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Segment Data (Narrative) (Details) $ in Billions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2024 USD ($) segment | Jun. 30, 2023 | Dec. 31, 2023 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Number of business segments | segment | 2 |  |
Number of reportable segments | segment | 2 |  |
Domestic Site Leasing [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-lived assets | $ 5.4 |  | $ 5.4
International Site Leasing [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-lived assets | 3.1 |  | 3.4
Brazil [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Long-lived assets | $ 1.8 |  | $ 2.1
Foreign Countries, Other than Brazil [Member] | Long-Lived Assets [Member] | Maximum [Member] | Geographic Concentration Risk [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Concentration risk percentage | 5.00% | 5.00% |

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