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INCOME TAXES
 6 Months Ended
Jun. 30, 2024
Income Tax Disclosure [Abstract]  
PROVISION FOR INCOME TAXES INCOME TAXES
 Second QuarterFirst Six Months
(Dollars in millions)2024202320242023
$%$%$%$%
Provision for (benefit from) income taxes and tax rate
$56 20 %$(3)(1)%$105 21 %$57 12 %

Second quarter and first six months 2024 provision for income taxes includes a decrease due to the Company's mix of earnings, partially offset by an increase related to uncertain tax positions. Second quarter and first six months 2023 provision for income taxes includes a $51 million decrease due to state tax law changes that were enacted in second quarter 2023 that extended the carryforward period to utilize existing state tax credits. Additionally, first six months 2023 provision for income taxes includes a $23 million increase as a result of state guidance issued in first quarter 2023 interpreting certain provisions of the 2017 Tax Cuts and Jobs Act (the "Tax Reform Act").

At June 30, 2024 and December 31, 2023, Eastman had $345 million and $320 million, respectively, in unrecognized tax benefits. At June 30, 2024, it is reasonably possible that, as a result of the resolution of federal, state, and foreign examinations and appeals, and the expiration of various statutes of limitation, the total amounts of unrecognized tax benefits could decrease by up to $140 million within the next 12 months.