Consolidated Balance Sheets (Parenthetical) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Assets
Held to maturity - fair value	$ 125,000	$ 125,000
Stockholders' Equity
Common stock, shares par value	$ 5	$ 5
Common stock, shares designated	200,000,000	200,000,000
Common stock, shares authorized	6,000,000,000	6,000,000,000
Common stock, shares issued	3,209,339,000	3,203,372,000
Common stock, shares outstanding	3,209,339,000	3,203,372,000
Preferred stock, shares par value	$ 25	$ 25
Preferred stock, shares authorized	400,000,000	400,000,000
Preferred stock, shares issued	205,327,000	205,327,000
Preferred stock, shares outstanding	205,327,000	205,327,000