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GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)
12 Months Ended
Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Changes in Carrying Amount of Goodwill

Changes in the carrying amount of goodwill follow:
(Dollars in millions)
Additives & Functional Products
 
Advanced Materials
 
Chemical Intermediates
 
Other
 
Total
Balance at December 31, 2017
$
2,459

 
$
1,289


$
769


$
10


$
4,527

Impairments recognized
(38
)
 

 

 

 
(38
)
Currency translation adjustments
(11
)
 
(6
)
 
(5
)
 

 
(22
)
Balance at December 31, 2018
2,410

 
1,283

 
764

 
10

 
4,467

Acquisitions
15

 

 

 

 
15

Impairments recognized
(45
)
 

 

 

 
(45
)
Currency translation adjustments
(3
)
 
(1
)
 
(2
)
 

 
(6
)
Balance at December 31, 2019
$
2,377

 
$
1,282

 
$
762

 
$
10

 
$
4,431



Schedule of Finite Lived and Indefinite Lived Intangible Assets by Major Class
 
 
 
 
December 31, 2019
 
December 31, 2018
(Dollars in millions)
Estimated Useful Life in Years
Gross Carrying Value
 
Accumulated Amortization
 
Net Carrying Value
 
Gross Carrying Value
 
Accumulated Amortization
 
Net Carrying Value
Amortizable intangible assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Customer relationships
8
-
25
$
1,566

 
$
494

 
$
1,072

 
$
1,567

 
$
419

 
$
1,148

Technology
7
-
20
677

 
343

 
334

 
680

 
294

 
386

Contracts
 
5


 

 

 
180

 
147

 
33

Other
5
-
37
88

 
22

 
66

 
102

 
23

 
79

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Indefinite-lived intangible assets:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Tradenames
 
 
 
529

 

 
529

 
529

 

 
529

Other
 
 
 
10

 

 
10

 
10

 

 
10

Total identified intangible assets
 
 
 
$
2,870

 
$
859

 
$
2,011

 
$
3,068

 
$
883

 
$
2,185