Investment in Unconsolidated Ventures (Details) - Healthcare Services Venture - Variable Interest Entity, Not Primary Beneficiary $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2023 USD ($)	Sep. 30, 2023 USD ($)
Investments in and Advances to Affiliates [Line Items]
Ownership percentage (as a percent)		20.00%
Maximum exposure to loss	$ 54.1	$ 54.1
Contribution to venture	$ 7.5
HCA Healthcare, Inc.
Investments in and Advances to Affiliates [Line Items]
Ownership percentage (as a percent)		80.00%

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The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph b
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481203/810-10-50-4

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-SubTopic 10
-Section 50
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-Publisher FASB
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-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481203/810-10-50-5A

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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (d)
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-URI https://asc.fasb.org//1943274/2147481203/810-10-50-5A

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