Consolidated Statement of Changes in Stockholders' Equity and Noncontrolling Interests (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2018
Common stock dividends declared (per share)	$ 4.24	$ 4.00
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 13,432,436	$ 10,154,178	$ 19,023,638	$ 7,883,928
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(13,432,436)	(10,154,178)	(19,023,638)	(7,883,928)
Retained Earnings
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	0	0	0	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 0	$ 0	$ 0	$ 0
Series D Convertible Preferred Stock
Preferred stock dividends declared (per share)		$ 1.3125