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Property and Equipment (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Property, Plant and Equipment [Line Items] |  |  |  |
Gross property and equipment |  | $ 29,945 | $ 28,478 |
Less: accumulated depreciation |  | (14,279) | (13,071) |
Total property and equipment, net |  | 15,666 | 15,407 |
Depreciation expense |  | $ 1,300 | 1,200 | $ 1,200
AT&T weighted-average initial term |  | 28 years |  |
at&T |  | 22.00% |  |
T-Mobile leased or subleased, or operated and managed towers |  | 31.00% |  |
T-Mobile weighted-average initial term |  | 28 years |  |
T-Mobile weighted-average initial term, option to purchase in 2037 |  | 32 years |  |
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 |  | 400 |  |
AT&T purchase option prior to 2029 |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Contractual Obligation |  | 15 |  |
Land owned in fee and perpetual easements [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Gross property and equipment | [1] | 2,442 | 2,339 |
Buildings [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Gross property and equipment |  | $ 209 | 221 |
Property, Plant and Equipment, Useful Life |  | 40 years |  |
Communication Infrastructure [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Gross property and equipment |  | $ 25,479 | 24,353 |
Information technology assets and other [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Gross property and equipment |  | 681 | 652 |
Construction in Process [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Gross property and equipment |  | $ 1,134 | $ 913 |
Minimum [Member] | Communication Infrastructure [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 1 year |  |
Minimum [Member] | Information technology assets and other [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 2 years |  |
Maximum [Member] | Communication Infrastructure [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 20 years |  |
Maximum [Member] | Information technology assets and other [Member] |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |
Property, Plant and Equipment, Useful Life |  | 7 years |  |
[1] | Includes land owned through fee interests and perpetual easements.

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