INCOME AND EXCISE TAXES - Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Net increase in stockholders’ equity resulting from operations	$ 600	$ 1,567	$ 484
Net unrealized losses (gains) on investments, foreign currency and other transactions	525	(586)	144
Income not currently taxable	(232)	(223)	(147)
Income for tax but not book	90	162	133
Expenses not currently deductible	56	165	19
Expenses for tax but not book	0	0	(59)
Realized gain/loss difference	(101)	(199)	149
Taxable income	938	886	723
Dividend income not taxable until collected	175	91	67
Dividend income collected	$ 71	$ 122	$ 1