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Variable Interest Entities Variable Interest Entity - Change in Fair Value of Assets and Liabilities (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Deconsolidated VIE Assets | $ 0 |  | $ 0 |  |
Fixed income securities, amortized cost | 2,807 | $ 3,187 | 2,807 | $ 3,187 |
Long-term debt | 2,739 | 2,822 | 2,739 | 2,822 |
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax | 149 | 132 | 149 | 132 |
Variable Interest Entity Change in Fair Value of Assets and Liabilities |  |  | (1) | 13 | $ 3
Other Comprehensive Income (Loss), Financial Liability, Fair Value Option, Reclassification Adjustment from AOCI for Derecognition, before Tax |  |  |  |  | (1)
Realized Investment Gains (Losses) | 2 | 9 | 22 | 81 | 108
Variable Interest Entity, Initial Consolidation, Gain (Loss) |  |  | 0 | 15 | 0
Variable Interest Entities Deconsolidation Gain Loss |  |  | 0 | (2) | 2
Variable Interest Entity, Measure of Activity, Income or Loss before Tax |  |  | 5 | $ 38 | $ 3
Variable Interest Entity, Consolidated, Carrying Amount, Assets | 292 |  | 292 |  |
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities | 364 |  | 364 |  |
Deconsolidated VIE Liabilities | 0 |  | $ 0 |  |
Consolidated Entities [Member] |  |  |  |  |
Number of DeConsolidated Variable Interest Entities |  |  | 1 | 1 | 4
Variable Interest Entities [Member] |  |  |  |  |
Loans, Unpaid principal balance | 2,546 | 2,618 | $ 2,546 | $ 2,618 |
Long-term debt, Unpaid principal balance | 3,769 | 3,800 | 3,769 | 3,800 |
Other Comprehensive Income (Loss), Financial Liability, Fair Value Option, Reclassification Adjustment from AOCI for Derecognition, before Tax |  |  | (3) | 14 | $ 2
Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member] |  |  |  |  |
Other Comprehensive Income (Loss), Financial Liability, Fair Value Option, Reclassification Adjustment from AOCI for Derecognition, before Tax |  |  | (1) | 0 |
Variable Interest Entity [Member] |  |  |  |  |
Long-term debt | $ 4,493 | $ 4,554 | 4,493 | 4,554 |
Interest Expense, Long-term Debt |  |  | (6) | (11) | 0
Other Expenses |  |  | 0 | (1) | 0
Variable Interest Entity [Member] | Available-for-sale Securities [Member] |  |  |  |  |
Gross Investment Income, Operating |  |  | 7 | 10 | 0
Realized Investment Gains (Losses) |  |  | $ 8 | $ 13 | $ 0

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- Definition Deconsolidated VIE Assets + References No definition available. + Details
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- Definition Deconsolidated VIE Liabilities + References No definition available. + Details
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- Definition This represents the amount of principal outstanding on loans receivable that are presented on the balance sheet at fair value, whether such presentation is as a separate caption or parenthetical disclosure. + References No definition available. + Details
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- Definition This represents the amount of principal outstanding on long-term debt that is presented on the balance sheet at fair value, whether such presentation is as a separate caption or parenthetical disclosure. + References No definition available. + Details
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- Definition Number of DeConsolidated Variable Interest Entities + References No definition available. + Details
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- Definition VIE Change in FV of Assets Liabilities, Net of Credit Risk Change + References No definition available. + Details
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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563 + Details
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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942338&loc=SL82898722-210454 + Details
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- Definition Amount, before investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.2) -URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263 + Details
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount, before tax, of reclassification adjustment from accumulated other comprehensive income (loss) for unrealized gain (loss) from increase (decrease) in instrument-specific credit risk, realized upon derecognition of financial liability measured under fair value option. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (l) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (d)(4) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e689-108580 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 17A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL34724391-108580 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580 + Details
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- Definition Description of the amount of pre-tax income (loss) derived by the reporting entity from the Variable Interest Entity (VIE). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph d -URI http://asc.fasb.org/extlink&oid=118582676&loc=d3e5747-111685 + Details
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