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GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)
 12 Months Ended
Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Changes in Carrying Amount of Goodwill
(Dollars in millions)Advanced MaterialsAdditives & Functional ProductsChemical IntermediatesOtherTotal
Balance at December 31, 2021
$1,286 $1,585 $760 $10 $3,641 
Acquisitions (1)
15 30 — — 45 
Currency translation and other adjustments
(5)(14)(3)— (22)
Balance at December 31, 2022
$1,296 $1,601 $757 $10 $3,664 
Adjustments to net goodwill resulting from reorganization (2)
— 569 (569)— — 
Acquisition34 — — — 34 
Divestiture
— — (67)— (67)
Currency translation and other adjustments
— 12 3 — 15 
Balance at December 31, 2023
$1,330 $2,182 $124 $10 $3,646 
(1)Measurement period adjustments related to prior year acquisitions.
(2)The amount was determined using the relative fair value approach. Goodwill impacted by the product moves announced in first quarter 2023 was assessed for impairment at the time of the reorganization.
Schedule of Finite Lived and Indefinite Lived Intangible Assets by Major Class
December 31, 2023December 31, 2022
(Dollars in millions)Estimated Useful Life in YearsGross Carrying ValueAccumulated AmortizationNet Carrying ValueGross Carrying ValueAccumulated AmortizationNet Carrying Value
Amortizable intangible assets:
Customer relationships10-25$1,149 $592 $557 $1,134 $535 $599 
Technology10-20527 356 171 505 331 174 
Other18-3787 34 53 110 32 78 
Indefinite-lived intangible assets:
Tradenames350 — 350 349 — 349 
Other7 — 7 10 — 10 
Total identified intangible assets$2,120 $982 $1,138 $2,108 $898 $1,210