v3.26.1
Investments (Recurring Related Party Investments Transactions) (Details)
$ in Millions
3 Months Ended
Mar. 31, 2026
USD ($)
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
Related Party Transaction [Line Items]      
Other invested assets - VIE $ 16,832   $ 15,086
Minimum      
Related Party Transaction [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 1.61%    
Maximum      
Related Party Transaction [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 2.16%    
Metlife Inc      
Related Party Transaction [Line Items]      
Other invested assets - VIE $ 1,001   1,016
Related Party Transaction, Other Revenues from Transactions with Related Party 5 $ 5  
Metropolitan General Insurance Company      
Related Party Transaction [Line Items]      
Other invested assets - VIE $ 152   152
InterestRateStatedPercentageDebtInstrumentExchanged 0.0647    
Affiliated Entity      
Related Party Transaction [Line Items]      
Assets Transferred To Affiliates, Estimated Fair Value $ 285 0  
Transfers of Financial Assets Accounted for as Sale, Amortized Cost of Assets Obtained as Proceeds 311 1  
Securitization or Asset-backed Financing Arrangement, Financial Asset for which Transfer is Accounted as Sale, Gain (Loss) on Sale (26) 0  
Assets Transferred From Affiliates Estimated Fair Value 1,162 $ 50  
Other invested assets - VIE 3,554   3,644
Metropolitan Tower Life Insurance Company      
Related Party Transaction [Line Items]      
Other invested assets - VIE $ 2,401   $ 2,476