Facilities under Medicare Probe reviews relating to Medicare services, billings and potential overpayments

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COMMITMENTS AND CONTINGENCIES (Details) $ in Millions	12 Months Ended
COMMITMENTS AND CONTINGENCIES (Details) $ in Millions	Dec. 31, 2024 USD ($) subsidiary	Dec. 31, 2023	Dec. 31, 2022
Concentration Risk [Line Items]
Litigation settlement, amount awarded to other party \| $	$ 48
Independent subsidiaries with multi-claim reviews scheduled or in process \| subsidiary	18
Accounts Receivable \| Customer Concentration Risk \| Total Medicaid and Medicare
Concentration Risk [Line Items]
Concentration percentage	52.90%	53.40%
Revenue \| Customer Concentration Risk \| Service revenue
Concentration Risk [Line Items]
Concentration percentage	100.00%	100.00%	100.00%
Revenue \| Customer Concentration Risk \| Total Medicaid and Medicare \| Service revenue
Concentration Risk [Line Items]
Concentration percentage	70.90%	72.60%	73.70%