XML 66 R38.htm IDEA: XBRL DOCUMENT v3.24.0.1
ENVIRONMENTAL MATTERS (Tables)
12 Months Ended
Dec. 31, 2023
Environmental Matters [Abstract]  
Schedule of Environmental Liabilities, Current and Non-current
(Dollars in millions)December 31,
20232022
Environmental contingencies, current$10 $10 
Environmental contingencies, long-term274 264 
Total$284 $274 
Schedule of Changes to Environmental Remediation Liabilities
(Dollars in millions)Environmental Remediation Liabilities
Balance at December 31, 2021
$253 
Changes in estimates recognized in earnings and other
Cash reductions(14)
Balance at December 31, 2022
245 
Changes in estimates recognized in earnings and other19 
Cash reductions(12)
Balance at December 31, 2023
$252