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Note 3 - Acquisitions and Divestitures - Unaudited Pro Forma Results (Details) - Raycom [Member] - USD ($) $ / shares in Units, $ in Millions | 9 Months Ended
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Sep. 30, 2019 | Sep. 30, 2018
Revenue (less agency commissions) | $ 1,546 | $ 1,547
Net income | 142 | 110
Net income attributable to common stockholders | $ 103 | $ 71
Basic net income per share (in dollars per share) | $ 1.42 | $ 1.25
Diluted net income per share (in dollars per share) | $ 1.42 | $ 1.24

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