ENVIRONMENTAL MATTERS AND ASSET RETIREMENT OBLIGATIONS (Tables)

6 Months Ended

Jun. 30, 2025

Accrual for Environmental Loss Contingencies Disclosure [Abstract]

Schedule of environmental liabilities, current and non-current

The Company's net environmental reserve for environmental contingencies, including remediation costs and asset retirement obligations, is included as part of "Other noncurrent assets", "Payables and other current liabilities", and "Other long-term liabilities" on the Unaudited Consolidated Statements of Financial Position as follows:


(Dollars in millions)	June 30, 2025		December 31, 2024
Environmental contingencies, current	$	15	$	15
Environmental contingencies, long-term	310		269
Total	$	325	$	284

Schedule of changes to environmental remediation liabilities

Changes in the reserves for environmental remediation liabilities during first six months 2025 and full year 2024 are summarized below:


(Dollars in millions)	Environmental Remediation Liabilities
Balance at December 31, 2023	$	252
Changes in estimates recognized in earnings and other	13
Cash reductions	(13)
Balance at December 31, 2024	252
Changes in estimates recognized in earnings and other	46
Cash reductions	(5)
Balance at June 30, 2025	$	293