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Goodwill and Intangible Assets
6 Months Ended
Feb. 29, 2012
Notes to Financial Statements [Abstract]  
Goodwill and Intangible Assets Disclosure [Text Block]
Note 9.  Goodwill and Other Intangible Assets
 
Changes in the carrying amount of goodwill consist of the following activity (In millions):

Net book value – March 1, 2011
   
Goodwill
 $1,926 
Accumulated impairment losses
  (28)
Total
  1,898 
Acquisitions
  132 
Other
  (13)
Net book value – August 31, 2011
  2,017 
Acquisitions
  37 
Other
  24 
Net book value – February 29, 2012
 $2,078 

In fiscal 2012, the Company acquired Crescent Pharmacy Holdings, LLC, an infusion pharmacy business, for $75 million, net of assumed cash. In conjunction with the preliminary purchase accounting for this acquisition, the Company recorded $37 million of goodwill.  In June 2011, the Company completed its acquisition of drugstore.com, inc. for cash proceeds of $398 million including the assumption of $17 million of debt.  Based on preliminary purchase accounting, the acquisition added $156 million to goodwill and $160 million of intangible assets.  Other primarily represents immaterial purchase accounting adjustments for the Company’s acquisitions.

The carrying amount and accumulated amortization of intangible assets consists of the following (In millions):

   
February 29,
2012
  
August 31,
2011
  
February 28,
2011
 
Gross Intangible Assets
         
     Purchased prescription files
 $901  $913  $795 
     Favorable lease interests
  385   385   385 
     Purchasing and payer contracts
  308   308   303 
     Non-compete agreements
  110   95   85 
     Trade names
  188   71   44 
     Other amortizable intangible assets
  4   4   5 
Total gross intangible assets
  1,896   1,776   1,617 
              
Accumulated amortization
            
     Purchased prescription files
  (372)  (338)  (309)
     Favorable lease interests
  (94)  (76)  (58)
     Purchasing and payer contracts
  (106)  (94)  (81)
     Non-compete agreements
  (47)  (43)  (39)
     Trade names
  (22)  (11)  (7)
     Other amortizable intangible assets
  (2)  (2)  (2)
Total accumulated amortization
  (643)  (564)  (496)
Total intangible assets, net
 $1,253  $1,212  $1,121 

Amortization expense for intangible assets was $121 million and $98 million for the six month periods ended February 29, 2012 and February 28, 2011, respectively.  The estimated annual amortization expense related to intangible assets is as follows (In millions):

2012
  
2013
  
2014
  
2015
  
2016
 
$236  $214  $181  $149  $111