The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior.

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-Name Staff Accounting Bulletin (SAB)

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-Section D

-Subsection 2

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The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

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The risk-free interest rate assumption that is used in valuing an option on its own shares.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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-Name Statement of Financial Accounting Standard (FAS)

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Aggregate change in value for stock issued during the period as a result of employee stock purchase plan.

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Reductions in the entity's income taxes that arise when compensation cost (from non-qualified stock options) recognized on the entity's tax return exceeds compensation cost from non-qualified stock options recognized on the income statement. This element increases net cash provided by operating activities.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A132

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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-Paragraph 24

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Share based compensation arrangement by share based payment award shares reserved.

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Stock-Based Compensation Plans (Details Textual) (USD $)	6 Months Ended		12 Months Ended	3 Months Ended		6 Months Ended			3 Months Ended		6 Months Ended				3 Months Ended		6 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Mar. 31, 2012	Sep. 29, 2012 Employee Stock Option [Member]	Oct. 01, 2011 Employee Stock Option [Member]	Sep. 29, 2012 Employee Stock Option [Member]	Oct. 01, 2011 Employee Stock Option [Member]	Aug. 08, 2012 Employee Stock Option [Member]	Sep. 29, 2012 Employee Stock Purchase Plan [Member]	Oct. 01, 2011 Employee Stock Purchase Plan [Member]	Sep. 29, 2012 Employee Stock Purchase Plan [Member]	Oct. 01, 2011 Employee Stock Purchase Plan [Member]	Aug. 08, 2012 Employee Stock Purchase Plan [Member]	Sep. 29, 2012 Equity Plan 2007 [Member]	Sep. 29, 2012 Restricted Stock Units [Member]	Oct. 01, 2011 Restricted Stock Units [Member]	Sep. 29, 2012 Restricted Stock Units [Member]	Oct. 01, 2011 Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term				4.9	5.2	4.9	5.2				1.25	1.25
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate				29.00%	34.00%	29.00%	31.00%				29.00%	29.00%
Stock Issued During Period, Shares, Employee Stock Purchase Plans									521,000	501,000
Stock Issued During Period, Value, Employee Stock Purchase Plan									$ 14,100,000	$ 13,300,000
Tax Benefit from Stock Options Exercised	3,282,000	6,531,000
Weighted average fair value per share of stock options granted				$ 6.35	$ 8.03	$ 6.35	$ 7.87
Weighted average fair value per share of RSUs and stock purchase rights granted	$ 31.57		$ 33.69						$ 8.53	$ 9.37					$ 31.12	$ 34.33	$ 31.57	$ 34.13
Shares available for grant									9,600,000		9,600,000			16,400,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value				$ 7,800,000	$ 3,300,000	$ 11,700,000	$ 18,300,000
Authorized number of shares reserved for issuance								3,500,000					2,000,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures	48,000		207,000
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate				0.70%	1.20%	0.70%	1.70%				0.20%	0.20%			0.40%	0.70%	0.40%	0.80%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate				2.60%	2.30%	2.60%	2.30%				2.70%	2.40%			2.70%	2.10%	2.70%	2.10%