EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Numerator (basic and diluted):
Net income	$ 364	$ 648	$ 784	$ 1,259
Less: Preferred stock dividends	32	32	56	55
Net income available to common stockholders	$ 332	$ 616	$ 728	$ 1,204
Denominator:
Weighted-average common shares outstanding - basic (in shares)	491,497,026	425,948,706	457,140,258	425,951,197
Dilutive common shares: share-based awards (in shares)	1,799,088	1,612,866	2,027,489	1,717,045
Weighted-average common shares outstanding - diluted (in shares)	493,296,114	427,561,572	459,167,747	427,668,242
Earnings per common share:
Basic (in dollars per share)	$ 0.68	$ 1.45	$ 1.59	$ 2.83
Diluted (in dollars per share)	$ 0.67	$ 1.44	$ 1.58	$ 2.81
Share-based awards excluded from diluted earnings per share computation (in shares)	1,647,051	76,984	784,372	43,877