Description of Business, Basis of Presentation, and Summary of Significant Accounting Policies - Schedule of Information Relating to Operating Leases (Details) $ in Millions	Dec. 31, 2019 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Weighted-average remaining lease term (years)	3 years 8 months 12 days
Weighted-average discount rate	2.82%
Right-of-use asset	$ 22
Lease liability	$ 23