FAIR VALUE OF ASSETS AND LIABILITIES - Quantitative Information Regarding Internally-Prices Level 3 Assets and Liabilities (Details) $ in Millions		6 Months Ended	12 Months Ended
		Jun. 30, 2022 USD ($) multiplier	Dec. 31, 2021 USD ($)
Assets
Asset-backed securities		$ 7,665	$ 8,771
Secured receivable	[1]	1,555	0
Liabilities:
Policyholders' account balances		0	11,750
Asset-backed securities
Assets
Asset-backed securities			$ 1,062
Secured receivable
Assets
Secured receivable		$ 1,555
Level 3 | Minimum
Liabilities:
Policyholder age		45 years
Level 3 | Minimum     | Future policy benefits
Liabilities:
Mortality rate		0
Level 3 | Maximum
Liabilities:
Policyholder age		90 years
Level 3 | Valuation, income approach | Minimum     | Internal pricing | Retained business
Liabilities:
Lapse rate		0.01
Spread over SOFR		0.0055
Utilization rate		0.77
Mortality rate		0
Equity volatility curve		0.16
Level 3 | Valuation, income approach | Minimum     | Internal pricing | Ceded business
Liabilities:
Lapse rate		0.01
Spread over SOFR		0.0027
Utilization rate		0.77
Mortality rate		0
Equity volatility curve		0.16
Level 3 | Valuation, income approach | Minimum     | Internal pricing | Future policy benefits
Liabilities:
Lapse rate			0.01
Spread over Libor			0.0003
Utilization rate			0.39
Mortality rate			0
Equity volatility curve			0.16
Level 3 | Valuation, income approach | Minimum     | Internal pricing | Policyholders' account balances
Liabilities:
Lapse rate			0.01
Spread over Libor			0.0003
Equity volatility curve			0.06
Level 3 | Valuation, income approach | Minimum     | Corporate securities | Internal pricing
Assets
Discount rate			0.0234
Level 3 | Valuation, income approach | Minimum     | Corporate securities | Internal pricing | Corporate Debt Securities, One
Assets
Discount rate		0.0656
Origination yield		0.0500
Level 3 | Valuation, income approach | Minimum     | Corporate securities | Internal pricing | Corporate Debt Securities, Two
Assets
Discount rate		0.0440
Level 3 | Valuation, income approach | Minimum     | Corporate securities | Internal pricing | Corporate Debt Securities, Three
Assets
Discount rate		0.2000
Level 3 | Valuation, income approach | Minimum     | Asset-backed securities | Internal pricing
Assets
Origination yield		0.0697
Level 3 | Valuation, income approach | Minimum     | Secured receivable | Internal pricing
Assets
Discount rate		0.0000
Level 3 | Valuation, income approach | Maximum     | Internal pricing | Retained business
Liabilities:
Lapse rate		0.20
Spread over SOFR		0.0252
Utilization rate		1
Mortality rate		0.16
Equity volatility curve		0.28
Level 3 | Valuation, income approach | Maximum     | Internal pricing | Ceded business
Liabilities:
Lapse rate		0.20
Spread over SOFR		0.0207
Utilization rate		1
Mortality rate		0.16
Equity volatility curve		0.28
Level 3 | Valuation, income approach | Maximum     | Internal pricing | Future policy benefits
Liabilities:
Lapse rate			0.20
Spread over Libor			0.0113
Utilization rate			0.96
Mortality rate			0.15
Equity volatility curve			0.25
Level 3 | Valuation, income approach | Maximum     | Internal pricing | Policyholders' account balances
Liabilities:
Lapse rate			0.42
Spread over Libor			0.0117
Equity volatility curve			0.31
Level 3 | Valuation, income approach | Maximum     | Corporate securities | Internal pricing
Assets
Discount rate			0.1017
Level 3 | Valuation, income approach | Maximum     | Corporate securities | Internal pricing | Corporate Debt Securities, One
Assets
Discount rate		0.0809
Origination yield		0.0510
Level 3 | Valuation, income approach | Maximum     | Corporate securities | Internal pricing | Corporate Debt Securities, Two
Assets
Discount rate		0.0440
Level 3 | Valuation, income approach | Maximum     | Corporate securities | Internal pricing | Corporate Debt Securities, Three
Assets
Discount rate		0.2000
Level 3 | Valuation, income approach | Maximum     | Asset-backed securities | Internal pricing
Assets
Origination yield		0.0797
Level 3 | Valuation, income approach | Maximum     | Secured receivable | Internal pricing
Assets
Discount rate		0.0552
Level 3 | Valuation, income approach | Weighted Average | Corporate securities | Internal pricing
Assets
Discount rate			0.0282
Level 3 | Valuation, income approach | Weighted Average | Corporate securities | Internal pricing | Corporate Debt Securities, One
Assets
Discount rate		0.0738
Origination yield		0.0505
Level 3 | Valuation, income approach | Weighted Average | Corporate securities | Internal pricing | Corporate Debt Securities, Two
Assets
Discount rate		0.0440
Level 3 | Valuation, income approach | Weighted Average | Corporate securities | Internal pricing | Corporate Debt Securities, Three
Assets
Discount rate		0.2000
Level 3 | Valuation, income approach | Weighted Average | Asset-backed securities | Internal pricing
Assets
Origination yield		0.0747
Level 3 | Valuation, income approach | Weighted Average | Secured receivable | Internal pricing
Assets
Discount rate		0.0293
Level 3 | Valuation, market approach | Minimum     | Corporate securities | Internal pricing
Assets
EBITDA multiplier			6.5
Level 3 | Valuation, market approach | Minimum     | Corporate securities | Internal pricing | Corporate Debt Securities, Three
Assets
EBITDA multiplier | multiplier		6.36
Level 3 | Valuation, market approach | Maximum     | Corporate securities | Internal pricing
Assets
EBITDA multiplier			12.4
Level 3 | Valuation, market approach | Maximum     | Corporate securities | Internal pricing | Corporate Debt Securities, Three
Assets
EBITDA multiplier | multiplier		9.97
Level 3 | Valuation, market approach | Weighted Average | Corporate securities | Internal pricing
Assets
EBITDA multiplier			8.8
Level 3 | Valuation, market approach | Weighted Average | Corporate securities | Internal pricing | Corporate Debt Securities, Three
Assets
EBITDA multiplier | multiplier		0.08
Level 3 | Valuation, cost approach | Minimum     | Corporate securities | Internal pricing
Liabilities:
Discount rate			0.6258
Level 3 | Valuation, cost approach | Maximum     | Corporate securities | Internal pricing
Liabilities:
Discount rate			0.6258
Level 3 | Valuation, cost approach | Weighted Average | Corporate securities | Internal pricing
Liabilities:
Discount rate			0.6258
Recurring
Assets
Asset-backed securities		$ 7,665	$ 8,771
Secured receivable		1,555
Deposit asset		2,158
Net modified coinsurance receivable		215
Liabilities:
Retained business		11,257
Future policy benefits			4,060
Policyholders' account balances			2,041
Recurring | Asset-backed securities
Assets
Asset-backed securities		760	1,062
Recurring | Level 3
Assets
Asset-backed securities		339	265
Secured receivable		1,555
Deposit asset		2,158
Net modified coinsurance receivable		215
Liabilities:
Retained business		11,257
Future policy benefits			4,060
Policyholders' account balances			2,041
Recurring | Level 3 | Asset-backed securities
Assets
Asset-backed securities		25	23
Recurring | Level 3 | Internal pricing
Assets
Secured receivable		1,555
Deposit asset		2,158
Net modified coinsurance receivable		215
Recurring | Level 3 | Internal pricing | Asset-backed securities
Assets
Asset-backed securities		25
Recurring | Level 3 | Internal pricing | Retained business
Liabilities:
Retained business		3,347
Recurring | Level 3 | Internal pricing | Ceded business
Liabilities:
Ceded business		7,910
Recurring | Level 3 | Internal pricing | Future policy benefits
Liabilities:
Future policy benefits			4,060
Recurring | Level 3 | Internal pricing | Policyholders' account balances
Liabilities:
Policyholders' account balances			2,041
Recurring | Level 3 | Corporate securities | Internal pricing
Assets
Marketable securities			163
Recurring | Level 3 | Corporate securities | Internal pricing | Corporate Debt Securities, One
Assets
Marketable securities		153
Recurring | Level 3 | Corporate securities | Internal pricing | Corporate Debt Securities, Two
Assets
Marketable securities		45
Recurring | Level 3 | Corporate securities | Internal pricing | Corporate Debt Securities, Three
Assets
Marketable securities		93
Recurring | Level 3 | Other assets | Internal pricing
Assets
Other assets			400
Recurring | Level 3 | Reinsurance recoverables | Internal pricing
Assets
Reinsurance recoverables		$ 378	$ 1,881
Recurring | Level 3 | Minimum     | Internal pricing | Future policy benefits
Liabilities:
Withdrawal rate assumption		0.76	0.76
Recurring | Level 3 | Maximum     | Internal pricing | Future policy benefits
Liabilities:
Withdrawal rate assumption		1	1

[1] As of April 1, 2022 we have elected the fair value option for these financial statement line items. See Note 2 for further discussion.