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SECURITIES - Schedule of Investments in Continuous Loss Positions (Details) $ in Millions | Mar. 31, 2019 USD ($) Securities | Dec. 31, 2018 USD ($) Securities
--- | --- | ---
Number of Issues |  |
Less than 12 Months | Securities | 13 | 176
12 Months or Longer | Securities | 526 | 440
Total | Securities | 539 | 616
Fair Value |  |
Less than 12 Months | $ 569 | $ 5,020
12 Months or Longer | 17,596 | 15,196
Total | 18,165 | 20,216
Gross Unrealized Losses |  |
Less than 12 Months | (1) | (90)
12 Months or Longer | (419) | (654)
Total | $ (420) | $ (744)
Federal agencies and U.S. government sponsored entities |  |
Number of Issues |  |
Less than 12 Months | Securities | 13 | 166
12 Months or Longer | Securities | 519 | 429
Total | Securities | 532 | 595
Fair Value |  |
Less than 12 Months | $ 569 | $ 4,881
12 Months or Longer | 17,548 | 15,124
Total | 18,117 | 20,005
Gross Unrealized Losses |  |
Less than 12 Months | (1) | (89)
12 Months or Longer | (415) | (648)
Total | $ (416) | $ (737)
Other/non-agency |  |
Number of Issues |  |
Less than 12 Months | Securities | 0 | 10
12 Months or Longer | Securities | 7 | 11
Total | Securities | 7 | 21
Fair Value |  |
Less than 12 Months | $ 0 | $ 139
12 Months or Longer | 48 | 72
Total | 48 | 211
Gross Unrealized Losses |  |
Less than 12 Months | 0 | (1)
12 Months or Longer | (4) | (6)
Total | $ (4) | $ (7)

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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. + 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=82897076&loc=d3e27337-111563 + Details
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