Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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CASH AND CASH EQUIVALENTS (Details) (USD $) In Thousands, unless otherwise specified	Dec. 27, 2014	Sep. 27, 2014	Dec. 28, 2013	Sep. 28, 2013
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, Amortized Cost	$ 622,590	$ 587,981	$ 550,598	$ 521,788
Cash and cash equivalents, Estimated Fair Value	622,590	587,981
Short-term investments, Amortized Cost	10,787	9,105
Short-term investments, Estimated Fair Value	10,787us-gaap_InvestmentsFairValueDisclosure	9,105us-gaap_InvestmentsFairValueDisclosure
Total cash, cash equivalents and short-term investments, Amortized Cost	633,377	597,086
Total cash, cash equivalents and short-term investments, Estimated Fair Value	633,377us-gaap_AssetsFairValueDisclosure	597,086us-gaap_AssetsFairValueDisclosure
Cash [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, Amortized Cost	131,263	130,668
Cash and cash equivalents, Estimated Fair Value	131,263	130,668
Cash equivalents, Money market funds [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, Amortized Cost	327,742	295,529
Cash and cash equivalents, Estimated Fair Value	327,742	295,529
Cash equivalents, Time deposits [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, Amortized Cost	134,085	132,284
Cash and cash equivalents, Estimated Fair Value	134,085	132,284
Commercial Paper [Member]
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents, Amortized Cost	29,500	29,500
Cash and cash equivalents, Estimated Fair Value	29,500	29,500
Short-term investments, Time deposits [Member]
Cash and Cash Equivalents [Line Items]
Short-term investments, Amortized Cost	10,787	9,105
Short-term investments, Estimated Fair Value	$ 10,787	$ 9,105