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Assets Measured at Fair Value on Recurring Basis and Utilized Significant Unobservable (Level 3) Inputs to Determine Fair Value (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | $ 3,154 | $ 3,181 | $ 3,221 | $ 3,254
Total realized and unrealized gains (losses) included in net income, assets |  | $ 0 | $ 7 | $ 7 | $ 9
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] |  | Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest | Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest | Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest | Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Total realized and unrealized gains (losses), Included in OCI |  | $ (47) | $ (41) | $ (97) | $ 11
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration] |  | Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest | Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest | Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest | Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Purchases |  | $ 113 | $ 70 | $ 174 | $ 159
Sales |  | (25) | (36) | (25) | (65)
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (113) | (51) | (210) | (193)
Transfer into Level 3 | [1] | 22 | 41 | 41 | 54
Transfer out of Level 3 | [1] | (18) | (60) | (25) | (118)
Ending balance |  | 3,086 | 3,111 | 3,086 | 3,111
Total gains (losses) included in net income attributable to assets still held |  | $ 1 | $ 6 | $ 7 | $ 7
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] |  | Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest | Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest | Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest | Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Total gains (losses) included in OCI attributable to assets still held |  | $ (47) | $ (52) | $ (100) | $ (9)
Other invested assets |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 61 | 10 | 73 | 6
Total realized and unrealized gains (losses) included in net income, assets |  | 1 | 5 | 6 | 6
Total realized and unrealized gains (losses), Included in OCI |  | (20) | 0 | (30) | 0
Purchases |  | 4 | 9 | 8 | 12
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (4) | (2) | (15) | (2)
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 42 | 22 | 42 | 22
Total gains (losses) included in net income attributable to assets still held |  | 2 | 4 | 6 | 5
Total gains (losses) included in OCI attributable to assets still held |  | (15) | 0 | (28) | 0
Other invested assets | Short-term investments |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  |  | 0 | 7 | 0
Total realized and unrealized gains (losses) included in net income, assets |  |  | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  |  | 0 | 0 | 0
Purchases |  |  | 7 | 0 | 7
Sales |  |  | 0 | 0 | 0
Issuances |  |  | 0 | 0 | 0
Settlements |  |  | 0 | (7) | 0
Transfer into Level 3 | [1] |  | 0 | 0 | 0
Transfer out of Level 3 | [1] |  | 0 | 0 | 0
Ending balance |  | 0 | 7 | 0 | 7
Total gains (losses) included in net income attributable to assets still held |  |  | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  |  | 0 | 0 | 0
Other invested assets | Derivative assets |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 61 | 10 | 66 | 6
Total realized and unrealized gains (losses) included in net income, assets |  | 1 | 5 | 6 | 6
Total realized and unrealized gains (losses), Included in OCI |  | (20) | 0 | (30) | 0
Purchases |  | 4 | 2 | 8 | 5
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (4) | (2) | (8) | (2)
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 42 | 15 | 42 | 15
Total gains (losses) included in net income attributable to assets still held |  | 2 | 4 | 6 | 5
Total gains (losses) included in OCI attributable to assets still held |  | (15) | 0 | (28) | 0
Other invested assets | Derivative assets | Equity index options |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 20 | 10 | 15 | 6
Total realized and unrealized gains (losses) included in net income, assets |  | 1 | 5 | 6 | 6
Total realized and unrealized gains (losses), Included in OCI |  | 0 | 0 | 0 | 0
Purchases |  | 4 | 2 | 8 | 5
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (4) | (2) | (8) | (2)
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 21 | 15 | 21 | 15
Total gains (losses) included in net income attributable to assets still held |  | 2 | 4 | 6 | 5
Total gains (losses) included in OCI attributable to assets still held |  | 0 | 0 | 0 | 0
Other invested assets | Derivative assets | Forward bond purchase commitments |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 41 |  | 51 |
Total realized and unrealized gains (losses) included in net income, assets |  | 0 |  | 0 |
Total realized and unrealized gains (losses), Included in OCI |  | (20) |  | (30) |
Purchases |  | 0 |  | 0 |
Sales |  | 0 |  | 0 |
Issuances |  | 0 |  | 0 |
Settlements |  | 0 |  | 0 |
Transfer into Level 3 | [1] | 0 |  | 0 |
Transfer out of Level 3 | [1] | 0 |  | 0 |
Ending balance |  | 21 |  | 21 |
Total gains (losses) included in net income attributable to assets still held |  | 0 |  | 0 |
Total gains (losses) included in OCI attributable to assets still held |  | (15) |  | (28) |
Fixed maturity securities |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 3,042 | 3,116 | 3,096 | 3,190
Total realized and unrealized gains (losses) included in net income, assets |  | 2 | 3 | 5 | 6
Total realized and unrealized gains (losses), Included in OCI |  | (27) | (41) | (67) | 11
Purchases |  | 91 | 60 | 148 | 146
Sales |  | (17) | (32) | (17) | (60)
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (109) | (49) | (195) | (191)
Transfer into Level 3 | [1] | 22 | 41 | 41 | 54
Transfer out of Level 3 | [1] | (18) | (60) | (25) | (118)
Ending balance |  | 2,986 | 3,038 | 2,986 | 3,038
Total gains (losses) included in net income attributable to assets still held |  | 2 | 3 | 5 | 5
Total gains (losses) included in OCI attributable to assets still held |  | (32) | (52) | (72) | (9)
Fixed maturity securities | State and political subdivisions |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 65 | 59 | 60 | 55
Total realized and unrealized gains (losses) included in net income, assets |  | 1 | 1 | 2 | 2
Total realized and unrealized gains (losses), Included in OCI |  | (1) | 0 | 3 | 3
Purchases |  | 0 | 0 | 0 | 0
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | 0 | 0 | 0
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 65 | 60 | 65 | 60
Total gains (losses) included in net income attributable to assets still held |  | 1 | 1 | 2 | 2
Total gains (losses) included in OCI attributable to assets still held |  | (1) | 0 | 3 | 3
Fixed maturity securities | U.S. corporate |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 2,064 | 2,115 | 2,090 | 2,122
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | (16) | (21) | (48) | (1)
Purchases |  | 20 | 49 | 52 | 104
Sales |  | (17) | (31) | (17) | (41)
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (85) | (47) | (130) | (91)
Transfer into Level 3 | [1] | 22 | 11 | 41 | 24
Transfer out of Level 3 | [1] | (4) | (60) | (4) | (101)
Ending balance |  | 1,984 | 2,016 | 1,984 | 2,016
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | (22) | (32) | (54) | (12)
Fixed maturity securities | U.S. corporate | Utilities |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 867 | 859 | 881 | 842
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | (15) | (11) | (35) | 0
Purchases |  | 0 | 0 | 32 | 40
Sales |  | (13) | (31) | (13) | (40)
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | (10) | (26) | (10)
Transfer into Level 3 | [1] | 8 | 11 | 8 | 11
Transfer out of Level 3 | [1] | (4) | 0 | (4) | (25)
Ending balance |  | 843 | 818 | 843 | 818
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | (17) | (18) | (37) | (8)
Fixed maturity securities | U.S. corporate | Energy |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 60 | 115 | 60 | 116
Total realized and unrealized gains (losses) included in net income, assets |  | (1) | 0 | (1) | 0
Total realized and unrealized gains (losses), Included in OCI |  | 1 | 0 | 1 | 1
Purchases |  | 0 | 0 | 0 | 0
Sales |  | (4) | 0 | (4) | (1)
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (11) | (1) | (11) | (2)
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | (55) | 0 | (55)
Ending balance |  | 45 | 59 | 45 | 59
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | (1) | 0 | 1
Fixed maturity securities | U.S. corporate | Finance and insurance |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 730 | 697 | 717 | 687
Total realized and unrealized gains (losses) included in net income, assets |  | 1 | 0 | 1 | 0
Total realized and unrealized gains (losses), Included in OCI |  | 0 | (6) | (6) | (3)
Purchases |  | 0 | 48 | 0 | 63
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (65) | (30) | (65) | (35)
Transfer into Level 3 | [1] | 14 | 0 | 33 | 0
Transfer out of Level 3 | [1] | 0 | (5) | 0 | (8)
Ending balance |  | 680 | 704 | 680 | 704
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | (3) | (10) | (9) | (6)
Fixed maturity securities | U.S. corporate | Consumer-non-cyclical |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 64 | 69 | 69 | 82
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | (1) | (1) | (1) | 0
Purchases |  | 0 | 0 | 0 | 0
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | 0 | (5) | (14)
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 63 | 68 | 63 | 68
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | (1) | (1) | (1) | 0
Fixed maturity securities | U.S. corporate | Technology and communications |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 12 | 12 | 12 | 24
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | 0 | (1) | 0 | 0
Purchases |  | 0 | 0 | 0 | 0
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | 0 | 0 | 0
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | (13)
Ending balance |  | 12 | 11 | 12 | 11
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | 0 | 0 | 0
Fixed maturity securities | U.S. corporate | Industrial |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 15 | 22 | 23 | 22
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | 0 | 0 | 0 | 0
Purchases |  | 0 | 0 | 0 | 0
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | 0 | (8) | 0
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 15 | 22 | 15 | 22
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | 0 | 0 | 0
Fixed maturity securities | U.S. corporate | Capital goods |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 34 | 34 | 35 | 34
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | 0 | 0 | (1) | 0
Purchases |  | 20 | 0 | 20 | 0
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | 0 | 0 | 0
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 54 | 34 | 54 | 34
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | (1) | (1) | 0
Fixed maturity securities | U.S. corporate | Consumer-cyclical |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 118 | 127 | 122 | 113
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | 0 | (2) | (3) | 0
Purchases |  | 0 | 1 | 0 | 1
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (1) | (2) | (2) | (3)
Transfer into Level 3 | [1] | 0 | 0 | 0 | 13
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 117 | 124 | 117 | 124
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | (2) | (3) | 0
Fixed maturity securities | U.S. corporate | Transportation |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 21 | 24 | 22 | 43
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | 0 | (1) | 0 | 0
Purchases |  | 0 | 0 | 0 | 0
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (1) | 0 | (2) | (20)
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 20 | 23 | 20 | 23
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | 0 | 0 | 0
Fixed maturity securities | U.S. corporate | Other |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 143 | 156 | 149 | 159
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | (1) | 1 | (3) | 1
Purchases |  | 0 | 0 | 0 | 0
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (7) | (4) | (11) | (7)
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 135 | 153 | 135 | 153
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | (1) | 1 | (3) | 1
Fixed maturity securities | Non-U.S. corporate |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 791 | 827 | 830 | 885
Total realized and unrealized gains (losses) included in net income, assets |  | 1 | 2 | 3 | 4
Total realized and unrealized gains (losses), Included in OCI |  | (9) | (20) | (21) | 6
Purchases |  | 46 | 1 | 56 | 30
Sales |  | 0 | 0 | 0 | (18)
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (18) | (1) | (57) | (98)
Transfer into Level 3 | [1] | 0 | 30 | 0 | 30
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 811 | 839 | 811 | 839
Total gains (losses) included in net income attributable to assets still held |  | 1 | 2 | 3 | 3
Total gains (losses) included in OCI attributable to assets still held |  | (9) | (19) | (20) | (1)
Fixed maturity securities | Non-U.S. corporate | Utilities |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 260 | 298 | 269 | 295
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | (5) | (9) | (9) | (4)
Purchases |  | 25 | 1 | 35 | 4
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | 0 | (15) | (5)
Transfer into Level 3 | [1] | 0 | 30 | 0 | 30
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 280 | 320 | 280 | 320
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | (6) | (8) | (10) | (3)
Fixed maturity securities | Non-U.S. corporate | Energy |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 130 | 119 | 131 | 118
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | 0 | (2) | (1) | 0
Purchases |  | 0 | 0 | 0 | 0
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (11) | 0 | (11) | (1)
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 119 | 117 | 119 | 117
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | (2) | (1) | 0
Fixed maturity securities | Non-U.S. corporate | Finance and insurance |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 132 | 131 | 134 | 125
Total realized and unrealized gains (losses) included in net income, assets |  | 1 | 2 | 3 | 3
Total realized and unrealized gains (losses), Included in OCI |  | 0 | (7) | (4) | (2)
Purchases |  | 0 | 0 | 0 | 0
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | 0 | 0 | 0
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 133 | 126 | 133 | 126
Total gains (losses) included in net income attributable to assets still held |  | 1 | 2 | 3 | 3
Total gains (losses) included in OCI attributable to assets still held |  | 0 | (6) | (4) | (2)
Fixed maturity securities | Non-U.S. corporate | Consumer-non-cyclical |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 77 | 73 | 81 | 73
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | 0 | 0 | (1) | 0
Purchases |  | 0 | 0 | 0 | 0
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | 0 | (3) | 0
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 77 | 73 | 77 | 73
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | (1) | (1) | (1) | 0
Fixed maturity securities | Non-U.S. corporate | Technology and communications |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 24 | 26 | 24 | 26
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | 0 | 0 | 0 | 0
Purchases |  | 0 | 0 | 0 | 0
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (7) | 0 | (7) | 0
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 17 | 26 | 17 | 26
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | 0 | 0 | 0
Fixed maturity securities | Non-U.S. corporate | Industrial |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 61 | 75 | 63 | 48
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | (1) | 0 | (2) | 2
Purchases |  | 0 | 0 | 0 | 25
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | 0 | (1) | 0
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 60 | 75 | 60 | 75
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | (1) | (1) | (2) | 1
Fixed maturity securities | Non-U.S. corporate | Capital goods |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 33 | 52 | 53 | 95
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 1
Total realized and unrealized gains (losses), Included in OCI |  | (2) | (1) | (2) | 3
Purchases |  | 14 | 0 | 14 | 0
Sales |  | 0 | 0 | 0 | (12)
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | 0 | (20) | (36)
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 45 | 51 | 45 | 51
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | (1) | 0 | (1) | 2
Fixed maturity securities | Non-U.S. corporate | Consumer-cyclical |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 1 | 9 | 1 | 64
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | (1) | 1 | (1) | 7
Purchases |  | 7 | 0 | 7 | 0
Sales |  | 0 | 0 | 0 | (6)
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | (1) | 0 | (56)
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 7 | 9 | 7 | 9
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | 0 | 0 | 1
Fixed maturity securities | Non-U.S. corporate | Transportation |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 22 | 22 | 22 | 20
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | 0 | (1) | 0 | 0
Purchases |  | 0 | 0 | 0 | 1
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | 0 | 0 | 0
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 22 | 21 | 22 | 21
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | (1) | 0 | 0
Fixed maturity securities | Non-U.S. corporate | Other |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 51 | 22 | 52 | 21
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | 0 | (1) | (1) | 0
Purchases |  | 0 | 0 | 0 | 0
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | 0 | 0 | 0
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 51 | 21 | 51 | 21
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | 0 | (1) | 0
Fixed maturity securities | Residential mortgage-backed |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 3 | 8 | 3 | 22
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | 0 | 1 | 0 | 2
Purchases |  | 0 | 0 | 0 | 0
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (1) | (1) | (1) | (1)
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | (15)
Ending balance |  | 2 | 8 | 2 | 8
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | 0 | 0 | 0
Fixed maturity securities | Commercial mortgage-backed |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 11 | 12 | 11 | 12
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | 0 | 0 | 0 | 0
Purchases |  | 0 | 0 | 0 | 0
Sales |  | 0 | (1) | 0 | (1)
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | 0 | 0 | 0
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 11 | 11 | 11 | 11
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | 0 | 0 | 0
Fixed maturity securities | Other asset-backed |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 108 | 95 | 102 | 94
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | (1) | (1) | (1) | 1
Purchases |  | 25 | 10 | 40 | 12
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | (5) | 0 | (7) | (1)
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | (14) | 0 | (21) | (2)
Ending balance |  | 113 | 104 | 113 | 104
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | (1) | (1) | 1
Equity Securities |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 32 | 33 | 32 | 34
Total realized and unrealized gains (losses) included in net income, assets |  | 0 | 0 | 0 | 0
Total realized and unrealized gains (losses), Included in OCI |  | 0 | 0 | 0 | 0
Purchases |  | 18 | 1 | 18 | 1
Sales |  | (8) | (4) | (8) | (5)
Issuances |  | 0 | 0 | 0 | 0
Settlements |  | 0 | 0 | 0 | 0
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 42 | 30 | 42 | 30
Total gains (losses) included in net income attributable to assets still held |  | 0 | 0 | 0 | 0
Total gains (losses) included in OCI attributable to assets still held |  | 0 | 0 | 0 | 0
Limited partnerships |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |
Beginning balance |  | 19 | 22 | 20 | 24
Total realized and unrealized gains (losses) included in net income, assets |  | (3) | (1) | (4) | (3)
Total realized and unrealized gains (losses), Included in OCI |  | 0 | 0 | 0 | 0
Purchases |  | 0 | 0 | 0 | 0
Sales |  | 0 | 0 | 0 | 0
Issuances |  | 0 | 0 | 0 | 0
Settlements |  |  | 0 | 0 | 0
Transfer into Level 3 | [1] | 0 | 0 | 0 | 0
Transfer out of Level 3 | [1] | 0 | 0 | 0 | 0
Ending balance |  | 16 | 21 | 16 | 21
Total gains (losses) included in net income attributable to assets still held |  | (3) | (1) | (4) | (3)
Total gains (losses) included in OCI attributable to assets still held |  | $ 0 | $ 0 | $ 0 | $ 0
[1] | The transfers into and out of Level 3 for fixed maturity securities were related to changes in the primary pricing source and changes in the observability of external information used in determining the fair value, such as external ratings or credit spreads, as well as changes in the industry sectors assigned to specific securities.

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