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Related-Party Transactions (Details)
shares in Millions, $ in Millions
Oct. 31, 2021
board_seat
shares
Jul. 21, 2021
USD ($)
Slack    
Related Party Transaction [Line Items]    
Reserved shares of common stock for future sale (in share) | shares 1.2  
Slack | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement    
Related Party Transaction [Line Items]    
Collaborative arrangement, cash value of shares agreed to be donated | $   $ 54
Foundation    
Related Party Transaction [Line Items]    
Number of Company's board members that hold board seats in Foundation 1  
Number of board seats in Foundation 3