Description of the Business and Summary of Significant Accounting Policies - Minimum Guarantees (Details) - Payment guarantee - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Guarantor Obligations [Line Items]
Amortization related to licenses	$ 73	$ 81	$ 61
Accrued liabilities	45	39
Other long-term liabilities	133	172
Total minimum guarantee obligations	$ 178	$ 211
Weighted average remaining term (in years)	4 years 4 months 24 days	4 years 8 months 12 days
Expected future payments, 2021	$ 45	$ 39
Expected future payments, 2022	44
Expected future payments, 2023	30
Expected future payments, 2024	30
Expected future payments, 2025	29
Expected future payments, After 2025	$ 0

License Agreements, Guaranteed Obligations, Term

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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 (a)(2)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
-Paragraph 28
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