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ENVIRONMENTAL MATTERS AND ASSET RETIREMENT OBLIGATIONS (Tables)

6 Months Ended

Jun. 30, 2022

Accrual for Environmental Loss Contingencies Disclosure [Abstract]

Schedule of environmental liabilities, current and non-current

(Dollars in millions)			June 30, 2022						December 31, 2021
Environmental contingencies, current			$	10					$	20
Environmental contingencies, long-term			267						261
Total			$	277					$	281

Schedule of changes to environmental remediation liabilities

Changes in the reserves for environmental remediation liabilities during first six months 2022 and full year 2021 are summarized below:

(Dollars in millions)			Environmental Remediation Liabilities
Balance at December 31, 2020			$	257
Changes in estimates recognized in earnings and other			9
Cash reductions			(13)
Balance at December 31, 2021			253
Changes in estimates recognized in earnings and other			4
Cash reductions			(8)
Balance at June 30, 2022			$	249

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Roll Forward Of Environmental Remediation Liabilities [Table Text Block]

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Schedule Of Environmental Liabilities Balance Sheet Line Items [Table Text Block]

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