Acquisitions, Divestitures and Closures - Other - Additional Information (Details) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2022 USD ($) Item	Dec. 31, 2022 USD ($) Item
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of long-lived assets sold		$ 71
AllianceHealth Clinton
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment charge recorded on the sale or closure of hospitals		$ 1
AllianceHealth Clinton | Clinton, Oklahoma
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of licensed beds | Item	56	56
AllianceHealth Woodward | Woodward, Oklahoma
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of licensed beds | Item	87	87
Impairment of long-lived assets sold	$ 8