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Basis of Presentation (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 USD ($)
AT&T [Member] |
Purchase Option, Percentage of Towers | 22.00%
T-Mobile [Member] |
Purchase Option, Percentage of Towers | 15.00%
Sprint assumed by T-Mobile [Member] |
Purchase Option, Percentage of Towers | 16.00%
Subject to Capital Lease with TMO or AT&T [Member] |
Purchase Option, Percentage of Towers | 53.00%
AT&T Prior to 2025 [Member] |
Purchase Option Price | $ 10
AT&T lease or sublease in accordance with TMO Agreement [Member] |
Purchase Option Price | $ 405
Tower count as a percentage of total towers | 1.00%
T-Mobile [Member] |
Purchase Option Price | $ 2,000
Period of tower lease | 28 years
Sprint assumed by T-Mobile [Member] |
Purchase Option Price | $ 2,300
Period of tower lease | 32 years
AT&T [Member] |
Purchase Option Price | $ 4,200
Period of tower lease | 28 years

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- Definition This disclosure represents the term of the Company’s ground lease agreements + References No definition available. + Details
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Data Type: | xbrli:stringItemType
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- Definition Purchase Option, Percentage of Towers + References No definition available. + Details
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Namespace Prefix: | cci_
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Balance Type: | na
Period Type: | instant

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- Definition This element relates to the total future purchase option price. + References No definition available. + Details
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Balance Type: | debit
Period Type: | duration

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- Definition Site count as a percentage of total sites + References No definition available. + Details
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Namespace Prefix: | cci_
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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

X
- Details
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Balance Type: |
Period Type: |

X
- Details
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Period Type: |

X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

X
- Details
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Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |