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ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables)

12 Months Ended

Dec. 31, 2020

Equity [Abstract]

Schedule of other comprehensive income

The following table presents the changes in the balances, net of income taxes, of each component of AOCI:

(in millions)									Net Unrealized (Losses) Gains on Derivatives						Net Unrealized (Losses) Gains on Securities						Employee Benefit Plans						Total AOCI
Balance at January 1, 2018									($143)						($236)						($441)						($820)
Other comprehensive loss before reclassifications									(33)						(239)						—						(272)
Other-than-temporary impairment not recognized in earnings on debt securities									—						(3)						—						(3)
Amounts reclassified to the Consolidated Statements of Operations									33						(12)						(22)						(1)
Net other comprehensive loss									—						(254)						(22)						(276)
Balance at December 31, 2018									($143)						($490)						($463)						($1,096)
Other comprehensive income before reclassifications									103						501						—						604
Amounts reclassified to the Consolidated Statements of Operations									43						(15)						48						76
Net other comprehensive income									146						486						48						680
Cumulative effect of change in accounting principle									—						5						—						5
Balance at December 31, 2019									$3						$1						($415)						($411)
Other comprehensive income before reclassifications									97						382						—						479
Amounts reclassified to the Consolidated Statements of Operations									(111)						(3)						(14)						(128)
Net other comprehensive (loss) income									(14)						379						(14)						351
Balance at December 31, 2020									($11)						$380						($429)						($60)
Primary location in the Consolidated Statement of Operations of amounts reclassified from AOCI									Net interest income						Securities gains, net						Other operating expense

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- Definition

Tabular disclosure of the components of accumulated other comprehensive income (loss).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=121641772&loc=SL7669686-108580

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900

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