v2.4.0.6

Stockholders' Equity (Combined Activity Under Stock Option Plans And Agreements) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	9 Months Ended
	Jan. 27, 2012
Stockholders' Equity [Abstract]
Beginning balance, Number of Shares	24.5
Beginning balance, Weighted-Average Exercise Price	$ 26.62
Options granted, Numbers of Shares	2.1
Options granted, Weighted-Average Exercise Price	$ 51.36
Options exercised, Number of Shares	(3.0)
Options exercised, Weighted-Average Exercise Price	$ 20.98
Options forfeitures and cancellations, Number of Shares	(0.7)
Options forfeitures and cancellations, Weighted-Average Exercise Price	$ 35.96
Ending balance, Number of Shares	22.9
Ending balance, Weighted-Average Exercise Price	$ 29.28
Outstanding, Weighted-Average Remaining Contractual Term (Years)	3.91
Outstanding, Aggregate Intrinsic Value	$ 239.6
Options vested and expected to vest, Number of Shares	22.1
Options vested and expected to vest, Weighted-Average Exercise Price	$ 28.86
Options vested and expected to vest, Weighted-Average Remaining Contractual Term (Years)	3.86
Options vested and expected to vest, Aggregate Intrinsic Value	236.7
Exercisable, Number of Shares	15.1
Exercisable, Weighted-Average Exercise Price	$ 25.64
Exercisable, Weighted-Average Remaining Contractual Term (Years)	3.25
Exercisable, Aggregate Intrinsic Value	$ 188.9

X

- Definition

The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices of vested portions of options outstanding and currently exercisable under the option plan as of the balance sheet date.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The weighted average period between the balance sheet date and expiration for all vested portions of options outstanding and currently exercisable (or convertible) under the plan, which may be expressed in a decimal value for number of years.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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The combined weighted average exercise price associated with stock options during the period that have either lapsed or been forfeited.

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Net number of share options (or share units) granted during the period.

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The weighted average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on stock options awarded under the plan during the reporting period.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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The weighted average price as of the beginning of the year at which grantees can acquire the shares reserved for issuance under the stock option plan.

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