FAIR VALUE MEASUREMENTS (Details - Gains or losses recorded related to the eligible instruments for which we elected the fair value option) - Fair Value Option - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value option gain (loss)	$ 300	$ 389
Other bond securities
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value option gain (loss)	(201)	(99)
Alternative investments
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value option gain (loss)	398	417
Long-term debt
Fair Value, Option, Quantitative Disclosures [Line Items]
Fair value option gain (loss)	$ 103	$ 71