SHAREHOLDERS' EQUITY - Reclassifications Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net investment gains (losses)		$ 951	$ 123
Acquisition and operating expenses		(1,256)	(1,308)
Income tax (expense) or benefit		(291)	(154)
Net of tax		$ 1,879	$ 1,188
U.S. federal statutory income tax rate		21.00%	21.00%
Reclassification Out Of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net of tax		$ 132	$ 44
Reclassification Out Of Accumulated Other Comprehensive Income | Unrealized gains (losses) on available-for-sale securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net investment gains (losses)		168	57
Income tax (expense) or benefit	[1]	(35)	(12)
Net of tax		133	45
Reclassification Out Of Accumulated Other Comprehensive Income | Unrealized Gains (Losses) on Derivatives
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net investment gains (losses)		(1)	(1)
Income tax (expense) or benefit	[1]	0	0
Net of tax		$ (1)	$ (1)

[1] Based on 21% tax rate