Reserves for Future Policy Benefits and Contract Owner Account Balances - Contract Owner Account Balances (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Policyholder Account Balance [Roll Forward]
Beginning balance	$ 39,174
Interest credited	992	$ 1,076	$ 962
Ending balance	37,104	39,174
Contract owner account balance	37,104	39,174
Net transfers (from) to the separate account	(1,149)	(523)
Up to 1.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	12,528
Ending balance	12,329	12,528
Contract owner account balance	12,329	12,528
1.01% - 2.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	725
Ending balance	612	725
Contract owner account balance	612	725
2.01% - 3.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	11,492
Ending balance	10,485	11,492
Contract owner account balance	10,485	11,492
3.01% - 4.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	9,031
Ending balance	8,519	9,031
Contract owner account balance	8,519	9,031
4.01% and Above
Policyholder Account Balance [Roll Forward]
Beginning balance	1,649
Ending balance	1,544	1,649
Contract owner account balance	1,544	1,649
Renewable beyond 12 months (MYGA)
Policyholder Account Balance [Roll Forward]
Beginning balance	431
Ending balance	366	431
Contract owner account balance	366	431
Total
Policyholder Account Balance [Roll Forward]
Beginning balance	35,856
Ending balance	33,855	35,856
Contract owner account balance	33,855	35,856
At GMIR
Policyholder Account Balance [Roll Forward]
Beginning balance	22,739
Ending balance	20,981	22,739
Contract owner account balance	20,981	22,739
At GMIR | Up to 1.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	120
Ending balance	82	120
Contract owner account balance	82	120
At GMIR | 1.01% - 2.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	527
Ending balance	437	527
Contract owner account balance	437	527
At GMIR | 2.01% - 3.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	11,225
Ending balance	10,266	11,225
Contract owner account balance	10,266	11,225
At GMIR | 3.01% - 4.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	8,873
Ending balance	8,368	8,873
Contract owner account balance	8,368	8,873
At GMIR | 4.01% and Above
Policyholder Account Balance [Roll Forward]
Beginning balance	1,566
Ending balance	1,464	1,566
Contract owner account balance	1,464	1,566
At GMIR | Renewable beyond 12 months (MYGA)
Policyholder Account Balance [Roll Forward]
Beginning balance	428
Ending balance	364	428
Contract owner account balance	364	428
Up to .50% Above GMIR
Policyholder Account Balance [Roll Forward]
Beginning balance	5,529
Ending balance	4,807	5,529
Contract owner account balance	4,807	5,529
Up to .50% Above GMIR | Up to 1.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	5,070
Ending balance	4,378	5,070
Contract owner account balance	4,378	5,070
Up to .50% Above GMIR | 1.01% - 2.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	131
Ending balance	106	131
Contract owner account balance	106	131
Up to .50% Above GMIR | 2.01% - 3.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	93
Ending balance	93	93
Contract owner account balance	93	93
Up to .50% Above GMIR | 3.01% - 4.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	152
Ending balance	150	152
Contract owner account balance	150	152
Up to .50% Above GMIR | 4.01% and Above
Policyholder Account Balance [Roll Forward]
Beginning balance	83
Ending balance	80	83
Contract owner account balance	80	83
Up to .50% Above GMIR | Renewable beyond 12 months (MYGA)
Policyholder Account Balance [Roll Forward]
Beginning balance	0
Ending balance	0	0
Contract owner account balance	0	0
0.51% - 1.00% Above GMIR
Policyholder Account Balance [Roll Forward]
Beginning balance	3,573
Ending balance	3,807	3,573
Contract owner account balance	3,807	3,573
0.51% - 1.00% Above GMIR | Up to 1.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	3,460
Ending balance	3,691	3,460
Contract owner account balance	3,691	3,460
0.51% - 1.00% Above GMIR | 1.01% - 2.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	50
Ending balance	54	50
Contract owner account balance	54	50
0.51% - 1.00% Above GMIR | 2.01% - 3.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	63
Ending balance	62	63
Contract owner account balance	62	63
0.51% - 1.00% Above GMIR | 3.01% - 4.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	0
Ending balance	0	0
Contract owner account balance	0	0
0.51% - 1.00% Above GMIR | 4.01% and Above
Policyholder Account Balance [Roll Forward]
Beginning balance	0
Ending balance	0	0
Contract owner account balance	0	0
0.51% - 1.00% Above GMIR | Renewable beyond 12 months (MYGA)
Policyholder Account Balance [Roll Forward]
Beginning balance	0
Ending balance	0	0
Contract owner account balance	0	0
1.01% - 1.50% Above GMIR
Policyholder Account Balance [Roll Forward]
Beginning balance	2,337
Ending balance	1,773	2,337
Contract owner account balance	1,773	2,337
1.01% - 1.50% Above GMIR | Up to 1.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	2,215
Ending balance	1,705	2,215
Contract owner account balance	1,705	2,215
1.01% - 1.50% Above GMIR | 1.01% - 2.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	8
Ending balance	7	8
Contract owner account balance	7	8
1.01% - 1.50% Above GMIR | 2.01% - 3.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	108
Ending balance	60	108
Contract owner account balance	60	108
1.01% - 1.50% Above GMIR | 3.01% - 4.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	6
Ending balance	1	6
Contract owner account balance	1	6
1.01% - 1.50% Above GMIR | 4.01% and Above
Policyholder Account Balance [Roll Forward]
Beginning balance	0
Ending balance	0	0
Contract owner account balance	0	0
1.01% - 1.50% Above GMIR | Renewable beyond 12 months (MYGA)
Policyholder Account Balance [Roll Forward]
Beginning balance	0
Ending balance	0	0
Contract owner account balance	0	0
1.51% - 2.00% Above GMIR
Policyholder Account Balance [Roll Forward]
Beginning balance	869
Ending balance	1,549	869
Contract owner account balance	1,549	869
1.51% - 2.00% Above GMIR | Up to 1.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	863
Ending balance	1,545	863
Contract owner account balance	1,545	863
1.51% - 2.00% Above GMIR | 1.01% - 2.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	3
Ending balance	2	3
Contract owner account balance	2	3
1.51% - 2.00% Above GMIR | 2.01% - 3.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	0
Ending balance	0	0
Contract owner account balance	0	0
1.51% - 2.00% Above GMIR | 3.01% - 4.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	0
Ending balance		0
Contract owner account balance		0
1.51% - 2.00% Above GMIR | 4.01% and Above
Policyholder Account Balance [Roll Forward]
Beginning balance	0
Ending balance	0	0
Contract owner account balance	0	0
1.51% - 2.00% Above GMIR | Renewable beyond 12 months (MYGA)
Policyholder Account Balance [Roll Forward]
Beginning balance	3
Ending balance	2	3
Contract owner account balance	2	3
More than 2.00% Above GMIR
Policyholder Account Balance [Roll Forward]
Beginning balance	809
Ending balance	938	809
Contract owner account balance	938	809
More than 2.00% Above GMIR | Up to 1.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	800
Ending balance	928	800
Contract owner account balance	928	800
More than 2.00% Above GMIR | 1.01% - 2.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	6
Ending balance	6	6
Contract owner account balance	6	6
More than 2.00% Above GMIR | 2.01% - 3.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	3
Ending balance	4	3
Contract owner account balance	4	3
More than 2.00% Above GMIR | 3.01% - 4.00%
Policyholder Account Balance [Roll Forward]
Beginning balance	0
Ending balance	0	0
Contract owner account balance	0	0
More than 2.00% Above GMIR | 4.01% and Above
Policyholder Account Balance [Roll Forward]
Beginning balance	0
Ending balance	0	0
Contract owner account balance	0	0
More than 2.00% Above GMIR | Renewable beyond 12 months (MYGA)
Policyholder Account Balance [Roll Forward]
Beginning balance	0
Ending balance	0	0
Contract owner account balance	0	0
Wealth Solutions
Policyholder Account Balance [Roll Forward]
Beginning balance	31,139	33,622
Deposits	2,505	2,309
Fee income	(50)	(9)
Surrenders, withdrawals and benefits	(5,127)	(5,663)
Net transfers (from) to the general account	312	(5)
Interest credited	845	885
Ending balance	$ 29,624	$ 31,139	33,622
Weighted-average crediting rate	2.80%	2.80%
Net amount at risk	$ 90	$ 123
Cash surrender value	29,169	30,676
Contract owner account balance	29,624	31,139	33,622
Net transfers (from) to the separate account	(1,461)	(518)
Businesses Exited
Policyholder Account Balance [Roll Forward]
Beginning balance	4,635	5,146
Deposits	287	288
Fee income	(371)	(373)
Surrenders, withdrawals and benefits	(544)	(577)
Net transfers (from) to the general account	4	10
Interest credited	171	141
Ending balance	$ 4,182	$ 4,635	5,146
Weighted-average crediting rate	3.90%	2.50%
Net amount at risk	$ 676	$ 734
Cash surrender value	1,236	1,491
Contract owner account balance	4,182	4,635	$ 5,146
Other
Policyholder Account Balance [Roll Forward]
Beginning balance	950
Ending balance	891	950
Contract owner account balance	891	950
Non-puttable funding agreement
Policyholder Account Balance [Roll Forward]
Beginning balance	1,175
Ending balance	1,249	1,175
Contract owner account balance	1,249	1,175
Business Exited Excluded
Policyholder Account Balance [Roll Forward]
Beginning balance	1,275
Ending balance	1,158	1,275
Contract owner account balance	$ 1,158	$ 1,275