Segment Information (Intersegment Capital Expenditures) (Details) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Segment Reporting Information [Line Items] | ||
| Payments to Acquire Property, Plant and Equipment | $ 9,174 | $ 8,118 |
| Operating Segments | Communications | ||
| Segment Reporting Information [Line Items] | ||
| Payments to Acquire Property, Plant and Equipment | 8,674 | 7,741 |
| Operating Segments | Latin America | ||
| Segment Reporting Information [Line Items] | ||
| Payments to Acquire Property, Plant and Equipment | 125 | 101 |
| Corporate and eliminations | ||
| Segment Reporting Information [Line Items] | ||
| Payments to Acquire Property, Plant and Equipment | $ 375 | $ 276 |