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ACCOUNTS RECEIVABLE - Schedule of Estimated Costs for Charity Care and Self-Pay Patients (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Accounts receivable and allowance for doubtful accounts
Estimated costs of caring	$ 144	$ 157	$ 421	$ 474
Uninsured patients
Accounts receivable and allowance for doubtful accounts
Estimated costs of caring	99	135	317	406
Charity care patients
Accounts receivable and allowance for doubtful accounts
Estimated costs of caring	$ 45	$ 22	$ 104	$ 68

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 20
-Name Accounting Standards Codification
-Section 40
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481628/310-20-40-7

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481990/310-10-45-2

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- Definition

Total expenses of a HCO before stop-loss insurance recoveries. Costs of services rendered (including costs of services rendered but not yet reported).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 954
-SubTopic 450
-Section 30
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478201/954-450-30-4

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 954
-SubTopic 450
-Section 30
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478201/954-450-30-3

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