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Note 9 - Long-Term Credit Facility Details (USD $)
Jul. 01, 2011
Dec. 31, 2010
Line of Credit Facility [Line Items]    
Unsecured Revolving Credit Facility, Maximum Borrowing Capacity $ 750,000,000 $ 750,000,000
Total Borrowings Under Unsecured Revolving Credit Facility 500,000,000 500,000,000
Unsecured Revolving Credit Facility, LIBOR plus Interest Rate 0.27%  
Percentage Of Facility Fee 0.08%  
Unsecured Revolving Credit Facility, Remaining Borrowing Capacity $ 250,000,000