Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Stock Repurchases (Details)

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Stockholders' Equity - Stock Repurchases (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended 8 Months Ended 44 Months Ended
Oct. 06, 2021
Aug. 31, 2021
May 31, 2021
Aug. 31, 2021
Oct. 06, 2021
Oct. 06, 2021
Jan. 31, 2021
Jan. 31, 2018
Equity, Class of Treasury Stock [Line Items]                
Dollar Value of Shares Repurchased   $ 904,200,000 $ 400,800,000          
Class A and Class B | 2018 Authorization                
Equity, Class of Treasury Stock [Line Items]                
Repurchase Authorization               $ 3,000,000,000
Class A and Class B | 2021 Authorization                
Equity, Class of Treasury Stock [Line Items]                
Repurchase Authorization             $ 2,000,000,000  
Class A Common Stock | 2018 Authorization                
Equity, Class of Treasury Stock [Line Items]                
Dollar Value of Shares Repurchased       $ 1,305,000,000        
Number of shares repurchased (in shares)       5,776,373        
Class A Common Stock | 2018 Authorization | Subsequent event                
Equity, Class of Treasury Stock [Line Items]                
Dollar Value of Shares Repurchased $ 85,500,000         $ 2,436,400,000    
Number of shares repurchased (in shares) 402,642         11,076,620    
Class A Common Stock | 2021 Authorization | Subsequent event                
Equity, Class of Treasury Stock [Line Items]                
Dollar Value of Shares Repurchased         $ 0      
Number of shares repurchased (in shares)         0