Commitments, Contingencies and Legal Matters (Details) (USD $)
In Millions, unless otherwise specified
0 Months Ended 6 Months Ended
Jun. 15, 2011
years
Jun. 26, 2011
Commitments, Contingencies and Legal Matters    
Total purchase commitments   $ 195.5
Liability for uncertain tax positions   18.7
Patent license expiration period, granted 7  
Proceeds from limited patent cross license 150  
Limited patent cross licenses, period (years) 5  
Limited patent cross licenses, initial payments 25  
Limited patent cross licenses initial payment, due date August 15, 2011  
Limited patent cross licenses, number of installments 20  
Limited patent cross licenses, future payments 6.25  
Bankruptcy claim 45  
Bankruptcy claim approved by court $ 30 Â