Balance Sheet Details - Property and Equipment Net (Detail) (USD $) In Millions, unless otherwise specified	Oct. 26, 2012	Apr. 27, 2012
Property, Plant and Equipment [Line Items]
Land	$ 247.6	$ 247.6
Buildings and building improvements	447.6	417.9
Leasehold improvements	104.5	96.5
Computer, production, engineering and other equipment	695.9	638.1
Software	390.4	381.6
Furniture and fixtures	80.7	71.7
Construction-in-progress	99.9	107.1
Property, Plant and Equipment, Gross, Total	2,066.6	1,960.5
Accumulated depreciation and amortization	(934.2)	(823.3)
Property and equipment, net	$ 1,132.4	$ 1,137.2

The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land) that has been recognized in the income statement.

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- Definition

Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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- Definition

The gross amount of capitalized computer software costs as of the balance sheet date.

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-Name Accounting Standards Codification

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- Definition

Gross amount, at the balance sheet date, of long-lived assets under construction that include construction costs to date on capital projects that have not been completed and assets being constructed that are not ready to be placed into service.

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Gross amount, at the balance sheet date, of long-lived, depreciable assets commonly used in offices and stores. Examples include desks, chairs, and store fixtures.

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Carrying amount as of the balance sheet date of real estate held for productive use. This excludes land held for sale.

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Gross amount, at the balance sheet date, of long-lived, depreciable assets that are an addition or improvement to assets held under lease arrangement.

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Gross amount, as of the balance sheet date, of long-lived, depreciable assets used in the production process to produce goods and services.

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Gross amount of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Amount, net of accumulated depreciation, depletion and amortization, of long-lived physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

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-Name Regulation S-X (SX)

-Number 210

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