XML 42 R31.htm IDEA: XBRL DOCUMENT
v3.21.2

Basis of Presentation and Significant Accounting Policies - Schedule of Estimated Cost of Uncompensated Care (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Accounting Policies [Abstract] |  |  |  |
Patient care costs (salaries and benefits, supplies, other operating expenses and depreciation and amortization) | $ 12,803 | $ 11,170 | $ 36,396 | $ 32,428
Cost-to-charges ratio (patient care costs as percentage of gross patient charges) | 11.80% | 12.00% | 11.40% | 12.10%
Total uncompensated care | $ 7,782 | $ 7,023 | $ 22,299 | $ 21,625
Multiply by the cost-to-charges ratio | 11.80% | 12.00% | 11.40% | 12.10%
Estimated cost of total uncompensated care | $ 916 | $ 843 | $ 2,542 | $ 2,617

X
- Definition Cost-to-charges ratio. + References No definition available. + Details
Name: | hca_CostToChargesRatio
Namespace Prefix: | hca_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Estimated cost of uncompensated care. + References No definition available. + Details
Name: | hca_EstimatedCostOfUncompensatedCare
Namespace Prefix: | hca_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Patient care costs. + References No definition available. + Details
Name: | hca_PatientCareCosts
Namespace Prefix: | hca_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Uncompensated care. + References No definition available. + Details
Name: | hca_UncompensatedCare
Namespace Prefix: | hca_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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