Quarterly report pursuant to Section 13 or 15(d)

Changes in Equity - Additional Information (Details)

v3.21.2
Changes in Equity - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2021
May 03, 2021
Jan. 11, 2021
Class of Stock [Line Items]        
Common stock and sub-share certificates of proprietary interest, par value (in dollars per share) $ 0.01 $ 0.01   $ 0.01
Value of shares authorized to be repurchased     $ 20.0  
Average per share paid amount (in USD per share)   $ 1,533    
Treasury Stock        
Class of Stock [Line Items]        
Repurchases of common stock (in shares) 1,633 1,633    
Sub shares        
Class of Stock [Line Items]        
Common stock and sub-share certificates of proprietary interest, par value (in dollars per share)       $ 0.0333