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Investments (Net Inv Inc summary) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Mar. 31, 2020
Investments, Debt and Equity Securities [Abstract] |  |  |  |  |  |  |
Investment income on fixed maturities | $ 290 |  | $ 344 | $ 612 |  | $ 697 |
Net realized gains (losses) | (3) | [1] | 0 | (22) | [1] | 4 |
Affordable housing partnerships | (22) |  | (17) | (36) |  | (32) |
Other | 23 |  | 16 | 45 |  | 48 |
Consolidated investment entities | 17 |  | 25 | 34 |  | 48 |
Net investment income | 305 |  | $ 368 | 633 |  | $ 765 |
Allowance for Credit Loss | $ 28 |  |  | $ 28 |  |  | $ 4
[1] | Includes the change in the allowance for credit losses of $(4) million and $(28) million for the three months and six months ended June 30, 2020, respectively.

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- Definition Represents the equity method losses related to investments in affordable housing partnerships. + References No definition available. + Details
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- Definition Represents the income from investments in consolidated investment entities. + References No definition available. + Details
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- Definition Interest income on fixed maturity securities classified as Available-for-Sale, commercial mortgage loans, policy loans, consumer loans, other investments and cash and cash equivalents; the changes in fair value of trading securities, including seed money, certain derivatives, and assets and liabilities of consolidated investment entities; the pro rata share of net income or loss on equity method investments; and realized gains and losses on the sale of securities and charges for investments determined to be other-than-temporarily impaired. + References No definition available. + Details
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- Definition Amount of allowance for credit loss 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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118955579&loc=SL82922900-210455 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 9 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=118955579&loc=SL82922900-210455 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aaa) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27161-111563 Reference 4: 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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