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Marketable Securities Marketable Securities (Policies)	3 Months Ended
Marketable Securities Marketable Securities (Policies)	Dec. 25, 2011
Notes to Financial Statements [Abstract]
Marketable Securities, Trading Securities	The Company classifies portfolios of debt securities that involve the purchase or sale of derivative instruments to acquire or reduce foreign exchange and/or equity and credit risk as trading.

Disclosure of accounting policy for investments in debt and equity securities that are classified as trading securities. This policy also may describe the entity's accounting treatment for transfers between investment categories and how the fair values of such securities are determined.

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