Reserves for Contract Onwer Account Balances (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	$ 29,268	$ 30,577
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0001 to 0100
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	11,835	11,984
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0100 to 0199
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	215	265
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	5,865	6,312
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	7,291	7,708
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	4	4
Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Renewable Beyond 12 Months
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	343	401
Total discretionary rate setting products
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	25,553	26,674
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	13,587	14,537
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0001 to 0100
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	8	11
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0100 to 0199
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	110	141
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	5,833	6,275
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	7,291	7,708
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	4	4
Policyholder Account Balance, at Guaranteed Minimum Crediting Rate | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Renewable Beyond 12 Months
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	341	398
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	4,097	4,772
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0001 to 0100
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	4,010	4,663
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0100 to 0199
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	56	73
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	31	36
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Renewable Beyond 12 Months
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0100
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	3,716	3,496
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0100 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0001 to 0100
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	3,671	3,451
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0100 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0100 to 0199
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	44	44
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0100 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	1	1
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0100 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0100 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0100 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Renewable Beyond 12 Months
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0101 to 0150
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	1,692	2,210
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0101 to 0150 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0001 to 0100
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	1,688	2,204
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0101 to 0150 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0100 to 0199
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	4	6
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0101 to 0150 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0101 to 0150 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0101 to 0150 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0101 to 0150 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Renewable Beyond 12 Months
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 to 0200
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	1,535	861
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 to 0200 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0001 to 0100
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	1,533	858
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 to 0200 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0100 to 0199
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 to 0200 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 to 0200 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 to 0200 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0151 to 0200 | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Renewable Beyond 12 Months
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	2	3
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0200 and Greater
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	926	798
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0200 and Greater | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0001 to 0100
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	925	797
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0200 and Greater | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0100 to 0199
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	1	1
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0200 and Greater | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0200 to 0299
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0200 and Greater | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0300 to 0399
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0200 and Greater | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Range from 0400 and Greater
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0200 and Greater | Policyholder Account Balance, Guaranteed Minimum Crediting Rate, Renewable Beyond 12 Months
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	0	0
Retirement
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	25,031	25,991	$ 27,951
Policyholder Account Balance, Premium Received	2,435	2,223
Policyholder Account Balance, Policy Charge	(50)	(9)
Policyholder Account Balance, Surrender and Withdrawal	(4,368)	(4,900)
Transfer to (from) Policyholder Account Balance (to) from General Account	313	(9)
Policyholder Account Balance, Interest Expense	$ 710	$ 735
Policyholder Account Balance, Weighted Average Crediting Rate	2.80%	2.70%
Policyholder Account Balance, Net Amount at Risk	$ 86	$ 116
Policyholder Account Balance, Cash Surrender Value	24,669	25,631
Transfer to (from) Policyholder Account Balance (to) from Separate Account	1,463	515
Retirement | VRIAC-managed institutional/mutual fund plan assets
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Transfer to (from) Policyholder Account Balance (to) from Separate Account	(1,150)	(524)
Other Operating Segment
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	3,516	3,915
non-puttable funding agreement
Reserves for Contract Onwer Account Balances (Table) [Line Items]
Policyholder Account Balance	$ 721	$ 671