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Equity - Changes in Number of Shares Outstanding (Details) - shares
shares in Thousands
6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Class A Common Stock    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning balance (in shares) 909,142 723,999
Issue of shares upon vesting of restricted stock units (in shares) 6,057 4,881
Issue of shares on exercises of stock options (in shares) 1,427 261
Issue of shares for employee stock purchase plan (in shares) 986 1,315
Exchange of Class B common stock for Class A common stock (in shares) 109,548 97,406
Repurchase and cancellation of Class A common stock (in shares) (14,825) 0
Ending balance (in shares) 1,012,335 827,863
Class B Common Stock    
Increase (Decrease) in Stockholders' Equity [Roll Forward]    
Beginning balance (in shares) 116,548 311,433
Issue of shares upon vesting of restricted stock units (in shares) 0 0
Issue of shares on exercises of stock options (in shares) 0 0
Issue of shares for employee stock purchase plan (in shares) 0 0
Exchange of Class B common stock for Class A common stock (in shares) (109,548) (97,406)
Repurchase and cancellation of Class A common stock (in shares) 0 0
Ending balance (in shares) 7,000 214,027