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CONTINGENCIES (Details) cubic_yard in Millions, $ in Millions |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 19, 2024 USD ($) | Apr. 07, 2023 USD ($) | Mar. 02, 2023 company mi | Dec. 16, 2022 USD ($) company | Feb. 11, 2022 mi | Sep. 28, 2021 USD ($) | Dec. 04, 2020 USD ($) | Oct. 10, 2018 mi | Jun. 30, 2018 USD ($) municipality company mi | Mar. 30, 2017 mi | Sep. 30, 2016 mi | Mar. 31, 2016 company mi | Mar. 04, 2016 USD ($) cubic_yard mi | Apr. 11, 2014 mi | May 31, 2007 company mi | Jun. 29, 2024 USD ($) site | Jun. 29, 2024 USD ($) site mi | Dec. 30, 2023 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Penalty charge | $ 32.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Superfund sites | site |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 23 | 23 |
Reserve for environmental remediation costs, current |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 257.8 | $ 257.8 |
Environmental remediation costs deemed probable and reasonably estimable |  |  |  | $ 150.0 |  | $ 441.0 |  |  |  |  |  |  | $ 1,400.0 |  |  |  |  |
Other assets, miscellaneous |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 17.1 | $ 17.1 |
Environmental remediation, period construction of treatment facility to be maintained (in years) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30 years |
Number of miles of river | mi |  |  | 9 |  | 17 |  |  | 9 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 17 |  | 17 |
Cubic yards of settlement | cubic_yard |  |  |  |  |  |  |  |  |  |  |  |  | 3.5 |  |  |  |  |
Approximate implementation time |  |  |  |  |  |  |  |  |  |  |  |  | 6 years |  |  |  |  |
Number of companies named in suit | company |  |  |  |  |  |  |  |  | 100 |  |  |  |  |  |  |  |  |
Estimated costs of remediation |  |  |  |  |  |  |  |  | $ 165.0 |  |  |  |  |  |  |  |  |
Number of municipalities, suit filed | municipality |  |  |  |  |  |  |  |  | 42 |  |  |  |  |  |  |  |  |
Number of other parties notified | company |  |  |  |  |  |  |  |  |  |  |  | 105 |  |  |  |  |  |
Number of parties | company |  |  | 40 | 85 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental exit costs anticipated cost, percentage |  |  |  | 99.40% |  |  |  |  |  |  |  |  |  |  |  |  |  |
YPF And Repsol |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Litigation settlement, amount |  | $ 573.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lower Passaic Cooperating Parties Group |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of companies | company |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 47 |  |  |
YPF And Repsol | Lower Passaic Cooperating Parties Group |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Litigation settlement, amount awarded from other party |  | $ 9.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental remediation costs deemed probable and reasonably estimable |  |  |  |  |  |  | $ 420.0 |  |  |  |  |  |  |  |  |  |  |
Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental remediation costs deemed probable and reasonably estimable |  |  |  |  |  |  | $ 468.0 |  |  |  |  |  |  |  |  |  |  |
Property, Plant and Equipment, Other Types |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental remediation costs, reserve |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 274.9 | $ 274.9 | $ 124.5
Reserve for environmental remediation costs, current |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 49.1 | 49.1 |
Reserve for environmental remediation costs, noncurrent |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 225.8 | 225.8 |
Accrual for environmental loss contingencies, obligation after EPA funding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.5 | 0.5 |
Environmental remediation expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 27.6 |
Property, Plant and Equipment, Other Types | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental remediation costs deemed probable and reasonably estimable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 186.8 |
Property, Plant and Equipment, Other Types | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental remediation costs deemed probable and reasonably estimable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 406.5 |
Centredale Site |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reasonably possible additional loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 142.3 |  |
Environmental remediation costs deemed probable and reasonably estimable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 164.6 |

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