v3.25.2
Investments - Loans by Loan to Value (Details) - USD ($)
$ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Schedule of Loans by Loan to Value Ratio [Line Items]    
Targeted maximum amount of mortgage loans lended, percent of estimated fair value of underlying real estate 75.00%  
One America    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss $ 800  
0% - 50%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Loans Receivable, Loan to Value Ratio, Minimum 0.00% 0.00%
Loans Receivable, Loan to Value Ratio, Maximum 50.00% 50.00%
50% - 60%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Loans Receivable, Loan to Value Ratio, Minimum 50.00% 50.00%
Loans Receivable, Loan to Value Ratio, Maximum 60.00% 60.00%
60% - 70%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Loans Receivable, Loan to Value Ratio, Minimum 60.00% 60.00%
Loans Receivable, Loan to Value Ratio, Maximum 70.00% 70.00%
70% - 80%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Loans Receivable, Loan to Value Ratio, Minimum 70.00% 70.00%
Loans Receivable, Loan to Value Ratio, Maximum 80.00% 80.00%
>80% and above    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Loans Receivable, Loan to Value Ratio, Minimum 80.00% 80.00%
Year of Origination 2025 [Member] | 0% - 50%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss $ 126  
Year of Origination 2025 [Member] | 50% - 60%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 213  
Year of Origination 2025 [Member] | 60% - 70%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 28  
Year of Origination 2025 [Member] | 70% - 80%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0  
Year of Origination 2025 [Member] | >80% and above    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0  
Year of Origination 2025 [Member] | Total Segment    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 367  
Year of Origination 2024 | 0% - 50%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 125 $ 111
Year of Origination 2024 | 50% - 60%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 126 107
Year of Origination 2024 | 60% - 70%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 11 11
Year of Origination 2024 | 70% - 80%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0
Year of Origination 2024 | >80% and above    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0
Year of Origination 2024 | Total Segment    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 262 229
Year of Origination 2023 | 0% - 50%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 73 76
Year of Origination 2023 | 50% - 60%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 142 151
Year of Origination 2023 | 60% - 70%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 29
Year of Origination 2023 | 70% - 80%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0
Year of Origination 2023 | >80% and above    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0
Year of Origination 2023 | Total Segment    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 215 256
Year of Origination 2022 | 0% - 50%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 230 201
Year of Origination 2022 | 50% - 60%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 244 240
Year of Origination 2022 | 60% - 70%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 97 94
Year of Origination 2022 | 70% - 80%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0
Year of Origination 2022 | >80% and above    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0
Year of Origination 2022 | Total Segment    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 571 535
Year of Origination 2021 | 0% - 50%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 202 189
Year of Origination 2021 | 50% - 60%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 181 148
Year of Origination 2021 | 60% - 70%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 62 93
Year of Origination 2021 | 70% - 80%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0
Year of Origination 2021 | >80% and above    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0
Year of Origination 2021 | Total Segment    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 445 430
Year of Origination 2020 | 0% - 50%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 2,475 149
Year of Origination 2020 | 50% - 60%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 167 63
Year of Origination 2020 | 60% - 70%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0
Year of Origination 2020 | 70% - 80%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0
Year of Origination 2020 | >80% and above    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 2 0
Year of Origination 2020 | Total Segment    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 2,644 212
Year of Origination 2019 | 0% - 50%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss   1,827
Year of Origination 2019 | 50% - 60%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss   126
Year of Origination 2019 | 60% - 70%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss   1
Year of Origination 2019 | 70% - 80%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss   0
Year of Origination 2019 | >80% and above    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss   16
Year of Origination 2019 | Total Segment    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss   1,970
Total Segment | 0% - 50%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 3,231 2,553
Total Segment | 50% - 60%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 1,073 835
Total Segment | 60% - 70%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 198 228
Total Segment | 70% - 80%    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 0 0
Total Segment | >80% and above    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss 2 16
Total Segment | Total Segment    
Schedule of Loans by Loan to Value Ratio [Line Items]    
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss $ 4,504 $ 3,632