Fair Value (Recurring Fair Value Measurements) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	$ 284,178	$ 340,274
Equity securities	1,085	1,269
Unit-linked and FVO Securities (2)	9,875	12,142
Short-term investments (3)	3,043	7,176
Residential mortgage loans — FVO	82,055	79,353
Derivative assets	11,583	10,466
Separate account assets	143,829	179,873
Liabilities [Abstract]
Derivative liabilities	6,855	3,852
Embedded derivatives within liability host contracts	531	649
Separate account liabilities	143,829	179,873
Residential mortgage loans - FVO
Assets [Abstract]
Residential mortgage loans — FVO	109	127
Recurring
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	284,178	340,274
Equity securities	1,085	1,269
Unit-linked and FVO Securities (2)	9,875	12,142
Short-term investments (3)	2,607	6,560
Other investments	1,178	959
Derivative assets	11,583	10,466
Embedded derivatives within asset host contracts	35	38
Separate account assets	143,829	179,873
Total assets (7)	454,479	551,708
Liabilities [Abstract]
Derivative liabilities	6,855	3,852
Embedded derivatives within liability host contracts	531	649
Total liabilities	7,431	4,526
Recurring \| Interest rate
Assets [Abstract]
Derivative assets	5,031	6,678
Liabilities [Abstract]
Derivative liabilities	2,419	281
Recurring \| Foreign currency exchange rate contracts
Assets [Abstract]
Derivative assets	5,163	2,554
Liabilities [Abstract]
Derivative liabilities	3,888	2,920
Recurring \| Credit
Assets [Abstract]
Derivative assets	63	190
Liabilities [Abstract]
Derivative liabilities	168	125
Recurring \| Equity market contracts
Assets [Abstract]
Derivative assets	1,326	1,044
Liabilities [Abstract]
Derivative liabilities	380	526
Recurring \| Derivative Liabilities Within Separate Accounts
Liabilities [Abstract]
Separate account liabilities	45	25
Recurring \| Residential mortgage loans - FVO
Assets [Abstract]
Residential mortgage loans — FVO	109	127
Recurring \| U.S. corporate
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	80,555	93,034
Recurring \| Foreign corporate
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	54,177	63,640
Recurring \| Foreign government
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	48,016	61,609
Recurring \| U.S. government and agency
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	33,690	46,599
Recurring \| RMBS
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	27,303	30,404
Recurring \| ABS & CLO
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	17,054	18,569
Recurring \| Municipals
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	12,513	14,212
Recurring \| CMBS
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	10,870	12,207
Recurring \| Level 1
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	16,825	25,489
Equity securities	720	931
Unit-linked and FVO Securities (2)	7,319	9,173
Short-term investments (3)	1,944	5,607
Other investments	0	0
Derivative assets	42	16
Embedded derivatives within asset host contracts	0	0
Separate account assets	61,489	76,312
Total assets (7)	88,339	117,528
Liabilities [Abstract]
Derivative liabilities	15	7
Embedded derivatives within liability host contracts	0	0
Total liabilities	29	14
Recurring \| Level 1 \| Interest rate
Assets [Abstract]
Derivative assets	1	4
Liabilities [Abstract]
Derivative liabilities	7	0
Recurring \| Level 1 \| Foreign currency exchange rate contracts
Assets [Abstract]
Derivative assets	3	0
Liabilities [Abstract]
Derivative liabilities	0	2
Recurring \| Level 1 \| Credit
Assets [Abstract]
Derivative assets	0	0
Liabilities [Abstract]
Derivative liabilities	0	0
Recurring \| Level 1 \| Equity market contracts
Assets [Abstract]
Derivative assets	38	12
Liabilities [Abstract]
Derivative liabilities	8	5
Recurring \| Level 1 \| Derivative Liabilities Within Separate Accounts
Liabilities [Abstract]
Separate account liabilities	14	7
Recurring \| Level 1 \| Residential mortgage loans - FVO
Assets [Abstract]
Residential mortgage loans — FVO	0	0
Recurring \| Level 1 \| U.S. corporate
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	0	0
Recurring \| Level 1 \| Foreign corporate
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	0	0
Recurring \| Level 1 \| Foreign government
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	0	0
Recurring \| Level 1 \| U.S. government and agency
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	16,725	25,482
Recurring \| Level 1 \| RMBS
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	100	7
Recurring \| Level 1 \| ABS & CLO
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	0	0
Recurring \| Level 1 \| Municipals
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	0	0
Recurring \| Level 1 \| CMBS
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	0	0
Recurring \| Level 2
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	239,321	283,388
Equity securities	186	187
Unit-linked and FVO Securities (2)	1,814	2,068
Short-term investments (3)	544	950
Other investments	165	61
Derivative assets	11,153	10,326
Embedded derivatives within asset host contracts	0	0
Separate account assets	81,100	101,424
Total assets (7)	334,283	398,404
Liabilities [Abstract]
Derivative liabilities	6,165	3,569
Embedded derivatives within liability host contracts	0	0
Total liabilities	6,186	3,581
Recurring \| Level 2 \| Interest rate
Assets [Abstract]
Derivative assets	4,695	6,577
Liabilities [Abstract]
Derivative liabilities	1,983	259
Recurring \| Level 2 \| Foreign currency exchange rate contracts
Assets [Abstract]
Derivative assets	5,140	2,551
Liabilities [Abstract]
Derivative liabilities	3,680	2,676
Recurring \| Level 2 \| Credit
Assets [Abstract]
Derivative assets	37	173
Liabilities [Abstract]
Derivative liabilities	130	113
Recurring \| Level 2 \| Equity market contracts
Assets [Abstract]
Derivative assets	1,281	1,025
Liabilities [Abstract]
Derivative liabilities	372	521
Recurring \| Level 2 \| Derivative Liabilities Within Separate Accounts
Liabilities [Abstract]
Separate account liabilities	21	12
Recurring \| Level 2 \| Residential mortgage loans - FVO
Assets [Abstract]
Residential mortgage loans — FVO	0	0
Recurring \| Level 2 \| U.S. corporate
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	69,753	81,266
Recurring \| Level 2 \| Foreign corporate
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	42,397	49,973
Recurring \| Level 2 \| Foreign government
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	47,913	61,518
Recurring \| Level 2 \| U.S. government and agency
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	16,965	21,117
Recurring \| Level 2 \| RMBS
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	24,503	27,270
Recurring \| Level 2 \| ABS & CLO
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	15,140	16,707
Recurring \| Level 2 \| Municipals
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	12,513	14,212
Recurring \| Level 2 \| CMBS
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	10,137	11,325
Recurring \| Level 3
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	28,032	31,397
Equity securities	179	151
Unit-linked and FVO Securities (2)	742	901
Short-term investments (3)	119	3
Other investments	1,013	898
Derivative assets	388	124
Embedded derivatives within asset host contracts	35	38
Separate account assets	1,240	2,137
Total assets (7)	31,857	35,776
Liabilities [Abstract]
Derivative liabilities	675	276
Embedded derivatives within liability host contracts	531	649
Total liabilities	1,216	931
Recurring \| Level 3 \| Interest rate
Assets [Abstract]
Derivative assets	335	97
Liabilities [Abstract]
Derivative liabilities	429	22
Recurring \| Level 3 \| Foreign currency exchange rate contracts
Assets [Abstract]
Derivative assets	20	3
Liabilities [Abstract]
Derivative liabilities	208	242
Recurring \| Level 3 \| Credit
Assets [Abstract]
Derivative assets	26	17
Liabilities [Abstract]
Derivative liabilities	38	12
Recurring \| Level 3 \| Equity market contracts
Assets [Abstract]
Derivative assets	7	7
Liabilities [Abstract]
Derivative liabilities	0	0
Recurring \| Level 3 \| Derivative Liabilities Within Separate Accounts
Liabilities [Abstract]
Separate account liabilities	10	6
Recurring \| Level 3 \| Residential mortgage loans - FVO
Assets [Abstract]
Residential mortgage loans — FVO	109	127
Recurring \| Level 3 \| U.S. corporate
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	10,802	11,768
Recurring \| Level 3 \| Foreign corporate
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	11,780	13,667
Recurring \| Level 3 \| Foreign government
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	103	91
Recurring \| Level 3 \| U.S. government and agency
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	0	0
Recurring \| Level 3 \| RMBS
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	2,700	3,127
Recurring \| Level 3 \| ABS & CLO
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	1,914	1,862
Recurring \| Level 3 \| Municipals
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	0	0
Recurring \| Level 3 \| CMBS
Assets [Abstract]
Estimated Fair Value of Fixed Maturity Securities AFS	733	882
Other limited partnership interests \| Recurring
Assets [Abstract]
Investments, Fair Value Disclosure	$ 95	$ 99

Investments for which the FVO has been elected, or are otherwise required to be carried at estimated fair value.

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