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Property and Equipment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Property, Plant and Equipment [Line Items] |  |  |  |
Total gross property and equipment |  | $ 31,039 | $ 29,945 |
Less: accumulated depreciation |  | (15,544) | (14,279) |
Property and equipment, net |  | 15,495 | 15,666 |
Depreciation expense |  | $ 1,300 | 1,300 | $ 1,200
AT&T leased or subleased, or operated and managed towers |  | 22.00% |  |
AT&T weighted-average initial term |  | 28 years |  |
T-Mobile leased or subleased, or operated and managed towers |  | 32.00% |  |
T-Mobile weighted-average initial term, option to purchase in 2037 |  | 32 years |  |
T-Mobile weighted-average initial term |  | 28 years |  |
T-Mobile leased or subleased, or operated and managed towers, also subject to arrangements with AT&T |  | 1.00% |  |
AT&T purchase option 2032 through 2048 |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Contractual Obligation |  | $ 4,200 |  |
T-Mobile Purchase obligation 2037 |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Contractual Obligation |  | 2,300 |  |
T-Mobile purchase option 2035 through 2049 |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Contractual Obligation |  | 2,000 |  |
AT&T purchase option prior to 2032 |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Contractual Obligation |  | 385 |  |
AT&T purchase option prior to 2029 |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Contractual Obligation |  | 12 |  |
Land owned in fee and perpetual easements [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Total gross property and equipment | [1] | $ 2,537 | 2,442 |
Buildings [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 40 years |  |
Total gross property and equipment |  | $ 213 | 209 |
Communication Infrastructure [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Total gross property and equipment |  | $ 26,519 | 25,479 |
Communication Infrastructure [Member] | Minimum [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 1 year |  |
Communication Infrastructure [Member] | Maximum [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 20 years |  |
Information technology assets and other [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Total gross property and equipment |  | $ 725 | 681 |
Information technology assets and other [Member] | Minimum [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 2 years |  |
Information technology assets and other [Member] | Maximum [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 7 years |  |
Construction in Process [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Total gross property and equipment |  | $ 1,045 | $ 1,134 |
[1] | Includes land owned through fee interests and perpetual easements.

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