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INCOME TAXES
9 Months Ended
Sep. 30, 2020
Income Tax Disclosure [Abstract]  
PROVISION FOR INCOME TAXES INCOME TAXES
 Third QuarterFirst Nine Months
(Dollars in millions)2020201920202019
$%$%$%$%
Provision for income taxes and tax rate$25 13 %$46 15 %$50 10 %$158 18 %

First nine months 2020 effective tax rate included a $19 million decrease to the provision for income taxes as a result of a decrease in unrecognized tax positions and a $7 million decrease to the provision for income taxes related to adjustments to certain prior year tax returns. Third quarter and first nine months 2019 effective tax rates included adjustments to the tax provision to reflect amendments to and finalization of prior year's income tax returns.

At September 30, 2020 and December 31, 2019, Eastman had $194 million and $202 million, respectively, in unrecognized tax benefits. At September 30, 2020, 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 $10 million to $55 million within the next 12 months.