XML 149 R138.htm IDEA: XBRL DOCUMENT v3.20.4
Preferred Stock (Details) - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Class of Stock [Line Items]    
Preferred stock outstanding $ 1,265 $ 1,265
Preferred stock, shares outstanding (shares) 1,265 1,265
6.0% Non-Cumulative Preferred Stock, Series I [Member]    
Class of Stock [Line Items]    
Preferred stock, shares outstanding (shares) 1,265 1,265
Dividend rate 6.00% 6.00%
Preferred stock, redemption price per share (usd per share) $ 1,000,000