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Stock-Based Compensation and Stockholder's Equity - Stock Option Exercises (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Payment Arrangement, Noncash Expense [Abstract]      
Number of options exercised (in shares) 114,884 70,608 0
Cash received for options exercised $ 3 $ 1 $ 0
Aggregate intrinsic value of options exercised $ 9 $ 5 $ 0