ENVIRONMENTAL LIABILITIES AND EXPENDITURES (Details)	1 Months Ended				3 Months Ended
	Dec. 31, 2022 USD ($) party	Sep. 30, 2021 USD ($) mi	Jun. 30, 2018 USD ($)	Mar. 31, 2016 mi	Mar. 31, 2023 USD ($) site segment	Sep. 30, 2016 party
Environmental remediation reserves
Number of Sites | site					161
Current portion of environmental remediation liabilities					$ 141,000,000
Environmental loss contingency, statement of financial position					Environmental remediation reserves, non-current, included in deferred credits and other liabilities - other, Accrued liabilities
Environmental remediation reserves, non-current, included in deferred credits and other liabilities - other	$ 905,000,000				$ 890,000,000
Remediation Balance					1,031,000,000
Environmental reserves, exceeding $ ten million, threshold value					$ 10,000,000
Environmental reserves, exceeding $ ten million, threshold value, number of sites | site					17
Environmental reserves, range between zero to $ one million site category, number of sites | site					95
Percent of reserve to be funded over the next three to four years					40.00%
Period of expending remaining environmental reserves (or more)					10 years
Environmental remediation additional loss range					$ 2,700,000,000
Subsidiaries
Environmental remediation reserves
Number of Sites | site					161
Low end of range
Environmental remediation reserves
Environmental reserves, range between zero to $ one million site category					$ 0
Period of expending first half of environmental reserves					3 years
High end of range
Environmental remediation reserves
Environmental reserves, range between zero to $ one million site category					$ 1,000,000
Period of expending first half of environmental reserves					4 years
NPL Sites
Environmental remediation reserves
Number of Sites | site					30
Remediation Balance					$ 440,000,000
Non-National Priorities List Sites
Environmental remediation reserves
Environmental remediation contingency, number of site categories | site					3
Third-Party Sites
Environmental remediation reserves
Number of Sites | site					67
Remediation Balance					$ 231,000,000
Currently Operated Sites
Environmental remediation reserves
Number of Sites | site					13
Remediation Balance					$ 103,000,000
Closed or Non-Operated Sites
Environmental remediation reserves
Number of Sites | site					51
Remediation Balance					$ 257,000,000
Diamond Alkali Superfund Site
Environmental remediation reserves
Site contingency, number of operating units | segment					4
Diamond Alkali Superfund Site - Operable Unit Two
Environmental remediation reserves
Stretch of lower passaic river requiring remedial actions | mi				8.3
Number of parties notified to pay the cost | party						100
Environmental remediation expense			$ 1,400,000,000
Diamond Alkali Superfund Site - Operable Unit Four
Environmental remediation reserves
Stretch of lower passaic river requiring remedial actions | mi		17
Environmental remediation expense		$ 440,000,000
Stretch of lower passaic river not covered by remedial actions | mi		9
Financial assurance					$ 93,000,000
Alden Leeds
Environmental remediation reserves
Number of parties, settled | party	85
Alden Leeds | Alden Leeds
Environmental remediation reserves
Environmental remediation expense	$ 150,000,000
Financial assurance					$ 93,000,000
Number of parties, settled | party	85