DERIVATIVES - Financial Statement Impact of Derivatives By Category (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	$ 821	$ (2,546)
Interest credited to policyholders’ account balances	(315)	(291)
Amount Due from Reinsurers
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	(767)	0
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
GMIB Reinsurance Contracts
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	(260)	(578)
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
GMxB Derivative Features’ Liability
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	1,688	3,408
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Settlement fee		46
SCS, SIO, MSO and IUL Indexed Features
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	323	(1,145)
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Embedded derivatives
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	984	1,685
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Derivative instruments including embedded derivative
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	821	(2,592)
Interest credited to policyholders’ account balances	(18)	0
AOCI	(7)	(6)
Not designated for hedge accounting
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	(145)	(4,273)
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Not designated for hedge accounting | Currency Swaps
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	5	1
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Not designated for hedge accounting | Swaps
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	(149)	(2,911)
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Not designated for hedge accounting | Futures
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	58	(288)
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Not designated for hedge accounting | Swaps
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	734	(1,271)
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Not designated for hedge accounting | Options
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	(284)	1,145
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Not designated for hedge accounting | Futures
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	(512)	(949)
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Not designated for hedge accounting | Swaptions
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	0	0
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Not designated for hedge accounting | Credit default swaps
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	2	0
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Not designated for hedge accounting | Currency forwards
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	1	0
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Not designated for hedge accounting | Margin
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	0	0
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Not designated for hedge accounting | Collateral
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	0	0
Interest credited to policyholders’ account balances	0	0
AOCI	0	0
Cash flow hedge | Designated for hedge accounting
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	(18)	(4)
Interest credited to policyholders’ account balances	(18)	0
AOCI	(7)	(6)
Cash flow hedge | Designated for hedge accounting | Currency Swaps
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	(4)	0
Interest credited to policyholders’ account balances	(18)	0
AOCI	13	0
Cash flow hedge | Designated for hedge accounting | Swaps
Derivatives, Fair Value [Line Items]
Net derivative gains (losses)	(14)	(4)
Interest credited to policyholders’ account balances	0	0
AOCI	$ (20)	$ (6)