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POLICYHOLDER ACCOUNT BALANCES - Guaranteed Minimum Interest Rates (Details)
$ in Millions
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
1 Basis Point - 50 Basis Points Above | Minimum      
Policyholder Account Balance [Line Items]      
Basis points above guaranteed minimum crediting rate 0.0001   0.0001
1 Basis Point - 50 Basis Points Above | Maximum      
Policyholder Account Balance [Line Items]      
Basis points above guaranteed minimum crediting rate 0.0050   0.0050
51 Basis Points - 150 Basis Points Above | Minimum      
Policyholder Account Balance [Line Items]      
Basis points above guaranteed minimum crediting rate 0.0051   0.0051
51 Basis Points - 150 Basis Points Above | Maximum      
Policyholder Account Balance [Line Items]      
Basis points above guaranteed minimum crediting rate 0.0150   0.0150
Greater Than 150 Basis Points Above | Minimum      
Policyholder Account Balance [Line Items]      
Basis points above guaranteed minimum crediting rate 0.0150   0.0150
Protection Solutions | Universal Life      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 5,035 $ 5,170  
Protection Solutions | Universal Life | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 6 $ 6  
Protection Solutions | Universal Life | 0.00% - 1.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 0.00% 0.00%  
Protection Solutions | Universal Life | 0.00% - 1.50% | Maximum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 1.50% 1.50%  
Protection Solutions | Universal Life | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 1,029 $ 1,022  
Protection Solutions | Universal Life | 1.51% - 2.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 1.51% 1.51%  
Protection Solutions | Universal Life | 1.51% - 2.50% | Maximum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 2.50% 2.50%  
Protection Solutions | Universal Life | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 4,000 $ 4,142  
Protection Solutions | Universal Life | Greater than 2.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 2.50% 2.50%  
Protection Solutions | Universal Life | At Guaranteed Minimum      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 3,402 $ 3,576  
Protection Solutions | Universal Life | At Guaranteed Minimum | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Protection Solutions | Universal Life | At Guaranteed Minimum | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 61  
Protection Solutions | Universal Life | At Guaranteed Minimum | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 3,402 3,515  
Protection Solutions | Universal Life | 1 Basis Point - 50 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 688 696  
Protection Solutions | Universal Life | 1 Basis Point - 50 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Protection Solutions | Universal Life | 1 Basis Point - 50 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 90 69  
Protection Solutions | Universal Life | 1 Basis Point - 50 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 598 627  
Protection Solutions | Universal Life | 51 Basis Points - 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 284 462  
Protection Solutions | Universal Life | 51 Basis Points - 150 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Protection Solutions | Universal Life | 51 Basis Points - 150 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 284 462  
Protection Solutions | Universal Life | 51 Basis Points - 150 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Protection Solutions | Universal Life | Greater Than 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 661 436  
Protection Solutions | Universal Life | Greater Than 150 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 6 6  
Protection Solutions | Universal Life | Greater Than 150 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 655 430  
Protection Solutions | Universal Life | Greater Than 150 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Protection Solutions | Variable Universal Life      
Policyholder Account Balance [Line Items]      
Policyholder account value 4,477 4,399  
Protection Solutions | Variable Universal Life | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 171 $ 111  
Protection Solutions | Variable Universal Life | 0.00% - 1.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 0.00% 0.00%  
Protection Solutions | Variable Universal Life | 0.00% - 1.50% | Maximum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 1.50% 1.50%  
Protection Solutions | Variable Universal Life | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 617 $ 558  
Protection Solutions | Variable Universal Life | 1.51% - 2.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 1.51% 1.51%  
Protection Solutions | Variable Universal Life | 1.51% - 2.50% | Maximum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 2.50% 2.50%  
Protection Solutions | Variable Universal Life | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 3,689 $ 3,730  
Protection Solutions | Variable Universal Life | Greater than 2.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 2.50% 2.50%  
Protection Solutions | Variable Universal Life | At Guaranteed Minimum      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 3,728 $ 3,763  
Protection Solutions | Variable Universal Life | At Guaranteed Minimum | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 24 16  
Protection Solutions | Variable Universal Life | At Guaranteed Minimum | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 37 35  
Protection Solutions | Variable Universal Life | At Guaranteed Minimum | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 3,667 3,712  
Protection Solutions | Variable Universal Life | 1 Basis Point - 50 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 372 528  
Protection Solutions | Variable Universal Life | 1 Basis Point - 50 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 13 33  
Protection Solutions | Variable Universal Life | 1 Basis Point - 50 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 357 495  
Protection Solutions | Variable Universal Life | 1 Basis Point - 50 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 2 0  
Protection Solutions | Variable Universal Life | 51 Basis Points - 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 337 94  
Protection Solutions | Variable Universal Life | 51 Basis Points - 150 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 94 53  
Protection Solutions | Variable Universal Life | 51 Basis Points - 150 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 223 28  
Protection Solutions | Variable Universal Life | 51 Basis Points - 150 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 20 13  
Protection Solutions | Variable Universal Life | Greater Than 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 40 14  
Protection Solutions | Variable Universal Life | Greater Than 150 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 40 9  
Protection Solutions | Variable Universal Life | Greater Than 150 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Protection Solutions | Variable Universal Life | Greater Than 150 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 5  
Legacy Segment | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 490 573  
Legacy Segment | GMxB Legacy | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 70 $ 91  
Legacy Segment | GMxB Legacy | 0.00% - 1.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 0.00% 0.00%  
Legacy Segment | GMxB Legacy | 0.00% - 1.50% | Maximum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 1.50% 1.50%  
Legacy Segment | GMxB Legacy | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 19 $ 21  
Legacy Segment | GMxB Legacy | 1.51% - 2.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 1.51% 1.51%  
Legacy Segment | GMxB Legacy | 1.51% - 2.50% | Maximum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 2.50% 2.50%  
Legacy Segment | GMxB Legacy | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 401 $ 461  
Legacy Segment | GMxB Legacy | Greater than 2.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 2.50% 2.50%  
Legacy Segment | GMxB Legacy | At Guaranteed Minimum      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 487 $ 557  
Legacy Segment | GMxB Legacy | At Guaranteed Minimum | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 67 75  
Legacy Segment | GMxB Legacy | At Guaranteed Minimum | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 19 21  
Legacy Segment | GMxB Legacy | At Guaranteed Minimum | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 401 461  
Legacy Segment | GMxB Legacy | 1 Basis Point - 50 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 3 16  
Legacy Segment | GMxB Legacy | 1 Basis Point - 50 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 3 16  
Legacy Segment | GMxB Legacy | 1 Basis Point - 50 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Legacy Segment | GMxB Legacy | 1 Basis Point - 50 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Legacy Segment | GMxB Legacy | 51 Basis Points - 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Legacy Segment | GMxB Legacy | 51 Basis Points - 150 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Legacy Segment | GMxB Legacy | 51 Basis Points - 150 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Legacy Segment | GMxB Legacy | 51 Basis Points - 150 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Legacy Segment | GMxB Legacy | Greater Than 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Legacy Segment | GMxB Legacy | Greater Than 150 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Legacy Segment | GMxB Legacy | Greater Than 150 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Legacy Segment | GMxB Legacy | Greater Than 150 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 235 273  
Individual Retirement | GMxB Core | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 171 $ 205  
Individual Retirement | GMxB Core | 0.00% - 1.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 0.00% 0.00%  
Individual Retirement | GMxB Core | 0.00% - 1.50% | Maximum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 1.50% 1.50%  
Individual Retirement | GMxB Core | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 12 $ 13  
Individual Retirement | GMxB Core | 1.51% - 2.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 1.51% 1.51%  
Individual Retirement | GMxB Core | 1.51% - 2.50% | Maximum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 2.50% 2.50%  
Individual Retirement | GMxB Core | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 52 $ 55  
Individual Retirement | GMxB Core | Greater than 2.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 2.50% 2.50%  
Individual Retirement | GMxB Core | At Guaranteed Minimum      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 75 $ 81  
Individual Retirement | GMxB Core | At Guaranteed Minimum | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 11 13  
Individual Retirement | GMxB Core | At Guaranteed Minimum | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 12 13  
Individual Retirement | GMxB Core | At Guaranteed Minimum | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 52 55  
Individual Retirement | GMxB Core | 1 Basis Point - 50 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 160 192  
Individual Retirement | GMxB Core | 1 Basis Point - 50 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 160 192  
Individual Retirement | GMxB Core | 1 Basis Point - 50 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | GMxB Core | 1 Basis Point - 50 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | GMxB Core | 51 Basis Points - 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | GMxB Core | 51 Basis Points - 150 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | GMxB Core | 51 Basis Points - 150 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | GMxB Core | 51 Basis Points - 150 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | GMxB Core | Greater Than 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | GMxB Core | Greater Than 150 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | GMxB Core | Greater Than 150 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | GMxB Core | Greater Than 150 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 2,036 2,321  
Individual Retirement | EQUI-VEST Individual | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 240 $ 267  
Individual Retirement | EQUI-VEST Individual | 0.00% - 1.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 0.00% 0.00%  
Individual Retirement | EQUI-VEST Individual | 0.00% - 1.50% | Maximum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 1.50% 1.50%  
Individual Retirement | EQUI-VEST Individual | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 38 $ 43  
Individual Retirement | EQUI-VEST Individual | 1.51% - 2.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 1.51% 1.51%  
Individual Retirement | EQUI-VEST Individual | 1.51% - 2.50% | Maximum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 2.50% 2.50%  
Individual Retirement | EQUI-VEST Individual | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 1,758 $ 2,011  
Individual Retirement | EQUI-VEST Individual | Greater than 2.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 2.50% 2.50%  
Individual Retirement | EQUI-VEST Individual | At Guaranteed Minimum      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 1,838 $ 2,103  
Individual Retirement | EQUI-VEST Individual | At Guaranteed Minimum | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 42 49  
Individual Retirement | EQUI-VEST Individual | At Guaranteed Minimum | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 38 43  
Individual Retirement | EQUI-VEST Individual | At Guaranteed Minimum | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 1,758 2,011  
Individual Retirement | EQUI-VEST Individual | 1 Basis Point - 50 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 198 218  
Individual Retirement | EQUI-VEST Individual | 1 Basis Point - 50 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 198 218  
Individual Retirement | EQUI-VEST Individual | 1 Basis Point - 50 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | EQUI-VEST Individual | 1 Basis Point - 50 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | EQUI-VEST Individual | 51 Basis Points - 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | EQUI-VEST Individual | 51 Basis Points - 150 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | EQUI-VEST Individual | 51 Basis Points - 150 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | EQUI-VEST Individual | 51 Basis Points - 150 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | EQUI-VEST Individual | Greater Than 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | EQUI-VEST Individual | Greater Than 150 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | EQUI-VEST Individual | Greater Than 150 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Individual Retirement | EQUI-VEST Individual | Greater Than 150 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Group Retirement | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 9,827 10,416  
Group Retirement | EQUI-VEST Group | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 3,402 $ 3,461  
Group Retirement | EQUI-VEST Group | 0.00% - 1.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 0.00% 0.00%  
Group Retirement | EQUI-VEST Group | 0.00% - 1.50% | Maximum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 1.50% 1.50%  
Group Retirement | EQUI-VEST Group | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 349 $ 345  
Group Retirement | EQUI-VEST Group | 1.51% - 2.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 1.51% 1.51%  
Group Retirement | EQUI-VEST Group | 1.51% - 2.50% | Maximum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 2.50% 2.50%  
Group Retirement | EQUI-VEST Group | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 6,076 $ 6,610  
Group Retirement | EQUI-VEST Group | Greater than 2.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 2.50% 2.50%  
Group Retirement | EQUI-VEST Group | At Guaranteed Minimum      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 7,145 $ 7,727  
Group Retirement | EQUI-VEST Group | At Guaranteed Minimum | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 720 772  
Group Retirement | EQUI-VEST Group | At Guaranteed Minimum | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 349 345  
Group Retirement | EQUI-VEST Group | At Guaranteed Minimum | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 6,076 6,610  
Group Retirement | EQUI-VEST Group | 1 Basis Point - 50 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 2,391 2,338  
Group Retirement | EQUI-VEST Group | 1 Basis Point - 50 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 2,391 2,338  
Group Retirement | EQUI-VEST Group | 1 Basis Point - 50 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Group Retirement | EQUI-VEST Group | 1 Basis Point - 50 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Group Retirement | EQUI-VEST Group | 51 Basis Points - 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 33 36  
Group Retirement | EQUI-VEST Group | 51 Basis Points - 150 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 33 36  
Group Retirement | EQUI-VEST Group | 51 Basis Points - 150 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Group Retirement | EQUI-VEST Group | 51 Basis Points - 150 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Group Retirement | EQUI-VEST Group | Greater Than 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 258 315  
Group Retirement | EQUI-VEST Group | Greater Than 150 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 258 315  
Group Retirement | EQUI-VEST Group | Greater Than 150 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Group Retirement | EQUI-VEST Group | Greater Than 150 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Group Retirement | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value 526 607  
Group Retirement | Momentum | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 357 $ 395  
Group Retirement | Momentum | 0.00% - 1.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 0.00% 0.00%  
Group Retirement | Momentum | 0.00% - 1.50% | Maximum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 1.50% 1.50%  
Group Retirement | Momentum | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 108 $ 139  
Group Retirement | Momentum | 1.51% - 2.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 1.51% 1.51%  
Group Retirement | Momentum | 1.51% - 2.50% | Maximum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 2.50% 2.50%  
Group Retirement | Momentum | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 61 $ 73  
Group Retirement | Momentum | Greater than 2.50% | Minimum      
Policyholder Account Balance [Line Items]      
Range of Guaranteed Minimum Crediting Rate 2.50% 2.50%  
Group Retirement | Momentum | At Guaranteed Minimum      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 135 $ 206  
Group Retirement | Momentum | At Guaranteed Minimum | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Group Retirement | Momentum | At Guaranteed Minimum | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 79 138  
Group Retirement | Momentum | At Guaranteed Minimum | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 56 68  
Group Retirement | Momentum | 1 Basis Point - 50 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 29 13  
Group Retirement | Momentum | 1 Basis Point - 50 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 12  
Group Retirement | Momentum | 1 Basis Point - 50 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 29 1  
Group Retirement | Momentum | 1 Basis Point - 50 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Group Retirement | Momentum | 51 Basis Points - 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 274 335  
Group Retirement | Momentum | 51 Basis Points - 150 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 269 330  
Group Retirement | Momentum | 51 Basis Points - 150 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Group Retirement | Momentum | 51 Basis Points - 150 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 5 5  
Group Retirement | Momentum | Greater Than 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
Policyholder account value 88 53  
Group Retirement | Momentum | Greater Than 150 Basis Points Above | 0.00% - 1.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 88 53  
Group Retirement | Momentum | Greater Than 150 Basis Points Above | 1.51% - 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Group Retirement | Momentum | Greater Than 150 Basis Points Above | Greater than 2.50%      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 0 $ 0