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ACCOUNTING POLICIES Presentation of Net Periodic Pension and Postretirement Benefits (Tables)
 12 Months Ended
Dec. 31, 2017
ASU 2017-07 [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Postemployment Benefit Plans, Policy [Policy Text Block]
As adjusted amounts upon adoption of the new guidance are as follows:
 
 
Year Ended December 31,
 
 
2017
 
2016
Dollars in Millions
 
As Reported
 
As Adjusted
 
As Reported
 
As Adjusted
Cost of products sold
 
$
6,066

 
$
6,092

 
$
4,946

 
$
4,967

Marketing, selling and administrative
 
4,687

 
4,733

 
4,911

 
4,960

Research and development
 
6,411

 
6,474

 
4,940

 
5,005

Other income (net)
 
(1,519
)
 
(1,654
)
 
(1,285
)
 
(1,420
)