense), net	$	(3.7	)	$	6.4		$	(41.2	)

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Balance Sheet Details - Accrued expenses (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Payables And Accruals [Abstract]
Accrued compensation and benefits	$ 358.8	$ 407.8
Product warranty liability	57.8	73.0
Other current liabilities	284.8	313.0
Accrued expenses	$ 701.4	$ 793.8

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Stockholders' Equity - Stock-Based Compensation Expense (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 259.3	$ 273.0	$ 276.6
Cost of Product Revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	5.8	5.6	6.1
Cost of Hardware Maintenance and Other Services Revenues
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	16.0	16.7	19.4
Sales and Marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	116.5	125.0	132.2
Research and Development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	84.1	87.7	84.1
General and Administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 36.9	$ 38.0	$ 34.8

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Balance Sheet Details - Deferred Revenue (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Deferred Revenue Arrangement [Line Items]
Short-term	$ 1,724.2	$ 1,653.8
Long-term	1,473.0	1,446.4
Short-term and long-term deferred revenue, Total	3,197.2	3,100.2
Product
Deferred Revenue Arrangement [Line Items]
Short-term and long-term deferred revenue, Total	17.4	23.4
Services
Deferred Revenue Arrangement [Line Items]
Short-term and long-term deferred revenue, Total	$ 3,179.8	$ 3,076.8

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Income Taxes - Unrecognized Tax Benefits (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Income Tax Disclosure [Abstract]
Balance at beginning of period	$ 235.9	$ 189.6	$ 161.0
Additions based on tax positions related to the current year	21.7	26.9	34.5
Additions for tax positions of prior years	101.2	23.8	1.0
Decreases for tax positions of prior years	(29.3)	(4.4)	(6.9)
Settlements	(57.6)	0	0
Balance at end of period	$ 271.9	$ 235.9	$ 189.6

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Balance Sheet Details - Other Non-Current Assets (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Auction rate securities	$ 0	$ 36.0
Deferred tax assets	255.9	245.0
Other assets	225.1	243.1
Other non-current assets	$ 481.0	$ 524.1

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Derivatives and Hedging Activities - Schedule of Notional Value of Outstanding Foreign Currency Forward Contracts (Detail) (United States of America, Dollars, USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Cash Flow Hedging | Long
Derivative [Line Items]
Forward contracts, Notional Amount	$ 93.6	$ 122.6
Non Designated | Long
Derivative [Line Items]
Forward contracts, Notional Amount	231.2	389.9
Non Designated | Short
Derivative [Line Items]
Forward contracts, Notional Amount	$ 160.2	$ 155.5

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Financial Instruments and Fair Value Measurements (Tables)

12 Months Ended

Apr. 24, 2015

Investments Debt And Equity Securities [Abstract]

Summary of Investments

The following is a summary of our investments (in millions):

	April 24, 2015									April 25, 2014
	Cost or							Estimated		Cost or							Estimated
	Amortized		Gross Unrealized					Fair		Amortized		Gross Unrealized					Fair
	Cost		Gains		Losses			Value		Cost		Gains		Losses			Value
Corporate bonds	$	2,249.4	$	8.7	$	(0.5	)		2,257.6	$	2,142.3	$	10.5	$	(0.5	)	$	2,152.3
U.S. Treasury and government debt    securities		1,055.7		2.5		—			1,058.2		263.4		0.3		(0.1	)		263.6
Foreign government debt securities		37.7		0.2		—			37.9		—		—		—			—
Commercial paper		20.0		—		—			20.0		168.4		—		—			168.4
Certificates of deposit		286.2		—		—			286.2		245.0		—		—			245.0
Auction rate securities		—		—		—			—		36.9		—		(0.9	)		36.0
Mutual funds		32.2		—		—			32.2		32.7		—		—			32.7
Total debt and equity securities	$	3,681.2	$	11.4	$	(0.5	)	$	3,692.1	$	2,888.7	$	10.8	$	(1.5	)	$	2,898.0

Schedule of Gross Unrealized Losses and Fair Values of Investments

As of April 24, 2015, gross unrealized losses related to individual securities were not significant. The following table shows the gross unrealized losses and estimated fair values of our available-for-sale investments with gross unrealized losses and the length of time that individual securities have been in continuous unrealized loss positions as of April 25, 2014 (in millions):

	April 25, 2014
	Less than 12 Months					12 Months or Greater					Total
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate bonds	$	233.1	$	(0.5	)	$	—	$	—		$	233.1	$	(0.5	)
U.S. Treasury and government debt securities		63.0		(0.1	)		—		—			63.0		(0.1	)
Auction rate securities		—		—			36.0		(0.9	)		36.0		(0.9	)
Total	$	296.1	$	(0.6	)	$	36.0	$	(0.9	)	$	332.1	$	(1.5	)

Contractual Maturities of Debt Investments

The following table presents the contractual maturities of our debt investments as of April 24, 2015 (in millions):

	Amortized Cost		Fair Value
Due in one year or less	$	1,437.8	$	1,440.2
Due after one year through five years		2,211.2		2,219.7
	$	3,649.0	$	3,659.9

Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table summarizes our financial assets and liabilities measured at fair value on a recurring basis (in millions):

	April 24, 2015
				Fair Value Measurements at Reporting Date Using
	Total			Level 1		Level 2
Cash	$	1,666.3		$	1,666.3	$	—
Corporate bonds		2,257.6			—		2,257.6
U.S. Treasury and government debt securities		1,058.2			145.6		912.6
Foreign government debt securities		37.9			—		37.9
Commercial paper		20.0			—		20.0
Certificates of deposit		286.2			—		286.2
Total cash, cash equivalents and short-term investments	$	5,326.2		$	1,811.9	$	3,514.3
Other items:
Mutual funds(1)	$	2.8		$	2.8	$	—
Mutual funds(2)	$	29.4		$	29.4	$	—
Foreign currency exchange contracts assets(1)	$	3.4		$	—	$	3.4
Long-term debt	$	(1,523.6	)	$	—	$	(1,523.6	)

	April 25, 2014
				Fair Value Measurements at Reporting Date Using
	Total			Level 1		Level 2			Level 3
Cash	$	2,174.0		$	2,174.0	$	—		$	—
Corporate bonds		2,152.3			—		2,152.3			—
U.S. Treasury and government debt securities		263.6			185.1		78.5			—
Commercial paper		168.4			—		168.4			—
Certificates of deposit		245.0			—		245.0			—
Total cash, cash equivalents and short-term investments	$	5,003.3		$	2,359.1	$	2,644.2		$	—
Other items:
Auction rate securities(2)	$	36.0		$	—	$	—		$	36.0
Mutual funds(1)	$	6.4		$	6.4	$	—		$	—
Mutual funds(2)	$	26.3		$	26.3	$	—		$	—
Foreign currency exchange contracts assets(1)	$	0.4		$	—	$	0.4		$	—
Foreign currency exchange contracts liabilities(3)	$	(1.9	)	$	—	$	(1.9	)	$	—
Long-term debt	$	(1,000.0	)	$	—	$	(1,000.0	)	$	—

⁽¹⁾ Reported as other current assets in the consolidated balance sheets

⁽²⁾ Reported as other non-current assets in the consolidated balance sheets

⁽³⁾ Reported as accrued expenses in the consolidated balance sheets

Quantitative Information About Level 3 Fair Value Measurements

Quantitative information about our Level 3 fair value measurements as of April 24, 2014 for our ARSs is as follows:

	Estimated Fair Value as of April 25, 2014 (in millions)		Valuation Techniques	Unobservable Inputs	Range (Weighted average)
ARSs	$	36.0	Discounted cash flow	Time-to-economic maturity	6.7 yrs - 10.0 yrs (8.2 yrs)
				Illiquidity premium	1.1% - 2.8% (1.8%)
				Coupon rate	1.1% - 2.7% (1.8%)
			Market comparable securities	Discount rate	1.0% - 5.0% (2.4%)

Reconciliation of Beginning and Ending Balance of Level 3 Auction Rate Securities Measured at Fair Value on Recurring Basis

The table below provides a reconciliation of the beginning and ending balance of our Level 3 ARSs measured at fair value on a recurring basis using significant unobservable inputs (in millions):

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Balance at beginning of year	$	36.0		$	42.0		$	51.0
Total unrealized gains, net included in other comprehensive    income (loss)		0.9			1.3			0.5
Total realized gains included in earnings		—			0.7			1.1
Sales		(10.0	)		(8.0	)		—
Settlements		(26.9	)		—			(10.6	)
Balance at end of year	$	—		$	36.0		$	42.0

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Goodwill and Purchased Intangible Assets, Net - Schedule of Goodwill Activity (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014
Goodwill And Intangible Assets Disclosure [Abstract]
Beginning balance	$ 988.1	$ 988.1
Goodwill acquired	39.3	0
Ending balance	$ 1,027.4	$ 988.1

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Restructuring and Other Charges

12 Months Ended

Apr. 24, 2015

Restructuring And Related Activities [Abstract]

Restructuring and Other Charges

13. Restructuring and Other Charges

In May 2013, we initiated a business restructuring plan under which we realigned internal resources, resulting in a reduction of our global workforce of approximately 7%. Such activities were completed in the year ended April 25, 2014. In March 2014, we initiated a business realignment plan designed to focus our resources on key strategic initiatives and streamline our business in light of the constrained information technology spending environment, resulting in a reduction of our global workforce of approximately 4%. Such activities were completed in the year ended April 24, 2015. Restructuring and other charges consisted primarily of employee severance-related costs.

Activities related to these plans are summarized as follows (in millions):

	March 2014 Plan			May 2013 Plan			Total
Balance as of April 26, 2013	$	—		$	—		$	—
Net charges		38.8			49.5			88.3
Cash payments		(12.3	)		(49.5	)		(61.8	)
Balance as of April 25, 2014		26.5			—			26.5
Net charges		—			—			—
Cash payments		(26.5	)		—			(26.5	)
Balance as of April 24, 2015	$	—		$	—		$	—

Liabilities for our restructuring plans were included in accrued expenses in our consolidated balance sheets.

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Employee Benefits and Deferred Compensation - Schedule of Defined Benefit Plans (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Compensation And Retirement Disclosure [Abstract]
Fair value of plan assets	$ 19.7	$ 18.7
Benefit obligations	(60.2)	(45.7)
Unfunded obligations	$ (40.5)	$ (27.0)

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Commitments and Contingencies

12 Months Ended

Apr. 24, 2015

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

18. Commitments and Contingencies

Operating Leases

We lease various equipment, vehicles and office space in the U.S. and internationally.

Future annual minimum lease payments under all non-cancelable operating leases with an initial term in excess of one year as of April 24, 2015 are as follows (in millions):

		2016		2017		2018		2019		2020	Thereafter		Total
Operating lease commitments	$	61.9	$	44.0	$	29.6	$	21.0	$	17.3	$	31.7	$	205.5

Rent expense under all cancellable and non-cancelable operating leases was $67.0 million, $65.5 million and $64.9 million in fiscal 2015, 2014 and 2013, respectively.

Purchase Orders and Other Commitments

In the ordinary course of business, we make commitments to third-party contract manufacturers, to manage manufacturer lead times and meet product forecasts, and to other parties, to purchase various key components used in the manufacture of our products. We establish accruals for estimated losses on non-cancellable purchase commitments for components to the extent we believe it is probable that such components will not be utilized in future operations. To the extent that such forecasts are not achieved, our commitments and associated accruals may change. As of April 24, 2015, we had $295.0 million in non-cancelable purchase commitments with our contract manufacturers. In addition, we recorded a liability for firm, non-cancelable and unconditional purchase commitments with contract manufacturers for quantities in excess of our future demand forecasts through a charge to cost of product revenues. As of April 24, 2015 and April 25, 2014, such liability amounted to $16.9 million and $11.5 million, respectively, and is included in accrued expenses in our consolidated balance sheets.

In addition to commitments with contract manufacturers and component suppliers, we have open purchase orders and construction related obligations associated with our ordinary course of business for which we have not received goods or services. As of April 24, 2015, we had $60.0 million in construction related obligations and $211.0 million in other purchase obligations.

During the ordinary course of business, we provide standby letters of credit or other guarantee instruments to third parties as required for certain transactions initiated either by us or our subsidiaries. As of April 24, 2015, our financial guarantees of $9.3 million that were not recorded on our consolidated balance sheets consisted primarily of standby letters of credit and surety bonds.

Financing Guarantees

Some of our customers have entered into recourse and non-recourse financing leasing arrangements using third-party financing companies, and in some situations, we enter into customer financing arrangements for our products and services that are contemporaneously sold on a recourse or non-recourse basis to third-party financing companies. Under the terms of recourse leases, which are generally three years or less, we remain liable for the aggregate unpaid remaining lease payments to the third-party leasing companies in the event of end-user customer default. These arrangements are generally collateralized by a security interest in the underlying assets. Under the terms of the non-recourse leases, we do not have any continuing obligations or liabilities to the third-party financing companies. Where we provide a guarantee for recourse leases, we defer revenues subject to the industry-specific software revenue recognition guidance, and recognize revenues for non-software deliverables in accordance with our multiple deliverable revenue arrangement policy. In connection with certain recourse financing arrangements, we receive advance payments associated with undelivered elements that are subject to customer refund rights. We defer revenue associated with these advance payments until the related refund rights expire and we perform the services. As of April 24, 2015 and April 25, 2014, the aggregate amount by which such contingencies exceeded the associated deferred revenue was not significant. To date, we have not experienced material losses under our lease financing programs or other financing arrangements.

Indemnification Agreements

We enter into standard indemnification agreements in the ordinary course of business. Pursuant to these agreements, we agree to defend and indemnify other parties, primarily our customers or business partners or subcontractors, for damages and reasonable costs incurred in any suit or claim brought against them alleging that our products sold to them infringe any U.S. patent, copyright, trade secret, or similar right. If a product becomes the subject of an infringement claim, we may, at our option: (i) replace the product with another non-infringing product that provides substantially similar performance; (ii) modify the infringing product so that it no longer infringes but remains functionally equivalent; (iii) obtain the right for the customer to continue using the product at our expense and for the reseller to continue selling the product; (iv) take back the infringing product and refund to the customer the purchase price paid less depreciation amortized on a straight-line basis. We have not been required to make material payments pursuant to these provisions historically. We have not recorded any liability at April 24, 2015 related to these guarantees since the maximum amount of potential future payments under such guarantees, indemnities and warranties is not determinable, other than as described above.

Legal Contingencies

When a loss is considered probable and reasonably estimable, we record a liability in the amount of our best estimate for the ultimate loss. However, the likelihood of a loss with respect to a particular contingency is often difficult to predict and determining a meaningful estimate of the loss or a range of loss may not be practicable based on the information available and the potential effect of future events and decisions by third parties that will determine the ultimate resolution of the contingency.

We are subject to various legal proceedings and claims that arise in the normal course of business. No accrual has been recorded as of April 24, 2015 related to such matters as they are not probable and/or reasonably estimable.

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Restructuring and Other Charges - Activities Related to Restructuring Reserves (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period	$ 26.5	$ 0
Net charges	0	88.3	0
Cash payments	(26.5)	(61.8)
Balance at end of period	0	26.5	0
March 2014 Restructuring
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period	26.5	0
Net charges	0	38.8
Cash payments	(26.5)	(12.3)
Balance at end of period	0	26.5
May 2013 Restructuring
Restructuring Cost and Reserve [Line Items]
Balance at beginning of period	0	0
Net charges	0	49.5
Cash payments	0	(49.5)
Balance at end of period	$ 0	$ 0

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Business Combinations - Consideration Related to Fiscal 2013 Acquisitions (Detail) (Fiscal 2013 Acquisitions, USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 26, 2013
Fiscal 2013 Acquisitions
Business Acquisition [Line Items]
Cash	$ 106.9
Equity	1.2
Total purchase price	$ 108.1

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Net Income per Share - Anti-Dilutive Shares Excluded from Calculation of Net Income Per Share (Detail) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Earnings Per Share [Abstract]
Employee equity award plans	7.8	6.4	15.1

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Segment, Geographic, and Significant Customer Information (Tables)

12 Months Ended

Apr. 24, 2015

Segment Reporting [Abstract]

Schedule of Revenues by Geographic Region

Summarized revenues by geographic region based on information from our internal management system and utilized by our Chief Executive Officer, who is considered our Chief Operating Decision Maker, is as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
United States, Canada and Latin America (Americas)	$	3,446.8	$	3,513.3	$	3,552.5
Europe, Middle East and Africa (EMEA)		1,857.4		1,954.6		1,928.8
Asia Pacific (APAC)		818.5		857.2		851.1
Net revenues	$	6,122.7	$	6,325.1	$	6,332.4

Schedule of Cash, Cash Equivalents and Short-Term Investments

The following table presents cash, cash equivalents and short-term investments held in the U.S. and internationally in various foreign subsidiaries (in millions):

	April 24, 2015		April 25, 2014
U.S.	$	596.2	$	681.8
International		4,730.0		4,321.5
Total	$	5,326.2	$	5,003.3

Schedule of Property and Equipment, Net by Geographic Areas

The following table presents property and equipment information for geographic areas based on the physical location of the assets (in millions):

	April 24, 2015		April 25, 2014
U.S.	$	926.9	$	1,021.4
International		103.0		87.4
Total	$	1,029.9	$	1,108.8

Schedule of Revenues from Significant Customers

The following customers, each of which is a distributor, accounted for 10% or more of our net revenues:

	Year Ended
	April 24, 2015			April 25, 2014			April 26, 2013
Arrow Electronics, Inc.		23	%		22	%		19	%
Avnet, Inc.		16	%		16	%		15	%

Schedule of Net Accounts Receivable from Significant Customers

The following customers accounted for 10% or more of accounts receivable:

	April 24, 2015			April 25, 2014
Arrow Electronics, Inc.		14	%		14	%
Avnet, Inc.		16	%		16	%

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Segment Geographic and Significant Customer Information - Schedule of Revenues by Geographic Region (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Segment Reporting Information [Line Items]
Net revenues	$ 6,122.7	$ 6,325.1	$ 6,332.4
United States, Canada And Latin America (Americas)
Segment Reporting Information [Line Items]
Net revenues	3,446.8	3,513.3	3,552.5
Europe, Middle East And Africa (EMEA)
Segment Reporting Information [Line Items]
Net revenues	1,857.4	1,954.6	1,928.8
Asia Pacific (APAC)
Segment Reporting Information [Line Items]
Net revenues	$ 818.5	$ 857.2	$ 851.1

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 559.9	$ 637.5	$ 505.3
Other comprehensive income (loss):
Foreign currency translation adjustments	(28.3)	3.5	(2.9)
Defined benefit obligations:
Defined benefit obligation adjustments	(11.8)	0.7	(3.9)
Reclassification adjustments related to defined benefit obligations	0.3	0.6	0
Income tax effect on defined benefit obligations	3.9	(0.4)	2.6
Unrealized gains (losses) on available-for-sale securities:
Unrealized holding gains (losses) arising during the period	2.0	(2.5)	7.3
Reclassification adjustments for gains included in net income	(0.3)	(1.3)	(0.6)
Income tax effect on unrealized holding (gains) losses	0.3	1.3	(0.2)
Unrealized gains (losses) on cash flow hedges:
Unrealized holding gains (losses) arising during the period	15.5	(3.5)	3.7
Reclassification adjustments for (gains) losses included in net income	(14.4)	2.0	(2.2)
Other comprehensive income (loss)	(32.8)	0.4	3.8
Comprehensive income	$ 527.1	$ 637.9	$ 509.1

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Stockholders' Equity - Summary of Activities Related to Stock Repurchase Program (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended			143 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013	Apr. 24, 2015
Equity [Abstract]
Number of shares repurchased	29.6	47.3	18.1	214.0
Average price per share	$ 39.30	$ 39.78	$ 32.68	$ 33.48
Aggregate purchase price	$ 1,165.2	$ 1,881.5	$ 590.0
Remaining authorization at end of period	$ 2,459.5	$ 1,124.8	$ 1,406.3	$ 2,459.5

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Concentration of Risk

12 Months Ended

Apr. 24, 2015

Risks And Uncertainties [Abstract]

Concentration of Risk

2. Concentration of Risk

Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash equivalents, investments, foreign currency exchange contracts and accounts receivable. Cash equivalents and short-term investments consist primarily of corporate bonds, U.S. Treasury and government debt securities and certificates of deposit, all of which are considered high investment grade. Our policy is to limit the amount of credit exposure through diversification and investment in highly rated securities. We further mitigate concentrations of credit risk in our investments by limiting our investments in the debt securities of a single issuer and by diversifying risk across geographies and type of issuer.

By entering into foreign currency exchange contracts, we have assumed the risk that might arise from the possible inability of counterparties to meet the terms of their contracts. The counterparties to these contracts are major multinational commercial banks, and we do not expect any losses as a result of counterparty defaults.

We sell our products primarily to large organizations in different industries and geographies. We do not require collateral or other security to support accounts receivable. In addition, we maintain an allowance for potential credit losses. To reduce credit risk, we perform ongoing credit evaluations on our customers’ financial condition. We establish an allowance for doubtful accounts based upon factors surrounding the credit risk of customers, historical trends and other information and, to date, such losses have been within management’s expectations. Concentrations of credit risk with respect to trade accounts receivable are limited due to the wide variety of customers who are dispersed across many geographic regions.

There are no concentrations of business transacted with a particular market that would severely impact our business in the near term. However, we rely on a limited number of suppliers for certain key components and a few key contract manufacturers to manufacture most of our products; any disruption or termination of these arrangements could materially adversely affect our operating results.

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Balance Sheet Details - Other Current Assets (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Prepaid expenses and other current assets	$ 268.3	$ 219.4
Deferred tax assets	253.5	270.3
Other current assets	$ 521.8	$ 489.7

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Stockholders' Equity - Activity Related to Restricted Stock Units (Detail) (Restricted Stock Units, USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Beginning balance, Number of Shares	13.2	12.8	12.0
RSUs granted, Number of Shares	6.5	6.5	6.0
RSUs vested, Number of Shares	(4.7)	(4.5)	(4.0)
RSUs forfeited, Number of Shares	(1.7)	(1.6)	(1.2)
Ending Balance, Number of Shares	13.3	13.2	12.8
Beginning Balance, Weighted-Average Grant Date Fair Value	$ 38.35	$ 38.36	$ 43.28
RSUs granted, Weighted-Average Grant Date Fair Value	$ 35.80	$ 38.61	$ 29.94
RSUs vested, Weighted-Average Grant Date Fair Value	$ 40.14	$ 38.48	$ 39.83
RSUs forfeited, Weighted-Average Grant Date Fair Value	$ 37.48	$ 39.08	$ 40.95
Ending Balance, Weighted-Average Grant Date Fair Value	$ 36.58	$ 38.35	$ 38.36

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Segment Geographic and Significant Customer Information - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Apr. 24, 2015 Segment	Apr. 25, 2014 Segment	Apr. 26, 2013 Segment
Segment Reporting Information [Line Items]
Number of industry segment	1	1	1
Net revenues	$ 6,122.7	$ 6,325.1	$ 6,332.4
U.S.
Segment Reporting Information [Line Items]
Net revenues	$ 3,096.1	$ 3,130.9	$ 3,152.7

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Financial Instruments and Fair Value Measurements - Schedule of Gross Unrealized Losses and Estimated Fair Values of Investments (Detail) (USD $) In Millions, unless otherwise specified	Apr. 25, 2014
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months estimated fair value	$ 296.1
Less than 12 months, unrealized loss	(0.6)
12 months or greater estimated fair value	36.0
12 months or greater, unrealized loss	(0.9)
Estimated fair value, total	332.1
Unrealized loss, total	(1.5)
Corporate Bonds
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months estimated fair value	233.1
Less than 12 months, unrealized loss	(0.5)
12 months or greater estimated fair value	0
12 months or greater, unrealized loss	0
Estimated fair value, total	233.1
Unrealized loss, total	(0.5)
U.S. Treasury and Government Debt Securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months estimated fair value	63.0
Less than 12 months, unrealized loss	(0.1)
12 months or greater estimated fair value	0
12 months or greater, unrealized loss	0
Estimated fair value, total	63.0
Unrealized loss, total	(0.1)
Auction Rate Securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months estimated fair value	0
Less than 12 months, unrealized loss	0
12 months or greater estimated fair value	36.0
12 months or greater, unrealized loss	(0.9)
Estimated fair value, total	36.0
Unrealized loss, total	$ (0.9)

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Description of Business and Significant Accounting Policies (Policies)

12 Months Ended

Apr. 24, 2015

Accounting Policies [Abstract]

Fiscal Year

Fiscal Year — Our fiscal year is reported on a 52- or 53-week year that ends on the last Friday in April. Our fiscal years 2015, 2014 and 2013 ended on April 24, 2015, April 25, 2014 and April 26, 2013, respectively, and were each 52-week years. An additional week is included in the first fiscal quarter approximately every six years to realign fiscal months with calendar months. Fiscal year 2016 will span 53 weeks, with a 14th week included in the first quarter of fiscal 2016. Unless otherwise stated, references to particular years, quarters, months and periods refer to the Company’s fiscal years ended on the last Friday of April and the associated quarters, months and periods of those fiscal years.

Principles of Consolidation

Principles of Consolidation — The consolidated financial statements include the Company and its subsidiaries. Intercompany accounts and transactions are eliminated in consolidation.

Accounting Change

Accounting Change — In our fourth quarter of fiscal 2015, we adopted an Accounting Standards Update (ASU) that simplifies the presentation of debt issuance costs by requiring them to be presented as a direct deduction from the carrying amount of the related debt liability, rather than as a deferred charge, consistent with debt discounts. The new guidance was applied on a retrospective basis to April 25, 2014. The amended presentation of debt issuance costs resulted in a $7.5 million and $5.4 million reduction of each of other non-current assets and long-term debt in the consolidated balance sheets as of April 24, 2015 and April 25, 2014, respectively.

Use of Estimates

Use of Estimates — The preparation of the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (GAAP) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting periods. Such estimates include, but are not limited to, revenue recognition, reserves and allowances; inventory valuation and purchase order accruals; valuation of goodwill and intangibles; restructuring reserves; product warranties; employee benefit accruals; stock-based compensation; loss contingencies; investment impairments; income taxes and fair value measurements. Actual results could differ materially from those estimates.

Cash Equivalents

Cash Equivalents — We consider all highly liquid debt investments with original maturities of three months or less at the time of purchase to be cash equivalents.

Available-for-Sale Investments

Available-for-Sale Investments — We classify our investments in debt securities as available-for-sale investments. Debt securities primarily consist of corporate bonds, U.S. Treasury and government debt securities and certificates of deposit. These available-for-sale investments are primarily held in the custody of a major financial institution. A specific identification method is used to determine the cost basis of debt securities sold. These investments are recorded in the consolidated balance sheets at fair value.

Unrealized gains and temporary losses, net of related taxes, are included in accumulated other comprehensive income (loss) (AOCI). Upon realization, those amounts are reclassified from AOCI to earnings. The amortization of premiums and discounts on the investments are included in our results of operations. Realized gains and losses on our available-for-sale investments are calculated based on the specific identification method.

We classify our investments as current or noncurrent based on the nature of the investments and their availability for use in current operations.

Other Than Temporary Impairment of Investments

Other-than-Temporary Impairments on Investments — All of our available-for-sale investments are subject to periodic impairment review. When the fair value of a debt security is less than its amortized cost, it is deemed impaired, and we assess whether the impairment is other-than-temporary. An impairment is considered other-than-temporary if (i) we have the intent to sell the security, (ii) it is more likely than not that we will be required to sell the security before recovery of the entire amortized cost basis, or (iii) we do not expect to recover the entire amortized cost basis of the security. If impairment is considered other-than-temporary based on condition (i) or (ii) described above, the entire difference between the amortized cost and the fair value of the debt security is recognized in the results of operations. If an impairment is considered other-than-temporary based on condition (iii) described above, the amount representing credit losses (defined as the difference between the present value of the cash flows expected to be collected and the amortized cost basis of the debt security) is recognized in earnings, and the amount relating to all other factors is recognized in other comprehensive income (OCI).

For our auction rate securities (ARSs), impairment was determined based on fair value and marketability of these investments. The valuation models used to estimate fair value include numerous assumptions such as assessments of the underlying structure of each security, expected cash flows, discount rates, trading activity in the secondary market for similar securities, credit ratings, workout periods, and overall capital market liquidity.

Inventories

Inventories — Inventories are stated at the lower of cost or market, which approximates actual cost on a first-in, first-out basis. We write down excess and obsolete inventory based on the difference between the cost of inventory and the estimated net realizable value based upon assumptions about future demand forecasts and market conditions. At the point of a loss recognition, a new, lower cost basis for that inventory is established, and subsequent changes in facts or circumstances do not result in the restoration or increase in that newly established basis. In addition, we record a liability for firm, non-cancelable and unconditional purchase commitments with contract manufacturers and suppliers for quantities in excess of our future demand forecasts consistent with our valuation of excess and obsolete inventory.

Property and Equipment

Property and Equipment — Property and equipment are recorded at cost.

Depreciation and amortization is computed using the straight-line method, generally over the following periods:

	Depreciation Life
Buildings and improvements	10 to 40 years
Furniture and fixtures	5 years
Computer, production, engineering and other equipment	2 to 3 years
Computer software	3 to 5 years
Leasehold improvements	Shorter of remaining lease term or useful life

Construction in progress will be depreciated over the estimated useful lives of the respective assets when they are ready for use. We capitalize interest on significant facility assets under construction and on significant software development projects.

Software Development Costs

Software Development Costs — The costs for the development of new software products and substantial enhancements to existing software products are expensed as incurred until technological feasibility has been established, at which time any additional costs would be capitalized in accordance with the accounting guidance for software. Because our current process for developing software is essentially completed concurrently with the establishment of technological feasibility, which occurs upon the completion of a working model, no costs have been capitalized for any of the periods presented.

Internal-Use Software Development Costs

Internal-Use Software Development Costs — We capitalize qualifying costs, which are incurred during the application development stage, for computer software developed or obtained for internal-use and amortize them over the software’s estimated useful life.

Business Combinations

Business Combinations — We recognize identifiable assets acquired and liabilities assumed at their acquisition date fair values. Goodwill as of the acquisition date is measured as the excess of consideration transferred over the net of the acquisition date fair values of the assets acquired and the liabilities assumed. While we use our best estimates and assumptions as a part of the purchase price allocation process to accurately value assets acquired and liabilities assumed at the acquisition date, our estimates are inherently uncertain and subject to refinement. As a result, during the measurement period, which may be up to one year from the acquisition date, we record adjustments to the assets acquired and liabilities assumed, with the corresponding offset to goodwill to the extent that we identify adjustments to the preliminary purchase price allocation. Upon the conclusion of the measurement period or final determination of the values of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to our consolidated statements of operations.

Goodwill and Purchased Intangible Assets

Goodwill and Purchased Intangible Assets — Goodwill is recorded when the consideration paid for an acquisition exceeds the fair value of net tangible and intangible assets acquired. Purchased intangible assets are amortized on a straight-line basis over their economic lives of three to six years for developed technology, two to eight years for customer contracts/relationships, two to three years for covenants not to compete and two to seven years for trademarks and trade names as we believe this method most closely reflects the pattern in which the economic benefits of the assets will be consumed.

The carrying value of goodwill is tested for impairment on an annual basis in the fourth quarter of our fiscal year, or more frequently if we believe indicators of impairment exist. Triggering events for impairment reviews may be indicators such as adverse industry or economic trends, restructuring actions, lower projections of profitability, or a sustained decline in our market capitalization. The performance of the test involves a two-step process. The first step requires comparing the fair value of each of our reporting units to its net book value, including goodwill. We have three reporting units, the fair values of which are determined based on an allocation of our entity level market capitalization, as determined through quoted market prices. A potential impairment exists if the fair value of the reporting unit is lower than its net book value. The second step of the process is only performed if a potential impairment exists, and it involves determining the difference between the fair value of the reporting unit’s net assets other than goodwill and the fair value of the reporting unit. If that difference is less than the net book value of goodwill, an impairment exists and is recorded. We have not been required to perform this second step of the process because the fair values of each of our reporting units have exceeded their respective net book values in fiscal 2015, 2014 and 2013.

Impairment of Long-Lived Assets

Impairment of Long-Lived Assets — We review the carrying values of long-lived assets whenever events and circumstances, such as reductions in demand, lower projections of profitability, significant changes in the manner of our use of acquired assets, or significant negative industry or economic trends, indicate that the net book value of an asset may not be recovered through expected future cash flows from its use and eventual disposition. If this review indicates that there is an impairment, the impaired asset is written down to its fair value, which is typically calculated using: (i) quoted market prices and/or (ii) expected future cash flows utilizing a discount rate. Our estimates regarding future anticipated net revenue and cash flows, the remaining economic life of the products and technologies, or both, may differ from those used to assess the recoverability of assets. In that event, impairment charges or shortened useful lives of certain long-lived assets may be required, resulting in charges to our consolidated statements of operations when such determinations are made.

Derivative Instruments

Derivative Instruments — Our derivative instruments consist of foreign currency exchange contracts as described below:

Balance Sheet Hedges — We utilize foreign currency exchange forward and option contracts to hedge against the short-term impact of foreign currency exchange rate fluctuations related to certain foreign currency denominated monetary assets and liabilities, primarily intercompany receivables and payables. These derivative instruments are not designated as hedging instruments and do not subject us to material balance sheet risk due to exchange rate movements because the gains and losses on these contracts are intended to offset the gains and losses in the underlying foreign currency denominated monetary assets and liabilities being hedged and the net amount is included in earnings.

Cash Flow Hedges — We use foreign currency exchange forward contracts to hedge foreign currency exchange exposures related to forecasted sales transactions denominated in certain foreign currencies. These derivative instruments are designated and qualify as cash flow hedges and in general, closely match the underlying forecasted transactions in duration. The contracts are carried in the consolidated balance sheets at fair value, and the effective portion of the contracts’ gains and losses resulting from changes in fair value is recorded in AOCI until the forecasted transaction is recognized in the consolidated statements of operations. When the forecasted transactions occur, we reclassify the related gains or losses on the cash flow hedges into net revenues. If the underlying forecasted transactions do not occur, or it becomes probable that they will not occur within the defined hedge period, the gains or losses on the related cash flow hedges are reclassified from AOCI and recognized immediately in earnings. We measure the effectiveness of hedges of forecasted transactions on a monthly basis by comparing the fair values of the designated foreign currency exchange forward purchase contracts with the fair values of the forecasted transactions. Any ineffective portion of the derivative hedging gain or loss, as well as changes in the fair value of the derivative’s time value (which are excluded from the assessment of hedge effectiveness), are recognized in earnings.

Factors that could have an impact on the effectiveness of our hedging programs include the accuracy of forecasts and the volatility of foreign currency markets. These programs reduce, but do not entirely eliminate, the impact of currency exchange movements. Currently, we do not enter into any foreign currency exchange forward contracts to hedge exposures related to firm commitments or nonmarketable investments. Cash flows from our derivative programs are included under operating activities in the consolidated statements of cash flows.

Revenue Recognition

Revenue Recognition — We recognize revenue when:

· Persuasive evidence of an arrangement exists. Customarily we have a purchase order and/or contract prior to recognizing revenue on an arrangement from our end users, customers, value-added resellers or distributors.

· Delivery has occurred. Our product is physically delivered to our customers. We typically do not allow for restocking rights with any of our value-added resellers or distributors. Products shipped with acceptance criteria or return rights are not recognized as revenue until all criteria are achieved. We do not recognize revenue if undelivered products or services exist that are essential to the functionality of the delivered product in an arrangement.

· The fee is fixed or determinable. Arrangements with payment terms extending beyond our standard terms, conditions and practices are not considered to be fixed or determinable. Revenue from such arrangements is recognized at the earlier of customer payment or when the fees become due and payable. We typically do not allow for price-protection rights with any of our value-added resellers or distributors.

· Collection is reasonably assured. If there is considerable doubt surrounding the creditworthiness of a customer at the outset of an arrangement, the associated revenue is deferred and recognized upon cash receipt.

The hardware systems and software components essential to the functionality of the hardware systems are considered non-software deliverables and therefore are not subject to industry-specific software revenue recognition guidance.

Our product revenues also include revenues from the sale of non-essential software products. Non-essential software sales generally include a perpetual license to our software. Non-essential software sales are subject to the industry-specific software revenue recognition guidance.

Our multiple element arrangements may include our systems, software maintenance, hardware maintenance and other services. Software maintenance contracts entitle our customers to receive unspecified product upgrades and enhancements on a when-and-if-available basis, and patch releases. Hardware maintenance services include contracts for extended warranty, technical support and minimum response times. Other services include professional services and customer education and training services. Revenues from software maintenance and hardware maintenance services are recognized ratably over the contractual term, generally from one to five years. We also offer extended warranty contracts (which extend our standard parts warranty and may include premium hardware maintenance) at the end of the original warranty term; revenues from these contracts are recognized ratably over their respective contract term. We sell professional services either on a time and materials basis or under fixed price projects; we recognize revenue for these services as they are performed.

For multiple element arrangements, we allocate revenue to the software deliverables and the non-software deliverables as a group based on the relative selling prices of all of the deliverables in the arrangement. The selling price for each element is based upon the following selling price hierarchy: vendor specific objective evidence of selling price (VSOE) if available, third party evidence (TPE) if VSOE is not available, or estimated selling price (ESP) if neither VSOE nor TPE are available. ESP is generally evidenced by a majority of historical transactions falling within a reasonable price range. We also consider multiple factors, including, but not limited to, cost of products, gross margin objectives, historical pricing practices, type of customer and distribution channels. For our non-software deliverables, we generally allocate the arrangement consideration based on the relative selling price of the deliverables using ESP. For our software maintenance services, we generally use VSOE. When we are unable to establish VSOE for our software maintenance services, we use ESP in our allocation of arrangement consideration.

VSOE is based upon the normal pricing and discounting practices for those services when sold separately. VSOE is generally evidenced by a substantial majority of historical stand-alone transactions falling within a reasonably narrow range. In addition, we consider major service type, customer type, and other variables in determining VSOE.

When VSOE cannot be established, we attempt to establish the selling price of each element based on third party evidence of selling price (TPE). Generally, we are not able to determine TPE because our go-to-market strategy differs from that of our peers and our offerings contain a significant level of differentiation such that the comparable pricing of products with similar functionality cannot be obtained.

We regularly review VSOE, TPE, and ESP and maintain internal controls over the establishment and updates of these estimates.

For our software deliverables, we use the residual method to recognize revenue when an arrangement includes one or more elements to be delivered at a future date and VSOE of all undelivered elements exists. Typically, only software maintenance, hardware maintenance and/or other services remain undelivered after the product is delivered. Under the residual method, the fair value of the undelivered elements is deferred and the remaining portion of the consideration is recognized as product revenues for delivered elements. If evidence of the fair value of one or more undelivered elements does not exist, all revenue is generally deferred until the earlier of when delivery of those elements occurs or when fair value can be established. In instances where the only undelivered element without fair value is software maintenance, the entire arrangement is recognized ratably over the maintenance period.

We record reductions to revenue for estimated sales returns at the time of shipment. Sales returns are estimated based on historical sales returns, current trends, and our expectations regarding future experience. We monitor and analyze the accuracy of sales returns estimates by reviewing actual returns and adjust them for future expectations. Additionally, distributors and retail partners participate in various cooperative marketing and other programs, and we record estimated accruals and allowances for these programs. We accrue for these programs based on contractual terms and historical experience. Sales and value added taxes collected from customers and remitted to governmental authorities are presented on a net basis in the accompanying consolidated statements of operations.

Product Warranties

Product Warranties — Estimated future hardware and software warranty costs are recorded as a cost of product revenues at the time of product shipment, based on historical and projected warranty claim rates, historical and projected cost-per-claim and knowledge of specific product failures that are outside our typical experience. Factors that affect our warranty liability include the number of installed units subject to warranty protection, product failure rates, estimated material costs, estimated distribution costs and estimated labor costs. We assess the adequacy of our warranty accrual each quarter and adjust the amount as considered necessary.

Foreign Currency Translation

Foreign Currency Translation — For international subsidiaries whose functional currency is the local currency, gains and losses resulting from translation of these foreign currency financial statements into U.S. dollars are recorded in AOCI. For subsidiaries where the functional currency is the U.S. dollar, gains and losses resulting from the process of remeasuring foreign currency financial statements into U.S. dollars are included in other income (expense), net.

Benefit Plans

Benefit Plans — We have a postretirement health care plan and various international defined benefit plans for certain of our employees. We record actuarial gains and losses within AOCI and amortize net gains or losses in excess of 10 percent of the greater of the market value of plan assets or the plans' projected benefit obligation on a straight-line basis over the remaining estimated service life of plan participants. The measurement date for all defined benefit plans is our fiscal year end.

Stock-Based Compensation

Stock-Based Compensation — We measure and recognize stock-based compensation for all stock-based awards, including employee stock options, restricted stock units (RSUs) and rights to purchase shares under our employee stock purchase plan (ESPP), based on their estimated fair value, and recognize the costs in our financial statements using the single option straight-line approach over the requisite service period for the entire award.

The fair value of employee RSUs is equal to the market value of our common stock on the grant date of the award, less the present value of expected dividends during the vesting period, discounted at a risk-free interest rate. Calculating the fair value of employee stock options and the rights to purchase shares under the ESPP requires estimates and significant judgment. The fair value of each award is estimated on the grant date using the Black-Scholes option pricing model, and is not remeasured as a result of subsequent stock price fluctuations. Option-pricing models require the input of highly subjective assumptions, including the expected term of awards and the stock price volatility of the underlying stock of such awards. Our expected term assumption is based primarily on historical exercise and post-vesting forfeiture experience. Effective fiscal 2013, our stock price volatility assumption is based on a combination of our historical and implied volatility, whereas prior to fiscal 2013, we solely used implied volatility.

In addition, the Black-Scholes option pricing model requires risk-free interest rates and expected dividends. The risk-free interest rates are based upon United States Treasury bills with equivalent expected terms, and the expected dividends are based on our history and expected dividend payouts.

We estimate the number of stock-based awards that will be forfeited due to employee turnover. Our forfeiture assumption is primarily based on historical experience.

In the event of a modification of stock-based awards, if the requisite service period of the modified award is longer than the requisite service period of the original award and, both before and after the modification, it is probable that the awards will vest, we recognize the unrecognized compensation cost remaining from the original award plus the incremental compensation cost, if any, as a result of a modification in its entirety over the remaining portion of the requisite service period of the modified award.

Income Taxes

Income Taxes — Deferred income tax assets and liabilities are provided for temporary differences that will result in tax deductions or income in future periods, as well as the future benefit of tax credit carryforwards. A valuation allowance reduces tax assets to their estimated realizable value. Significant judgment is required in determining any valuation allowance recorded against deferred tax assets. In assessing the need for a valuation allowance, we consider all available evidence, including past operating results, estimates of future taxable income, and the feasibility of tax planning strategies. In the event that we change our determination as to the amount of deferred tax assets that can be realized, we adjust our valuation allowance with a corresponding impact to the provision for income taxes in the period in which such determination is made.

The accounting guidance for income taxes prescribes a comprehensive model for how a company should recognize, measure, present, and disclose in its financial statements uncertain tax positions that we have taken or expect to take on a tax return (including a decision whether to file or not to file a return in a particular jurisdiction). We recognize the tax liability for uncertain income tax positions on the income tax return based on the two-step process prescribed in the interpretation. The first step is to determine whether it is more likely than not that each income tax position would be sustained upon audit. The second step is to estimate and measure the tax benefit as the amount that has a greater than 50% likelihood of being realized upon ultimate settlement with the tax authority. Estimating these amounts requires us to determine the probability of various possible outcomes. We evaluate these uncertain tax positions on a quarterly basis. The Company recognizes interest and penalties related to unrecognized tax benefits within the income tax expense line in the accompanying consolidated statement of operations.

Determining the liability for uncertain tax positions requires us to make significant estimates and judgments as to whether, and the extent to which, additional taxes may be due based on potential tax audit issues in the U.S. and other tax jurisdictions throughout the world. Our estimates are based on the outcomes of previous audits, as well as the precedents set in cases in which others have taken similar tax positions to those taken by us. If we later determine that our exposure is lower or that the liability is not sufficient to cover our revised expectations, we adjust the liability and effect a related change in our tax provision during the period in which we make such a determination.

Tax attributes related to the exercise of employee stock options are not realized until they result in a reduction of taxes payable. We do not include unrealized stock option attributes as components of our gross deferred tax assets and corresponding valuation allowance disclosures.

Net Income per Share

Net Income per Share — Basic net income per share is computed by dividing income available to common stockholders by the weighted-average number of common shares outstanding. Diluted net income per share is computed giving effect to all dilutive potential shares that were outstanding during the period. Potential dilutive common shares can consist of outstanding stock options, shares to be purchased under our employee stock purchase plan and unvested RSUs, as well as outstanding warrants and shares to be issued upon the conversion of convertible notes.

Treasury Stock Policy

Treasury Stock — We account for treasury stock under the cost method. Upon the retirement of treasury stock, we allocate the value of treasury shares between common stock, additional paid-in capital and retained earnings.

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Commitments and Contingencies - Future Annual Minimum Lease Payments Under All Noncancelable Operating Leases (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015
Leases [Abstract]
2016	$ 61.9
2017	44.0
2018	29.6
2019	21.0
2020	17.3
Thereafter	31.7
Total	$ 205.5

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Financing Arrangements - Carrying Value of Long-Term Debt (Detail) (USD $) In Millions, unless otherwise specified	Apr. 24, 2015	Apr. 25, 2014
Debt Instrument [Line Items]
Total principal amount	$ 1,500.0	$ 1,000.0
Less: Unamortized discount	(5.0)	(4.5)
Unamortized issuance costs	(7.5)	(5.4)
Total long-term debt	1,487.5	990.1
Senior Notes | Due 2017
Debt Instrument [Line Items]
Total principal amount	750.0	750.0
Debt Instrument, Effective Interest Rate	2.25%	2.25%
Senior Notes | Due 2021
Debt Instrument [Line Items]
Total principal amount	500.0	0
Debt Instrument, Effective Interest Rate	3.54%
Senior Notes | Due 2022
Debt Instrument [Line Items]
Total principal amount	$ 250.0	$ 250.0
Debt Instrument, Effective Interest Rate	3.43%	3.43%

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Restructuring and Other Charges (Tables)

12 Months Ended

Apr. 24, 2015

Restructuring And Related Activities [Abstract]

Activities Related to Restructuring Reserves

Activities related to these plans are summarized as follows (in millions):

	March 2014 Plan			May 2013 Plan			Total
Balance as of April 26, 2013	$	—		$	—		$	—
Net charges		38.8			49.5			88.3
Cash payments		(12.3	)		(49.5	)		(61.8	)
Balance as of April 25, 2014		26.5			—			26.5
Net charges		—			—			—
Cash payments		(26.5	)		—			(26.5	)
Balance as of April 24, 2015	$	—		$	—		$	—

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Derivatives and Hedging Activities

12 Months Ended

Apr. 24, 2015

Derivative Instruments And Hedging Activities Disclosure [Abstract]

Derivatives and Hedging Activities

12. Derivatives and Hedging Activities

We use derivative instruments to manage exposures to foreign currency risk. Our primary objective in holding derivatives is to reduce the volatility of earnings and cash flows associated with changes in foreign currency exchange rates. The program is not designated for trading or speculative purposes. Our derivatives expose us to credit risk to the extent that the counterparties may be unable to meet the terms of the agreement. We seek to mitigate such risk by limiting our counterparties to major financial institutions. In addition, the potential risk of loss with any one counterparty resulting from this type of credit risk is monitored on an ongoing basis. We also have in place master netting arrangements to mitigate the credit risk of our counterparties and to potentially reduce our losses due to counterparty nonperformance. We present our derivative instruments as net amounts in our consolidated balance sheets. The gross and net fair value amounts of such instruments were not material as of April 24, 2015 or April 25, 2014. We did not recognize any gains and losses in earnings due to hedge ineffectiveness for any period presented. All contracts have a maturity of less than six months.

Over the next 12 months, we expect an immaterial amount of derivative net gains recorded in AOCI as of April 24, 2015 will be reclassified into net revenues. The maximum length of time over which forecasted foreign currency denominated revenues are hedged is six months.

The notional amount of our outstanding U.S. dollar equivalent foreign currency exchange contracts consisted of the following (in millions):

	April 24, 2015		April 25, 2014
Cash Flow Hedges
Forward contracts purchased	$	93.6	$	122.6
Balance Sheet Contracts
Forward contracts sold	$	160.2	$	155.5
Forward contracts purchased	$	231.2	$	389.9

The effect of derivative instruments designated as cash flow hedges recognized in net revenues on our consolidated statements of operations is presented in the consolidated statements of comprehensive income and Note 11 – Stockholders’ Equity.

The effect of derivative instruments not designated as hedging instruments recognized in other income (expense), net on our consolidated statements of operations was as follows (in millions):

	Year Ended
	April 24, 2015		April 25, 2014		April 26, 2013
	Gain Recognized into Income
Foreign currency exchange contracts	$	14.1	$	0.8	$	6.5

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Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Apr. 24, 2015	Apr. 25, 2014	Apr. 26, 2013	Apr. 27, 2012
Income Tax Contingency [Line Items]
Deferred tax assets, increase/decrease in valuation allowance	$ 8,100,000	$ 9,800,000
Operating loss and credit carryforwards, expiration dates range, minimum	2018
Operating loss and credit carryforwards, expiration dates range, maximum	2035
Gross unrecognized tax benefits	271,900,000	235,900,000	189,600,000	161,000,000
Unrecognized tax benefits included in other long-term liabilities	213,600,000
Unrecognized tax benefits that would affect provision for income taxes	167,500,000
Tax penalties and interest on unrecognized tax benefits	3,600,000	2,200,000	1,200,000
Accrued tax penalties and interest on unrecognized tax benefits	8,600,000	5,000,000
Resolution of income tax examinations	46,400,000	0	100,000
Expected refund, excluding interest from fiscal 2005 to 2007 income tax audit	8,000,000
Estimated potential decrease in unrecognized tax benefit balance	95,400,000
Accumulated unremitted earnings from foreign subsidiaries	3,300,000,000
Estimated unrecognized deferred tax liability on unremitted earnings of foreign subsidiaries	1,000,000,000
United Kingdom
Income Tax Contingency [Line Items]
Resolution of income tax examinations	(1,000,000)
Federal Income Tax
Income Tax Contingency [Line Items]
Operating loss carry forwards	21,700,000
Tax credit carry forward amount	117,000,000
Resolution of income tax examinations	47,400,000
State and Local Income Tax
Income Tax Contingency [Line Items]
Operating loss carry forwards	85,400,000
Tax credit carry forward amount	145,500,000
Additional Paid-in Capital
Income Tax Contingency [Line Items]
Unrecognized tax benefits	$ 122,000,000