XML 56 R44.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Business and Summary of Significant Accounting Policies - Accounting for Derivative Financial Investments and Hedging Activities and Foreign Currency Forward Exchange Contracts - Additional Information (Detail) - USD ($) | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Summary Of Business And Significant Accounting Policies [Line Items] |  |  |
Cash flow hedges | $ 0 | $ 0 | $ 0

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

X
- Definition Net fair value of all derivative instruments designated as cash flow hedging instruments, which is ordinarily reflected within other comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 5 -SubTopic 10 -Topic 815 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480463/815-10-45-5 + Details
Name: | us-gaap_CashFlowHedgesDerivativeInstrumentsAtFairValueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant