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v3.25.3

Fair Value - Additional Information (Details) - USD ($) | Sep. 30, 2025 | Sep. 30, 2024
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Fair Value Disclosures [Abstract] |  |
Fair value, assets, level 1 to level 2 transfers, amount | $ 0 | $ 0
Fair value, assets, level 2 to level 1 transfers, amount | 0 | 0
Fair value, liabilities, level 1 to level 2 transfers, amount | 0 | 0
Fair value, liabilities, level 2 to level 1 transfers, amount | $ 0 | $ 0

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- Definition Fair value assets level 1 to level 2 transfer amount. + References No definition available. + Details
Name: | cyh_FairValueAssetsLevel1ToLevel2TransferAmount
Namespace Prefix: | cyh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Fair value assets level 2 to level 1 transfer amount. + References No definition available. + Details
Name: | cyh_FairValueAssetsLevel2ToLevel1TransferAmount
Namespace Prefix: | cyh_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Fair value liabilities level 1 to level 2 transfer amount. + References No definition available. + Details
Name: | cyh_FairValueLiabilitiesLevel1ToLevel2TransferAmount
Namespace Prefix: | cyh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value liabilities level 2 to level 1 transfer amount. + References No definition available. + Details
Name: | cyh_FairValueLiabilitiesLevel2ToLevel1TransferAmount
Namespace Prefix: | cyh_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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