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Goodwill and Other Intangible Assets, Net
6 Months Ended
Oct. 26, 2012
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets Disclosure

Note 12 – Goodwill and Other Intangible Assets, Net

 

The changes in the carrying amount of goodwill for the six months ended October 26, 2012 are as follows:

 Cardiac and Restorative  
(in millions)Vascular Group Therapies Group Total
Balance as of April 27, 2012$ 2,636 $ 7,298 $9,934
Goodwill as a result of acquisitions  -   12   12
Purchase accounting adjustments, net  -   1   1
Currency adjustment, net  (1)   (2)   (3)
Balance as of October 26, 2012$2,635 $7,309 $9,944

  Purchased Trademarks         
 Technology and and Acquired      
(in millions)Patents Tradenames IPR&D Other Total
Amortizable intangible assets as of October 26, 2012:               
Original cost $3,591 $373 $ 368 $ 147 $ 4,479
Accumulated amortization  (1,555)  (314)   -   (110)   (1,979)
Carrying value $ 2,036 $ 59 $ 368 $ 37 $ 2,500
                
Amortizable intangible assets as of April 27, 2012:               
Original cost $3,604 $373 $370 $148 $4,495
Accumulated amortization  (1,440)  (307)   -  (101)  (1,848)
Carrying value $2,164 $66 $370 $47 $2,647

Amortization expense for the three and six months ended October 26, 2012 was $79 million and $159 million, respectively, and for the three and six months ended October 28, 2011 was $85 million and $171 million, respectively.

 

Estimated aggregate amortization expense based on the current carrying value of amortizable intangible assets, excluding any possible future amortization associated with acquired IPR&D, which has not met technological feasibility, is as follows: 

(in millions)Estimated
Fiscal YearAmortization Expense
Remaining 2013$163
2014 306
2015 289
2016 276
2017 255
2018 239
Thereafter 604
Total estimated amortization expense$ 2,132