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Policyholder Account Balances, Future Policy Benefits and Claims - Account Balances by Guaranteed Minimum Interest Rates (Details) $ in Millions	Sep. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 31,580	$ 27,947	$ 24,986
Percentage of total account values that reset in:
Next 12 months	100.00%	99.90%
Greater than 12 months to 24 months	0.00%	0.10%
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%	99.90%
Greater than 12 months to 24 months	0.00%	0.10%
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%	99.50%
Greater than 12 months to 24 months	0.00%	0.50%
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%	99.30%
Greater than 12 months to 24 months	0.00%	0.60%
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%	100.00%
Greater than 12 months to 24 months	0.00%	0.00%
Greater than 24 months	0.20%	0.00%
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	$ 11,890	$ 12,848
Total | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	10,840	11,836
Total | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	568	571
Total | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	266	272
Total | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	166	135
Total | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	50	34
Fixed accounts of variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	3,732	4,110
Fixed accounts of variable annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	3,540	3,908
Fixed accounts of variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	106	132
Fixed accounts of variable annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	66	52
Fixed accounts of variable annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	18	16
Fixed accounts of variable annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	2	2
Fixed accounts of structured variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	43	39
Fixed accounts of structured variable annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	15	12
Fixed accounts of structured variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	23	18
Fixed accounts of structured variable annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	4	7
Fixed accounts of structured variable annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	1	2
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	5,474	5,967
Fixed annuities | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	4,930	5,298
Fixed annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	266	392
Fixed annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	165	184
Fixed annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	113	93
Fixed annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
Non-indexed accounts of fixed indexed annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	22	22
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	6	7
Non-indexed accounts of fixed indexed annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	14	13
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	1,392	1,445
Universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	1,361	1,423
Universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	8	5
Universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	17	13
Universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	5	4
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	794	810
Fixed accounts of variable universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	691	742
Fixed accounts of variable universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	35	22
Fixed accounts of variable universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	8	7
Fixed accounts of variable universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	13	7
Fixed accounts of variable universal life insurance | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	47	32
Non-indexed accounts of indexed universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	130	130
Non-indexed accounts of indexed universal life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	128
Non-indexed accounts of indexed universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	128	0
Non-indexed accounts of indexed universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	2
Non-indexed accounts of indexed universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	2	0
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
Other life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	303	325
Other life insurance | At Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	303	325
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	$ 923	$ 1,085
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	$ 117	$ 151
1% - 1.99% | Total | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	374	530
1% - 1.99% | Total | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	245	255
1% - 1.99% | Total | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	148	123
1% - 1.99% | Total | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	39	26
1% - 1.99% | Fixed accounts of variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 211	$ 243
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	$ 27	$ 43
1% - 1.99% | Fixed accounts of variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	99	131
1% - 1.99% | Fixed accounts of variable annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	66	52
1% - 1.99% | Fixed accounts of variable annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	17	15
1% - 1.99% | Fixed accounts of variable annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	2	2
1% - 1.99% | Fixed accounts of structured variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 30	$ 28
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	$ 2	$ 1
1% - 1.99% | Fixed accounts of structured variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	23	18
1% - 1.99% | Fixed accounts of structured variable annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	4	7
1% - 1.99% | Fixed accounts of structured variable annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	1	2
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	$ 615	$ 760
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	$ 88	$ 107
1% - 1.99% | Fixed annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	250	377
1% - 1.99% | Fixed annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	164	183
1% - 1.99% | Fixed annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	113	93
1% - 1.99% | Fixed annuities | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	0
1% - 1.99% | Non-indexed accounts of fixed indexed annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 22	$ 22
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	6	7
1% - 1.99% | Non-indexed accounts of fixed indexed annuities | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	14	13
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	$ 43	$ 30
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	2
1% - 1.99% | Fixed accounts of variable universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	5	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	1	0
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	37	24
1% - 1.99% | Non-indexed accounts of indexed universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 2	$ 2
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	2
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	2	0
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	0	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	$ 401	$ 425
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	$ 212	$ 376
2% - 2.99% | Total | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	163	30
2% - 2.99% | Total | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	14	10
2% - 2.99% | Total | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	1	1
2% - 2.99% | Total | Greater than 150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	11	8
2% - 2.99% | Fixed accounts of variable annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 119	$ 138
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	$ 119	$ 137
2% - 2.99% | Fixed accounts of variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	1
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	$ 13	$ 11
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	$ 13	$ 11
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	$ 40	$ 51
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	$ 23	$ 36
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	1
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	$ 68	$ 63
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	$ 49	$ 51
2% - 2.99% | Universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	5	3
2% - 2.99% | Universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	13	9
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	$ 8	$ 13
2% - 2.99% | Fixed accounts of variable universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	14	12
2% - 2.99% | Fixed accounts of variable universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	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	10	8
2% - 2.99% | Non-indexed accounts of indexed universal life insurance
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 128	$ 128
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	$ 128
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	128	0
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	0	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	$ 5,446	$ 6,058
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	$ 5,414	$ 6,036
3% - 3.99% | Total | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	8	4
3% - 3.99% | Total | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	7	7
3% - 3.99% | Total | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	17	11
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	$ 1,966	$ 2,215
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	$ 1,958	$ 2,214
3% - 3.99% | Fixed accounts of variable annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	7	0
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	$ 0	$ 0
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	$ 0	$ 0
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	$ 2,486	$ 2,817
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	$ 2,486	$ 2,816
3% - 3.99% | Fixed annuities | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	1
3% - 3.99% | Fixed annuities | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	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	$ 839	$ 863
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	$ 830	$ 854
3% - 3.99% | Universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	0	1
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	5	4
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	$ 126	$ 133
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	$ 111	$ 122
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	2
3% - 3.99% | Fixed accounts of variable universal life insurance | 50-99 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	3	3
3% - 3.99% | Fixed accounts of variable universal life insurance | 100-150 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	11	6
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	$ 29	$ 30
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	$ 29	$ 30
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	$ 5,120	$ 5,280
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	$ 5,097	$ 5,273
4% - 5.00% | Total | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	23	7
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	$ 1,436	$ 1,514
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	$ 1,436	$ 1,514
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	$ 2,333	$ 2,339
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	$ 2,333	$ 2,339
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	$ 485	$ 519
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	$ 482	$ 518
4% - 5.00% | Universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	3	1
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	$ 592	$ 613
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	$ 572	$ 607
4% - 5.00% | Fixed accounts of variable universal life insurance | 1-49 bps above Guaranteed Minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	20	6
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	$ 274	$ 295
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	$ 274	$ 295
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-types1: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-types1: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-types1: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-types1: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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