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Policyholder Account Balances, Future Policy Benefits and Claims - Account Balances by Guaranteed Minimum Interest Rates (Details) $ in Millions	Jun. 30, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 34,353	$ 32,542	$ 27,947
Percentage of total account values that reset in:
Next 12 months	100.00%	100.00%
Greater than 12 months to 24 months	0.00%	0.00%
Greater than 24 months	0.00%	0.00%
Total	100.00%	100.00%
At Guaranteed Minimum
Percentage of total account values that reset in:
Next 12 months	100.00%	100.00%
Greater than 12 months to 24 months	0.00%	0.00%
Greater than 24 months	0.00%	0.00%
Total	100.00%	100.00%
1-49 bps above Guaranteed Minimum
Percentage of total account values that reset in:
Next 12 months	100.00%	100.00%
Greater than 12 months to 24 months	0.00%	0.00%
Greater than 24 months	0.00%	0.00%
Total	100.00%	100.00%
1-49 bps above Guaranteed Minimum | Minimum
Policyholder Account Balance [Line Items]
Policyholder account balance above guaranteed minimum crediting rate	0.0001	0.0001
1-49 bps above Guaranteed Minimum | Maximum
Policyholder Account Balance [Line Items]
Policyholder account balance above guaranteed minimum crediting rate	0.0049	0.0049
50-99 bps above Guaranteed Minimum
Percentage of total account values that reset in:
Next 12 months	99.90%	99.90%
Greater than 12 months to 24 months	0.00%	0.00%
Greater than 24 months	0.10%	0.10%
Total	100.00%	100.00%
50-99 bps above Guaranteed Minimum | Minimum
Policyholder Account Balance [Line Items]
Policyholder account balance above guaranteed minimum crediting rate	0.0050	0.0050
50-99 bps above Guaranteed Minimum | Maximum
Policyholder Account Balance [Line Items]
Policyholder account balance above guaranteed minimum crediting rate	0.0099	0.0099
100-150 bps above Guaranteed Minimum
Percentage of total account values that reset in:
Next 12 months	100.00%	100.00%
Greater than 12 months to 24 months	0.00%	0.00%
Greater than 24 months	0.00%	0.00%
Total	100.00%	100.00%
100-150 bps above Guaranteed Minimum | Minimum
Policyholder Account Balance [Line Items]
Policyholder account balance above guaranteed minimum crediting rate	0.0100	0.0100
100-150 bps above Guaranteed Minimum | Maximum
Policyholder Account Balance [Line Items]
Policyholder account balance above guaranteed minimum crediting rate	0.0150	0.0150
Greater than 150 bps above Guaranteed Minimum
Percentage of total account values that reset in:
Next 12 months	99.80%	99.80%
Greater than 12 months to 24 months	0.00%	0.00%
Greater than 24 months	0.20%	0.20%
Total	100.00%	100.00%
Greater than 150 bps above Guaranteed Minimum | Minimum
Policyholder Account Balance [Line Items]
Policyholder account balance above guaranteed minimum crediting rate	0.0150	0.0150
Total
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 11,188	$ 11,641
Total | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	10,110	10,625
Total | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	411	544
Total | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	305	262
Total | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	292	143
Total | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	70	67
Fixed accounts of variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	3,460	3,627
Fixed accounts of variable annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	3,272	3,442
Fixed accounts of variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	85	102
Fixed accounts of variable annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	83	65
Fixed accounts of variable annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	20	18
Fixed accounts of variable annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
Fixed accounts of structured variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	71	45
Fixed accounts of structured variable annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	16	16
Fixed accounts of structured variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	50	20
Fixed accounts of structured variable annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	5	9
Fixed accounts of structured variable annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
Fixed accounts of structured variable annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
Fixed annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	5,110	5,356
Fixed annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	4,584	4,848
Fixed annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	226	251
Fixed annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	184	154
Fixed annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	104	89
Fixed annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	12	14
Non-indexed accounts of fixed indexed annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	20	21
Non-indexed accounts of fixed indexed annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
Non-indexed accounts of fixed indexed annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	2	2
Non-indexed accounts of fixed indexed annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	5	5
Non-indexed accounts of fixed indexed annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	13	14
Non-indexed accounts of fixed indexed annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
Universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	1,345	1,377
Universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	1,305	1,344
Universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	10	8
Universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	22	19
Universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	7	6
Universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	1	0
Fixed accounts of variable universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	766	788
Fixed accounts of variable universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	650	679
Fixed accounts of variable universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	38	36
Fixed accounts of variable universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	6	6
Fixed accounts of variable universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	17	14
Fixed accounts of variable universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	55	53
Non-indexed accounts of indexed universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	133	131
Non-indexed accounts of indexed universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
Non-indexed accounts of indexed universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	125
Non-indexed accounts of indexed universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	4
Non-indexed accounts of indexed universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	131	2
Non-indexed accounts of indexed universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	2	0
Other life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	283	296
Other life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	283	296
Other life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
Other life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
Other life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
Other life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Total
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 822	$ 882
1% - 1.99% | Total | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.00%	1.00%
1% - 1.99% | Total | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.99%	1.99%
1% - 1.99% | Total | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 8	$ 111
1% - 1.99% | Total | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	341	354
1% - 1.99% | Total | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	278	239
1% - 1.99% | Total | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	138	123
1% - 1.99% | Total | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	57	55
1% - 1.99% | Fixed accounts of variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 189	$ 201
1% - 1.99% | Fixed accounts of variable annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.00%	1.00%
1% - 1.99% | Fixed accounts of variable annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.99%	1.99%
1% - 1.99% | Fixed accounts of variable annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 8	$ 24
1% - 1.99% | Fixed accounts of variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	79	95
1% - 1.99% | Fixed accounts of variable annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	83	65
1% - 1.99% | Fixed accounts of variable annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	19	17
1% - 1.99% | Fixed accounts of variable annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Fixed accounts of structured variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 55	$ 31
1% - 1.99% | Fixed accounts of structured variable annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.00%	1.00%
1% - 1.99% | Fixed accounts of structured variable annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.99%	1.99%
1% - 1.99% | Fixed accounts of structured variable annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 2
1% - 1.99% | Fixed accounts of structured variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	50	20
1% - 1.99% | Fixed accounts of structured variable annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	5	9
1% - 1.99% | Fixed accounts of structured variable annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Fixed accounts of structured variable annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Fixed annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 508	$ 577
1% - 1.99% | Fixed annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.00%	1.00%
1% - 1.99% | Fixed annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.99%	1.99%
1% - 1.99% | Fixed annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 85
1% - 1.99% | Fixed annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	210	237
1% - 1.99% | Fixed annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	182	152
1% - 1.99% | Fixed annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	104	89
1% - 1.99% | Fixed annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	12	14
1% - 1.99% | Non-indexed accounts of fixed indexed annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 20	$ 21
1% - 1.99% | Non-indexed accounts of fixed indexed annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.00%	1.00%
1% - 1.99% | Non-indexed accounts of fixed indexed annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.99%	1.99%
1% - 1.99% | Non-indexed accounts of fixed indexed annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
1% - 1.99% | Non-indexed accounts of fixed indexed annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	2	2
1% - 1.99% | Non-indexed accounts of fixed indexed annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	5	5
1% - 1.99% | Non-indexed accounts of fixed indexed annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	13	14
1% - 1.99% | Non-indexed accounts of fixed indexed annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
1% - 1.99% | Universal life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.00%	1.00%
1% - 1.99% | Universal life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.99%	1.99%
1% - 1.99% | Universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
1% - 1.99% | Universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Fixed accounts of variable universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 48	$ 46
1% - 1.99% | Fixed accounts of variable universal life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.00%	1.00%
1% - 1.99% | Fixed accounts of variable universal life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.99%	1.99%
1% - 1.99% | Fixed accounts of variable universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
1% - 1.99% | Fixed accounts of variable universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Fixed accounts of variable universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	3	4
1% - 1.99% | Fixed accounts of variable universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	2	1
1% - 1.99% | Fixed accounts of variable universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	43	41
1% - 1.99% | Non-indexed accounts of indexed universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 2	$ 6
1% - 1.99% | Non-indexed accounts of indexed universal life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.00%	1.00%
1% - 1.99% | Non-indexed accounts of indexed universal life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.99%	1.99%
1% - 1.99% | Non-indexed accounts of indexed universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
1% - 1.99% | Non-indexed accounts of indexed universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Non-indexed accounts of indexed universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	4
1% - 1.99% | Non-indexed accounts of indexed universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	2
1% - 1.99% | Non-indexed accounts of indexed universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	2	0
1% - 1.99% | Other life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
1% - 1.99% | Other life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.00%	1.00%
1% - 1.99% | Other life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	1.99%	1.99%
1% - 1.99% | Other life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
1% - 1.99% | Other life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Other life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Other life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Other life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Total
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 392	$ 391
2% - 2.99% | Total | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.00%	2.00%
2% - 2.99% | Total | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.99%	2.99%
2% - 2.99% | Total | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 187	$ 204
2% - 2.99% | Total | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	40	157
2% - 2.99% | Total | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	20	17
2% - 2.99% | Total | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	132	1
2% - 2.99% | Total | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	13	12
2% - 2.99% | Fixed accounts of variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 105	$ 112
2% - 2.99% | Fixed accounts of variable annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.00%	2.00%
2% - 2.99% | Fixed accounts of variable annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.99%	2.99%
2% - 2.99% | Fixed accounts of variable annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 102	$ 112
2% - 2.99% | Fixed accounts of variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	3	0
2% - 2.99% | Fixed accounts of variable annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Fixed accounts of variable annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Fixed accounts of variable annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Fixed accounts of structured variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 15	$ 13
2% - 2.99% | Fixed accounts of structured variable annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.00%	2.00%
2% - 2.99% | Fixed accounts of structured variable annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.99%	2.99%
2% - 2.99% | Fixed accounts of structured variable annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 15	$ 13
2% - 2.99% | Fixed accounts of structured variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Fixed accounts of structured variable annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Fixed accounts of structured variable annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Fixed accounts of structured variable annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Fixed annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 35	$ 38
2% - 2.99% | Fixed annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.00%	2.00%
2% - 2.99% | Fixed annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.99%	2.99%
2% - 2.99% | Fixed annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 18	$ 22
2% - 2.99% | Fixed annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	16	14
2% - 2.99% | Fixed annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	1	2
2% - 2.99% | Fixed annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Fixed annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Non-indexed accounts of fixed indexed annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
2% - 2.99% | Non-indexed accounts of fixed indexed annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.00%	2.00%
2% - 2.99% | Non-indexed accounts of fixed indexed annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.99%	2.99%
2% - 2.99% | Non-indexed accounts of fixed indexed annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
2% - 2.99% | Non-indexed accounts of fixed indexed annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Non-indexed accounts of fixed indexed annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Non-indexed accounts of fixed indexed annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Non-indexed accounts of fixed indexed annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 73	$ 69
2% - 2.99% | Universal life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.00%	2.00%
2% - 2.99% | Universal life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.99%	2.99%
2% - 2.99% | Universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 48	$ 50
2% - 2.99% | Universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	6	4
2% - 2.99% | Universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	18	15
2% - 2.99% | Universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	1	0
2% - 2.99% | Fixed accounts of variable universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 33	$ 34
2% - 2.99% | Fixed accounts of variable universal life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.00%	2.00%
2% - 2.99% | Fixed accounts of variable universal life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.99%	2.99%
2% - 2.99% | Fixed accounts of variable universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 4	$ 7
2% - 2.99% | Fixed accounts of variable universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	15	14
2% - 2.99% | Fixed accounts of variable universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	1	0
2% - 2.99% | Fixed accounts of variable universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	1	1
2% - 2.99% | Fixed accounts of variable universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	12	12
2% - 2.99% | Non-indexed accounts of indexed universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 131	$ 125
2% - 2.99% | Non-indexed accounts of indexed universal life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.00%	2.00%
2% - 2.99% | Non-indexed accounts of indexed universal life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.99%	2.99%
2% - 2.99% | Non-indexed accounts of indexed universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
2% - 2.99% | Non-indexed accounts of indexed universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	125
2% - 2.99% | Non-indexed accounts of indexed universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Non-indexed accounts of indexed universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	131	0
2% - 2.99% | Non-indexed accounts of indexed universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Other life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
2% - 2.99% | Other life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.00%	2.00%
2% - 2.99% | Other life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	2.99%	2.99%
2% - 2.99% | Other life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
2% - 2.99% | Other life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Other life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Other life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
2% - 2.99% | Other life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Total
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 5,006	$ 5,295
3% - 3.99% | Total | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.00%	3.00%
3% - 3.99% | Total | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.99%	3.99%
3% - 3.99% | Total | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 4,973	$ 5,262
3% - 3.99% | Total | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	4	8
3% - 3.99% | Total | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	7	6
3% - 3.99% | Total | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	22	19
3% - 3.99% | Total | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Fixed accounts of variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 1,793	$ 1,902
3% - 3.99% | Fixed accounts of variable annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.00%	3.00%
3% - 3.99% | Fixed accounts of variable annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.99%	3.99%
3% - 3.99% | Fixed accounts of variable annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 1,789	$ 1,894
3% - 3.99% | Fixed accounts of variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	3	7
3% - 3.99% | Fixed accounts of variable annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Fixed accounts of variable annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	1	1
3% - 3.99% | Fixed accounts of variable annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Fixed accounts of structured variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 1	$ 1
3% - 3.99% | Fixed accounts of structured variable annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.00%	3.00%
3% - 3.99% | Fixed accounts of structured variable annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.99%	3.99%
3% - 3.99% | Fixed accounts of structured variable annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 1	$ 1
3% - 3.99% | Fixed accounts of structured variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Fixed accounts of structured variable annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Fixed accounts of structured variable annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Fixed accounts of structured variable annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Fixed annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 2,250	$ 2,410
3% - 3.99% | Fixed annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.00%	3.00%
3% - 3.99% | Fixed annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.99%	3.99%
3% - 3.99% | Fixed annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 2,249	$ 2,410
3% - 3.99% | Fixed annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Fixed annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	1	0
3% - 3.99% | Fixed annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Fixed annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Non-indexed accounts of fixed indexed annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
3% - 3.99% | Non-indexed accounts of fixed indexed annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.00%	3.00%
3% - 3.99% | Non-indexed accounts of fixed indexed annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.99%	3.99%
3% - 3.99% | Non-indexed accounts of fixed indexed annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
3% - 3.99% | Non-indexed accounts of fixed indexed annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Non-indexed accounts of fixed indexed annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Non-indexed accounts of fixed indexed annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Non-indexed accounts of fixed indexed annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 815	$ 831
3% - 3.99% | Universal life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.00%	3.00%
3% - 3.99% | Universal life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.99%	3.99%
3% - 3.99% | Universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 804	$ 821
3% - 3.99% | Universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	4	4
3% - 3.99% | Universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	7	6
3% - 3.99% | Universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Fixed accounts of variable universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 120	$ 123
3% - 3.99% | Fixed accounts of variable universal life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.00%	3.00%
3% - 3.99% | Fixed accounts of variable universal life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.99%	3.99%
3% - 3.99% | Fixed accounts of variable universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 103	$ 108
3% - 3.99% | Fixed accounts of variable universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	1	1
3% - 3.99% | Fixed accounts of variable universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	2	2
3% - 3.99% | Fixed accounts of variable universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	14	12
3% - 3.99% | Fixed accounts of variable universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Non-indexed accounts of indexed universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
3% - 3.99% | Non-indexed accounts of indexed universal life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.00%	3.00%
3% - 3.99% | Non-indexed accounts of indexed universal life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.99%	3.99%
3% - 3.99% | Non-indexed accounts of indexed universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
3% - 3.99% | Non-indexed accounts of indexed universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Non-indexed accounts of indexed universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Non-indexed accounts of indexed universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Non-indexed accounts of indexed universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Other life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 27	$ 28
3% - 3.99% | Other life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.00%	3.00%
3% - 3.99% | Other life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	3.99%	3.99%
3% - 3.99% | Other life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 27	$ 28
3% - 3.99% | Other life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Other life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Other life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
3% - 3.99% | Other life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Total
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 4,968	$ 5,073
4% - 5.00% | Total | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	4.00%	4.00%
4% - 5.00% | Total | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	5.00%	5.00%
4% - 5.00% | Total | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 4,942	$ 5,048
4% - 5.00% | Total | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	26	25
4% - 5.00% | Total | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Total | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Total | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed accounts of variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 1,373	$ 1,412
4% - 5.00% | Fixed accounts of variable annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	4.00%	4.00%
4% - 5.00% | Fixed accounts of variable annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	5.00%	5.00%
4% - 5.00% | Fixed accounts of variable annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 1,373	$ 1,412
4% - 5.00% | Fixed accounts of variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed accounts of variable annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed accounts of variable annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed accounts of variable annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed accounts of structured variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
4% - 5.00% | Fixed accounts of structured variable annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	4.00%	4.00%
4% - 5.00% | Fixed accounts of structured variable annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	5.00%	5.00%
4% - 5.00% | Fixed accounts of structured variable annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
4% - 5.00% | Fixed accounts of structured variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed accounts of structured variable annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed accounts of structured variable annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed accounts of structured variable annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 2,317	$ 2,331
4% - 5.00% | Fixed annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	4.00%	4.00%
4% - 5.00% | Fixed annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	5.00%	5.00%
4% - 5.00% | Fixed annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 2,317	$ 2,331
4% - 5.00% | Fixed annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Non-indexed accounts of fixed indexed annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
4% - 5.00% | Non-indexed accounts of fixed indexed annuities | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	4.00%	4.00%
4% - 5.00% | Non-indexed accounts of fixed indexed annuities | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	5.00%	5.00%
4% - 5.00% | Non-indexed accounts of fixed indexed annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
4% - 5.00% | Non-indexed accounts of fixed indexed annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Non-indexed accounts of fixed indexed annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Non-indexed accounts of fixed indexed annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Non-indexed accounts of fixed indexed annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 457	$ 477
4% - 5.00% | Universal life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	4.00%	4.00%
4% - 5.00% | Universal life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	5.00%	5.00%
4% - 5.00% | Universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 453	$ 473
4% - 5.00% | Universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	4	4
4% - 5.00% | Universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed accounts of variable universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 565	$ 585
4% - 5.00% | Fixed accounts of variable universal life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	4.00%	4.00%
4% - 5.00% | Fixed accounts of variable universal life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	5.00%	5.00%
4% - 5.00% | Fixed accounts of variable universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 543	$ 564
4% - 5.00% | Fixed accounts of variable universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	22	21
4% - 5.00% | Fixed accounts of variable universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed accounts of variable universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Fixed accounts of variable universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Non-indexed accounts of indexed universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
4% - 5.00% | Non-indexed accounts of indexed universal life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	4.00%	4.00%
4% - 5.00% | Non-indexed accounts of indexed universal life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	5.00%	5.00%
4% - 5.00% | Non-indexed accounts of indexed universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0
4% - 5.00% | Non-indexed accounts of indexed universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Non-indexed accounts of indexed universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Non-indexed accounts of indexed universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Non-indexed accounts of indexed universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Other life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 256	$ 268
4% - 5.00% | Other life insurance | Minimum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	4.00%	4.00%
4% - 5.00% | Other life insurance | Maximum
Policyholder Account Balance [Line Items]
Range of Guaranteed Minimum Crediting Rates	5.00%	5.00%
4% - 5.00% | Other life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 256	$ 268
4% - 5.00% | Other life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Other life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Other life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
4% - 5.00% | Other life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0	$ 0

X

- Definition

Policyholder Account Balance, Percentage

+ References

No definition available.

+ Details

Name:	amp_PolicyholderAccountBalancePercentage
Namespace Prefix:	amp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Policyholder Account Balance, Percentage, Reset

+ References

No definition available.

+ Details

Name:	amp_PolicyholderAccountBalancePercentageResetAbstract
Namespace Prefix:	amp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Policyholder Account Balance, Percentage, Reset In 12 Months To 24 Months

+ References

No definition available.

+ Details

Name:	amp_PolicyholderAccountBalancePercentageResetIn12MonthsTo24Months
Namespace Prefix:	amp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Policyholder Account Balance, Percentage, Reset In Greater Than 24 Months

+ References

No definition available.

+ Details

Name:	amp_PolicyholderAccountBalancePercentageResetInGreaterThan24Months
Namespace Prefix:	amp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Policyholder Account Balance, Percentage, Reset In Next 12 Months

+ References

No definition available.

+ Details

Name:	amp_PolicyholderAccountBalancePercentageResetInNext12Months
Namespace Prefix:	amp_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Value above guaranteed minimum crediting rate on policyholder account balance.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 944
-SubTopic 40
-Name Accounting Standards Codification
-Section 55
-Paragraph 29F
-Publisher FASB
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