Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Common stock dividends declared, per common share (in dollars per share)	$ 0.01125	$ 0.0025	$ 0.03125	$ 0.0075
Preferred stock dividends declared, per share (in dollars per share)	$ 0.875	$ 0.875	$ 2.625	$ 2.625
Common stock issued for 401(k) match, shares (in shares)	141,000	439,000	524,000	1,396,000
Common stock issued to pension plans, shares (in shares)	1,000,000	2,058,000	4,500,000	2,225,000
Stock issued to directors, shares (in shares)		391,000	207,000	391,000
Restricted stock unit distributions, shares (in shares)			1,653,000	1,702,000
Common stock issued for employee incentive compensation, shares (in shares)				2,800,000
Treasury shares issued to charitable foundation, share (in shares)				650,000