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v3.22.1

Basis of Presentation and Significant Accounting Policies - Additional Information (Detail) $ in Millions | 1 Months Ended | 3 Months Ended
--- | --- | ---
Nov. 30, 2017 | Mar. 31, 2022 USD ($) Hospital EndoscopyCenter State SurgeryCenter | Mar. 31, 2021 USD ($)
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of owned and operated hospitals | Hospital |  | 182 |
Number of freestanding surgery centers | SurgeryCenter |  | 124 |
Number of freestanding endoscopy centers | EndoscopyCenter |  | 21 |
Number of facilities locations | State |  | 20 |
General and administrative expense |  | $ 95 | $ 87
Charity care amount |  | 3,458 | 2,942
Estimated costs of charity care |  | 391 | 335
Revenues |  | $ 14,945 | $ 13,977
Inpatient Services [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Performance obligations for inpatient/ outpatient services satisfied period |  | Our performance obligations for inpatient services are generally satisfied over periods that average approximately five days, and revenues are recognized based on charges incurred in relation to total expected charges |
Centers for Medicare and Medicaid Services ("CMS") [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Revenues |  | $ 244 |
Maximum [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Percentage of income of federal poverty level eligible for charity care | 400.00% |  |
Maximum [Member] | Outpatient Services [Member] |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Performance obligations for inpatient/ outpatient services satisfied period |  | Our performance obligations for outpatient services are generally satisfied over a period of less than one day |

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