ENVIRONMENTAL LIABILITIES AND EXPENDITURES (Tables)

12 Months Ended

Dec. 31, 2023

Environmental Remediation Obligations [Abstract]

Schedule of current and non-current environmental remediation reserves by categories of sites

	2023			2022
millions, except number of sites	Number of Sites	Remediation Balance		Number of Sites	Remediation Balance
NPL Sites	32	$	435	30	$	445
Third-Party Sites	65	233		68	238
Currently Operated Sites	12	98		13	106
Closed or Non-operated Sites	51	255		51	257
Total	160	$	1,021	162	$	1,046