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v3.23.1

Long-Term Debt - Additional Information (Detail) $ in Millions | 1 Months Ended
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Jan. 31, 2023 USD ($)
Senior Secured Term Loan B Facility [Member] |
Debt Instrument [Line Items] |
Increase in revolving credit facility | $ 1,500
Senior Secured Revolving Credit Facility Maturing On June Thirty Two Thousand Twenty Six [Member] |
Debt Instrument [Line Items] |
Line of credit facility | $ 3,500

X
- Definition Line Of Credit Facility + References No definition available. + Details
Name: | hca_LineOfCreditFacility
Namespace Prefix: | hca_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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 No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of increase (decrease) of the credit facility. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(f)) -URI https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
Name: | us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=hca_SeniorSecuredTermLoanBFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=hca_SeniorSecuredRevolvingCreditFacilityMaturingOnJuneThirtyTwoThousandTwentySixMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |