Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets - Indefinite Life Intangible Assets (Details)

v3.19.1
Intangible Assets - Indefinite Life Intangible Assets (Details) - USD ($)
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Acquired Indefinite-lived Intangible Assets [Line Items]      
Impairment of intangible assets, indefinite-lived (excluding goodwill) $ 0 $ 0  
Trademarks      
Acquired Indefinite-lived Intangible Assets [Line Items]      
Indefinite-lived intangible asset, trademark 251,000,000   $ 251,000,000
Trademarks | Pandora      
Acquired Indefinite-lived Intangible Assets [Line Items]      
Indefinite-lived intangible asset, trademark $ 331,000,000