Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Schedule Of Recurring Fair Value Measurements) (Details)

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Fair Value Measurements (Schedule Of Recurring Fair Value Measurements) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2011
Jan. 01, 2011
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Cash equivalents, Money market funds $ 117 $ 437,229
Cash equivalents, Time deposits 89,585 93,254
Derivative instruments 46,328 18,568
Investment securities 175,225 182,673
Other marketable securities 4,913 12,388
Derivative instruments 23,513 28,815
Deferred compensation 220,056 212,011
Quoted Prices In Active Markets For Identical Assets, Level 1 [Member]
   
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Cash equivalents, Money market funds 117 437,229
Cash equivalents, Time deposits 89,585 93,254
Derivative instruments      
Investment securities 144,391 147,380
Other marketable securities 4,913 12,388
Derivative instruments      
Deferred compensation      
Significant Other Observable Inputs, Level 2 [Member]
   
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Cash equivalents, Money market funds      
Cash equivalents, Time deposits      
Derivative instruments 46,328 18,568
Investment securities 30,834 35,293
Other marketable securities      
Derivative instruments 23,513 28,815
Deferred compensation 220,056 212,011
Significant Unobservable Inputs, Level 3 [Member]
   
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]    
Cash equivalents, Money market funds      
Cash equivalents, Time deposits      
Derivative instruments      
Investment securities      
Other marketable securities      
Derivative instruments      
Deferred compensation