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Commitments and Contingencies Tower purchase option (Details) | Dec. 31, 2021
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Subject to Capital Lease with TMO or AT&T [Member] |
Purchase Option, Percentage of Towers | 53.00%

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- Definition Purchase Option, Percentage of Towers + References No definition available. + Details
Name: | cci_PurchaseOptionPercentageofTowers
Namespace Prefix: | cci_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | cci_ContractualTermsAxis=cci_SubjectToCapitalLeaseWithTMOOrATTMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |