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Divestitures (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($) asset_group | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Acquisitions, divestitures and exchanges |  |  |
Licenses | $ 4,588 | $ 4,702 |
Expenses related to strategic alternatives review | 56 | 13 |
Cash received from divestitures | 147 | 1 | $ 8
(Gain) loss on sale of business and other exit costs, net | (68) | $ 0 | $ (1)
OneNeck |  |  |
Acquisitions, divestitures and exchanges |  |  |
Business divestiture agreement amount | 101 |  |
Cash received from divestitures | 91 |  |
(Gain) loss on sale of business and other exit costs, net | (19) |  |
Contingent proceeds | 9 |  |
UScellular Total |  |  |
Acquisitions, divestitures and exchanges |  |  |
Business divestiture agreement amount | 4,400 |  |
UScellular Total | Noncontrolling interests |  |  |
Acquisitions, divestitures and exchanges |  |  |
Business divestiture agreement amount | 400 |  |
UScellular Total | Contingent consideration |  |  |
Acquisitions, divestitures and exchanges |  |  |
Business divestiture agreement amount | 100 |  |
UScellular Total | Verizon Purchase Agreement |  |  |
Acquisitions, divestitures and exchanges |  |  |
License sale agreement amount | 1,000 |  |
Licenses | 586 |  |
UScellular Total | AT&T Purchase Agreement |  |  |
Acquisitions, divestitures and exchanges |  |  |
License sale agreement amount | 1,018 |  |
Licenses | 859 |  |
UScellular Total | AT&T Purchase Agreement | Noncontrolling interests |  |  |
Acquisitions, divestitures and exchanges |  |  |
License sale agreement amount | 232 |  |
UScellular Total | Maximum |  |  |
Acquisitions, divestitures and exchanges |  |  |
Amount of debt assumed under a business divestiture agreement | 2,000 |  |
UScellular Total | Put/Call Agreement |  |  |
Acquisitions, divestitures and exchanges |  |  |
Business divestiture agreement amount | 106 |  |
Put/call amount/ fair value | $ 5 |  |
TDS Telecom |  |  |
Acquisitions, divestitures and exchanges |  |  |
Asset groups | asset_group | 1 |  |
TDS Telecom | Virginia incumbent markets |  |  |
Acquisitions, divestitures and exchanges |  |  |
Business divestiture agreement amount | $ 31 |  |
(Gain) loss on sale of business and other exit costs, net | (22) |  |
TDS Telecom | Texas cable operations |  |  |
Acquisitions, divestitures and exchanges |  |  |
Business divestiture agreement amount | 27 |  |
(Gain) loss on sale of business and other exit costs, net | $ (27) |  |
UScellular |  |  |
Acquisitions, divestitures and exchanges |  |  |
Asset groups | asset_group | 2 |  |

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