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Summary of Non-cash Operating, Investing and Financing Activities
 12 Months Ended
Dec. 31, 2014
Summary of Non-cash Operating, Investing and Financing Activities [Abstract]  
Summary of Non-cash Operating, Investing and Financing Activities
Note 18: Summary of Non-cash Operating, Investing and Financing Activities

The effect on net assets of non-cash operating, investing and financing activities was as follows:

(dollars in millions)
 
2014
  
2013
  
2012
 
       
Tax benefit of stock compensation plan transactions
 
$
6
  
$
10
  
$
12
 
Change in fair value of derivatives accounted for as cash flow hedges, net of tax
 
$
(76
)
 
$
14
  
$
10
 
Actuarial gain (loss), net, related to defined benefit pension and postretirement benefit plans
 
$
(35
)
 
$
13
  
$
(34
)