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Goodwill and Intangible Assets (Tables)
6 Months Ended
Jun. 30, 2012
Goodwill and Intangible Assets  
Goodwill
  December 31, 2011 Acquisition Translation June 30, 2012
(Millions)Balanceactivityand otherBalance
Industrial and Transportation $ 1,961 $ 6 $ (9) $ 1,958
Health Care   1,514   94   (28)   1,580
Consumer and Office   228   6   2   236
Safety, Security and Protection Services   1,675     (21)   1,654
Display and Graphics   993     (11)   982
Electro and Communications   676     (17)   659
Total Company  $ 7,047 $ 106 $ (84) $ 7,069
Acquired Intangible Assets
   June 30, December 31,
(Millions)20122011
Patents  $ 555 $ 561
Other amortizable intangible assets (primarily tradenames and customer related      
 intangibles)    2,280   2,323
Total gross carrying amount  $ 2,835 $ 2,884
        
Accumulated amortization — patents    (385)   (374)
Accumulated amortization — other    (729)   (717)
Total accumulated amortization  $ (1,114) $ (1,091)
        
 Total finite-lived intangible assets — net  $ 1,721 $ 1,793
        
Non-amortizable intangible assets (tradenames)   121   123
 Total intangible assets — net $ 1,842 $ 1,916
Schedule of amortization expense for acquired intangible assets
Amortization expense for acquired intangible assets for the three-month and six-month periods ended June 30, 2012 and 2011 follows:
             
  Three months ended Six months ended
  June 30, June 30,
(Millions) 2012 2011 2012 2011
Amortization expense  $ 58 $ 63 $ 116 $ 117
Schedule of expected amortization expense for acquired amortizable intangible assets
The table below shows expected amortization expense for acquired amortizable intangible assets recorded as of June 30, 2012:
  Remainder                 
of            After
2012201320142015201620172017
Amortization expense $ 115 $ 216 $ 193 $ 180 $ 167 $ 154 $ 696