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Investments (Narrative) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Schedule of Investments [Line Items]
Master funds gross assets		$ 37,046	$ 58,087
Master funds gross liabilities		35,344	56,225
Unaffiliated interest		404	371
Consolidated feeder funds’ investments		712	639
Total Unrealized Losses		27,870	35,944
Twelve Months or More, Unrealized Losses		26,855	15,668
Fixed Maturities, available-for-sale, at fair value	[1]	316,321	307,719
Fixed maturities, trading	[1]	9,790	5,951
Total commercial mortgage and other loans		59,305	56,745
Other invested assets	[1]	22,855	21,099
Write-down on accrued investment income receivable		1	1
Fixed maturity securities purchased with credit deterioration		0	0
Loans on non-accrual status recognized in interest income		3	1
Loans on non-accrual status do not have allowance for credit losses		126	27
Commercial mortgage and other loans purchased with credit deterioration		0	0
Fair value of collateral		717	1,295
Fixed Maturities, HTM, allowance for credit losses		0	2
Debt Securities, Held-to-Maturity, Accumulated Unrecognized Gain, Net		126
Fixed maturities | Fixed maturities, Trading
Schedule of Investments [Line Items]
Fixed maturities, trading		9,790
Corporate securities
Schedule of Investments [Line Items]
Twelve Months or More, Unrealized Losses		26,855	15,668
Held-to-maturity
Schedule of Investments [Line Items]
Fixed Maturities, HTM, allowance for credit losses		1,125
Other Income | Fixed maturities | Fixed maturities, Trading
Schedule of Investments [Line Items]
Unrealized Gain (Loss) on Investments		(518)	1,427	$ 169
Other Income | Equity securities
Schedule of Investments [Line Items]
Unrealized Gain (Loss) on Investments		(612)	914	(591)
Other Income | Assets supporting experience-rated contractholder liabilities | Held-for-sale
Schedule of Investments [Line Items]
Unrealized Gain (Loss) on Investments		(440)	737	$ 708
Investments
Schedule of Investments [Line Items]
Fair value of collateral		388	385
Cash
Schedule of Investments [Line Items]
Fair value of collateral		329	910
Carrying value of non-income producing assets
Schedule of Investments [Line Items]
Fixed Maturities, available-for-sale, at fair value		114
Fixed maturities, trading		25
Total commercial mortgage and other loans		12
Other invested assets		$ 1
California
Schedule of Investments [Line Items]
Commercial mortgage loan, concentration percentage		30.00%
Texas
Schedule of Investments [Line Items]
Commercial mortgage loan, concentration percentage		8.00%
New York
Schedule of Investments [Line Items]
Commercial mortgage loan, concentration percentage		6.00%
Europe
Schedule of Investments [Line Items]
Commercial mortgage loan, concentration percentage		6.00%
Asia
Schedule of Investments [Line Items]
Commercial mortgage loan, concentration percentage		1.00%
Mexico
Schedule of Investments [Line Items]
Commercial mortgage loan, concentration percentage		1.00%
Australia
Schedule of Investments [Line Items]
Commercial mortgage loan, concentration percentage		1.00%
NAIC High or Highest Quality Rating | Fixed maturities
Schedule of Investments [Line Items]
Total Unrealized Losses		$ 26,879	33,778
NAIC Other Than High or Highest Quality Rating | Fixed maturities
Schedule of Investments [Line Items]
Total Unrealized Losses		$ 991	$ 2,166
[1] See Note 4 for details of balances associated with variable interest entities.

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