COMMITMENTS, GUARANTEES AND CONTINGENCIES (Details)	1 Months Ended	3 Months Ended
	Dec. 31, 2022 state option_period beneficiary	Mar. 31, 2023 beneficiary state
T2017 East Region
Loss Contingencies [Line Items]
Number of states comprising TRICARE beneficiaries | state		32
Number of TRICARE beneficiaries | beneficiary		6,000,000
T-5, Effective 2024
Loss Contingencies [Line Items]
Number of TRICARE managed care support contract beneficiaries | beneficiary	4,600,000
Number of states comprising of TRICARE managed care support contract beneficiaries | state	24
Contract base term	1 year
Annual option periods | option_period	8
Contract term with exercises	9 years
Medicare
Loss Contingencies [Line Items]
Percentage of premiums and services revenue		84.00%
Medicaid
Loss Contingencies [Line Items]
Percentage of premiums and services revenue		7.00%
Military services | T2017 East Region
Loss Contingencies [Line Items]
Percentage of premiums and services revenue		1.00%