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Divestitures - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Licenses | $ 4,590 |  | $ 4,588
Expenses related to strategic alternatives review | 16 | $ 11 |
Verizon purchase agreement |  |  |
License sale agreement amount |  |  | 1,000
Licenses | 586 |  |
UScellular Total |  |  |
Business divestiture agreement amount |  |  | 4,400
UScellular Total | Noncontrolling interests |  |  |
Business divestiture agreement amount |  |  | 400
UScellular Total | Contingent consideration |  |  |
Business divestiture agreement amount |  |  | 100
UScellular Total | AT&T purchase agreement |  |  |
License sale agreement amount |  |  | 1,018
Licenses | 859 |  |
UScellular Total | AT&T purchase agreement | Noncontrolling interests |  |  |
License sale agreement amount |  |  | 232
UScellular Total | Maximum |  |  |
Amount of debt assumed under a business divestiture agreement |  |  | 2,000
UScellular Total | Put/Call Agreement |  |  |
Business divestiture agreement amount |  |  | $ 106
Put/call amount, fair value | 4 |  |
TDS Telecom | Colorado incumbent markets |  |  |
Business divestiture agreement amount | $ 18 |  |

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