v3.25.3
Investments - Commercial Mortgage Loans, Including Disposal Groups (Details) - Real Estate Loan - Commercial Portfolio Segment
$ in Millions
 12 Months Ended
Dec. 31, 2024
USD ($)
Schedule of Investments [Line Items]  
Carrying value, after allowance for credit loss, including assets held for sale $ 1,351
Weighted Average  
Schedule of Investments [Line Items]  
Average Debt Service Coverage Ratio, including assets held for sale 1.70
Average Loan-to-Value Ratio, including assets held for sale 0.69
Below 60%  
Schedule of Investments [Line Items]  
Carrying value, after allowance for credit loss, including assets held for sale $ 547
Below 60% | Weighted Average  
Schedule of Investments [Line Items]  
Average Debt Service Coverage Ratio, including assets held for sale 2.07
60% to 79%  
Schedule of Investments [Line Items]  
Carrying value, after allowance for credit loss, including assets held for sale $ 595
60% to 79% | Weighted Average  
Schedule of Investments [Line Items]  
Average Debt Service Coverage Ratio, including assets held for sale 1.83
80% to 100%  
Schedule of Investments [Line Items]  
Carrying value, after allowance for credit loss, including assets held for sale $ 209
80% to 100% | Weighted Average  
Schedule of Investments [Line Items]  
Average Debt Service Coverage Ratio, including assets held for sale 0.51