Goodwill and Intangible Assets
 3 Months Ended
Mar. 31, 2015
Goodwill and Intangible Assets  
Goodwill and Intangible Assets

NOTE 3. Goodwill and Intangible Assets

 

Purchased goodwill from acquisitions totaled $96 million during the first three months of 2015, none of which is deductible for tax purposes. The amounts in the “Translation and other” column in the following table primarily relate to changes in foreign currency exchange rates. The goodwill balances by business segment as of December 31, 2014 and March 31, 2015, follow:

 

Goodwill

  December 31, 2014 Acquisition Translation March 31, 2015
(Millions)Balanceactivityand otherBalance
Industrial $ 2,037 $ 1 $ (66) $ 1,972
Safety and Graphics   1,650   ―   (46)   1,604
Electronics and Energy   1,559   ―   (35)   1,524
Health Care   1,589   95   (58)   1,626
Consumer   215   ―   (7)   208
Total Company  $ 7,050 $ 96 $ (212) $ 6,934

Acquired Intangible Assets

 

For the three months ended March 31, 2015, changes in foreign currency exchange rates decreased the gross carrying amount of intangible assets, with this impact partially offset by gross intangible assets (excluding goodwill) acquired through business combinations. The carrying amount and accumulated amortization of acquired finite-lived intangible assets, in addition to the balance of non-amortizable intangible assets, as of March 31, 2015, and December 31, 2014, follow:

   March 31, December 31,
(Millions)20152014
Customer related intangible assets $ 1,339 $ 1,348
Patents    561   581
Other technology-based intangible assets   400   407
Definite-lived tradenames   396   401
Other amortizable intangible assets   224   221
Total gross carrying amount  $ 2,920 $ 2,958
        
Accumulated amortization — customer related   (599)   (597)
Accumulated amortization — patents    (457)   (472)
Accumulated amortization — other technology-based   (218)   (215)
Accumulated amortization — definite-lived tradenames   (197)   (195)
Accumulated amortization — other    (168)   (167)
Total accumulated amortization  $ (1,639) $ (1,646)
        
 Total finite-lived intangible assets — net  $ 1,281 $ 1,312
        
Non-amortizable intangible assets (primarily tradenames)   115   123
 Total intangible assets — net $ 1,396 $ 1,435

Amortization expense for acquired intangible assets for the three months ended March 31, 2015 and 2014 follows:
       
  Three months ended
  March 31,
(Millions) 2015 2014
Amortization expense  $ 53 $ 57

The table below shows expected amortization expense for acquired amortizable intangible assets recorded as of March 31, 2015:
(Millions) Remainder                 
of            After
2015201620172018201920202020
Amortization expense $ 150 $ 177 $ 155 $ 139 $ 127 $ 117 $ 416

The preceding expected amortization expense is an estimate. Actual amounts of amortization expense may differ from estimated amounts due to additional intangible asset acquisitions, changes in foreign currency exchange rates, impairment of intangible assets, accelerated amortization of intangible assets and other events. 3M expenses the costs incurred to renew or extend the term of intangible assets.