Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Common Share - Narrative (Details)

v3.21.2
Earnings Per Common Share - Narrative (Details) - shares
shares in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Series L Preferred Stock | Convertible Preferred Stock Subject to Mandatory Redemption        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Securities excluded from computation of earnings per share (in shares) 62 62 62 62