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Consolidated Statement of Cash Flows (Parenthetical) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2022 | Mar. 31, 2021
Statement of Cash Flows [Abstract] |  |  |
Transfer from securities available for sale to securities held to maturity | [1] | $ 20,041 |
Transferred securities from available for sale to held to maturity |  | 18,700 |
Net unrealized losses, related to securities transferred to held to maturity |  | $ 1,300 |
[1] | During the first quarter of 2022, we transferred securities from available for sale to held to maturity in a non-cash transaction. The amount of $20.0 billion includes the fair value of the securities of $18.7 billion and net pretax unrealized losses of $1.3 billion included in AOCI. See Note 3 Investment Securities for more detailed information on the transfer.

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- Definition Debt Securities, Available-For-Sale, Transfer To Held-To-Maturity, Including Unrealized Losses + References No definition available. + Details
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- Definition Amount, before tax, of adjustment from accumulated other comprehensive income (loss) for amortization of gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) from transfer to investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 35 -Paragraph 10B -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=124260725&loc=SL120268667-111560 + Details
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