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 | ||