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v3.22.2.2

Dispositions and Acquisitions - Additional Information (Detail) $ in Millions | 1 Months Ended | 9 Months Ended
--- | --- | ---
Aug. 31, 2022 USD ($) | Sep. 30, 2022 USD ($) | Sep. 30, 2021 USD ($) Bed
Business Acquisition [Line Items] |  |  |
Acquisition, cash paid |  | $ 19 |
Aggregate cash proceeds from divestiture of businesses |  | $ 12 | $ 21
Washington, District of Columbia |  |  |
Business Acquisition [Line Items] |  |  |
Acquisition, cash paid | $ 51 |  |
Washington, District of Columbia | Hospital |  |  |
Business Acquisition [Line Items] |  |  |
Non-controlling ownership interests by subsidiaries | 20.00% | 100.00% |
Nevada |  |  |
Business Acquisition [Line Items] |  |  |
Acquisition, cash paid |  |  | $ 39
Number of beds available in micro-hospital | Bed |  |  | 22

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