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v3.21.2

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, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Corporate Debt Securities [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, beginning of period |  | $ 3,101 | $ 2,197 | $ 3,029 | $ 2,186
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) |  | 49 | 112 | (33) | (3)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | [1] | 317 | 79 | 540 | 310
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | [1] | (19) | (18) | (20) | (62)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | [1] | (269) | (44) | (341) | (96)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | 25 | 0 | 29 | 1
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 |  | 0 | 4 | 0 | 4
Fair Value, end of period |  | 3,208 | 2,308 | 3,208 | 2,308
Corporate Debt Securities [Member] | Investment Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 2 | 0 | 3 | 1
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 1 | 0 | 2 | 0
Corporate Debt Securities [Member] | Interest Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Corporate Debt Securities [Member] | Other Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Corporate Debt Securities [Member] | Investment Related Gains Losses [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 2 | (14) | 1 | (25)
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | (15) | (1) | (26)
Corporate Debt Securities [Member] | Other Comprehensive Income (Loss) [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 51 | 111 | (31) | (29)
Debt Security, Government, Non-US [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, beginning of period |  | 16 | 15 | 17 | 720
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) |  | 0 | 2 | (1) | 1
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | [1] | 25 | 0 | 25 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | [1] | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | [1] | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 |  | 0 | 0 | 0 | 704
Fair Value, end of period |  | 41 | 17 | 41 | 17
Debt Security, Government, Non-US [Member] | Investment Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Debt Security, Government, Non-US [Member] | Interest Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Debt Security, Government, Non-US [Member] | Other Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Debt Security, Government, Non-US [Member] | Investment Related Gains Losses [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Debt Security, Government, Non-US [Member] | Other Comprehensive Income (Loss) [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 2 | (1) | 1
US Government Agencies Debt Securities [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, beginning of period |  | 22 | 25 | 23 | 25
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) |  | 0 | 0 | 0 | 1
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | [1] | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | [1] | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | [1] | (1) | (1) | (2) | (2)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 |  | 0 | 0 | 0 | 0
Fair Value, end of period |  | 21 | 24 | 21 | 24
US Government Agencies Debt Securities [Member] | Investment Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
US Government Agencies Debt Securities [Member] | Interest Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
US Government Agencies Debt Securities [Member] | Other Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
US Government Agencies Debt Securities [Member] | Investment Related Gains Losses [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
US Government Agencies Debt Securities [Member] | Other Comprehensive Income (Loss) [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 1
Funds Withheld At Interest Embedded Derivatives [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, beginning of period |  | 176 | (109) | 114 | 121
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) |  | 0 | 0 | 1 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | [1] | 16 | 0 | 32 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | [1] | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | [1] | (1) | 0 | (1) | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 |  | 0 | 0 | 0 | 0
Fair Value, end of period |  | 206 | (108) | 206 | (108)
Funds Withheld At Interest Embedded Derivatives [Member] | Investment Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | (1) | 0 | (6) | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | (1) | 0 | (6) | 0
Funds Withheld At Interest Embedded Derivatives [Member] | Interest Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Funds Withheld At Interest Embedded Derivatives [Member] | Other Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Funds Withheld At Interest Embedded Derivatives [Member] | Investment Related Gains Losses [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 16 | 1 | 66 | (229)
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 16 | 1 | 66 | (229)
Funds Withheld At Interest Embedded Derivatives [Member] | Other Comprehensive Income (Loss) [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 1 | 0
Interest Sensitive Contract Liabilities Embedded Derivatives [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales | [1] | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3 |  | 0 | 0 | 0 | 0
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, beginning of period |  | 857 | 1,042 | 907 | 930
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) |  | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases | [1] | (13) | (8) | (17) | (19)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements | [1] | 20 | 21 | 42 | 42
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3 |  | 0 | 0 | 0 | 0
Fair Value, end of period |  | 880 | 930 | 880 | 930
Interest Sensitive Contract Liabilities Embedded Derivatives [Member] | Investment Income [Member] |  |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Interest Sensitive Contract Liabilities Embedded Derivatives [Member] | Interest Income [Member] |  |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  | 13 | 7 | (1) | 1
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 33 | 27 | 41 | 43
Interest Sensitive Contract Liabilities Embedded Derivatives [Member] | Other Income [Member] |  |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Interest Sensitive Contract Liabilities Embedded Derivatives [Member] | Investment Related Gains Losses [Member] |  |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings |  | 17 | (106) | (1) | 22
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 19 | (103) | 3 | 27
Interest Sensitive Contract Liabilities Embedded Derivatives [Member] | Other Comprehensive Income (Loss) [Member] |  |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Equity securities |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, beginning of period |  | 54 | 56 | 53 | 77
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) |  | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | [1] | 0 | 3 | 0 | 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | [1] | (1) | 0 | (1) | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | [1] | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 |  | 0 | 0 | 0 | 14
Fair Value, end of period |  | 63 | 62 | 63 | 62
Equity securities | Investment Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Equity securities | Interest Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Equity securities | Other Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Equity securities | Investment Related Gains Losses [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 10 | 3 | 11 | (4)
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 9 | 3 | 10 | (4)
Equity securities | Other Comprehensive Income (Loss) [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Short-term Investments [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, beginning of period |  | 11 | 1 | 15 | 2
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) |  | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | [1] | 0 | 5 | 0 | 5
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | [1] | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | [1] | (10) | (1) | (10) | (1)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | 0 | 0 | 0 | 0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 |  | 1 | 0 | 5 | 1
Fair Value, end of period |  | 0 | 5 | 0 | 5
Short-term Investments [Member] | Investment Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Short-term Investments [Member] | Interest Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Short-term Investments [Member] | Other Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Short-term Investments [Member] | Investment Related Gains Losses [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Short-term Investments [Member] | Other Comprehensive Income (Loss) [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Structured Finance [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, beginning of period |  | 388 | 144 | 254 | 208
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) |  | 5 | 17 | 4 | (10)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | [1] | 262 | 15 | 428 | 24
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | [1] | (2) | (3) | (2) | (4)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | [1] | (24) | (18) | (85) | (31)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | 24 | 0 | 54 | 21
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 |  | 0 | 2 | 0 | 55
Fair Value, end of period |  | 653 | 153 | 653 | 153
Structured Finance [Member] | Investment Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Structured Finance [Member] | Interest Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Structured Finance [Member] | Other Income [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Structured Finance [Member] | Investment Related Gains Losses [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 0 | 0 | 0 | 0
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | 0 | 0 | 0 | 0
Structured Finance [Member] | Other Comprehensive Income (Loss) [Member] |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) |  | $ 5 | $ 16 | $ 4 | $ (11)
[1] | The amount reported within purchases, sales and settlements is the purchase price (for purchases) and the sales/settlement proceeds (for sales and settlements) based upon the actual date purchased or sold/settled. Items purchased and sold/settled in the same period are excluded from the rollforward. The Company had no issuances during the period.

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- Definition Amount of unrealized gain (loss) recognized in income from asset measured at fair value on recurring basis using unobservable input (level 3) and still held. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Amount of unrealized gain (loss) recognized in income from liability measured at fair value on recurring basis using unobservable input (level 3) and still held. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Amount of transfers of financial instrument classified as a liability into level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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- Definition Amount of transfers of financial instrument classified as a liability out of level 3 of the fair value hierarchy. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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