INVESTMENTS - Investments in Variable Interest Entities Not Consolidated (Details) - USD ($) $ in Millions		Sep. 30, 2025	Dec. 31, 2024
Variable Interest Entity [Line Items]
Fixed maturity securities, available-for-sale		$ 67,276	$ 65,269
Other investments		7,495	5,958
Assets		122,306	117,566
Variable Interest Entity, Not Consolidated
Variable Interest Entity [Line Items]
Fixed maturity securities, available-for-sale		6,891	6,243
Other investments	[1]	1,473	1,124
Assets		$ 8,364	$ 7,367

[1] Consists entirely of alternative investments in limited partnerships