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DISPOSITION OF ASSETS AND LIABILITIES - Narrative (Details) $ in Millions	1 Months Ended	3 Months Ended	9 Months Ended
	Jan. 31, 2024 hospital	Sep. 30, 2024 USD ($)	Sep. 30, 2024 USD ($) hospital	Sep. 30, 2025 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Asset held-for-sale				$ 62
Disposal Group, Disposed of by Sale, Not Discontinued Operations | SC Hospitals
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of hospitals for sale | hospital	3
Gain on sale of properties			$ 1,677
Income from continuing operations, before income taxes		$ (2)	1,687
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Ambulatory Surgery Centers
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of properties			$ 43
Number of ambulatory surgery centers for sale | hospital			3
Disposal Group, Disposed of by Sale, Not Discontinued Operations | AL Hospitals
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of hospitals for sale | hospital			5
Gain on sale of properties			$ 357
Discontinued Operations, Held-for-sale | OCLA CA Hospitals
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of hospitals for sale | hospital			4
Gain on sale of properties			$ 527
Discontinued Operations, Held-for-sale | Central CA Hospitals
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of hospitals for sale | hospital			2
Gain on sale of properties			$ 271

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Amount of assets held-for-sale that are not part of a disposal group.

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The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

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Amount before tax of income (loss) from an individually significant component disposed of or held-for-sale including the portion attributable to the noncontrolling interest. Excludes discontinued operations.

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