EARNINGS PER COMMON SHARE - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Weighted average number of shares outstanding - basic (in shares)	461.0	518.0
Effect of dilutive securities common shares, employee stock awards (in shares)	2.5	0.0
Weighted average common shares outstanding - diluted (in shares)	463.5	518.0
Net income (loss)	$ 5,447,000	$ (709,000)
Less: Net income (loss) attributable to the noncontrolling interest	37,000	66,000
Net income (loss) attributable to Holdings	5,410,000	(775,000)
Less: Preferred stock dividends	13,000	0
Net income (loss) available to Holdings’ common shareholders	$ 5,397,000	$ (775,000)
Net income (loss) attributable to Holdings per common share:
Basic (in usd per share)	$ 11.71	$ (1.50)
Diluted (in usd per share)	$ 11.65	$ (1.50)
Effect of dilutive securities (in shares)		1.0