INVESTMENTS - Other Investments (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Investment [Line Items]
Other investments		$ 3,842	$ 2,429
Policy loans
Investment [Line Items]
Other investments		236	260
Short-term investments
Investment [Line Items]
Other investments	[1]	1,726	1,139
Limited partnerships
Investment [Line Items]
Other investments		1,858	1,004
Other Investments
Investment [Line Items]
Other investments		$ 22	$ 26

[1] Includes securities lending collateral