Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity - Preferred Stock Narrative (Details)

v3.19.2
Shareholders' Equity - Preferred Stock Narrative (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 25, 2019
Jun. 20, 2019
Jun. 30, 2019
Mar. 31, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Class of Stock [Line Items]                
Preferred stock dividends     $ 239,000,000 $ 442,000,000 $ 318,000,000 $ 681,000,000 $ 746,000,000  
Preferred stock issued (in shares)     3,939,040     3,939,040   3,843,140
Issuance of preferred stock     $ 2,363,000,000   $ 1,322,000,000 $ 2,363,000,000 $ 3,671,000,000  
Series JJ Preferred Stock                
Class of Stock [Line Items]                
Per annum dividend rate   5.125%            
Preferred stock issued (in shares)   40,000            
Issuance of preferred stock   $ 1,000,000,000.0            
Liquidation preference   $ 25,000            
Series KK Preferred Stock                
Class of Stock [Line Items]                
Per annum dividend rate 5.375%              
Preferred stock issued (in shares) 55,900              
Issuance of preferred stock $ 1,400,000,000              
Liquidation preference $ 25,000