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Goodwill And Other Intangibles
12 Months Ended
Sep. 30, 2011
Goodwill And Other Intangibles [Abstract] 
Goodwill And Other Intangibles
(6)  Goodwill and Other Intangibles

Purchases of businesses are accounted for under the acquisition method, with substantially all goodwill assigned to the reporting unit that acquires the business. Under an impairment test performed annually, if the carrying amount of a reporting unit's goodwill exceeds its estimated fair value, impairment is recognized to the extent that the carrying amount exceeds the implied fair value of the goodwill. Fair values of reporting units are estimated using discounted cash flows and are subject to change due to changes in underlying economic conditions. The change in the carry amount of goodwill by business segment follows. See Notes 3 and 4 for further discussion of changes in goodwill related to acquisitions, divestitures and impairment.
 
                                                 
   
PROCESS
   
INDUSTRIAL
   
NETWORK
   
CLIMATE
   
TOOLS AND
       
   
MANAGEMENT
   
AUTOMATION
   
POWER
   
TECHNOLOGIES
   
STORAGE
   
TOTAL
 
Balance, September 30, 2009
  $ 2,279       1,304       2,417       473       605       7,078  
Acquisitions
    27       97       1,509                       1,633  
Divestitures
                    (2 )             (44 )     (46 )
Foreign currency translation and other
    (32 )     (22 )     73       (9 )     (19 )     (9 )
Balance, September 30, 2010
  $ 2,274       1,379       3,997       464       542       8,656  
Acquisitions
    110                       15               125  
Divestitures
            (1 )     (8 )             (6 )     (15 )
Impairment
            (19 )                             (19 )
Foreign currency translation and other
    (16 )     34       1       4       1       24  
Balance, September 30, 2011
  $ 2,368       1,393       3,990       483       537       8,771  

The gross carrying amount and accumulated amortization of identifiable intangible assets by major class follow:

                                                                 
   
CUSTOMER RELATIONSHIPS
   
INTELLECTUAL PROPERTY
   
CAPITALIZED SOFTWARE
   
TOTAL
 
   
2010
   
2011
   
2010
   
2011
   
2010
   
2011
   
2010
   
2011
 
Gross carrying amount
  $ 1,414       1,499       1,127       1,110       918       971       3,459       3,580  
Less: Accumulated amortization
    181       330       420       518       708       763       1,309       1,611  
Net carrying amount
  $ 1,233       1,169       707       592       210       208       2,150       1,969  

Total intangible asset amortization expense for 2011, 2010 and 2009 was $345, $254 and $184, respectively. Based on intangible asset balances as of September 30, 2011, amortization expense is expected to approximate $312 in 2012, $267 in 2013, $231 in 2014, $198 in 2015 and $173 in 2016.