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Schedule II: Valuation And Qualifying Accounts
 12 Months Ended
Dec. 31, 2011
Schedule II: Valuation And Qualifying Accounts [Abstract]  
Schedule II: Valuation And Qualifying Accounts

GILEAD SCIENCES, INC.

Schedule II: Valuation and Qualifying Accounts

(in thousands)

 

     Balance at
Beginning of
Period		      Additions/
Charged to
Expense		      Deductions      Balance at
End of
Period		  

Year ended December 31, 2011:

            

Accounts receivable allowances (1)

   $ 150,942       $ 1,228,006       $ 1,172,958       $ 205,990   

Valuation allowances for deferred tax assets (2)

   $ 13,040       $ 436       $ 4,267       $ 9,209   

Year ended December 31, 2010:

            

Accounts receivable allowances (1)

   $ 132,810       $ 818,132       $ 800,000       $ 150,942   

Valuation allowances for deferred tax assets (2)

   $ 1,078       $ 12,127       $ 165       $ 13,040   

Year ended December 31, 2009:

            

Accounts receivable allowances (1)

   $ 90,694       $ 606,504       $ 564,388       $ 132,810   

Valuation allowances for deferred tax assets (2)

   $ —         $ 15,103       $ 14,025       $ 1,078   

(1) Allowances are for doubtful accounts, sales returns, cash discounts and chargebacks.
(2) Valuation allowance for deferred tax assets includes $7.5 million and $9.9 million as of December 31, 2011 and 2010, respectively, related to our acquisitions.