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v3.25.2

Goodwill, Customer Relationships and Other Intangible Assets - Rollforward Goodwill (Details) - USD ($) |  |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
May 21, 2025 | Apr. 30, 2025 | Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Dec. 31, 2024
Goodwill [Line Items] |  |  |  |  |  |  |
Accumulated impairment losses |  |  | $ 22,300,000,000 |  | $ 22,300,000,000 |  | $ 21,700,000,000
Goodwill [Roll Forward] |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 1,964,000,000 |  |
Impairment | $ 0 | $ 0 | (628,000,000) | $ 0 | (628,000,000) | $ 0 |
Reclassified as held for sale |  |  |  |  | (1,336,000,000) |  |
Ending balance |  |  | 0 |  | 0 |  |
Held for sale | Mass Markets Fiber-to-the Home Business |  |  |  |  |  |  |
Goodwill [Line Items] |  |  |  |  |  |  |
Goodwill |  |  | 1,336,000,000 |  | 1,336,000,000 |  |
Business |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 0 |  |
Impairment |  |  |  |  | 0 |  |
Reclassified as held for sale |  |  |  |  | 0 |  |
Ending balance |  |  | 0 |  | 0 |  |
Mass Markets |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 1,964,000,000 |  |
Impairment |  |  |  |  | (628,000,000) |  |
Reclassified as held for sale |  |  |  |  | (1,336,000,000) |  |
Ending balance |  |  | $ 0 |  | $ 0 |  |

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