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SECURITIES - Schedule of Investments in Continuous Loss Positions (Details) - USD ($) $ in Millions | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Fair Value |  |
Less than 12 Months | $ 805 |
12 Months or Longer | 0 |
Total | 805 |
Gross Unrealized Losses |  |
Less than 12 Months | (7) |
12 Months or Longer | 0 |
Total | (7) |
Federal agencies and U.S. government sponsored entities |  |
Fair Value |  |
Less than 12 Months | 456 | $ 5,135
12 Months or Longer | 0 | 3,748
Total | 456 | 8,883
Gross Unrealized Losses |  |
Less than 12 Months | (3) | (24)
12 Months or Longer | 0 | (52)
Total | (3) | $ (76)
Other/non-agency |  |
Fair Value |  |
Less than 12 Months | 349 |
12 Months or Longer | 0 |
Total | 349 |
Gross Unrealized Losses |  |
Less than 12 Months | (4) |
12 Months or Longer | 0 |
Total | $ (4) |

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- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118955579&loc=SL82922890-210455 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27337-111563 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=118942371&loc=SL82922954-210456 + Details
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- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27337-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118955579&loc=SL82922890-210455 + Details
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