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POLICYHOLDER ACCOUNT BALANCES - Guaranteed Minimum Interest Rates (Details)
$ in Millions
Mar. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Mar. 31, 2022
UL      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 5,254 $ 5,308  
VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 3,842 3,921  
GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 959 981  
GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 258 271  
EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 2,575 2,652  
EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 11,704 11,794  
SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 35,620 33,373  
Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value 683 702  
At Guaranteed Minimum | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value 3,720 3,796  
At Guaranteed Minimum | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 3,690 3,864  
At Guaranteed Minimum | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 959 981  
At Guaranteed Minimum | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 258 271  
At Guaranteed Minimum | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 2,156 2,590  
At Guaranteed Minimum | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 6,868 7,069  
At Guaranteed Minimum | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 35,620 33,373  
At Guaranteed Minimum | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 260 266  
1 Basis Point - 50 Basis Points Above | Minimum      
Policyholder Account Balance [Line Items]      
At Guaranteed Minimum 0.0001   0.0001
1 Basis Point - 50 Basis Points Above | Maximum      
Policyholder Account Balance [Line Items]      
At Guaranteed Minimum 0.0050   0.0050
1 Basis Point - 50 Basis Points Above | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 777 854  
1 Basis Point - 50 Basis Points Above | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 144 51  
1 Basis Point - 50 Basis Points Above | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1 Basis Point - 50 Basis Points Above | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1 Basis Point - 50 Basis Points Above | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 20 0  
1 Basis Point - 50 Basis Points Above | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 401 28  
1 Basis Point - 50 Basis Points Above | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1 Basis Point - 50 Basis Points Above | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 292 302  
51 Basis Points - 150 Basis Points Above | Minimum      
Policyholder Account Balance [Line Items]      
At Guaranteed Minimum 0.0051   0.0051
51 Basis Points - 150 Basis Points Above | Maximum      
Policyholder Account Balance [Line Items]      
At Guaranteed Minimum 0.0150   0.0150
51 Basis Points - 150 Basis Points Above | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 644 610  
51 Basis Points - 150 Basis Points Above | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 6 5  
51 Basis Points - 150 Basis Points Above | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
51 Basis Points - 150 Basis Points Above | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
51 Basis Points - 150 Basis Points Above | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 161 62  
51 Basis Points - 150 Basis Points Above | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 1,259 1,585  
51 Basis Points - 150 Basis Points Above | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
51 Basis Points - 150 Basis Points Above | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 124 127  
Greater Than 150 Basis Points Above      
Policyholder Account Balance [Line Items]      
At Guaranteed Minimum 0.0150   0.0150
Greater Than 150 Basis Points Above | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 113 48  
Greater Than 150 Basis Points Above | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 2 1  
Greater Than 150 Basis Points Above | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater Than 150 Basis Points Above | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater Than 150 Basis Points Above | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 239 0  
Greater Than 150 Basis Points Above | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 3,176 3,112  
Greater Than 150 Basis Points Above | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater Than 150 Basis Points Above | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value 7 7  
0.00%-1.50% | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 5 $ 6  
0.00%-1.50% | UL | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 0.00% 0.00%  
0.00%-1.50% | UL | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.50% 1.50%  
0.00%-1.50% | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 31 $ 27  
0.00%-1.50% | VUL | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 0.00% 0.00%  
0.00%-1.50% | VUL | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.50% 1.50%  
0.00%-1.50% | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 387 $ 386  
0.00%-1.50% | GMxB Legacy | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 0.00% 0.00%  
0.00%-1.50% | GMxB Legacy | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.50% 1.50%  
0.00%-1.50% | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 244 $ 257  
0.00%-1.50% | GMxB Core | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 0.00% 0.00%  
0.00%-1.50% | GMxB Core | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.50% 1.50%  
0.00%-1.50% | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 329 $ 345  
0.00%-1.50% | EQUI-VEST Individual | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   0.00%  
0.00%-1.50% | EQUI-VEST Individual | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   1.50%  
0.00%-1.50% | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 3,653 $ 3,592  
0.00%-1.50% | EQUI-VEST Group | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   0.00%  
0.00%-1.50% | EQUI-VEST Group | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   1.50%  
0.00%-1.50% | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 29,799 $ 27,846  
0.00%-1.50% | SCS | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   0.00%  
0.00%-1.50% | SCS | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   1.50%  
0.00%-1.50% | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value 430 $ 445  
0.00%-1.50% | Momentum | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   0.00%  
0.00%-1.50% | Momentum | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   1.50%  
0.00%-1.50% | At Guaranteed Minimum | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 $ 0  
0.00%-1.50% | At Guaranteed Minimum | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 8 12  
0.00%-1.50% | At Guaranteed Minimum | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 387 386  
0.00%-1.50% | At Guaranteed Minimum | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 244 257  
0.00%-1.50% | At Guaranteed Minimum | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 35 345  
0.00%-1.50% | At Guaranteed Minimum | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 58 109  
0.00%-1.50% | At Guaranteed Minimum | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 29,799 27,846  
0.00%-1.50% | At Guaranteed Minimum | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value 13 15  
0.00%-1.50% | 1 Basis Point - 50 Basis Points Above | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
0.00%-1.50% | 1 Basis Point - 50 Basis Points Above | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 15 9  
0.00%-1.50% | 1 Basis Point - 50 Basis Points Above | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
0.00%-1.50% | 1 Basis Point - 50 Basis Points Above | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
0.00%-1.50% | 1 Basis Point - 50 Basis Points Above | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
0.00%-1.50% | 1 Basis Point - 50 Basis Points Above | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 57 5  
0.00%-1.50% | 1 Basis Point - 50 Basis Points Above | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
0.00%-1.50% | 1 Basis Point - 50 Basis Points Above | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value 291 301  
0.00%-1.50% | 51 Basis Points - 150 Basis Points Above | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value 4 5  
0.00%-1.50% | 51 Basis Points - 150 Basis Points Above | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 6 5  
0.00%-1.50% | 51 Basis Points - 150 Basis Points Above | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
0.00%-1.50% | 51 Basis Points - 150 Basis Points Above | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
0.00%-1.50% | 51 Basis Points - 150 Basis Points Above | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 55 0  
0.00%-1.50% | 51 Basis Points - 150 Basis Points Above | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 362 366  
0.00%-1.50% | 51 Basis Points - 150 Basis Points Above | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
0.00%-1.50% | 51 Basis Points - 150 Basis Points Above | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value 119 122  
0.00%-1.50% | Greater Than 150 Basis Points Above | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value 1 1  
0.00%-1.50% | Greater Than 150 Basis Points Above | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 2 1  
0.00%-1.50% | Greater Than 150 Basis Points Above | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
0.00%-1.50% | Greater Than 150 Basis Points Above | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
0.00%-1.50% | Greater Than 150 Basis Points Above | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 239 0  
0.00%-1.50% | Greater Than 150 Basis Points Above | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 3,176 3,112  
0.00%-1.50% | Greater Than 150 Basis Points Above | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
0.00%-1.50% | Greater Than 150 Basis Points Above | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 7 7  
0.00%-1.50% | EQUI-VEST Individual | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 0.00%    
0.00%-1.50% | EQUI-VEST Individual | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.50%    
0.00%-1.50% | EQUI-VEST Group | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 0.00%    
0.00%-1.50% | EQUI-VEST Group | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.50%    
0.00%-1.50% | SCS | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 0.00%    
0.00%-1.50% | SCS | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.50%    
0.00%-1.50% | Momentum | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 0.00%    
0.00%-1.50% | Momentum | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.50%    
1.51%-2.50% | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 1,034 $ 1,030  
1.51%-2.50% | UL | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.51% 1.51%  
1.51%-2.50% | UL | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50% 2.50%  
1.51%-2.50% | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 454 $ 453  
1.51%-2.50% | VUL | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.51% 1.51%  
1.51%-2.50% | VUL | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50% 2.50%  
1.51%-2.50% | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 539 $ 560  
1.51%-2.50% | GMxB Legacy | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.51% 1.51%  
1.51%-2.50% | GMxB Legacy | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50% 2.50%  
1.51%-2.50% | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 14 $ 14  
1.51%-2.50% | GMxB Core | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.51% 1.51%  
1.51%-2.50% | GMxB Core | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50% 2.50%  
1.51%-2.50% | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 46 $ 46  
1.51%-2.50% | EQUI-VEST Individual | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   1.51%  
1.51%-2.50% | EQUI-VEST Individual | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   2.50%  
1.51%-2.50% | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 910 $ 902  
1.51%-2.50% | EQUI-VEST Group | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   1.51%  
1.51%-2.50% | EQUI-VEST Group | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   2.50%  
1.51%-2.50% | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 5,821 $ 5,527  
1.51%-2.50% | SCS | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   1.51%  
1.51%-2.50% | SCS | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   2.50%  
1.51%-2.50% | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value 175 $ 179  
1.51%-2.50% | Momentum | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   1.51%  
1.51%-2.50% | Momentum | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   2.50%  
1.51%-2.50% | At Guaranteed Minimum | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value 155 $ 181  
1.51%-2.50% | At Guaranteed Minimum | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 325 411  
1.51%-2.50% | At Guaranteed Minimum | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 539 560  
1.51%-2.50% | At Guaranteed Minimum | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 14 14  
1.51%-2.50% | At Guaranteed Minimum | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 46  
1.51%-2.50% | At Guaranteed Minimum | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 11 11  
1.51%-2.50% | At Guaranteed Minimum | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 5,821 5,527  
1.51%-2.50% | At Guaranteed Minimum | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value 174 178  
1.51%-2.50% | 1 Basis Point - 50 Basis Points Above | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value 127 197  
1.51%-2.50% | 1 Basis Point - 50 Basis Points Above | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 129 42  
1.51%-2.50% | 1 Basis Point - 50 Basis Points Above | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | 1 Basis Point - 50 Basis Points Above | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | 1 Basis Point - 50 Basis Points Above | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | 1 Basis Point - 50 Basis Points Above | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 2 2  
1.51%-2.50% | 1 Basis Point - 50 Basis Points Above | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | 1 Basis Point - 50 Basis Points Above | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value 1 1  
1.51%-2.50% | 51 Basis Points - 150 Basis Points Above | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value 640 605  
1.51%-2.50% | 51 Basis Points - 150 Basis Points Above | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | 51 Basis Points - 150 Basis Points Above | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | 51 Basis Points - 150 Basis Points Above | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | 51 Basis Points - 150 Basis Points Above | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 46 0  
1.51%-2.50% | 51 Basis Points - 150 Basis Points Above | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 897 889  
1.51%-2.50% | 51 Basis Points - 150 Basis Points Above | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | 51 Basis Points - 150 Basis Points Above | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | Greater Than 150 Basis Points Above | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value 112 47  
1.51%-2.50% | Greater Than 150 Basis Points Above | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | Greater Than 150 Basis Points Above | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | Greater Than 150 Basis Points Above | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | Greater Than 150 Basis Points Above | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | Greater Than 150 Basis Points Above | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | Greater Than 150 Basis Points Above | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
1.51%-2.50% | Greater Than 150 Basis Points Above | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 0 $ 0  
1.51%-2.50% | EQUI-VEST Individual | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.51%    
1.51%-2.50% | EQUI-VEST Individual | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50%    
1.51%-2.50% | EQUI-VEST Group | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.51%    
1.51%-2.50% | EQUI-VEST Group | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50%    
1.51%-2.50% | SCS | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.51%    
1.51%-2.50% | SCS | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50%    
1.51%-2.50% | Momentum | Minimum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 1.51%    
1.51%-2.50% | Momentum | Maximum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50%    
Greater than 2.50% | UL      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50% 2.50%  
Policyholder account value $ 4,215 $ 4,272  
Greater than 2.50% | VUL      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50% 2.50%  
Policyholder account value $ 3,357 $ 3,441  
Greater than 2.50% | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50% 2.50%  
Policyholder account value $ 33 $ 35  
Greater than 2.50% | GMxB Core      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50% 2.50%  
Policyholder account value $ 0 $ 0  
Greater than 2.50% | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   2.50%  
Policyholder account value 2,200 $ 2,261  
Greater than 2.50% | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   2.50%  
Policyholder account value 7,141 $ 7,300  
Greater than 2.50% | SCS      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   2.50%  
Policyholder account value 0 $ 0  
Greater than 2.50% | Momentum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating   2.50%  
Policyholder account value 78 $ 78  
Greater than 2.50% | At Guaranteed Minimum | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value 3,565 3,615  
Greater than 2.50% | At Guaranteed Minimum | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 3,357 3,441  
Greater than 2.50% | At Guaranteed Minimum | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 33 35  
Greater than 2.50% | At Guaranteed Minimum | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | At Guaranteed Minimum | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 2,121 2,199  
Greater than 2.50% | At Guaranteed Minimum | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 6,799 6,949  
Greater than 2.50% | At Guaranteed Minimum | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | At Guaranteed Minimum | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value 73 73  
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value 650 657  
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 20 0  
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 342 21  
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | 1 Basis Point - 50 Basis Points Above | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 59 62  
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 330  
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | 51 Basis Points - 150 Basis Points Above | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value 5 5  
Greater than 2.50% | Greater Than 150 Basis Points Above | UL      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | Greater Than 150 Basis Points Above | VUL      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | Greater Than 150 Basis Points Above | GMxB Legacy      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | Greater Than 150 Basis Points Above | GMxB Core      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | Greater Than 150 Basis Points Above | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | Greater Than 150 Basis Points Above | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | Greater Than 150 Basis Points Above | SCS      
Policyholder Account Balance [Line Items]      
Policyholder account value 0 0  
Greater than 2.50% | Greater Than 150 Basis Points Above | Momentum      
Policyholder Account Balance [Line Items]      
Policyholder account value $ 0 $ 0  
Greater than 2.50% | EQUI-VEST Individual      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50%    
Greater than 2.50% | EQUI-VEST Group      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50%    
Greater than 2.50% | SCS      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50%    
Greater than 2.50% | Momentum      
Policyholder Account Balance [Line Items]      
Guaranteed minimum credit rating 2.50%