v3.26.1
Fair Value Measurements - Schedule of Fair Value and Carrying Value of Financial Instruments (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Assets    
Debt securities $ 51,948 $ 50,791
Equity securities 243 172
Mortgage loans 10,248 9,887
Policy loans 4,431 4,426
Freestanding derivative instruments 701 448
FHLBI capital stock 119 119
Cash and cash equivalents 5,539 5,704
Reinsurance recoverable on market risk benefits 18,926 19,518
Market risk benefit assets 6,701 7,867
Separate account assets 223,452 236,496
Liabilities    
Annuity reserves 40,683 39,059
Market risk benefit liabilities 3,971 3,754
Guaranteed investment contracts and funding agreements 11,141 11,021
Funds withheld payable under reinsurance treaties 14,511 14,960
Long-term debt 2,027 2,030
Securities lending payable 54 35
Repurchase agreements 451 1,001
Separate account liabilities 223,452 236,496
Freestanding derivatives    
Liabilities    
Freestanding derivative instruments 238 257
Variable Interest Entity, Primary Beneficiary    
Assets    
Equity securities 8 6
Liabilities    
Notes issued by consolidated VIEs 323 258
Carrying 
Value    
Assets    
Debt securities 51,948 50,791
Equity securities 243 172
Mortgage loans 10,444 10,211
Limited partnerships 2,896 2,836
Policy loans 4,431 4,426
Freestanding derivative instruments 701 448
FHLBI capital stock 119 119
Cash and cash equivalents 5,539 5,704
Reinsurance recoverable on market risk benefits 121 118
Market risk benefit assets 6,701 7,867
Separate account assets 223,452 236,496
Liabilities    
Annuity reserves 47,000 45,965
Market risk benefit liabilities 3,971 3,754
Guaranteed investment contracts and funding agreements 11,141 11,021
Funds withheld payable under reinsurance treaties 14,511 14,960
Long-term debt 2,027 2,030
Securities lending payable 54 35
Repurchase agreements 451 1,001
FHLB advances 0 0
Separate account liabilities 223,452 236,496
Carrying 
Value | Freestanding derivatives    
Liabilities    
Freestanding derivative instruments 238 257
Carrying 
Value | Variable Interest Entity, Primary Beneficiary    
Liabilities    
Notes issued by consolidated VIEs 2,543 2,578
Fair 
Value    
Assets    
Debt securities 51,948 50,791
Equity securities 243 172
Mortgage loans 10,188 9,948
Limited partnerships 2,896 2,836
Policy loans 4,431 4,426
Freestanding derivative instruments 701 448
FHLBI capital stock 119 119
Cash and cash equivalents 5,539 5,704
Reinsurance recoverable on market risk benefits 121 118
Market risk benefit assets 6,701 7,867
Separate account assets 223,452 236,496
Liabilities    
Annuity reserves 44,683 45,458
Market risk benefit liabilities 3,971 3,754
Guaranteed investment contracts and funding agreements 10,933 11,077
Funds withheld payable under reinsurance treaties 14,511 14,960
Long-term debt 1,831 1,877
Securities lending payable 54 35
Repurchase agreements 451 1,001
FHLB advances 0 0
Separate account liabilities 223,452 236,496
Fair 
Value | Freestanding derivatives    
Liabilities    
Freestanding derivative instruments 238 257
Fair 
Value | Variable Interest Entity, Primary Beneficiary    
Liabilities    
Notes issued by consolidated VIEs $ 2,543 $ 2,578