v3.25.2
Fair Value of Assets and Liabilities (Changes in Level 3 Assets and Liabilities) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Unrealized gains (losses) for assets/liabilities still held:          
Market risk benefit assets $ 2,188 $ 2,233 $ 2,188 $ 2,233 $ 2,331
Market risk benefit liabilities 4,859 4,592 4,859 4,592 4,455
Fair Value, Measurements, Recurring          
Unrealized gains (losses) for assets/liabilities still held:          
Market risk benefit assets 2,188   2,188   2,331
Market risk benefit liabilities 4,859   4,859   $ 4,455
Equity securities          
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period 733 506 518 512  
Purchases 62 54 216 75  
Sales (35) (12) (58) (16)  
Issuances 0 0 0 0  
Settlements (1) (1) (1) (5)  
Other 0 (3) 0 6  
Transfers into Level 3 1 1 120 1  
Transfers out of Level 3 (163) (1) (181) (10)  
Fair Value, end of period 601 556 601 556  
Total gains (losses) (realized/unrealized):          
Included in earnings 4 12 (13) (7)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 4 12 (19) (10)  
Equity securities | Realized investment gains (losses), net          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Equity securities | Other income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 4 12 (13) (7)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 4 12 (19) (10)  
Equity securities | Interest credited to policyholders’ account balances          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Equity securities | Included in other comprehensive income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Equity securities | Net investment income          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Commercial mortgage and other loans          
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period 263 0 233 0  
Purchases 0 0 0 0  
Sales 0 0 0 0  
Issuances 0 0 30 0  
Settlements 0 0 0 0  
Other 0 0 0 0  
Transfers into Level 3 0 0 0 0  
Transfers out of Level 3 0 0 0 0  
Fair Value, end of period 263 0 263 0  
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Commercial mortgage and other loans | Realized investment gains (losses), net          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Commercial mortgage and other loans | Other income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Commercial mortgage and other loans | Interest credited to policyholders’ account balances          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Commercial mortgage and other loans | Included in other comprehensive income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Commercial mortgage and other loans | Net investment income          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Other invested assets          
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period 965 865 953 846  
Purchases 44 93 58 122  
Sales (30) 0 (31) (2)  
Issuances 0 0 0 0  
Settlements 0 0 0 0  
Other 1 19 1 19  
Transfers into Level 3 0 0 0 0  
Transfers out of Level 3 1 0 1 0  
Fair Value, end of period 978 938 978 938  
Total gains (losses) (realized/unrealized):          
Included in earnings (3) (39) (4) (47)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings (3) (40) (3) (47)  
Other invested assets | Realized investment gains (losses), net          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 1 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings (1) 0 0 0  
Other invested assets | Other income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings (2) (40) (3) (47)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings (2) (40) (3) (47)  
Other invested assets | Interest credited to policyholders’ account balances          
Total gains (losses) (realized/unrealized):          
Included in earnings (1) 0 (1) 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Other invested assets | Included in other comprehensive income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Other invested assets | Net investment income          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Short-term investments          
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period 462 32 461 29  
Purchases 15 2 23 7  
Sales (452) 0 (455) 0  
Issuances 0 0 0 0  
Settlements (7) (6) (11) (6)  
Other (2) (22) (2) (22)  
Transfers into Level 3 1 0 1 0  
Transfers out of Level 3 1 0 1 0  
Fair Value, end of period 18 9 18 9  
Total gains (losses) (realized/unrealized):          
Included in earnings 0 3 0 1  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 2 0 0  
Short-term investments | Realized investment gains (losses), net          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 3 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 2 0 0  
Short-term investments | Other income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Short-term investments | Interest credited to policyholders’ account balances          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Short-term investments | Included in other comprehensive income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Short-term investments | Net investment income          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 1  
Cash equivalents          
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period 1 0 0 4  
Purchases 1 4 2 4  
Sales 0 0 0 0  
Issuances 0 0 0 0  
Settlements (1) 0 (1) 0  
Other 0 0 0 (4)  
Transfers into Level 3 0 0 0 0  
Transfers out of Level 3 0 0 0 0  
Fair Value, end of period 1 4 1 4  
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Cash equivalents | Realized investment gains (losses), net          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Cash equivalents | Other income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Cash equivalents | Interest credited to policyholders’ account balances          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Cash equivalents | Included in other comprehensive income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Cash equivalents | Net investment income          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Reinsurance recoverables and deposit receivables          
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period 381 303 613 224  
Purchases (2) 59 21 114  
Sales 0 0 0 0  
Issuances 0 0 0 0  
Settlements (16) (13) (34) (26)  
Other (1) 0 (234) 0  
Transfers into Level 3 0 0 0 0  
Transfers out of Level 3 0 0 0 0  
Fair Value, end of period 367 363 367 363  
Total gains (losses) (realized/unrealized):          
Included in earnings 5 14 1 51  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings (12) 1 (33) 25  
Reinsurance recoverables and deposit receivables | Realized investment gains (losses), net          
Total gains (losses) (realized/unrealized):          
Included in earnings 5 14 1 51  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings (12) 1 (33) 25  
Reinsurance recoverables and deposit receivables | Other income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Reinsurance recoverables and deposit receivables | Interest credited to policyholders’ account balances          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Reinsurance recoverables and deposit receivables | Included in other comprehensive income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Reinsurance recoverables and deposit receivables | Net investment income          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Other assets          
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period 0 19 0 11  
Purchases 0 0 0 8  
Sales 0 0 0 0  
Issuances 0 0 0 0  
Settlements 0 0 0 0  
Other 0 (19) 0 (19)  
Transfers into Level 3 0 0 0 0  
Transfers out of Level 3 0 0 0 0  
Fair Value, end of period 0 0 0 0  
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Other assets | Realized investment gains (losses), net          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Other assets | Other income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Other assets | Interest credited to policyholders’ account balances          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Other assets | Included in other comprehensive income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Other assets | Net investment income          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Separate accounts assets          
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period 253 338 232 1,094  
Purchases 25 80 85 136  
Sales (3) (61) (37) (824)  
Issuances 0 0 0 0  
Settlements (30) (2) (31) (4)  
Other 0 0 0 0  
Transfers into Level 3 1 0 5 0  
Transfers out of Level 3 (10) (5) (10) (6)  
Fair Value, end of period 252 342 252 342  
Total gains (losses) (realized/unrealized):          
Included in earnings 16 (8) 8 (54)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 15 (7) 5 (15)  
Separate accounts assets | Realized investment gains (losses), net          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Separate accounts assets | Other income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Separate accounts assets | Interest credited to policyholders’ account balances          
Total gains (losses) (realized/unrealized):          
Included in earnings 16 (8) 8 (54)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 15 (7) 5 (15)  
Separate accounts assets | Included in other comprehensive income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Separate accounts assets | Net investment income          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Policyholders’ account balances          
Fair Value, Assets And Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period (11,938) (9,864) (12,746) (7,752)  
Purchases 0 0 0 0  
Sales 0 0 0 0  
Issuances (371) (469) (996) (1,087)  
Settlements 0 0 0 0  
Other (2) 1 (4) 2  
Transfers Into Level 3 0 0 0 0  
Transfers out of Level 3 0 0 0 0  
Fair Value, end of period (15,289) (10,213) (15,289) (10,213)  
Total gains (losses) (realized/unrealized):          
Included in earnings (2,978) 119 (1,543) (1,376)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings (169) 965 238 749  
Policyholders’ account balances | Realized investment gains (losses), net          
Total gains (losses) (realized/unrealized):          
Included in earnings (2,978) 119 (1,543) (1,376)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings (169) 965 238 749  
Policyholders’ account balances | Other income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Policyholders’ account balances | Interest credited to policyholders’ account balances          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Policyholders’ account balances | Included in other comprehensive income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Policyholders’ account balances | Net investment income          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Other liabilities          
Fair Value, Assets And Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period (13) (1) (1) (1)  
Purchases 0 0 0 0  
Sales 0 0 0 0  
Issuances 0 0 0 0  
Settlements 0 0 0 0  
Other 0 0 0 0  
Transfers Into Level 3 0 0 0 0  
Transfers out of Level 3 0 0 0 0  
Fair Value, end of period (15) (1) (15) (1)  
Total gains (losses) (realized/unrealized):          
Included in earnings (2) 0 (14) 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings (2) 0 (14) 0  
Other liabilities | Realized investment gains (losses), net          
Total gains (losses) (realized/unrealized):          
Included in earnings (2) 0 (14) 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings (2) 0 (14) 0  
Other liabilities | Other income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Other liabilities | Interest credited to policyholders’ account balances          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Other liabilities | Included in other comprehensive income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Other liabilities | Net investment income          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Notes issued by consolidated VIEs          
Fair Value, Assets And Liabilities Measured On Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period (67) (405) (60) (778)  
Purchases 0 0 0 0  
Sales 0 0 0 0  
Issuances (124) (17) (131) (27)  
Settlements 0 0 0 0  
Other (4) 0 (4) 391  
Transfers Into Level 3 0 0 0 0  
Transfers out of Level 3 0 0 0 0  
Fair Value, end of period (195) (422) (195) (422)  
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 (8)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 (8)  
Notes issued by consolidated VIEs | Realized investment gains (losses), net          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Notes issued by consolidated VIEs | Other income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 (8)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 (8)  
Notes issued by consolidated VIEs | Interest credited to policyholders’ account balances          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Notes issued by consolidated VIEs | Included in other comprehensive income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Notes issued by consolidated VIEs | Net investment income          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Fixed maturities, available-for-sale | Fixed maturities | Realized investment gains (losses), net          
Total gains (losses) (realized/unrealized):          
Included in earnings (12) (30) (31) (63)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings (11) (31) (33) (59)  
Fixed maturities, available-for-sale | Fixed maturities | Other income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Fixed maturities, available-for-sale | Fixed maturities | Interest credited to policyholders’ account balances          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Fixed maturities, available-for-sale | Fixed maturities | Included in other comprehensive income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 46 (33) 18 (49)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 43 (30) 13 (54)  
Fixed maturities, available-for-sale | Fixed maturities | Net investment income          
Total gains (losses) (realized/unrealized):          
Included in earnings (1) 10 (4) 15  
Fixed maturities, available-for-sale | Fixed maturities | U.S. states          
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period 5 6 6 7  
Purchases (1) 0 (1) 0  
Sales 0 0 0 0  
Issuances 0 0 0 0  
Settlements 1 0 0 0  
Other 0 0 0 0  
Transfers into Level 3 0 0 0 0  
Transfers out of Level 3 0 0 0 0  
Fair Value, end of period 5 6 5 6  
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 (1)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 (1)  
Fixed maturities, available-for-sale | Fixed maturities | Foreign government securities          
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period 5 7 7 8  
Purchases 0 0 0 0  
Sales 0 0 0 0  
Issuances 0 0 0 0  
Settlements 0 0 (2) (1)  
Other 0 0 0 0  
Transfers into Level 3 0 0 0 0  
Transfers out of Level 3 0 0 0 0  
Fair Value, end of period 5 7 5 7  
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Fixed maturities, available-for-sale | Fixed maturities | Corporate securities          
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period 6,279 4,965 5,831 4,806  
Purchases 839 417 1,707 819  
Sales (121) (28) (471) (33)  
Issuances 0 0 0 0  
Settlements (408) (221) (602) (508)  
Other 11 (141) (30) (154)  
Transfers into Level 3 18 54 252 162  
Transfers out of Level 3 0 0 (1) 0  
Fair Value, end of period 6,660 5,003 6,660 5,003  
Total gains (losses) (realized/unrealized):          
Included in earnings 42 (43) (26) (89)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 38 (51) (32) (101)  
Fixed maturities, available-for-sale | Fixed maturities | Structured securities          
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period 3,217 2,612 2,333 1,297  
Purchases 1,502 327 2,328 1,592  
Sales (446) (1) (769) (1)  
Issuances 0 0 0 0  
Settlements (168) (63) (233) (75)  
Other 191 (492) (171) (493)  
Transfers into Level 3 199 (1) 1,064 59  
Transfers out of Level 3 (158) (320) (233) (320)  
Fair Value, end of period 4,328 2,052 4,328 2,052  
Total gains (losses) (realized/unrealized):          
Included in earnings (9) (10) 9 (7)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings (6) (11) 12 (11)  
Fixed maturities, trading | Fixed maturities          
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]          
Fair Value, beginning of period 2,138 1,330 1,986 429  
Purchases 289 330 712 894  
Sales (10) 0 (271) (22)  
Issuances 0 0 0 0  
Settlements (86) (70) (338) (116)  
Other (183) 0 183 (1)  
Transfers into Level 3 0 (2) 3 402  
Transfers out of Level 3 (44) (61) (150) (61)  
Fair Value, end of period 2,090 1,520 2,090 1,520  
Total gains (losses) (realized/unrealized):          
Included in earnings (14) (7) (35) (5)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings (31) (6) (39) 1  
Fixed maturities, trading | Fixed maturities | Realized investment gains (losses), net          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Fixed maturities, trading | Fixed maturities | Other income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings (28) (7) (34) (6)  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings (31) (6) (39) 1  
Fixed maturities, trading | Fixed maturities | Interest credited to policyholders’ account balances          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Fixed maturities, trading | Fixed maturities | Included in other comprehensive income (loss)          
Total gains (losses) (realized/unrealized):          
Included in earnings 0 0 0 0  
Unrealized gains (losses) for assets/liabilities still held:          
Included in earnings 0 0 0 0  
Fixed maturities, trading | Fixed maturities | Net investment income          
Total gains (losses) (realized/unrealized):          
Included in earnings $ 14 $ 0 $ (1) $ 1