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Note 11 - Goodwill and Intangible Assets - Changes in Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Goodwill | $ 1,460 |
Goodwill, Net additions | 6 |
Goodwill | 1,466 |
Broadcast licenses | 3,579 |
Broadcast licenses | 3,584 |
Finite-lived intangible assets | 395 |
Finite-lived intangible assets, Net additions | 7 |
Amortization of Intangible Assets | (26) | $ (26)
Finite-lived intangible assets | 376 |
Total intangible assets net of accumulated amortization | 5,434 |
Total intangible assets net of accumulated amortization, Net additions | 18 |
Total intangible assets net of accumulated amortization | 5,426 |
Goodwill, gross | 1,559 |
Goodwill, impairments | 0 |
Goodwill, gross | 1,565 |
Accumulated goodwill impairment | (99) |
Accumulated goodwill impairment | (99) |
Broadcast Licenses [Member] |  |
Broadcast licenses | 3,579 |
Broadcast licenses, Net additions | 5 |
Broadcast licenses | $ 3,584 |

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