Goodwill and Intangible Assets - Rollforward (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
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| Goodwill [Roll Forward] | ||
| Balance at the beginning of the period | $ 762 | $ 746 |
| Acquisition adjustments during measurement period | 16 | |
| Dispositions | (7) | |
| Balance at the end of the period | 755 | 762 |
| GCI Holdings | ||
| Goodwill [Roll Forward] | ||
| Balance at the beginning of the period | 755 | 739 |
| Acquisition adjustments during measurement period | 16 | |
| Balance at the end of the period | 755 | 755 |
| Corporate and other. | ||
| Goodwill [Roll Forward] | ||
| Balance at the beginning of the period | 7 | 7 |
| Dispositions | $ (7) | |
| Balance at the end of the period | $ 7 | |
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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