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Intangible Assets, Goodwill and Other (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Goodwill and Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross | $ 7,992 | $ 7,993 |
Accumulated amortization of intangible assets | (5,211) | (4,814) |
Finite-Lived Intangible Assets, Net | 2,781 | 3,179 |
Amortization expense | 397 | 447 | $ 446
Estimated annual amortization expense related to intangible assets - Year 1 | 375 |  |
Estimated annual amortization expense related to intangible assets - Year 2 | 371 |  |
Estimated annual amortization expense related to intangible assets - Year 3 | 288 |  |
Estimated annual amortization expense related to intangible assets - Year 4 | 284 |  |
Estimated annual amortization expense related to intangible assets - Year 5 | 284 |  |
Goodwill | 5,127 | 10,085 | 10,085
Goodwill Impairment | 4,958 | 0 | 0
Fiber [Member] |  |  |
Goodwill and Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill | 0 | 4,958 | 4,958
Goodwill Impairment | 4,958 |  |
Towers [Member] |  |  |
Goodwill and Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill | 5,127 | 5,127 | $ 5,127
Goodwill Impairment | 0 |  |
Site Rental Contracts and Customer Relationships [Member] |  |  |
Goodwill and Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross | 7,879 | 7,880 |
Accumulated amortization of intangible assets | (5,152) | (4,758) |
Finite-Lived Intangible Assets, Net | 2,727 | 3,122 |
Other Intangible Assets [Member] |  |  |
Goodwill and Finite-Lived Intangible Assets [Line Items] |  |  |
Finite-lived intangible assets, gross | 113 | 113 |
Accumulated amortization of intangible assets | (59) | (56) |
Finite-Lived Intangible Assets, Net | $ 54 | $ 57 |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 55 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482640/350-30-55-40 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482665/350-30-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482686/350-30-45-2 + Details
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