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Fair Value Measurements Level 4 Fair Value Level 3 Roll Forward (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Mar. 31, 2017 | Dec. 31, 2016 | Mar. 31, 2016 | Dec. 31, 2015
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Equity Securities, Amortized Cost Basis | $ 964 |  | $ 964 |  |  | $ 1,020 |  |
Available-for-sale Securities, Debt Securities | 57,834 |  | 57,834 |  |  | 56,003 |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 807 |  | 807 |  |  | 988 |  |
Other Short-term Investments | 4,716 |  | 4,716 |  |  | 3,244 |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 4,318 | $ 4,428 | 4,318 | $ 4,428 | $ 4,491 | 4,422 | $ 4,184 | $ 3,911
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings | (22) | 6 | (80) | (8) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | 35 | 48 | 67 | 31 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | 459 | 190 | 1,013 | 667 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | (328) | (226) | (474) | (306) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | (100) | (90) | (294) | (129) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 | 59 | 491 | 128 | 559 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 | 276 | 175 | 464 | 297 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) | (27) | 4 | (87) | 5 |  |  |  |
Marketable Securities, Fixed Maturities | 146 |  | 146 |  |  | 293 |  |
Trading Securities, Equity | 11 |  | 11 |  |  | 11 |  |
Available-for-sale Securities, Equity Securities | 1,055 |  | 1,055 |  |  | 1,097 |  |
Separate Account Assets | 116,746 |  | 116,746 |  |  | 115,665 |  |
Assets, Fair Value Disclosure | 176,587 |  | 176,587 |  |  | 172,243 |  |
Fixed Maturities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure | 146 |  | 146 |  |  | 293 |  |
Equity Securities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Assets, Fair Value Disclosure | 0 |  | 0 |  |  | 0 |  |
Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 463 |  | 463 |  |  | 620 |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 0 |  | 0 |  |  | 0 |  |
Other Short-term Investments | 1,916 |  | 1,916 |  |  | 878 |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Marketable Securities, Fixed Maturities | 0 |  | 0 |  |  | 1 |  |
Trading Securities, Equity | 11 |  | 11 |  |  | 11 |  |
Available-for-sale Securities, Equity Securities | 789 |  | 789 |  |  | 821 |  |
Assets, Fair Value Disclosure | 76,198 |  | 76,198 |  |  | 73,937 |  |
Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 53,576 |  | 53,576 |  |  | 51,573 |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 653 |  | 653 |  |  | 736 |  |
Other Short-term Investments | 2,800 |  | 2,800 |  |  | 2,366 |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Marketable Securities, Fixed Maturities | 146 |  | 146 |  |  | 281 |  |
Trading Securities, Equity | 0 |  | 0 |  |  | 0 |  |
Available-for-sale Securities, Equity Securities | 168 |  | 168 |  |  | 177 |  |
Assets, Fair Value Disclosure | 95,233 |  | 95,233 |  |  | 92,960 |  |
Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 3,795 |  | 3,795 |  |  | 3,810 |  |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | 154 |  | 154 |  |  | 252 |  |
Other Short-term Investments | 0 |  | 0 |  |  | 0 |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 192 | 171 | 192 | 171 | 277 | 201 | 154 | 139
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings | 2 | 0 | 3 |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | 0 | 3 | 2 | 7 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | 13 | 22 | 111 | 61 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | (2) | (3) | (7) | (9) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | (34) | (6) | (42) | (16) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 | 7 | 3 | 10 | 6 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 | (71) | (2) | (86) | 17 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value | (198) | (440) | (198) | (440) | (219) | (299) | (386) | (288)
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, Settlements | (17) | (16) | (33) | (33) |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) | 0 | 0 | 1 |  |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Change in Unrealized Gain (Loss) | 38 | (38) | 134 | (119) |  |  |  |
Marketable Securities, Fixed Maturities | 0 |  | 0 |  |  | 11 |  |
Trading Securities, Equity | 0 |  | 0 |  |  | 0 |  |
Available-for-sale Securities, Equity Securities | 98 |  | 98 |  |  | 99 |  |
Assets, Fair Value Disclosure | 4,274 |  | 4,274 |  |  | 4,375 |  |
Fair Value, Inputs, Level 3 [Member] | Reinsurance Recoverable [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 57 |  | 57 |  | 60 | 73 |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings | (7) |  | (23) |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | 0 |  | 0 |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | 0 |  | 0 |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | (4) |  | (7) |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | 0 |  | 0 |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 | 0 |  | 0 |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 | 0 |  | 0 |  |  |  |  |
Fair Value, Inputs, Level 3 [Member] | Fixed Maturities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 0 | 6 | 0 | 6 |  | 11 | 14 | 16
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 1 | 0 | (1) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) |  | 0 | 0 | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases |  | 1 | 4 | 6 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements |  | (1) | (2) | (2) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales |  | (3) | (13) | (3) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | 0 | 0 | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 |  | (6) |  | 10 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) | 0 | 0 | 0 | (1) |  |  |  |
Fair Value, Inputs, Level 3 [Member] | Derivative [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3 | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3 | 0 | (6) | 0 | (6) |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | 176 | 279 | 176 | 279 | 185 | 228 | 271 | 267
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings | (9) | 2 | (57) | (8) |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss) | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements | 0 | 0 | 0 | 2 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Sales | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases | 0 | 0 | 5 | 16 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Change in Unrealized Gain (Loss) | (8) | 2 | (52) | (8) |  |  |  |
Guaranteed Minimum Withdrawal Benefit [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value | (134) | (412) | (134) | (412) | (157) | (241) | (361) | (262)
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, Settlements | (17) | (16) | (33) | (33) |  |  |  |
Equity Contract [Member] | Fair Value, Inputs, Level 3 [Member] | Derivative [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3 | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3 | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | 2 | 1 | 2 | 1 | 4 | 0 | 5 | 0
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings | (2) | (4) | (3) | (15) |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss) | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Sales | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases | 0 | 0 | 5 | 16 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Change in Unrealized Gain (Loss) | (2) | (4) | (2) | (15) |  |  |  |
Interest Rate Contract [Member] | Fair Value, Inputs, Level 3 [Member] | Derivative [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3 | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3 | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | (26) | (32) | (26) | (32) | (24) | (21) | (28) | (22)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings | (2) | (4) | (5) | (10) |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss) | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Sales | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Change in Unrealized Gain (Loss) | (2) | (4) | (2) | (10) |  |  |  |
Other Contract [Member] | Fair Value, Inputs, Level 3 [Member] | Derivative [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3 | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3 | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | 0 | 4 | 0 | 4 | 0 | 1 | 5 | 7
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings | 0 | (1) | (1) | (3) |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss) | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Sales | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Change in Unrealized Gain (Loss) | 0 | (1) | 0 | (3) |  |  |  |
US Macro Hedge Program [Member] | Fair Value, Inputs, Level 3 [Member] | Derivative [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3 | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3 | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | 160 | 141 | 160 | 141 | 159 | 167 | 145 | 147
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings | 1 | (4) | (7) | (4) |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss) | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements | 0 | 0 | 0 | 2 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Sales | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Change in Unrealized Gain (Loss) | 2 | (4) | (6) | (4) |  |  |  |
Reinsurance Recoverable [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value |  | 106 |  | 106 |  |  | 99 | 83
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings |  | 3 |  | 16 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) |  | 0 |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases |  | 0 |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements |  | (4) |  | (7) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales |  | 0 |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 |  | 0 |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 |  | 0 |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) | (7) | 3 | (23) | 16 |  |  |  |
US GMWB Hedging Instruments [Member] | Fair Value, Inputs, Level 3 [Member] | Derivative [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3 | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3 | 0 | (6) | 0 | (6) |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs | 40 | 165 | 40 | 165 | 46 | 81 | 144 | 135
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings | (6) | 15 | (41) | 24 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Other Comprehensive Income (Loss) | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Sales | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Change in Unrealized Gain (Loss) | (6) | 15 | (42) | 24 |  |  |  |
Other Policyholder Funds and Benefits Payable [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
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, Settlements | (17) | (16) | (33) | (33) |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Change in Unrealized Gain (Loss) | 39 | (38) | 136 | (119) |  |  |  |
Other Policyholder Funds and Benefits Payable [Member] | Guaranteed Minimum Withdrawal Benefit [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Change in Unrealized Gain (Loss) | 40 | (35) | 140 | (117) |  |  |  |
Equity Linked Notes [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value | (37) | (28) | (37) | (28) | (36) | (33) | (25) | (26)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) | 0 |  | 0 |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements | 0 |  | 0 | 0 |  |  |  |
Equity Linked Notes [Member] | Other Policyholder Funds and Benefits Payable [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements |  | 0 |  |  |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Change in Unrealized Gain (Loss) | (1) | (3) | (4) | (2) |  |  |  |
Obligations [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value | (27) |  | (27) |  | (26) | (25) |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements | 0 |  | 0 |  |  |  |  |
Fair Value, Measurements, Recurring [Member] | Other Policyholder Funds and Benefits Payable [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value | (171) | (440) | (171) | (440) | (193) | (274) | (386) | (288)
Fair Value, Measurements, Recurring [Member] | Obligations [Member] | Other Liabilities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Liabilities Measured on Recurring Basis, Change in Unrealized Gain (Loss) | (1) | 0 | (2) | 0 |  |  |  |
Equity Securities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Available-for-sale Securities, Equity Securities | 0 |  | 0 |  |  | 0 |  |
Available-for-sale Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fixed Maturities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 3,795 | 3,769 | 3,795 | 3,769 | 3,870 | 3,810 | 3,554 | 3,313
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings | (8) | (1) | (3) | (15) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | 36 | 40 | 70 | 17 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | 446 | 165 | 889 | 582 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | (330) | (226) | (472) | (300) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | (66) | (78) | (239) | (105) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 | 52 | 488 | 118 | 553 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 | (205) | (173) | (378) | 276 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) | (12) | (1) | (13) | (2) |  |  |  |
Available-for-sale Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Equity Securities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 98 | 97 | 98 | 97 | 99 | 99 | 92 | 93
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings | 0 | 1 | 0 | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | (1) | 5 | (5) | 7 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | 0 | 2 | 4 | 2 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | 0 | (3) | 0 | (5) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 | 0 |  | 0 | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 | 0 | 0 | 0 | 0 |  |  |  |
US Treasury Securities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 4,006 |  | 4,006 |  |  | 3,679 |  |
US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 463 |  | 463 |  |  | 620 |  |
US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 3,543 |  | 3,543 |  |  | 3,059 |  |
US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Residential Mortgage Backed Securities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 4,219 |  | 4,219 |  |  | 4,767 |  |
Residential Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Residential Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 2,208 |  | 2,208 |  |  | 2,795 |  |
Residential Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 2,011 |  | 2,011 |  |  | 1,972 |  |
Residential Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 2,002 |  | 2,002 |  |  | 1,963 |  |
Residential Mortgage Backed Securities [Member] | Available-for-sale Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fixed Maturities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 2,011 | 1,873 | 2,011 | 1,873 | 2,048 | 1,972 | 1,886 | 1,622
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | 27 | 10 | 33 | (4) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | 50 | 97 | 223 | 430 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | (114) | (101) | (210) | (158) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | 0 | 0 | (7) | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 | 0 | 3 | 0 | 5 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 | 0 | (22) | 0 | 22 |  |  |  |
Corporate Debt Securities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 26,044 |  | 26,044 |  |  | 25,666 |  |
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 24,908 |  | 24,908 |  |  | 24,586 |  |
Corporate Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 1,136 |  | 1,136 |  |  | 1,080 |  |
Corporate Debt Securities [Member] | Available-for-sale Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fixed Maturities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 1,136 | 1,136 | 1,136 | 1,136 | 1,078 | 1,080 | 834 | 854
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings | (12) | (1) | (6) | (14) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | 14 | 19 | 30 | 12 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | 46 | 37 | 215 | 67 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | (4) | (50) | (40) | (55) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | (30) | (66) | (190) | (91) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 | 52 | 455 | 92 | 513 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 | (8) | 92 | (45) | (150) |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) | (12) | (1) | (12) | (1) |  |  |  |
US States and Political Subdivisions Debt Securities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 12,284 |  | 12,284 |  |  | 11,486 |  |
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 12,198 |  | 12,198 |  |  | 11,368 |  |
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 86 |  | 86 |  |  | 118 |  |
US States and Political Subdivisions Debt Securities [Member] | Available-for-sale Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fixed Maturities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 86 | 90 | 86 | 90 | 117 | 118 | 50 | 49
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings | 4 | 0 | 4 | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | (1) | 4 | 4 | 5 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | 0 | 20 | 0 | 20 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | (34) |  | (40) | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 | 0 | 16 | 0 | 16 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 | 0 | 0 | 0 | 0 |  |  |  |
Collateralized Debt Obligations [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 2,457 |  | 2,457 |  |  | 1,916 |  |
Collateralized Debt Obligations [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Collateralized Debt Obligations [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 2,118 |  | 2,118 |  |  | 1,502 |  |
Collateralized Debt Obligations [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 339 |  | 339 |  |  | 414 |  |
Collateralized Debt Obligations [Member] | Available-for-sale Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fixed Maturities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 339 | 478 | 339 | 478 | 319 | 414 | 542 | 541
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings | 0 | (1) | 0 | (1) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | (5) | (2) | (1) | (2) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | 300 | 0 | 300 | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | (207) | (61) | (208) | (60) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | 0 | 0 | 0 | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 | 0 | 0 |  | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 | (68) | 0 | (166) | 0 |  |  |  |
Commercial Mortgage Backed Securities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 5,173 |  | 5,173 |  |  | 4,936 |  |
Commercial Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Commercial Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 5,075 |  | 5,075 |  |  | 4,856 |  |
Commercial Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 98 |  | 98 |  |  | 80 |  |
Commercial Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 51 |  | 51 |  |  | 52 |  |
Commercial Mortgage Backed Securities [Member] | Available-for-sale Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fixed Maturities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 98 | 79 | 98 | 79 | 117 | 80 | 134 | 150
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings | 0 | 0 | (1) | (1) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | 1 | 5 | 1 | (3) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | 19 | 10 | 75 | 50 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | (3) | (9) | (6) | (18) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | 0 | (3) | 0 | (3) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 | 0 | 1 | 0 | 1 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 | (36) | (59) | (51) | 97 |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) | 0 | 0 | (1) | (1) |  |  |  |
Asset-backed Securities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 2,354 |  | 2,354 |  |  | 2,382 |  |
Asset-backed Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Asset-backed Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 2,258 |  | 2,258 |  |  | 2,300 |  |
Asset-backed Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 96 |  | 96 |  |  | 82 |  |
Asset-backed Securities [Member] | Available-for-sale Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fixed Maturities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 96 | 41 | 96 | 41 | 125 | 82 | 32 | 37
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings | 0 |  | 0 |  |  |  |  |
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 | 25 |  | 70 | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | (1) | (4) | (6) | (7) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | 0 | 0 |  | 0 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 | 0 | 13 | 26 | 18 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 | (53) | 0 | (76) | (7) |  |  |  |
Foreign Government Debt Securities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 1,297 |  | 1,297 |  |  | 1,171 |  |
Foreign Government Debt Securities [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 0 |  | 0 |  |  | 0 |  |
Foreign Government Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 1,268 |  | 1,268 |  |  | 1,107 |  |
Foreign Government Debt Securities [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] |  |  |  |  |  |  |  |
Available-for-sale Securities, Debt Securities | 29 |  | 29 |  |  | 64 |  |
Foreign Government Debt Securities [Member] | Available-for-sale Securities [Member] | Fair Value, Inputs, Level 3 [Member] | Fixed Maturities [Member] |  |  |  |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | 29 | 72 | 29 | 72 | $ 66 | $ 64 | $ 76 | $ 60
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings | 0 | 1 | 0 | 1 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) | 0 | 4 | 3 | 9 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases | 6 | 1 | 6 | 15 |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements | (1) | (1) | (2) | (2) |  |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales | (2) | (9) | (2) | (11) |  |  |  |
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 | $ (40) | $ 0 | $ (40) | $ 0 |  |  |  |

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- Definition This item represents the cost of equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments for other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References No definition available. + Details
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- Definition Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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