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Business and Summary of Significant Accounting Policies - Charity Care, Uninsured Discounts and Other Adjustments to Revenue - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2024
Minimum |
Summary Of Business And Significant Accounting Policies [Line Items] |
Patients treated at hospitals for non elective services gross income federal poverty guidelines | 200.00%
Maximum |
Summary Of Business And Significant Accounting Policies [Line Items] |
Patients treated at hospitals for non elective services gross income federal poverty guidelines | 400.00%

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- Definition Patients treated at hospitals for nonelective care income specified percentage of federal poverty level eligible for charity care. + References No definition available. + Details
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Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Summary of business and significant accounting policies. + References No definition available. + Details
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Namespace Prefix: | uhs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |