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Debt - Schedule of Warrants (Details) - 2022 Warrants
$ / shares in Units, shares in Millions, $ in Millions
6 Months Ended
Jun. 30, 2021
USD ($)
$ / shares
shares
Class of Warrant or Right [Line Items]  
Proceeds | $ $ 54
Initial Shares (in shares) 6
Strike Price (in dollars per share) | $ / shares $ 203.40
Shares as of June 30, 2021 (in shares) 1