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EMPLOYEE BENEFITS - Schedule of Long-term Rates of Return on Pension and PBOP (Details) | Dec. 31, 2023 | Dec. 31, 2022
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United States |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) |  | 15.00%
Assumed Rate of Return (in percent) | 8.50% | 8.50%
United States | Pension Plan |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 0.00% |
United States | PBOP |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 20.00% |
Global |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) |  | 10.00%
Assumed Rate of Return (in percent) | 8.75% | 8.75%
Global | Pension Plan |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 20.00% |
Global | PBOP |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 0.00% |
Non-United States |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) |  | 8.00%
Assumed Rate of Return (in percent) | 8.50% | 8.50%
Non-United States | Pension Plan |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 0.00% |
Non-United States | PBOP |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 11.00% |
Emerging Markets |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) |  | 4.00%
Assumed Rate of Return (in percent) | 10.00% | 10.00%
Emerging Markets | Pension Plan |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 0.00% |
Emerging Markets | PBOP |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 6.00% |
Fixed Income |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) |  | 13.00%
Assumed Rate of Return (in percent) | 5.50% | 4.00%
Fixed Income | Pension Plan |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 16.00% |
Fixed Income | PBOP |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 17.00% |
Public High Yield Fixed Income |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) |  | 4.00%
Assumed Rate of Return (in percent) | 7.50% | 6.50%
Public High Yield Fixed Income | Pension Plan |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 5.00% |
Public High Yield Fixed Income | PBOP |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 0.00% |
United States Treasuries |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) |  | 0.00%
Assumed Rate of Return (in percent) | 4.50% | 0.00%
United States Treasuries | Pension Plan |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 11.00% |
United States Treasuries | PBOP |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 0.00% |
Private Debt |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) |  | 13.00%
Assumed Rate of Return (in percent) | 10.00% | 9.00%
Private Debt | Pension Plan |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 10.00% |
Private Debt | PBOP |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 13.00% |
Private Equity |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) |  | 18.00%
Assumed Rate of Return (in percent) | 12.00% | 12.00%
Private Equity | Pension Plan |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 23.00% |
Private Equity | PBOP |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 18.00% |
Real Assets |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) |  | 15.00%
Assumed Rate of Return (in percent) | 7.50% | 7.50%
Real Assets | Pension Plan |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 15.00% |
Real Assets | PBOP |  |
Defined Contribution Plan Disclosure [Line Items] |  |
Target Asset Allocation (in percent) | 15.00% |

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