COMMITMENTS AND CONTINGENCIES (Narrative) (Details) $ in Thousands	1 Months Ended							3 Months Ended
	Mar. 31, 2023 USD ($) item	Dec. 31, 2020	Jul. 31, 2018 item	Dec. 31, 2017	Sep. 30, 2017 item	Mar. 31, 2016 mi	May 31, 2007 entity mi	Mar. 31, 2023 USD ($) item	Jun. 30, 2022	Dec. 31, 2021 USD ($) item	Dec. 31, 2022 USD ($)	Mar. 31, 2022 USD ($)
Loss Contingencies [Line Items]
Asset retirement obligations	$ 311,900							$ 311,900		$ 315,200	$ 311,300	$ 319,700
Number of groundwater extraction wells | item					2
Contingency loss								0
Lease liabilities	646,300							$ 646,300			$ 653,600	$ 770,500
Vulcan Material [Member]
Loss Contingencies [Line Items]
Judge ruled allocation of fault among defendants, percentage		15.00%		15.00%					15.00%
Lawsuit Against CalMat Co [Member]
Loss Contingencies [Line Items]
Charge for litigation matter	11,000
Estimated construction and operation of water treatment system	$ 100,000
Cases Allegedly Involving 1,1,1-Trichloroethane [Member]
Loss Contingencies [Line Items]
Number of cases | item								29
New York Water District Cases [Member]
Loss Contingencies [Line Items]
Number of cases | item								28
New Jersey Natural Resources Damages Case [Member]
Loss Contingencies [Line Items]
Number of cases | item								1
Cooperating Parties Group [Member]
Loss Contingencies [Line Items]
Number of other companies to perform a Remedial Investigation/ Feasibility Study related to the Lower Passaic River Clean-Up lawsuit | 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
Occidental Chemical Co [Member]
Loss Contingencies [Line Items]
Judge ruled allocation of fault among defendants, percentage		30.00%		50.00%
Occidental Chemical Co [Member] | Lawsuit Filed By Occidental [Member]
Loss Contingencies [Line Items]
Number of defendants | item	39		100
Texas Brine [Member]
Loss Contingencies [Line Items]
Judge ruled allocation of fault among defendants, percentage		55.00%		35.00%
LADWP [Member]
Loss Contingencies [Line Items]
Number of planned new treatment capabilities | item										2
Maximum [Member] | EPA [Member]
Loss Contingencies [Line Items]
Estimated implementation costs								$ 1,380,000
Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Outstanding standby letters of credit	$ 83,200							$ 83,200