COMMITMENTS AND CONTINGENCIES - Narrative (Details)	1 Months Ended							3 Months Ended
	Mar. 31, 2023 USD ($) defendant	Dec. 31, 2020 case	Jul. 31, 2018 defendant	Dec. 31, 2017	Sep. 30, 2017 well	Mar. 31, 2016 mi	May 31, 2007 entity mi	Mar. 31, 2024 USD ($) facility case	Jun. 30, 2022	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Nov. 30, 2017 case
Loss Contingencies [Line Items]
Lease liabilities	$ 646,300,000							$ 581,800,000		$ 583,800,000
Reclamation/restoration requirements	311,900,000							325,700,000		$ 324,100,000	$ 311,300,000
Number of groundwater extraction wells | well					2
Contingency loss								0
Hewitt Landfill Matter | NHW Treatment System
Loss Contingencies [Line Items]
Estimated capital cost of treatment system								92,000,000
Bond money obtained for treatment system								46,000,000
Hewitt Landfill Matter | NHC Treatment System
Loss Contingencies [Line Items]
Estimated capital cost of treatment system								245,000,000
Bond money obtained for treatment system								$ 95,000,000
Vulcan Material
Loss Contingencies [Line Items]
Judge ruled allocation of fault among defendants, percentage		15.00%		15.00%					15.00%
Texas Brine
Loss Contingencies [Line Items]
Number of pending claims | case												3
Number of cases, reversed judgement | case		1
Cases Allegedly Involving 1,1,1-Trichloroethane
Loss Contingencies [Line Items]
Number of cases | case								29
New York Water District Cases
Loss Contingencies [Line Items]
Number of cases | case								28
New Jersey Natural Resources Damages Case
Loss Contingencies [Line Items]
Number of cases | case								1
Lawsuit Against CalMat Co
Loss Contingencies [Line Items]
Charge for litigation matter	11,000,000
Estimated construction and operation of water treatment system	$ 100,000,000
Cooperating Parties Group
Loss Contingencies [Line Items]
Number of other companies to perform Remedial Investigation/Feasibility Study | entity							70
Number of miles of the River used in the Remedial Investigation/Feasibility Study | mi							17
Number of miles for bank-to-bank dredging remedy | mi						8
EPA | Maximum
Loss Contingencies [Line Items]
Estimated implementation costs								$ 1,380,000,000
Occidental Chemical Co
Loss Contingencies [Line Items]
Judge ruled allocation of fault among defendants, percentage		30.00%		50.00%
Occidental Chemical Co | Lawsuit Filed By Occidental
Loss Contingencies [Line Items]
Number of defendants | defendant	39		100
Texas Brine
Loss Contingencies [Line Items]
Judge ruled allocation of fault among defendants, percentage		55.00%		35.00%
LADWP
Loss Contingencies [Line Items]
Number of planned new treatment capabilities | facility								2
Supported By Line Of Credit
Loss Contingencies [Line Items]
Letters of credit outstanding, amount								$ 89,200,000