Equity Award Activity and Stock-Based Compensation - Summary of Activity Under Equity Plans and Related Information (Parenthetical) (Details) shares in Millions |
12 Months Ended |
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Dec. 31, 2021
shares
| |
Performance Stock Units ("PSUs") | |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] | |
Number of Restricted Stock Units, Granted | 11 |