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POLICYHOLDER ACCOUNT BALANCES - Guaranteed Minimum Interest Rates (Details)
$ in Millions
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
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 $ 5,170 $ 5,308
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]    
Guaranteed minimum credit rating 0.00% 0.00%
Protection Solutions | Universal Life | 0.00% - 1.50% | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
Protection Solutions | Universal Life | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 1,022 $ 1,030
Protection Solutions | Universal Life | 1.51% - 2.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
Protection Solutions | Universal Life | 1.51% - 2.50% | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Protection Solutions | Universal Life | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 4,142 $ 4,272
Protection Solutions | Universal Life | Greater than2.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Protection Solutions | Universal Life | At Guaranteed Minimum    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 3,576 $ 3,796
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 61 181
Protection Solutions | Universal Life | At Guaranteed Minimum | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 3,515 3,615
Protection Solutions | Universal Life | 1 Basis Point - 50 Basis Points Above    
Policyholder Account Balance [Line Items]    
Policyholder account value 696 854
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 69 197
Protection Solutions | Universal Life | 1 Basis Point - 50 Basis Points Above | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 627 657
Protection Solutions | Universal Life | 51 Basis Points - 150 Basis Points Above    
Policyholder Account Balance [Line Items]    
Policyholder account value 462 610
Protection Solutions | Universal Life | 51 Basis Points - 150 Basis Points Above | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 5
Protection Solutions | Universal Life | 51 Basis Points - 150 Basis Points Above | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 462 605
Protection Solutions | Universal Life | 51 Basis Points - 150 Basis Points Above | Greater than2.50%    
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 436 48
Protection Solutions | Universal Life | Greater Than 150 Basis Points Above | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 6 1
Protection Solutions | Universal Life | Greater Than 150 Basis Points Above | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 430 47
Protection Solutions | Universal Life | Greater Than 150 Basis Points Above | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Protection Solutions | Variable Universal Life    
Policyholder Account Balance [Line Items]    
Policyholder account value 4,399 4,518
Protection Solutions | Variable Universal Life | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 111 $ 78
Protection Solutions | Variable Universal Life | 0.00% - 1.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 0.00% 0.00%
Protection Solutions | Variable Universal Life | 0.00% - 1.50% | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
Protection Solutions | Variable Universal Life | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 558 $ 538
Protection Solutions | Variable Universal Life | 1.51% - 2.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
Protection Solutions | Variable Universal Life | 1.51% - 2.50% | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Protection Solutions | Variable Universal Life | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 3,730 $ 3,902
Protection Solutions | Variable Universal Life | Greater than2.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Protection Solutions | Variable Universal Life | At Guaranteed Minimum    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 3,763 $ 4,415
Protection Solutions | Variable Universal Life | At Guaranteed Minimum | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 16 30
Protection Solutions | Variable Universal Life | At Guaranteed Minimum | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 35 485
Protection Solutions | Variable Universal Life | At Guaranteed Minimum | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 3,712 3,900
Protection Solutions | Variable Universal Life | 1 Basis Point - 50 Basis Points Above    
Policyholder Account Balance [Line Items]    
Policyholder account value 528 93
Protection Solutions | Variable Universal Life | 1 Basis Point - 50 Basis Points Above | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 33 40
Protection Solutions | Variable Universal Life | 1 Basis Point - 50 Basis Points Above | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 495 53
Protection Solutions | Variable Universal Life | 1 Basis Point - 50 Basis Points Above | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Protection Solutions | Variable Universal Life | 51 Basis Points - 150 Basis Points Above    
Policyholder Account Balance [Line Items]    
Policyholder account value 94 9
Protection Solutions | Variable Universal Life | 51 Basis Points - 150 Basis Points Above | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 53 7
Protection Solutions | Variable Universal Life | 51 Basis Points - 150 Basis Points Above | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 28 0
Protection Solutions | Variable Universal Life | 51 Basis Points - 150 Basis Points Above | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 13 2
Protection Solutions | Variable Universal Life | Greater Than 150 Basis Points Above    
Policyholder Account Balance [Line Items]    
Policyholder account value 14 1
Protection Solutions | Variable Universal Life | Greater Than 150 Basis Points Above | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 9 1
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 than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 5 0
Legacy Segment | GMxB Legacy    
Policyholder Account Balance [Line Items]    
Policyholder account value 573 981
Legacy Segment | GMxB Legacy | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 91 $ 386
Legacy Segment | GMxB Legacy | 0.00% - 1.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 0.00% 0.00%
Legacy Segment | GMxB Legacy | 0.00% - 1.50% | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
Legacy Segment | GMxB Legacy | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 21 $ 560
Legacy Segment | GMxB Legacy | 1.51% - 2.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
Legacy Segment | GMxB Legacy | 1.51% - 2.50% | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Legacy Segment | GMxB Legacy | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 461 $ 35
Legacy Segment | GMxB Legacy | Greater than2.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Legacy Segment | GMxB Legacy | At Guaranteed Minimum    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 557 $ 981
Legacy Segment | GMxB Legacy | At Guaranteed Minimum | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 75 386
Legacy Segment | GMxB Legacy | At Guaranteed Minimum | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 21 560
Legacy Segment | GMxB Legacy | At Guaranteed Minimum | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 461 35
Legacy Segment | GMxB Legacy | 1 Basis Point - 50 Basis Points Above    
Policyholder Account Balance [Line Items]    
Policyholder account value 16 0
Legacy Segment | GMxB Legacy | 1 Basis Point - 50 Basis Points Above | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 16 0
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 than2.50%    
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 than2.50%    
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 than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Individual Retirement | GMxB Core    
Policyholder Account Balance [Line Items]    
Policyholder account value 273 303
Individual Retirement | GMxB Core | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 205 $ 289
Individual Retirement | GMxB Core | 0.00% - 1.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 0.00% 0.00%
Individual Retirement | GMxB Core | 0.00% - 1.50% | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
Individual Retirement | GMxB Core | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 13 $ 14
Individual Retirement | GMxB Core | 1.51% - 2.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
Individual Retirement | GMxB Core | 1.51% - 2.50% | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Individual Retirement | GMxB Core | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 55 $ 0
Individual Retirement | GMxB Core | Greater than2.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Individual Retirement | GMxB Core | At Guaranteed Minimum    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 81 $ 303
Individual Retirement | GMxB Core | At Guaranteed Minimum | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 13 289
Individual Retirement | GMxB Core | At Guaranteed Minimum | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 13 14
Individual Retirement | GMxB Core | At Guaranteed Minimum | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 55 0
Individual Retirement | GMxB Core | 1 Basis Point - 50 Basis Points Above    
Policyholder Account Balance [Line Items]    
Policyholder account value 192 0
Individual Retirement | GMxB Core | 1 Basis Point - 50 Basis Points Above | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 192 0
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 than2.50%    
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 than2.50%    
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 than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Individual Retirement | EQUI-VEST Individual    
Policyholder Account Balance [Line Items]    
Policyholder account value 2,321 2,652
Individual Retirement | EQUI-VEST Individual | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 267 $ 345
Individual Retirement | EQUI-VEST Individual | 0.00% - 1.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 0.00% 0.00%
Individual Retirement | EQUI-VEST Individual | 0.00% - 1.50% | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
Individual Retirement | EQUI-VEST Individual | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 43 $ 46
Individual Retirement | EQUI-VEST Individual | 1.51% - 2.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
Individual Retirement | EQUI-VEST Individual | 1.51% - 2.50% | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Individual Retirement | EQUI-VEST Individual | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 2,011 $ 2,261
Individual Retirement | EQUI-VEST Individual | Greater than2.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Individual Retirement | EQUI-VEST Individual | At Guaranteed Minimum    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 2,103 $ 2,590
Individual Retirement | EQUI-VEST Individual | At Guaranteed Minimum | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 49 345
Individual Retirement | EQUI-VEST Individual | At Guaranteed Minimum | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 43 46
Individual Retirement | EQUI-VEST Individual | At Guaranteed Minimum | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 2,011 2,199
Individual Retirement | EQUI-VEST Individual | 1 Basis Point - 50 Basis Points Above    
Policyholder Account Balance [Line Items]    
Policyholder account value 218 0
Individual Retirement | EQUI-VEST Individual | 1 Basis Point - 50 Basis Points Above | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 218 0
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 than2.50%    
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 62
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 than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 62
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 than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Group Retirement | EQUI-VEST Group    
Policyholder Account Balance [Line Items]    
Policyholder account value 10,416 11,794
Group Retirement | EQUI-VEST Group | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 3,461 $ 3,592
Group Retirement | EQUI-VEST Group | 0.00% - 1.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 0.00% 0.00%
Group Retirement | EQUI-VEST Group | 0.00% - 1.50% | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
Group Retirement | EQUI-VEST Group | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 345 $ 902
Group Retirement | EQUI-VEST Group | 1.51% - 2.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
Group Retirement | EQUI-VEST Group | 1.51% - 2.50% | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Group Retirement | EQUI-VEST Group | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 6,610 $ 7,300
Group Retirement | EQUI-VEST Group | Greater than2.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Group Retirement | EQUI-VEST Group | At Guaranteed Minimum    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 7,727 $ 7,069
Group Retirement | EQUI-VEST Group | At Guaranteed Minimum | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 772 109
Group Retirement | EQUI-VEST Group | At Guaranteed Minimum | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 345 11
Group Retirement | EQUI-VEST Group | At Guaranteed Minimum | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 6,610 6,949
Group Retirement | EQUI-VEST Group | 1 Basis Point - 50 Basis Points Above    
Policyholder Account Balance [Line Items]    
Policyholder account value 2,338 28
Group Retirement | EQUI-VEST Group | 1 Basis Point - 50 Basis Points Above | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 2,338 5
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 2
Group Retirement | EQUI-VEST Group | 1 Basis Point - 50 Basis Points Above | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 21
Group Retirement | EQUI-VEST Group | 51 Basis Points - 150 Basis Points Above    
Policyholder Account Balance [Line Items]    
Policyholder account value 36 1,585
Group Retirement | EQUI-VEST Group | 51 Basis Points - 150 Basis Points Above | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 36 366
Group Retirement | EQUI-VEST Group | 51 Basis Points - 150 Basis Points Above | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 889
Group Retirement | EQUI-VEST Group | 51 Basis Points - 150 Basis Points Above | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 330
Group Retirement | EQUI-VEST Group | Greater Than 150 Basis Points Above    
Policyholder Account Balance [Line Items]    
Policyholder account value 315 3,112
Group Retirement | EQUI-VEST Group | Greater Than 150 Basis Points Above | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 315 3,112
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 than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 0
Group Retirement | Momentum    
Policyholder Account Balance [Line Items]    
Policyholder account value 607 702
Group Retirement | Momentum | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 395 $ 445
Group Retirement | Momentum | 0.00% - 1.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 0.00% 0.00%
Group Retirement | Momentum | 0.00% - 1.50% | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.50% 1.50%
Group Retirement | Momentum | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 139 $ 179
Group Retirement | Momentum | 1.51% - 2.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 1.51% 1.51%
Group Retirement | Momentum | 1.51% - 2.50% | Maximum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Group Retirement | Momentum | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 73 $ 78
Group Retirement | Momentum | Greater than2.50% | Minimum    
Policyholder Account Balance [Line Items]    
Guaranteed minimum credit rating 2.50% 2.50%
Group Retirement | Momentum | At Guaranteed Minimum    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 206 $ 266
Group Retirement | Momentum | At Guaranteed Minimum | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 0 15
Group Retirement | Momentum | At Guaranteed Minimum | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 138 178
Group Retirement | Momentum | At Guaranteed Minimum | Greater than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 68 73
Group Retirement | Momentum | 1 Basis Point - 50 Basis Points Above    
Policyholder Account Balance [Line Items]    
Policyholder account value 13 302
Group Retirement | Momentum | 1 Basis Point - 50 Basis Points Above | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 12 301
Group Retirement | Momentum | 1 Basis Point - 50 Basis Points Above | 1.51% - 2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 1 1
Group Retirement | Momentum | 1 Basis Point - 50 Basis Points Above | Greater than2.50%    
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 335 127
Group Retirement | Momentum | 51 Basis Points - 150 Basis Points Above | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 330 122
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 than2.50%    
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 53 7
Group Retirement | Momentum | Greater Than 150 Basis Points Above | 0.00% - 1.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value 53 7
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 than2.50%    
Policyholder Account Balance [Line Items]    
Policyholder account value $ 0 $ 0