ENVIRONMENTAL LIABILITIES AND EXPENDITURES (Tables)

12 Months Ended

Dec. 31, 2022

Environmental Remediation Obligations [Abstract]

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

	2022			2021
millions, except number of sites	Number of Sites	Remediation Balance		Number of Sites	Remediation Balance
NPL sites	30	$	445	30	$	427
Third-Party Sites	68	238		69	273
Currently Operated Sites	13	106		15	122
Closed or Non-operated Sites	51	257		51	277
Total	162	$	1,046	165	$	1,099