COMMITMENTS AND CONTINGENCIES (Narrative) (Details)		1 Months Ended				12 Months Ended
	Dec. 30, 2020	Dec. 31, 2017	Sep. 30, 2017 item	Mar. 31, 2016 mi	May 31, 2007 entity mi	Dec. 31, 2021 USD ($) item	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Loss Contingencies [Line Items]
Expenditures under the noncapital purchase commitments						$ 53,400,000	$ 87,400,000	$ 87,000,000.0
Commitments of minimum royalties under mineral leases						253,800,000
Expenditures for mineral royalties under mineral leases						90,400,000	81,500,000	84,800,000
Asset retirement obligations						315,200,000	283,200,000	210,300,000
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
Judge ruled allocation of fault among defendants, percentage	15.00%
Contingency loss						0
Net insurance liabilities						130,500,000	74,100,000
Unrecognized tax benefits						10,800,000	6,800,000	$ 5,400,000	$ 3,700,000
Lease liabilities						787,600,000	$ 442,700,000
Vulcan Material [Member]
Loss Contingencies [Line Items]
Judge ruled allocation of fault among defendants, percentage		15.00%
Property, Plant and Equipment [Member]
Loss Contingencies [Line Items]
Unconditional purchase obligations						18,200,000
Noncapital [Member]
Loss Contingencies [Line Items]
Unconditional purchase obligations						$ 67,500,000
New York Water District Cases [Member]
Loss Contingencies [Line Items]
Number of cases | item						27
Cooperating Parties Group [Member]
Loss Contingencies [Line Items]
Number of miles for bank-to-bank dredging remedy | mi				8
Texas Brine and Occidental Chemical Co [Member]
Loss Contingencies [Line Items]
Judge ruled allocation of fault among defendants, percentage	20.00%
Occidental Chemical Co [Member]
Loss Contingencies [Line Items]
Judge ruled allocation of fault among defendants, percentage	30.00%	50.00%
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						$ 1,380,000,000
Standby Letters of Credit [Member]
Loss Contingencies [Line Items]
Outstanding standby letters of credit						$ 84,400,000
Hewitt Landfill Matter [Member]
Loss Contingencies [Line Items]
Number of groundwater extraction wells | item			2