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The Company and Summary of Significant Accounting Policies - Advertising Expense (Details) - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Advertising expense $ 1.1 $ 1.1 $ 0.8