Segment Information (Intersegment Assets, Equity Affiliates Investments and Capital Expenditures Details) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Segment Reporting Information [Line Items] | |||
| Assets | $ 420,198 | $ 394,795 | |
| Investments in Equity Method Investees | 1,106 | 295 | $ 1,251 |
| Capital Expenditures | 20,842 | 20,263 | $ 17,853 |
| Corporate and eliminations | |||
| Segment Reporting Information [Line Items] | |||
| Assets | (89,506) | (94,770) | |
| Investments in Equity Method Investees | 1,106 | 295 | |
| Capital Expenditures | 978 | 659 | |
| Communications | Operating Segments | |||
| Segment Reporting Information [Line Items] | |||
| Assets | 500,244 | 481,757 | |
| Investments in Equity Method Investees | 0 | 0 | |
| Capital Expenditures | 19,588 | 19,335 | |
| Latin America Business Segment | Operating Segments | |||
| Segment Reporting Information [Line Items] | |||
| Assets | 9,460 | 7,808 | |
| Investments in Equity Method Investees | 0 | 0 | |
| Capital Expenditures | $ 276 | $ 269 | |
| X | ||||||||||
- Definition Amount of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|