v3.26.1
Policyholder Account Balances - Range of Guaranteed Minimum Crediting Rate (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 104,711 $ 104,091    
Group Life        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 10,265 10,197 $ 10,492  
Group Life | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 5,455   $ 5,339  
Group Life | Equal to or greater than 0% but less than 2% | Minimum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 0.00%   0.00%  
Group Life | Equal to or greater than 0% but less than 2% | Maximum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 2.00%   2.00%  
Group Life | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 4,037   $ 4,347  
Group Life | Equal to or greater than 2% but less than 4% | Minimum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 2.00%   2.00%  
Group Life | Equal to or greater than 2% but less than 4% | Maximum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 4.00%   4.00%  
Group Life | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 741   $ 771  
Group Life | Equal to or greater than 4% | Minimum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 4.00%   4.00%  
Group Life | Products with either a fixed rate or no GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 32   $ 35  
Group Life | At GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 5,042   5,344  
Group Life | At GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 514   468  
Group Life | At GMCR | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 3,867   4,183  
Group Life | At GMCR | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 661   693  
Group Life | Greater than 0% but less than 0.50% above GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 121   129  
Group Life | Greater than 0% but less than 0.50% above GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 0   0  
Group Life | Greater than 0% but less than 0.50% above GMCR | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 97   102  
Group Life | Greater than 0% but less than 0.50% above GMCR | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 24   27  
Group Life | Equal to or greater than 0.50% but less than 1.50% above GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 720   783  
Group Life | Equal to or greater than 0.50% but less than 1.50% above GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 647   718  
Group Life | Equal to or greater than 0.50% but less than 1.50% above GMCR | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 73   62  
Group Life | Equal to or greater than 0.50% but less than 1.50% above GMCR | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 0   3  
Group Life | Equal to or greater than 1.50% above GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 4,350   4,201  
Group Life | Equal to or greater than 1.50% above GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 4,294   4,153  
Group Life | Equal to or greater than 1.50% above GMCR | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 0   0  
Group Life | Equal to or greater than 1.50% above GMCR | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 56   48  
Capital Markets Investment Products and Stable Value GICs        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 60,117 59,278 58,652 $ 57,799
Capital Markets Investment Products and Stable Value GICs | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 2,436   $ 2,376  
Capital Markets Investment Products and Stable Value GICs | Equal to or greater than 0% but less than 2% | Minimum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 0.00%   0.00%  
Capital Markets Investment Products and Stable Value GICs | Equal to or greater than 0% but less than 2% | Maximum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 2.00%   2.00%  
Capital Markets Investment Products and Stable Value GICs | Products with either a fixed rate or no GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 57,681   $ 56,276  
Capital Markets Investment Products and Stable Value GICs | At GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 0   0  
Capital Markets Investment Products and Stable Value GICs | At GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 0   0  
Capital Markets Investment Products and Stable Value GICs | Greater than 0% but less than 0.50% above GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 0   0  
Capital Markets Investment Products and Stable Value GICs | Greater than 0% but less than 0.50% above GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 0   0  
Capital Markets Investment Products and Stable Value GICs | Equal to or greater than 0.50% but less than 1.50% above GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 0   0  
Capital Markets Investment Products and Stable Value GICs | Equal to or greater than 0.50% but less than 1.50% above GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 0   0  
Capital Markets Investment Products and Stable Value GICs | Equal to or greater than 1.50% above GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 2,436   2,376  
Capital Markets Investment Products and Stable Value GICs | Equal to or greater than 1.50% above GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 2,436   2,376  
Annuities and Risk Solutions        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 15,764 15,671 14,876  
Annuities and Risk Solutions | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 2,649   $ 2,155  
Annuities and Risk Solutions | Equal to or greater than 0% but less than 2% | Minimum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 0.00%   0.00%  
Annuities and Risk Solutions | Equal to or greater than 0% but less than 2% | Maximum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 2.00%   2.00%  
Annuities and Risk Solutions | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 3,132   $ 3,427  
Annuities and Risk Solutions | Equal to or greater than 2% but less than 4% | Minimum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 2.00%   2.00%  
Annuities and Risk Solutions | Equal to or greater than 2% but less than 4% | Maximum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 4.00%   4.00%  
Annuities and Risk Solutions | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 3,669   $ 4,000  
Annuities and Risk Solutions | Equal to or greater than 4% | Minimum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 4.00%   4.00%  
Annuities and Risk Solutions | Products with either a fixed rate or no GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 6,314   $ 5,294  
Annuities and Risk Solutions | At GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 3,789   4,040  
Annuities and Risk Solutions | At GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 0   0  
Annuities and Risk Solutions | At GMCR | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 426   350  
Annuities and Risk Solutions | At GMCR | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 3,363   3,690  
Annuities and Risk Solutions | Greater than 0% but less than 0.50% above GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 2,202   2,518  
Annuities and Risk Solutions | Greater than 0% but less than 0.50% above GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 0   0  
Annuities and Risk Solutions | Greater than 0% but less than 0.50% above GMCR | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 2,202   2,507  
Annuities and Risk Solutions | Greater than 0% but less than 0.50% above GMCR | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 0   11  
Annuities and Risk Solutions | Equal to or greater than 0.50% but less than 1.50% above GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 761   822  
Annuities and Risk Solutions | Equal to or greater than 0.50% but less than 1.50% above GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 8   7  
Annuities and Risk Solutions | Equal to or greater than 0.50% but less than 1.50% above GMCR | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 453   522  
Annuities and Risk Solutions | Equal to or greater than 0.50% but less than 1.50% above GMCR | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 300   293  
Annuities and Risk Solutions | Equal to or greater than 1.50% above GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 2,698   2,202  
Annuities and Risk Solutions | Equal to or greater than 1.50% above GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 2,641   2,148  
Annuities and Risk Solutions | Equal to or greater than 1.50% above GMCR | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 51   48  
Annuities and Risk Solutions | Equal to or greater than 1.50% above GMCR | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 6   6  
Fixed Annuity        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 5,607 $ 5,788 6,187  
Fixed Annuity | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 684   $ 628  
Fixed Annuity | Equal to or greater than 0% but less than 2% | Minimum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 0.00%   0.00%  
Fixed Annuity | Equal to or greater than 0% but less than 2% | Maximum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 2.00%   2.00%  
Fixed Annuity | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 4,328   $ 4,901  
Fixed Annuity | Equal to or greater than 2% but less than 4% | Minimum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 2.00%   2.00%  
Fixed Annuity | Equal to or greater than 2% but less than 4% | Maximum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 4.00%   4.00%  
Fixed Annuity | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 284   $ 310  
Fixed Annuity | Equal to or greater than 4% | Minimum        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Range of Guaranteed Minimum Credit Rating 4.00%   4.00%  
Fixed Annuity | Products with either a fixed rate or no GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 311   $ 348  
Fixed Annuity | At GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 2,604   2,242  
Fixed Annuity | At GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 40   15  
Fixed Annuity | At GMCR | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 2,452   2,067  
Fixed Annuity | At GMCR | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 112   160  
Fixed Annuity | Greater than 0% but less than 0.50% above GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 1,714   2,678  
Fixed Annuity | Greater than 0% but less than 0.50% above GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 9   126  
Fixed Annuity | Greater than 0% but less than 0.50% above GMCR | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 1,533   2,404  
Fixed Annuity | Greater than 0% but less than 0.50% above GMCR | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 172   148  
Fixed Annuity | Equal to or greater than 0.50% but less than 1.50% above GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 649   758  
Fixed Annuity | Equal to or greater than 0.50% but less than 1.50% above GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 362   409  
Fixed Annuity | Equal to or greater than 0.50% but less than 1.50% above GMCR | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 287   347  
Fixed Annuity | Equal to or greater than 0.50% but less than 1.50% above GMCR | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 0   2  
Fixed Annuity | Equal to or greater than 1.50% above GMCR        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 329   161  
Fixed Annuity | Equal to or greater than 1.50% above GMCR | Equal to or greater than 0% but less than 2%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 273   78  
Fixed Annuity | Equal to or greater than 1.50% above GMCR | Equal to or greater than 2% but less than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance 56   83  
Fixed Annuity | Equal to or greater than 1.50% above GMCR | Equal to or greater than 4%        
Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Line Items]        
Policyholder account balance $ 0   $ 0