v3.26.3
Contractholder Funds - Guaranteed Minimum Interest Rate (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Dec. 31, 2024
Excess of crediting rates over GMIR      
Total policyholder account value $ 32,959.0 $ 30,318.1  
Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Total policyholder account value 26,696.5 23,809.1  
Workplace savings and retirement solutions | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 14,120.8 12,925.3  
Policyholder account value without GMIR 3,127.7 2,882.8  
Total policyholder account value 17,248.5 15,808.1 $ 13,982.8
Workplace savings and retirement solutions | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 3,091.0 3,441.4  
Workplace savings and retirement solutions | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 11,012.3 9,464.4  
Workplace savings and retirement solutions | 3.01% - 4.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 7.2 7.6  
Workplace savings and retirement solutions | 4.01% and above | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 10.3 11.9  
Workplace savings and retirement solutions | At GMIR | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 131.3 214.5  
Workplace savings and retirement solutions | At GMIR | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 113.8 195.0  
Workplace savings and retirement solutions | At GMIR | 3.01% - 4.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 7.2 7.6  
Workplace savings and retirement solutions | At GMIR | 4.01% and above | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 10.3 11.9  
Workplace savings and retirement solutions | Up to 0.50% above GMIR | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 23.9 2,889.1  
Workplace savings and retirement solutions | Up to 0.50% above GMIR | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR   2,700.0  
Workplace savings and retirement solutions | Up to 0.50% above GMIR | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 23.9 189.1  
Workplace savings and retirement solutions | 0.51% to 1.00% above GMIR | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 2,538.4 673.2  
Workplace savings and retirement solutions | 0.51% to 1.00% above GMIR | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 2,426.9    
Workplace savings and retirement solutions | 0.51% to 1.00% above GMIR | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 111.5 673.2  
Workplace savings and retirement solutions | 1.01% to 2.00% above GMIR | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 3,345.9 4,677.2  
Workplace savings and retirement solutions | 1.01% to 2.00% above GMIR | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 664.1 741.4  
Workplace savings and retirement solutions | 1.01% to 2.00% above GMIR | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 2,681.8 3,935.8  
Workplace savings and retirement solutions | 2.01% or more above GMIR | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 8,081.3 4,471.3  
Workplace savings and retirement solutions | 2.01% or more above GMIR | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR $ 8,081.3 $ 4,471.3  
Workplace savings and retirement solutions | Minimum | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 1.01% 1.01%  
Workplace savings and retirement solutions | Minimum | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 2.01% 2.01%  
Workplace savings and retirement solutions | Minimum | 3.01% - 4.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 3.01% 3.01%  
Workplace savings and retirement solutions | Minimum | 4.01% and above | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 4.01% 4.01%  
Workplace savings and retirement solutions | Maximum | Up to 1.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 1.00% 1.00%  
Workplace savings and retirement solutions | Maximum | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 2.00% 2.00%  
Workplace savings and retirement solutions | Maximum | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 3.00% 3.00%  
Workplace savings and retirement solutions | Maximum | 3.01% - 4.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 4.00% 4.00%  
Individual variable annuities | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR $ 193.2 $ 215.9  
Policyholder account value without GMIR 6,039.7 4,057.1  
Total policyholder account value 6,232.9 4,273.0 1,906.7
Individual variable annuities | Up to 1.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 13.8 14.8  
Individual variable annuities | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 3.3 3.9  
Individual variable annuities | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 176.1 197.2  
Individual variable annuities | At GMIR | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 193.2 215.9  
Individual variable annuities | At GMIR | Up to 1.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 13.8 14.8  
Individual variable annuities | At GMIR | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 3.3 3.9  
Individual variable annuities | At GMIR | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR $ 176.1 $ 197.2  
Individual variable annuities | Minimum | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 1.01% 1.01%  
Individual variable annuities | Minimum | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 2.01% 2.01%  
Individual variable annuities | Minimum | 3.01% - 4.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 3.01% 3.01%  
Individual variable annuities | Minimum | 4.01% and above | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 4.01% 4.01%  
Individual variable annuities | Maximum | Up to 1.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 1.00% 1.00%  
Individual variable annuities | Maximum | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 2.00% 2.00%  
Individual variable annuities | Maximum | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 3.00% 3.00%  
Individual variable annuities | Maximum | 3.01% - 4.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 4.00% 4.00%  
Individual fixed deferred annuities | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR $ 3,096.1 $ 3,583.4  
Policyholder account value without GMIR 119.0 144.6  
Total policyholder account value 3,215.1 3,728.0 4,460.7
Individual fixed deferred annuities | Up to 1.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 1,015.1 1,248.7  
Individual fixed deferred annuities | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 68.9 99.5  
Individual fixed deferred annuities | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 1,886.0 2,101.8  
Individual fixed deferred annuities | 3.01% - 4.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 126.1 133.4  
Individual fixed deferred annuities | At GMIR | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 2,208.0 2,468.2  
Individual fixed deferred annuities | At GMIR | Up to 1.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 137.7 166.2  
Individual fixed deferred annuities | At GMIR | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 58.2 66.8  
Individual fixed deferred annuities | At GMIR | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 1,886.0 2,101.8  
Individual fixed deferred annuities | At GMIR | 3.01% - 4.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 126.1 133.4  
Individual fixed deferred annuities | Up to 0.50% above GMIR | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 7.7 9.1  
Individual fixed deferred annuities | Up to 0.50% above GMIR | Up to 1.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 7.7 8.9  
Individual fixed deferred annuities | Up to 0.50% above GMIR | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR   0.2  
Individual fixed deferred annuities | 0.51% to 1.00% above GMIR | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 11.1 28.8  
Individual fixed deferred annuities | 0.51% to 1.00% above GMIR | Up to 1.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 10.9 25.7  
Individual fixed deferred annuities | 0.51% to 1.00% above GMIR | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 0.2 3.1  
Individual fixed deferred annuities | 1.01% to 2.00% above GMIR | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 29.9 100.6  
Individual fixed deferred annuities | 1.01% to 2.00% above GMIR | Up to 1.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 27.6 78.8  
Individual fixed deferred annuities | 1.01% to 2.00% above GMIR | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 2.3 21.8  
Individual fixed deferred annuities | 2.01% or more above GMIR | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 839.4 976.7  
Individual fixed deferred annuities | 2.01% or more above GMIR | Up to 1.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 831.2 969.1  
Individual fixed deferred annuities | 2.01% or more above GMIR | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR $ 8.2 $ 7.6  
Individual fixed deferred annuities | Minimum | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 1.01% 1.01%  
Individual fixed deferred annuities | Minimum | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 2.01% 2.01%  
Individual fixed deferred annuities | Minimum | 3.01% - 4.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 3.01% 3.01%  
Individual fixed deferred annuities | Minimum | 4.01% and above | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 4.01% 4.01%  
Individual fixed deferred annuities | Maximum | Up to 1.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 1.00% 1.00%  
Individual fixed deferred annuities | Maximum | 1.01% - 2.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 2.00% 2.00%  
Individual fixed deferred annuities | Maximum | 2.01% - 3.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 3.00% 3.00%  
Individual fixed deferred annuities | Maximum | 3.01% - 4.00% | Retirement and Income Solutions      
Excess of crediting rates over GMIR      
GMIR 4.00% 4.00%  
Universal life | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR $ 5,427.8 $ 5,779.9  
Policyholder account value without GMIR 1,164.9 1,087.6  
Total policyholder account value 6,592.7 6,867.5 $ 6,953.7
Universal life | Up to 1.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 53.5 46.0  
Universal life | 1.01% - 2.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 1,678.9 1,663.6  
Universal life | 2.01% - 3.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 2,140.0 2,267.0  
Universal life | 3.01% - 4.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 1,506.4 1,752.9  
Universal life | 4.01% and above | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 49.0 50.4  
Universal life | At GMIR | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 2,278.6 2,375.9  
Universal life | At GMIR | 1.01% - 2.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 216.8 239.6  
Universal life | At GMIR | 2.01% - 3.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 724.6 566.6  
Universal life | At GMIR | 3.01% - 4.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 1,318.9 1,552.7  
Universal life | At GMIR | 4.01% and above | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 18.3 17.0  
Universal life | Up to 0.50% above GMIR | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 445.4 657.5  
Universal life | Up to 0.50% above GMIR | 2.01% - 3.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 348.1 592.3  
Universal life | Up to 0.50% above GMIR | 3.01% - 4.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 69.6 55.6  
Universal life | Up to 0.50% above GMIR | 4.01% and above | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 27.7 9.6  
Universal life | 0.51% to 1.00% above GMIR | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 1,086.6 1,100.4  
Universal life | 0.51% to 1.00% above GMIR | 1.01% - 2.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 332.2 344.3  
Universal life | 0.51% to 1.00% above GMIR | 2.01% - 3.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 661.1 711.4  
Universal life | 0.51% to 1.00% above GMIR | 3.01% - 4.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 91.6 28.6  
Universal life | 0.51% to 1.00% above GMIR | 4.01% and above | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 1.7 16.1  
Universal life | 1.01% to 2.00% above GMIR | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 1,087.0 1,148.7  
Universal life | 1.01% to 2.00% above GMIR | Up to 1.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 14.4 14.8  
Universal life | 1.01% to 2.00% above GMIR | 1.01% - 2.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 640.9 621.7  
Universal life | 1.01% to 2.00% above GMIR | 2.01% - 3.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 406.0 391.8  
Universal life | 1.01% to 2.00% above GMIR | 3.01% - 4.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 24.4 112.7  
Universal life | 1.01% to 2.00% above GMIR | 4.01% and above | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 1.3 7.7  
Universal life | 2.01% or more above GMIR | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 530.2 497.4  
Universal life | 2.01% or more above GMIR | Up to 1.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 39.1 31.2  
Universal life | 2.01% or more above GMIR | 1.01% - 2.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 489.0 458.0  
Universal life | 2.01% or more above GMIR | 2.01% - 3.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR 0.2 4.9  
Universal life | 2.01% or more above GMIR | 3.01% - 4.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
Policyholder account value with GMIR $ 1.9 $ 3.3  
Universal life | Minimum | 1.01% - 2.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
GMIR 1.01% 1.01%  
Universal life | Minimum | 2.01% - 3.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
GMIR 2.01% 2.01%  
Universal life | Minimum | 3.01% - 4.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
GMIR 3.01% 3.01%  
Universal life | Minimum | 4.01% and above | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
GMIR 4.01% 4.01%  
Universal life | Maximum | Up to 1.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
GMIR 1.00% 1.00%  
Universal life | Maximum | 1.01% - 2.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
GMIR 2.00% 2.00%  
Universal life | Maximum | 2.01% - 3.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
GMIR 3.00% 3.00%  
Universal life | Maximum | 3.01% - 4.00% | Benefits and Protection | Life Insurance      
Excess of crediting rates over GMIR      
GMIR 4.00% 4.00%