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ENVIRONMENTAL MATTERS AND ASSET RETIREMENT OBLIGATIONS
 9 Months Ended
Sep. 30, 2020
Accrual for Environmental Loss Contingencies Disclosure [Abstract]  
Environmental Matters ENVIRONMENTAL MATTERS AND ASSET RETIREMENT OBLIGATIONS
Certain Eastman manufacturing facilities generate hazardous and nonhazardous wastes, the treatment, storage, transportation, and disposal of which are regulated by various governmental agencies. In connection with the cleanup of various hazardous waste sites, the Company, along with many other entities, has been designated a potentially responsible party ("PRP") by the U.S. Environmental Protection Agency under the Comprehensive Environmental Response, Compensation and Liability Act, which potentially subjects PRPs to joint and several liability for certain cleanup costs. In addition, the Company will incur costs for environmental remediation and closure and post-closure under the federal Resource Conservation and Recovery Act. Reserves for environmental contingencies have been established in accordance with Eastman's policies described in Note 1, "Significant Accounting Policies", to the consolidated financial statements in Part II, Item 8 of the Company's 2019 Annual Report on Form 10-K. The resolution of uncertainties related to environmental matters included in other liabilities may have a material adverse effect on the Company's consolidated results of operations in the period recognized, however, because of the availability of legal defenses, the Company's preliminary assessment of actions that may be required, and, if applicable, the expected sharing of costs, management does not believe that the Company's liability for these environmental matters, individually or in the aggregate, will be material to the Company's consolidated financial position, results or operations, or cash flows. The Company's total reserve for environmental loss contingencies was $287 million at both September 30, 2020 and December 31, 2019.

Environmental Remediation and Environmental Asset Retirement Obligations

The Company's total environmental reserve that management believes to be probable and reasonably estimable for environmental contingencies, including remediation costs and asset retirement obligations, is included as part of "Payables and other current liabilities" and "Other long-term liabilities" in the Unaudited Consolidated Statements of Financial Position as follows:
(Dollars in millions)September 30, 2020December 31, 2019
Environmental contingent liabilities, current$15 $20 
Environmental contingent liabilities, long-term272 267 
Total$287 $287 

Environmental Remediation

Estimated future environmental expenditures for undiscounted remediation costs ranged from the best estimate or minimum of $260 million to the maximum of $504 million at September 30, 2020 and from the best estimate or minimum of $260 million to the maximum of $487 million at December 31, 2019. The best estimate or minimum estimated future environmental expenditures are considered to be probable and reasonably estimable and include the amounts recognized at both September 30, 2020 and December 31, 2019.
Reserves for environmental remediation include liabilities expected to be paid within approximately 30 years. The amounts charged to pre-tax earnings for environmental remediation and related charges are included within "Cost of sales" in the Unaudited Consolidated Statements of Earnings, Comprehensive Income and Retained Earnings. Changes in the reserves for environmental remediation liabilities during first nine months 2020 and full year 2019 are summarized below:
(Dollars in millions)Environmental Remediation Liabilities
Balance at December 31, 2018$271 
Changes in estimates recognized in earnings and other4 
Cash reductions(15)
Balance at December 31, 2019260 
Changes in estimates recognized in earnings and other9 
Cash reductions(9)
Balance at September 30, 2020$260 

Environmental Asset Retirement Obligations

An asset retirement obligation is an obligation for the retirement of a tangible long-lived asset that is incurred upon the acquisition, construction, development, or normal operation of that long-lived asset. The Company recognizes asset retirement obligations in the period in which they are incurred if a reasonable estimate of fair value can be made. The asset retirement obligations are discounted to expected present value and subsequently adjusted for changes in fair value. The associated estimated asset retirement costs are capitalized as part of the carrying value of the long-lived assets and depreciated over their useful life. Environmental asset retirement obligations consist primarily of closure and post-closure costs. For sites that have environmental asset retirement obligations, the best estimate recognized to date for these environmental asset retirement obligation costs was $27 million at both September 30, 2020 and December 31, 2019. 

Non-Environmental Asset Retirement Obligations

The Company has contractual asset retirement obligations not associated with environmental liabilities. Eastman's non-environmental asset retirement obligations are primarily associated with the future closure of leased manufacturing assets at Pace, Florida and Oulu, Finland. These recognized non-environmental asset retirement obligations were $50 million and $48 million at September 30, 2020 and December 31, 2019, respectively, and is included as part of "Other long-term liabilities" in the Unaudited Consolidated Statements of Financial Position.