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Acquisitions - Pro Forma Information (Details) - Pandora - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Business Acquisition [Line Items] |  |  |  |
Total revenue | $ 2,027 | $ 2,013 | $ 5,857 | $ 5,852
Net income | $ 272 | $ 245 | $ 808 | $ 690

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