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Note 13 - Goodwill and Intangible Assets - Changes in Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Goodwill | $ 1,446 | $ 612 |
Goodwill, Net additions | 14 | 834 |
Goodwill | 1,460 | 1,446 | $ 612
Broadcast licenses | 3,573 |  |
Broadcast licenses | 3,579 | 3,573 |
Finite-lived intangible assets | 460 | 53 |
Finite-lived Intangible Assets Acquired | 40 | 522 |
Amortization of Intangible Assets | (105) | (115) | (21)
Finite-lived intangible assets | 395 | 460 | 53
Total intangible assets net of accumulated amortization | 5,479 | 2,195 |
Total intangible assets net of accumulated amortization, Net additions | 60 | 3,399 |
Total intangible assets net of accumulated amortization | 5,434 | 5,479 | 2,195
Broadcast Licenses [Member] |  |  |
Broadcast licenses | 3,573 | 1,530 |
Indefinite-lived Intangible Assets Acquired | 6 | 2,043 |
Broadcast licenses | $ 3,579 | $ 3,573 | $ 1,530

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the capitalized costs to acquire rights under a license arrangement (for example, to sell specified products in a specified territory) having an indefinite period of benefit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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