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SECURITIES - Schedule of Investments in Continuous Loss Positions (Details) $ in Millions | Dec. 31, 2018 USD ($) Securities | Dec. 31, 2017 USD ($) Securities
--- | --- | ---
Number of Issues |  |
Less than 12 Months | Securities | 176 | 300
12 Months or Longer | Securities | 440 | 162
Total | Securities | 616 | 462
Fair Value |  |
Less than 12 Months | $ 5,020 | $ 10,218
12 Months or Longer | 15,196 | 8,145
Total | 20,216 | 18,363
Gross Unrealized Losses |  |
Less than 12 Months | (90) | (98)
12 Months or Longer | (654) | (232)
Total | $ (744) | $ (330)
Federal agencies and U.S. government sponsored entities |  |
Number of Issues |  |
Less than 12 Months | Securities | 166 | 294
12 Months or Longer | Securities | 429 | 152
Total | Securities | 595 | 446
Fair Value |  |
Less than 12 Months | $ 4,881 | $ 10,163
12 Months or Longer | 15,124 | 8,061
Total | 20,005 | 18,224
Gross Unrealized Losses |  |
Less than 12 Months | (89) | (97)
12 Months or Longer | (648) | (226)
Total | $ (737) | $ (323)
Other/non-agency |  |
Number of Issues |  |
Less than 12 Months | Securities | 10 | 6
12 Months or Longer | Securities | 11 | 10
Total | Securities | 21 | 16
Fair Value |  |
Less than 12 Months | $ 139 | $ 55
12 Months or Longer | 72 | 84
Total | 211 | 139
Gross Unrealized Losses |  |
Less than 12 Months | (1) | (1)
12 Months or Longer | (6) | (6)
Total | $ (7) | $ (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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