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ACCRUED WORKERS' COMPENSATION COSTS - Summary of Workers' Compensation Liabilities (Details) - USD ($) $ in Millions | Mar. 31, 2023 | Dec. 31, 2022 | Mar. 31, 2022 | Dec. 31, 2021
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Insurance [Abstract] |  |  |  |
Total accrued costs, end of period | $ 187 | $ 189 | $ 199 | $ 198
Collateral paid to carriers and offset against accrued costs | (6) | (7) |  |
Total accrued costs, net of carrier collateral offset | 181 | 182 |  |
Payable in less than 1 year (net of collateral paid to carriers) | 54 | 54 |  |
Payable in more than 1 year (net of collateral paid to carriers) | 127 | 128 |  |
Total accrued costs, net of carrier collateral offset | 181 | 182 |  |
Net of collateral paid to carriers, payable in less than one year | (2) | (2) |  |
Net of collateral paid to carriers, payable in more than 1 year | $ (4) | $ 5 |  |

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- Definition Collateral Paid to Insurance Carriers, Net of Workers' Compensation Loss Reserves, Current + References No definition available. + Details
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- Definition Sum of adjustments to the estimated reserve for unpaid claims and claims adjustment expense. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 40 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=116884095&loc=d3e14764-158437 + Details
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