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EMPLOYEE BENEFIT PLANS AND POSTRETIREMENT BENEFITS - Additional Information (Details) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Apr. 16, 2018 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |
Reduction of plan liability | $ 527 |  |  |  |  | $ 100
Amortization period of retirement benefits payable | 4 years 6 months |  |  |  |  | 4 years
2018 Modification of Healthcare Plan | Operating segments | Industrial Activities |  |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |
Benefits modification amortization |  |  | $ 30 |  | $ 60 |
2021 Modification of Healthcare Plan | Operating segments | Industrial Activities |  |  |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |  |  |
Reduction of plan liability |  |  |  | $ 101 |  |
Amortization period of retirement benefits payable |  |  |  | 4 years |  |
Benefits modification amortization |  | $ 6 | $ 6 | $ 12 | $ 12 |

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- Definition Amount of increase (decrease) in benefit obligation of defined benefit plan from change in terms of existing plan or initiation of new plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(7) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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