XML 83 R71.htm IDEA: XBRL DOCUMENT v3.21.2
Preferred Shares (Details Textuals) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Sep. 15, 2021
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Dec. 31, 2020
Preferred Shares [Line Items]            
Preferred shares, authorized (in shares)   20,000,000   20,000,000   20,000,000
Preferred shares, par value (in dollars per share)   $ 1.667   $ 1.667   $ 1.667
Liquidation price per share (in dollars per share)   1,000,000   1,000,000    
Depositary shares, redemption amount (in dollars per share)   $ 1,000   $ 1,000    
Equity adjustments in connection with redemption of Preferred Shares $ 9 $ 9 $ 0 $ 9 $ 0  
Series C Preferred Stock            
Preferred Shares [Line Items]            
Payments for redemption of preferred stock $ 850          
Fixed dividend rate per annum (as a percent) 4.90%          
Series B Preferred Stock            
Preferred Shares [Line Items]            
Preferred shares, par value (in dollars per share)   $ 1.667   $ 1.667    
Fixed dividend rate per annum (as a percent)       5.20%    
Series D Preferred Stock            
Preferred Shares [Line Items]            
Preferred shares, par value (in dollars per share)   $ 1.667   $ 1.667    
Fixed dividend rate per annum (as a percent)       3.55%