$c 2020 Q4 10-K

Concept	2020 Q4	2020 Q3	2020 Q2
Revenue	$16.83B	$17.68B	$20.04B
YoY Change	-8.41%	-4.83%	6.81%
Cost Of Revenue	-$46.00M	$2.384B	$8.197B
YoY Change	-102.07%	14.18%	291.64%
Gross Profit	$16.88B	$15.29B	$11.84B
YoY Change	4.47%	-7.24%	-28.96%
Gross Profit Margin	100.27%	86.51%	59.09%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development		$1.891B	$1.741B
YoY Change		6.06%	0.99%
% of Gross Profit		12.37%	14.71%
Depreciation & Amortization	$1.051B	$1.033B	$926.0M
YoY Change	1.15%	5.09%	-2.73%
% of Gross Profit	6.23%	6.75%	7.82%
Operating Expenses		$1.891B	$1.741B
YoY Change		6.06%	0.99%
Operating Profit		$13.40B	$10.10B
YoY Change		-8.85%	-32.41%
Interest Expense		$2.821B	$3.509B
YoY Change		-62.57%	-54.79%
% of Operating Profit		21.05%	34.75%
Other Income/Expense, Net		$378.0M	$106.0M
YoY Change		-19000.0%	-85.3%
Pretax Income	$5.441B	$3.954B	$1.109B
YoY Change	-4.58%	-34.34%	-82.01%
Income Tax	$1.116B	$777.0M	$52.00M
% Of Pretax Income	20.51%	19.65%	4.69%
Net Earnings	$4.309B	$3.146B	$1.056B
YoY Change	-13.46%	-35.97%	-78.0%
Net Earnings / Revenue	25.6%	17.8%	5.27%
Basic Earnings Per Share	$1.93	$1.37	$0.38
Diluted Earnings Per Share	$1.92	$1.36	$0.38
COMMON SHARES
Basic Shares Outstanding		2.082B shares	2.082B shares
Diluted Shares Outstanding		2.094B shares	2.084B shares

Concept	2020 Q4	2020 Q3	2020 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$309.6B	$323.7B	$309.8B
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$2.800B	$2.900B	$2.900B
YoY Change	-9.68%	-3.33%	0.0%
Goodwill	$22.16B	$21.62B	$21.40B
YoY Change	0.16%	-0.91%	-3.02%
Intangibles	$4.747B	$4.804B	$4.451B
YoY Change	-1.56%	-0.83%	-11.44%
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$2260B	$2234B	$2233B
YoY Change	15.83%	10.9%	12.3%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$50.48B	$54.33B	$60.57B
YoY Change	3.87%	-14.23%	-13.28%
Accrued Expenses	$3.100B	$3.100B	$3.200B
YoY Change	-6.06%	-6.06%	3.23%
Deferred Revenue
YoY Change
Short-Term Debt	$29.51B	$37.44B	$40.16B
YoY Change	-34.48%	6.27%	-5.39%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$53.58B	$57.43B	$63.77B
YoY Change	3.24%	-13.83%	-12.57%
LONG-TERM LIABILITIES
Long-Term Debt	$260.8B	$258.6B	$261.8B
YoY Change	7.2%	9.22%	7.07%
Other Long-Term Liabilities	$224.9B	$201.9B	$207.3B
YoY Change	28.83%	5.81%	5.89%
Total Long-Term Liabilities	$485.7B	$460.4B	$469.1B
YoY Change	16.24%	7.7%	6.54%
TOTAL LIABILITIES
Total Short-Term Liabilities	$53.58B	$57.43B	$63.77B
Total Long-Term Liabilities	$485.7B	$460.4B	$469.1B
Total Liabilities	$2060B	$2040B	$2040B
YoY Change	17.22%	12.22%	13.98%
SHAREHOLDERS EQUITY
Retained Earnings	$168.3B	$165.3B	$163.4B
YoY Change	1.76%	2.17%	3.23%
Common Stock	$31.00M	$31.00M	$31.00M
YoY Change	0.0%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$64.13B	$64.14B	$64.14B
YoY Change	4.0%	13.43%	24.73%
Treasury Stock Shares	1.018B shares	1.018B shares	1.018B shares
Shareholders Equity	$199.4B	$193.9B	$191.6B
YoY Change
Total Liabilities & Shareholders Equity	$2260B	$2234B	$2233B
YoY Change	15.83%	10.9%	12.3%

Concept	2020 Q4	2020 Q3	2020 Q2
OPERATING ACTIVITIES
Net Income	$4.309B	$3.146B	$1.056B
YoY Change	-13.46%	-35.97%	-78.0%
Depreciation, Depletion And Amortization	$1.051B	$1.033B	$926.0M
YoY Change	1.15%	5.09%	-2.73%
Cash From Operating Activities	$1.633B	-$3.046B	$6.325B
YoY Change	-92.75%	-227.02%	-4617.86%
INVESTING ACTIVITIES
Capital Expenditures	-$1.146B	-$982.0M	-$858.0M
YoY Change	17.42%	-2.87%	-69.69%
Acquisitions
YoY Change
Other Investing Activities	-$10.97B	$9.471B	-$17.97B
YoY Change	6.4%	-157.82%	127.12%
Cash From Investing Activities	-$12.11B	$8.489B	-$18.83B
YoY Change	7.36%	-148.82%	75.26%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-2.437B	8.309B	36.37B
YoY Change	-93.62%	-74.7%	314.42%
NET CHANGE
Cash From Operating Activities	1.633B	-3.046B	6.325B
Cash From Investing Activities	-12.11B	8.489B	-18.83B
Cash From Financing Activities	-2.437B	8.309B	36.37B
Net Change In Cash	-12.92B	13.75B	23.86B
YoY Change	-52.13%	-22.95%	-1230.71%
FREE CASH FLOW
Cash From Operating Activities	$1.633B	-$3.046B	$6.325B
Capital Expenditures	-$1.146B	-$982.0M	-$858.0M
Free Cash Flow	$2.779B	-$2.064B	$7.183B
YoY Change	-88.17%	-160.55%	166.93%

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020	dei	Entity Central Index Key EntityCentralIndexKey	0000831001
CY2020	dei	Amendment Flag AmendmentFlag	false
CY2020	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2020
CY2020	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2019	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	us-gaap:AccountingStandardsUpdate201613Member
CY2019	us-gaap	Change In Accounting Principle Type Extensible List ChangeInAccountingPrincipleTypeExtensibleList	us-gaap:ChangeInAccountingPrincipleMember
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	us-gaap:OtherAssets
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList	us-gaap:OtherAssets
CY2020	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2020	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2020	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2020	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2020Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilities
CY2019Q4	us-gaap	Operating Lease Liability Statement Of Financial Position Extensible List OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList	us-gaap:OtherLiabilities
CY2020	dei	Document Type DocumentType	10-K
CY2020	dei	Document Annual Report DocumentAnnualReport	true
CY2020	dei	Document Period End Date DocumentPeriodEndDate	2020-12-31
CY2020	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2020	dei	Document Transition Report DocumentTransitionReport	false
CY2020	dei	Entity File Number EntityFileNumber	1-9924
CY2020	dei	Entity Registrant Name EntityRegistrantName	Citigroup Inc
CY2020	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2020	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	52-1568099
CY2020	dei	Entity Address Address Line1 EntityAddressAddressLine1	388 Greenwich Street,
CY2020	dei	Entity Address City Or Town EntityAddressCityOrTown	New York
CY2020	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
CY2020	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	10013
CY2020	dei	City Area Code CityAreaCode	212
CY2020	dei	Local Phone Number LocalPhoneNumber	559-1000
CY2020	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2020	dei	Entity Small Business EntitySmallBusiness	false
CY2020	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2020	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2020	dei	Entity Shell Company EntityShellCompany	false
CY2020Q2	dei	Entity Public Float EntityPublicFloat	106200000000	USD
CY2021Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	2087317952	shares
CY2020	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	58089000000	USD
CY2019	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	76510000000	USD
CY2018	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	70828000000	USD
CY2020	us-gaap	Interest Expense InterestExpense	14541000000	USD
CY2019	us-gaap	Interest Expense InterestExpense	29163000000	USD
CY2018	us-gaap	Interest Expense InterestExpense	24266000000	USD
CY2020	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	43548000000	USD
CY2019	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	47347000000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	46562000000	USD
CY2020	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	11385000000	USD
CY2019	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	11746000000	USD
CY2018	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	11857000000	USD
CY2020	us-gaap	Principal Transactions Revenue PrincipalTransactionsRevenue	13885000000	USD
CY2019	us-gaap	Principal Transactions Revenue PrincipalTransactionsRevenue	8892000000	USD
CY2018	us-gaap	Principal Transactions Revenue PrincipalTransactionsRevenue	8905000000	USD
CY2020	c	Administration And Other Fiduciary Fees AdministrationAndOtherFiduciaryFees	3472000000	USD
CY2019	c	Administration And Other Fiduciary Fees AdministrationAndOtherFiduciaryFees	3411000000	USD
CY2018	c	Administration And Other Fiduciary Fees AdministrationAndOtherFiduciaryFees	3580000000	USD
CY2020	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	1756000000	USD
CY2019	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	1474000000	USD
CY2018	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	421000000	USD
CY2020	c	Impairment Of Investments And Equity Method Investment Other Than Temporary Impairment ImpairmentOfInvestmentsAndEquityMethodInvestmentOtherThanTemporaryImpairment	165000000	USD
CY2019	c	Impairment Of Investments And Equity Method Investment Other Than Temporary Impairment ImpairmentOfInvestmentsAndEquityMethodInvestmentOtherThanTemporaryImpairment	32000000	USD
CY2018	c	Impairment Of Investments And Equity Method Investment Other Than Temporary Impairment ImpairmentOfInvestmentsAndEquityMethodInvestmentOtherThanTemporaryImpairment	132000000	USD
CY2020	us-gaap	Debt Securities Available For Sale Change In Present Value Expense Reversal DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal	3000000	USD
CY2019	us-gaap	Debt Securities Available For Sale Change In Present Value Expense Reversal DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal	0	USD
CY2018	us-gaap	Debt Securities Available For Sale Change In Present Value Expense Reversal DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal	0	USD
CY2020	c	Otherthan Temporary Impairment Losses Investments Portion Recognizedin Earnings Net Equity Method Investment Otherthan Temporary Impairment And Investment Impairment Measurement Alternative OtherthanTemporaryImpairmentLossesInvestmentsPortionRecognizedinEarningsNetEquityMethodInvestmentOtherthanTemporaryImpairmentAndInvestmentImpairmentMeasurementAlternative	168000000	USD
CY2019	c	Otherthan Temporary Impairment Losses Investments Portion Recognizedin Earnings Net Equity Method Investment Otherthan Temporary Impairment And Investment Impairment Measurement Alternative OtherthanTemporaryImpairmentLossesInvestmentsPortionRecognizedinEarningsNetEquityMethodInvestmentOtherthanTemporaryImpairmentAndInvestmentImpairmentMeasurementAlternative	32000000	USD
CY2018	c	Otherthan Temporary Impairment Losses Investments Portion Recognizedin Earnings Net Equity Method Investment Otherthan Temporary Impairment And Investment Impairment Measurement Alternative OtherthanTemporaryImpairmentLossesInvestmentsPortionRecognizedinEarningsNetEquityMethodInvestmentOtherthanTemporaryImpairmentAndInvestmentImpairmentMeasurementAlternative	132000000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	420000000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1448000000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	1661000000	USD
CY2020	us-gaap	Noninterest Income NoninterestIncome	30750000000	USD
CY2019	us-gaap	Noninterest Income NoninterestIncome	26939000000	USD
CY2018	us-gaap	Noninterest Income NoninterestIncome	26292000000	USD
CY2020	us-gaap	Revenues Revenues	74298000000	USD
CY2019	us-gaap	Revenues Revenues	74286000000	USD
CY2018	us-gaap	Revenues Revenues	72854000000	USD
CY2020	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	15922000000	USD
CY2019	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	8218000000	USD
CY2018	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	7354000000	USD
CY2020	us-gaap	Debt Securities Held To Maturity Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityCreditLossExpenseReversal	7000000	USD
CY2019	us-gaap	Debt Securities Held To Maturity Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityCreditLossExpenseReversal	0	USD
CY2018	us-gaap	Debt Securities Held To Maturity Credit Loss Expense Reversal DebtSecuritiesHeldToMaturityCreditLossExpenseReversal	0	USD
CY2020	c	Financing Receivable Other Assets Credit Loss Expense Reversal FinancingReceivableOtherAssetsCreditLossExpenseReversal	7000000	USD
CY2019	c	Financing Receivable Other Assets Credit Loss Expense Reversal FinancingReceivableOtherAssetsCreditLossExpenseReversal	0	USD
CY2018	c	Financing Receivable Other Assets Credit Loss Expense Reversal FinancingReceivableOtherAssetsCreditLossExpenseReversal	0	USD
CY2020	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	113000000	USD
CY2019	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	73000000	USD
CY2018	us-gaap	Policyholder Benefits And Claims Incurred Net PolicyholderBenefitsAndClaimsIncurredNet	101000000	USD
CY2020	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	1446000000	USD
CY2019	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	92000000	USD
CY2018	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	113000000	USD
CY2020	us-gaap	Cost Of Revenue CostOfRevenue	17495000000	USD
CY2019	us-gaap	Cost Of Revenue CostOfRevenue	8383000000	USD
CY2018	us-gaap	Cost Of Revenue CostOfRevenue	7568000000	USD
CY2020	us-gaap	Labor And Related Expense LaborAndRelatedExpense	22214000000	USD
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	21433000000	USD
CY2018	us-gaap	Labor And Related Expense LaborAndRelatedExpense	21154000000	USD
CY2020	us-gaap	Occupancy Net OccupancyNet	2333000000	USD
CY2019	us-gaap	Occupancy Net OccupancyNet	2328000000	USD
CY2018	us-gaap	Occupancy Net OccupancyNet	2324000000	USD
CY2020	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	7383000000	USD
CY2019	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	7077000000	USD
CY2018	us-gaap	Communications And Information Technology CommunicationsAndInformationTechnology	7193000000	USD
CY2020	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1217000000	USD
CY2019	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1516000000	USD
CY2018	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	1545000000	USD
CY2020	us-gaap	Other Noninterest Expense OtherNoninterestExpense	10024000000	USD
CY2019	us-gaap	Other Noninterest Expense OtherNoninterestExpense	9648000000	USD
CY2018	us-gaap	Other Noninterest Expense OtherNoninterestExpense	9625000000	USD
CY2020	us-gaap	Noninterest Expense NoninterestExpense	43171000000	USD
CY2019	us-gaap	Noninterest Expense NoninterestExpense	42002000000	USD
CY2018	us-gaap	Noninterest Expense NoninterestExpense	41841000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	13632000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	23901000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	23445000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2525000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4430000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5357000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	11107000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	19471000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	18088000000	USD
CY2020	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-20000000	USD
CY2019	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-31000000	USD
CY2018	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-26000000	USD
CY2020	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
CY2019	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-27000000	USD
CY2018	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-18000000	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-20000000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-4000000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-8000000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	11087000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	19467000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	18080000000	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	40000000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	66000000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	35000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	11047000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	19401000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	18045000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	4.75
CY2019	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	8.08
CY2018	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	6.69
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.01
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.74
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.08
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	6.69
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2085800000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2249200000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2493300000	shares
CY2020	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	4.73
CY2019	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	8.04
CY2018	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	6.69
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.01
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.72
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.04
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	6.68
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2099000000.0	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2265300000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2494800000	shares
CY2020	us-gaap	Net Income Loss NetIncomeLoss	11047000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	19401000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	18045000000	USD
CY2020	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	3585000000	USD
CY2019	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	1985000000	USD
CY2018	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-1089000000	USD
CY2020	c	Other Comprehensive Income Loss Financial Liabilities Adjustment Excluding Opening Impact Netof Tax OtherComprehensiveIncomeLossFinancialLiabilitiesAdjustmentExcludingOpeningImpactNetofTax	-475000000	USD
CY2019	c	Other Comprehensive Income Loss Financial Liabilities Adjustment Excluding Opening Impact Netof Tax OtherComprehensiveIncomeLossFinancialLiabilitiesAdjustmentExcludingOpeningImpactNetofTax	-1136000000	USD
CY2018	c	Other Comprehensive Income Loss Financial Liabilities Adjustment Excluding Opening Impact Netof Tax OtherComprehensiveIncomeLossFinancialLiabilitiesAdjustmentExcludingOpeningImpactNetofTax	1113000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	1470000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	851000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-30000000	USD
CY2020	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	55000000	USD
CY2019	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	552000000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	74000000	USD
CY2020	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-250000000	USD
CY2019	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-321000000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-2362000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease After Adjustments And Tax Parent OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent	-15000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease After Adjustments And Tax Parent OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent	25000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease After Adjustments And Tax Parent OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent	-57000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	4260000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	852000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2499000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	15307000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	20253000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	15546000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	26000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	0	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-43000000	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	40000000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	66000000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	35000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	15373000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	20319000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	15538000000	USD
CY2020Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	26349000000	USD
CY2019Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	23967000000	USD
CY2020Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	283266000000	USD
CY2019Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	169952000000	USD
CY2020Q4	us-gaap	Carrying Value Of Federal Funds Sold Securities Purchased Under Agreements To Resell And Deposits Paid For Securities Borrowed CarryingValueOfFederalFundsSoldSecuritiesPurchasedUnderAgreementsToResellAndDepositsPaidForSecuritiesBorrowed	294712000000	USD
CY2019Q4	us-gaap	Carrying Value Of Federal Funds Sold Securities Purchased Under Agreements To Resell And Deposits Paid For Securities Borrowed CarryingValueOfFederalFundsSoldSecuritiesPurchasedUnderAgreementsToResellAndDepositsPaidForSecuritiesBorrowed	251322000000	USD
CY2020Q4	c	Brokerage Receivables BrokerageReceivables	44806000000	USD
CY2019Q4	c	Brokerage Receivables BrokerageReceivables	39857000000	USD
CY2020Q4	us-gaap	Debt Securities Trading Restricted DebtSecuritiesTradingRestricted	168967000000	USD
CY2019Q4	us-gaap	Debt Securities Trading Restricted DebtSecuritiesTradingRestricted	120236000000	USD
CY2020Q4	us-gaap	Trading Securities TradingSecurities	375079000000	USD
CY2019Q4	us-gaap	Trading Securities TradingSecurities	276140000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	5921000000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	8721000000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	335084000000	USD
CY2019Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	280265000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Restricted HeldToMaturitySecuritiesRestricted	547000000	USD
CY2019Q4	us-gaap	Held To Maturity Securities Restricted HeldToMaturitySecuritiesRestricted	1923000000	USD
CY2020Q4	c	Debt Securities Held To Maturity Net Of Allowance For Credit Losses DebtSecuritiesHeldToMaturityNetOfAllowanceForCreditLosses	104943000000	USD
CY2019Q4	c	Debt Securities Held To Maturity Net Of Allowance For Credit Losses DebtSecuritiesHeldToMaturityNetOfAllowanceForCreditLosses	80775000000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	1066000000	USD
CY2019Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	1162000000	USD
CY2020Q4	c	Non Marketable Equity Securities NonMarketableEquitySecurities	7332000000	USD
CY2019Q4	c	Non Marketable Equity Securities NonMarketableEquitySecurities	7523000000	USD
CY2020Q4	c	Investments Excluding Trading Securities InvestmentsExcludingTradingSecurities	447359000000	USD
CY2019Q4	c	Investments Excluding Trading Securities InvestmentsExcludingTradingSecurities	368563000000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	675883000000	USD
CY2019Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	699483000000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	24956000000	USD
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12783000000	USD
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	650927000000	USD
CY2019Q4	us-gaap	Notes Receivable Net NotesReceivableNet	686700000000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	22162000000	USD
CY2019Q4	us-gaap	Goodwill Goodwill	22126000000	USD
CY2020Q4	c	Mortgage Servicing Rights Msr Gross Carrying Amount MortgageServicingRightsMSRGrossCarryingAmount	336000000	USD
CY2019Q4	c	Mortgage Servicing Rights Msr Gross Carrying Amount MortgageServicingRightsMSRGrossCarryingAmount	495000000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4747000000	USD
CY2019Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4822000000	USD
CY2020Q4	us-gaap	Other Assets OtherAssets	110683000000	USD
CY2019Q4	us-gaap	Other Assets OtherAssets	107709000000	USD
CY2020Q4	us-gaap	Assets Assets	2260090000000	USD
CY2019Q4	us-gaap	Assets Assets	1951158000000	USD
CY2020Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	126942000000	USD
CY2019Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	98811000000	USD
CY2020Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	503213000000	USD
CY2019Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	401418000000	USD
CY2020Q4	us-gaap	Noninterest Bearing Deposit Liabilities Foreign NoninterestBearingDepositLiabilitiesForeign	100543000000	USD
CY2019Q4	us-gaap	Noninterest Bearing Deposit Liabilities Foreign NoninterestBearingDepositLiabilitiesForeign	85692000000	USD
CY2020Q4	us-gaap	Interest Bearing Deposit Liabilities Foreign InterestBearingDepositLiabilitiesForeign	549973000000	USD
CY2019Q4	us-gaap	Interest Bearing Deposit Liabilities Foreign InterestBearingDepositLiabilitiesForeign	484669000000	USD
CY2020Q4	us-gaap	Deposits Deposits	1280671000000	USD
CY2019Q4	us-gaap	Deposits Deposits	1070590000000	USD
CY2020Q4	us-gaap	Carrying Value Of Federal Funds Purchased Securities Sold Under Agreements To Repurchase And Deposits Received For Securities Loaned CarryingValueOfFederalFundsPurchasedSecuritiesSoldUnderAgreementsToRepurchaseAndDepositsReceivedForSecuritiesLoaned	199525000000	USD
CY2019Q4	us-gaap	Carrying Value Of Federal Funds Purchased Securities Sold Under Agreements To Repurchase And Deposits Received For Securities Loaned CarryingValueOfFederalFundsPurchasedSecuritiesSoldUnderAgreementsToRepurchaseAndDepositsReceivedForSecuritiesLoaned	166339000000	USD
CY2020Q4	c	Brokerage Payables BrokeragePayables	50484000000	USD
CY2019Q4	c	Brokerage Payables BrokeragePayables	48601000000	USD
CY2020Q4	us-gaap	Trading Liabilities TradingLiabilities	168027000000	USD
CY2019Q4	us-gaap	Trading Liabilities TradingLiabilities	119894000000	USD
CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	29514000000	USD
CY2019Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	45049000000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	271686000000	USD
CY2019Q4	us-gaap	Long Term Debt LongTermDebt	248760000000	USD
CY2020Q4	us-gaap	Other Liabilities OtherLiabilities	59983000000	USD
CY2019Q4	us-gaap	Other Liabilities OtherLiabilities	57979000000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	2059890000000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	1757212000000	USD
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2019Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2019Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	30000000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	30000000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	779200	shares
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	719200	shares
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	19480000000	USD
CY2019Q4	us-gaap	Preferred Stock Value PreferredStockValue	17980000000	USD
CY2019Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	6000000000	shares
CY2019Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	6000000000	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	3099763661	shares
CY2019Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	3099602856	shares
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	31000000	USD
CY2019Q4	us-gaap	Common Stock Value CommonStockValue	31000000	USD
CY2020Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	107846000000	USD
CY2019Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	107840000000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	168272000000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	165369000000	USD
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	1017674452	shares
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	985479501	shares
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	64129000000	USD
CY2019Q4	us-gaap	Treasury Stock Value TreasuryStockValue	61660000000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-32058000000	USD
CY2019Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-36318000000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	199442000000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	193242000000	USD
CY2020Q4	us-gaap	Minority Interest MinorityInterest	758000000	USD
CY2019Q4	us-gaap	Minority Interest MinorityInterest	704000000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	200200000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	193946000000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2260090000000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	1951158000000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	200200000000	USD
CY2019Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	193946000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	197074000000	USD
CY2020Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.51
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.51
CY2020Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.51
CY2020Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.51
CY2019Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2019Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.51
CY2019Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.51
CY2018Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.32
CY2018Q1	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.32
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2018Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.45
CY2020	us-gaap	Profit Loss ProfitLoss	11087000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	19467000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	18080000000	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	40000000	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	66000000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	35000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	11047000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	19401000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	18045000000	USD
CY2020	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	-20000000	USD
CY2019	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	-4000000	USD
CY2018	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	-8000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	11067000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	19405000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	18053000000	USD
CY2020	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2019	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	0	USD
CY2018	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	247000000	USD
CY2020	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	3937000000	USD
CY2019	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	3905000000	USD
CY2018	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	3754000000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2333000000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2333000000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-610000000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-51000000	USD
CY2020	c	Financing Receivable Credit Loss Expense Reversal Including Unfunded Lending Commitments FinancingReceivableCreditLossExpenseReversalIncludingUnfundedLendingCommitments	17368000000	USD
CY2019	c	Financing Receivable Credit Loss Expense Reversal Including Unfunded Lending Commitments FinancingReceivableCreditLossExpenseReversalIncludingUnfundedLendingCommitments	8310000000	USD
CY2018	c	Financing Receivable Credit Loss Expense Reversal Including Unfunded Lending Commitments FinancingReceivableCreditLossExpenseReversalIncludingUnfundedLendingCommitments	7467000000	USD
CY2020	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	1756000000	USD
CY2019	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	1474000000	USD
CY2018	us-gaap	Debt And Equity Securities Gain Loss DebtAndEquitySecuritiesGainLoss	421000000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	165000000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	32000000	USD
CY2018	us-gaap	Asset Impairment Charges AssetImpairmentCharges	132000000	USD
CY2020	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	98997000000	USD
CY2019	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	20124000000	USD
CY2018	us-gaap	Increase Decrease In Trading Securities IncreaseDecreaseInTradingSecurities	3469000000	USD
CY2020	us-gaap	Increase Decrease In Trading Liabilities IncreaseDecreaseInTradingLiabilities	48133000000	USD
CY2019	us-gaap	Increase Decrease In Trading Liabilities IncreaseDecreaseInTradingLiabilities	-24411000000	USD
CY2018	us-gaap	Increase Decrease In Trading Liabilities IncreaseDecreaseInTradingLiabilities	19135000000	USD
CY2020	us-gaap	Increase Decrease In Broker Dealer Related Receivables Payables Net IncreaseDecreaseInBrokerDealerRelatedReceivablesPayablesNet	3066000000	USD
CY2019	us-gaap	Increase Decrease In Broker Dealer Related Receivables Payables Net IncreaseDecreaseInBrokerDealerRelatedReceivablesPayablesNet	20377000000	USD
CY2018	us-gaap	Increase Decrease In Broker Dealer Related Receivables Payables Net IncreaseDecreaseInBrokerDealerRelatedReceivablesPayablesNet	-6163000000	USD
CY2020	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	-1202000000	USD
CY2019	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	909000000	USD
CY2018	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	-770000000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1012000000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-4724000000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	5791000000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	558000000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	1737000000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-984000000	USD
CY2020	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-4113000000	USD
CY2019	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-16955000000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	7559000000	USD
CY2020	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-31688000000	USD
CY2019	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-32242000000	USD
CY2018	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	18899000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-20621000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-12837000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	36952000000	USD
CY2020	us-gaap	Proceeds From Payments For Federal Funds Sold And Securities Purchased Under Agreements To Resell Net ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet	-43390000000	USD
CY2019	us-gaap	Proceeds From Payments For Federal Funds Sold And Securities Purchased Under Agreements To Resell Net ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet	19362000000	USD
CY2018	us-gaap	Proceeds From Payments For Federal Funds Sold And Securities Purchased Under Agreements To Resell Net ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet	-38206000000	USD
CY2020	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	-14249000000	USD
CY2019	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	22466000000	USD
CY2018	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	29002000000	USD
CY2020	us-gaap	Proceeds From Sale Of Loans And Leases Held For Investment ProceedsFromSaleOfLoansAndLeasesHeldForInvestment	1495000000	USD
CY2019	us-gaap	Proceeds From Sale Of Loans And Leases Held For Investment ProceedsFromSaleOfLoansAndLeasesHeldForInvestment	2878000000	USD
CY2018	us-gaap	Proceeds From Sale Of Loans And Leases Held For Investment ProceedsFromSaleOfLoansAndLeasesHeldForInvestment	4549000000	USD
CY2020	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	334900000000	USD
CY2019	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	274491000000	USD
CY2018	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	152487000000	USD
CY2020	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	146285000000	USD
CY2019	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	137173000000	USD
CY2018	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	61491000000	USD
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	124229000000	USD
CY2019	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	119051000000	USD
CY2018	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	83604000000	USD
CY2020	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2019	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	0	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	314000000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3446000000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	5336000000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3774000000	USD
CY2020	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	50000000	USD
CY2019	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	259000000	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	212000000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-116000000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-196000000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-181000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-95312000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-23374000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-73118000000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	5352000000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	5447000000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	5020000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	2995000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	1496000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	0	USD
CY2020	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	1500000000	USD
CY2019	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	1980000000	USD
CY2018	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	793000000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2925000000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	17571000000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	14433000000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	411000000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	364000000	USD
CY2018	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	482000000	USD
CY2020	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	33186000000	USD
CY2019	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	-11429000000	USD
CY2018	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	21491000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	76458000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	59134000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	60655000000	USD
CY2020	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	63402000000	USD
CY2019	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	51029000000	USD
CY2018	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	58132000000	USD
CY2020	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	210081000000	USD
CY2019	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	57420000000	USD
CY2018	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	53348000000	USD
CY2020	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	15535000000	USD
CY2019	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	12703000000	USD
CY2018	us-gaap	Repayments Of Short Term Debt RepaymentsOfShortTermDebt	12106000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	233595000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	42933000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	44528000000	USD
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-1966000000	USD
CY2019	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-908000000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-773000000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	115696000000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	5814000000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	7589000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	193919000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	188105000000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	180516000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	309615000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	193919000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	188105000000	USD
CY2020Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	26349000000	USD
CY2019Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	23967000000	USD
CY2018Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	23645000000	USD
CY2020Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	283266000000	USD
CY2019Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	169952000000	USD
CY2018Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	164460000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	309615000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	193919000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	188105000000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	4797000000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	4888000000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	4313000000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	13298000000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	28682000000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	22963000000	USD
CY2020	us-gaap	Financing Receivable Reclassification To Held For Sale FinancingReceivableReclassificationToHeldForSale	2614000000	USD
CY2019	us-gaap	Financing Receivable Reclassification To Held For Sale FinancingReceivableReclassificationToHeldForSale	5500000000	USD
CY2018	us-gaap	Financing Receivable Reclassification To Held For Sale FinancingReceivableReclassificationToHeldForSale	4200000000	USD
CY2020Q4	c	Maximum Ownership Percentage Income Recognition Upon Receipt Of Dividends MaximumOwnershipPercentageIncomeRecognitionUponReceiptOfDividends	0.20
CY2020	us-gaap	Financing Receivable Allowance For Credit Losses Policy For Uncollectible Amounts FinancingReceivableAllowanceForCreditLossesPolicyForUncollectibleAmounts	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Allowances for Credit Losses (ACL)</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Commencing January 1, 2020, Citi adopted Accounting Standards Update (ASC) 326, </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Financial Instruments—Credit Losses</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">, using the methodologies described below. For information about Citi’s accounting for loan losses prior to January 1, 2020, see “Superseded Accounting Principles” below.</span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The current expected credit losses (CECL) methodology is based on relevant information about past events, including historical experience, current conditions and reasonable and supportable (R&S) forecasts that affect the collectability of the reported financial asset balances. If the asset’s life extends </span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">beyond the R&S forecast period, then historical experience is considered over the remaining life of the assets in the ACL. The resulting ACL is adjusted in each subsequent reporting period through </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Provisions for credit losses</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> in the Consolidated Statement of Income to reflect changes in history, current conditions and forecasts as well as changes in asset positions and portfolios. ASC 326 defines the ACL as a valuation account that is deducted from the amortized cost of a financial asset to present the net amount that management expects to collect on the financial asset over its expected life. All financial assets carried at amortized cost are in the scope of ASC 326, while assets measured at fair value are excluded. See Note 13 to the Consolidated Financial Statements for a discussion of impairment on available-for-sale (AFS) securities.</span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Increases and decreases to the allowances are recorded in </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Provisions for credit losses</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. The CECL methodology utilizes a lifetime expected credit loss (ECL) measurement objective for the recognition of credit losses for held-for-investment (HFI) loans, held-to-maturity (HTM) debt securities, receivables and other financial assets measured at amortized cost at the time the financial asset is originated or acquired. Within the life of a loan or other financial asset, the methodology generally results in the earlier recognition of the provision for credit losses and the related ACL than prior U.S. GAAP.</span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Estimation of ECLs requires Citi to make assumptions regarding the likelihood and severity of credit loss events and their impact on expected cash flows, which drive the probability of default (PD), loss given default (LGD) and exposure at default (EAD) models and, where Citi discounts the ECL, using discounting techniques for certain products. Where the asset’s life extends beyond the R&S forecast period, Citi considers historical experience over the remaining life of the assets in estimating the ACL. </span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Citi uses a multitude of variables in its macroeconomic forecast as part of its calculation of both the qualitative and quantitative components of the ACL, including both domestic and international variables for its global portfolios and exposures. Citi’s forecasts of the U.S. unemployment rate and U.S. Real GDP growth rate represent the key macroeconomic variables that most significantly affect its estimate of its consumer and corporate ACLs. Under the quantitative base scenario, Citi’s 4Q’20 forecasts are for U.S. unemployment to continue to improve as the U.S. moves past the peak of the health and economic crisis. The downside scenario incorporates more adverse economic conditions and subsequently higher unemployment rates and slower GDP recovery.</span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The following are the main factors and interpretations that Citi considers when estimating the ACL under the CECL methodology: </span></div><div style="text-indent:18pt"><span><br/></span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">The most important reasons for the 2020 change in the ACL since the adoption of CECL on January 1, 2020 are the pandemic and the resulting economic recessions, which led to higher unemployment and lower GDP forecasts than were expected at the beginning of the year; the impact of government stimulus and relief programs; and portfolio changes and lower loan balances resulting from changed customer spending patterns.</span></div><div style="display:inline-block;vertical-align:top;width:46.666%"><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">CECL reserves are estimated over the contractual term of the financial asset, which is adjusted for expected prepayments. Expected extensions are generally not considered unless the option to extend the loan cannot be canceled unilaterally by Citi. Modifications are also not considered, unless Citi has a reasonable expectation that it will execute a troubled debt restructuring (TDR).</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Credit enhancements that are not freestanding (such as those that are included in the original terms of the contract or those executed in conjunction with the lending transaction) are considered loss mitigants for purposes of CECL reserve estimation. </span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">For unconditionally cancelable accounts such as credit cards, reserves are based on the expected life of the balance as of the evaluation date (assuming no further charges) and do not include any undrawn commitments that are unconditionally cancelable. Reserves are included for undrawn commitments for accounts that are not unconditionally cancelable (such as letters of credit and corporate loan commitments, HELOCs, undrawn mortgage loan commitments and financial guarantees).</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">CECL models are designed to be economically sensitive. They utilize the macroeconomic forecasts provided by Citi’s economic forecasting team (EFT) that are approved by senior management. Analysis is performed and documented to determine the necessary qualitative management adjustment (QMA) to capture forward-looking macroeconomic expectations and model uncertainty.</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">The portion of the forecast that reflects the EFT’s reasonable and supportable (R&S) period indicates the maximum length of time its models can produce a R&S macroeconomic forecast, after which mean reversion reflecting historical loss experience is used for the remaining life of the loan to estimate expected credit losses. For the loss forecast, businesses consume the macroeconomic forecast as determined to be appropriate and justifiable.</span></div><div><span><br/></span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Citi’s ability to forecast credit losses over the reasonable and supportable (R&S) period is based on the ability to forecast economic activity over a reasonable and supportable time window.</span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The R&S period reflects the overall ability to have a reasonable and supportable forecast of credit loss based on economic forecasts.</span></div><div style="text-indent:18pt"><span><br/></span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">The loss models consume all or a portion of the R&S economic forecast and then revert to historical loss experience. The R&S forecast period for consumer loans is 13 quarters and, in most cases, reverts to historically based loss experience either immediately or using a straight-line approach thereafter, while the R&S period for wholesale is nine quarters with an additional straight-line reversion period of three quarters for ECL parameters.</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">The ACL incorporates provisions for accrued interest on products that are not subject to a non-accrual and timely write-off policy (e.g., cards and Ready Credit, etc.).</span></div></div><div style="display:inline-block;max-width:6.666%;min-width:5.666%;vertical-align:top"/><div style="display:inline-block;vertical-align:top;width:46.668%"><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">The reserves for TDRs are calculated using the discounted cash flow method and consider appropriate macroeconomic forecast data for the exposure type. For TDR loans that are collateral dependent, the ACL is based on the fair value of the collateral.</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Citi uses the most recent available information to inform its macroeconomic forecasts, allowing sufficient time for analysis of the results and corresponding approvals. Key variables are reviewed for significant changes through year end and changes to portfolio positions are reflected in the ACL.</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%;padding-left:14.5pt">Reserves are calculated at an appropriately granular level and on a pooled basis where financial assets share risk characteristics. At a minimum, reserves are calculated at a portfolio level (product and country). Where a financial asset does not share risk characteristics with any of the pools, it is evaluated for credit losses individually.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Quantitative and Qualitative Components of the ACL</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The loss likelihood and severity models use both internal and external information and are sensitive to forecasts of different macroeconomic conditions. For the quantitative component, Citi uses a single forward-looking macroeconomic forecast, complemented by the qualitative component that reflects economic uncertainty due to a different possible more adverse scenario for estimating the ACL. Estimates of these ECLs are based upon (i) Citigroup’s internal system of credit risk ratings; (ii) historical default and loss data, including comprehensive internal history and rating agency information regarding default rates and internal data on the severity of losses in the event of default; and (iii) a R&S forecast of future macroeconomic conditions. ECL is determined primarily by utilizing models for the borrowers’ PD, LGD and EAD. Adjustments may be made to this data, including (i) statistically calculated estimates to cover the historical fluctuation of the default rates over the credit cycle, the historical variability of loss severity among defaulted loans and the degree to which there are large obligor concentrations in the global portfolio, and (ii) adjustments made for specifically known items, such as current environmental factors and credit trends. </span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Any adjustments needed to the modeled expected losses in the quantitative calculations are addressed through a qualitative adjustment. The qualitative adjustment considers, among other things: the uncertainty of forward-looking scenarios based on the likelihood and severity of a possible recession; the uncertainty of economic conditions related to an alternative downside scenario; certain portfolio characteristics and concentrations; collateral coverage; model limitations; idiosyncratic events; and other relevant criteria under banking supervisory guidance for loan loss reserves. The qualitative adjustment also reflects the estimated impact of the pandemic on the economic forecasts and the impact on credit loss estimates. The total ACL is composed of the quantitative and qualitative components.</span></div><div style="text-indent:18pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Consumer Loans</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">For consumer loans, most portfolios including North America cards, mortgages and personal installment loans (PILs) are covered by the PD, LGD and EAD loss forecasting models. </span></div></div><div style="display:inline-block;vertical-align:top;width:46.666%"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Some smaller international portfolios are covered by econometric models where the gross credit loss (GCL) rate is forecasted. The modeling of all retail products is performed by examining risk drivers for a given portfolio; these drivers relate to exposures with similar credit risk characteristics and consider past events, current conditions and R&S forecasts. Under the PD x LGD x EAD approach, GCLs and recoveries are captured on an undiscounted basis. Citi incorporates expected recoveries on loans into its reserve estimate, including expected recoveries on assets previously written off. </span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">CECL defines the exposure’s expected life as the remaining contractual maturity including any expected prepayments. Subsequent changes to the contractual terms that are the result of a re-underwriting are not included in the loan’s expected CECL life.</span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Citi does not establish reserves for the uncollectible accrued interest on non-revolving consumer products, such as mortgages and installment loans, which are subject to a non-accrual and timely write-off policy. As such, only the principal balance is subject to the CECL reserve methodology and interest does not attract a further reserve. FAS 91-deferred origination costs and fees related to new account originations are amortized within a 12-month period, and an ACL is provided for components in the scope of the ASC.</span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Separate valuation allowances are determined for impaired smaller-balance homogeneous loans whose terms have been modified in a TDR. Long-term modification programs, and short-term (less than 12 months) modifications that provide concessions (such as interest rate reductions) to borrowers in financial difficulty, are reported as TDRs. In addition, loan modifications that involve a trial period are reported as TDRs at the start of the trial period. The ACL for TDRs is determined using a discounted cash flow (DCF) approach. When a DCF approach is used, the initial allowance for ECLs is calculated as the expected contractual cash flows discounted at the loan’s original effective interest rate. DCF techniques are applied only for consumer loans classified as TDR loan exposures.</span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">For cards, Citi uses the payment rate approach, which leverages payment rate curves, to determine the payments that should be applied to liquidate the end-of-period balance (CECL balance) in the estimation of EAD. The payment rate approach uses customer payment behavior (payment rate) to establish the portion of the CECL balance that will be paid each month. These payment rates are defined as the percentage of principal payments received in the respective month divided by the prior month’s billed principal balance. The liquidation (CECL payment) amount for each forecast period is determined by multiplying the CECL balance by that period’s forecasted payment rate. The cumulative sum of these payments less the CECL balance produces the balance liquidation curve. Citi does not apply a non-accrual policy to credit card receivables; rather, they are subject to full charge-off at 180 days past due. As such, the entire customer balance up until write-off, including accrued interest and fees, will be subject to the CECL reserve methodology. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Corporate Loans and HTM Securities</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Citi records allowances for credit losses on all financial assets carried at amortized cost that are in the scope of CECL, </span></div></div><div style="display:inline-block;max-width:6.666%;min-width:5.666%;vertical-align:top"/><div style="display:inline-block;vertical-align:top;width:46.668%"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">including corporate loans classified as HFI and HTM debt securities. Discounting techniques are applied for corporate loans classified as HFI and HTM securities and non-accrual/TDR loan exposures. All cash flows are fully discounted to the reporting date. The ACL includes Citi’s estimate of all credit losses expected to be incurred over the estimated full contractual life of the financial asset. The contractual life of the financial asset does not include expected extensions, renewals or modifications, except for instances where the Company reasonably expects to extend the tenor of the financial asset pursuant to a future TDR Where Citi has an unconditional option to extend the contractual term, Citi does not consider the potential extension in determining the contractual term; however, where the borrower has the sole right to exercise the extension option without Citi’s approval, Citi does consider the potential extension in determining the contractual term. The decrease in credit losses under CECL at the date of adoption on January 1, 2020, compared with the prior incurred loss methodology, is largely due to more precise contractual maturities that result in shorter remaining tenors, the incorporation of recoveries and use of more specific historical loss data based on an increase in portfolio segmentation across industries and geographies.</span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company primarily bases its ACL on models that assess the likelihood and severity of credit events and their impact on cash flows under R&S forecasted economic scenarios. Allowances consider the probability of the borrower’s default, the loss the Company would incur upon default and the borrower’s exposure at default. Such models discount the present value of all future cash flows, using the asset’s effective interest rate (EIR). Citi applies a more simplified approach based on historical loss rates to certain exposures recorded in </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Other assets</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> and certain loan exposures in the private bank.</span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company considers the risk of nonpayment to be zero for U.S. Treasuries and U.S. government-sponsored agency guaranteed mortgage-backed securities (MBS) and, as such, Citi does not have an ACL for these securities. For all other HTM debt securities, ECLs are estimated using PD models and discounting techniques, which incorporate assumptions regarding the likelihood and severity of credit losses. For structured securities, specific models use relevant assumptions for the underlying collateral type. A discounting approach is applied to HTM direct obligations of a single issuer, similar to that used for corporate HFI loans.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Other Financial Assets with Zero Expected Credit Losses</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">For certain financial assets, zero expected credit losses will be recognized where the expectation of nonpayment of the amortized cost basis is zero, based on there being no history of loss and the nature of the receivables.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Secured Financing Transactions</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Most of Citi’s reverse repurchase agreements, securities borrowing arrangements and margin loans require that the borrower continually adjust the amount of the collateral securing Citi’s interest, primarily resulting from changes in the fair value of such collateral. In such arrangements, ACLs are recorded based only on the amount by which the asset’s amortized cost basis exceeds the fair value of the collateral. No ACLs are recorded where the fair value of the collateral is </span></div></div><div style="display:inline-block;vertical-align:top;width:46.666%"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">equal to or exceeds the asset’s amortized cost basis, as Citi does not expect to incur credit losses on such well-collateralized exposures. For certain margin loans presented in </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Loans</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> on the Consolidated Balance Sheet, credit losses are estimated using the same approach as corporate loans. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Accrued Interest</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">CECL permits entities to make an accounting policy election not to reserve for interest, if the entity has a policy in place that will result in timely reversal or write-off of interest. However, when a non-accrual or timely charge-off policy is not applied, an ACL is recognized on accrued interest. For HTM debt securities, Citi established a non-accrual policy that results in timely write-off of accrued interest. For corporate loans, where a timely charge-off policy is used, Citi has elected to recognize an ACL on accrued interest receivable. The LGD models for corporate loans include an adjustment for estimated accrued interest.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Reasonably Expected TDRs</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">For corporate loans, the reasonable expectation of TDR concept requires that the contractual life over which ECLs are estimated be extended when a TDR that results in a tenor extension is reasonably expected. Reasonably expected TDRs are included in the life of the asset. A discounting technique or collateral-dependent practical expedient is used for non-accrual and TDR loan exposures that do not share risk characteristics with other loans and are individually assessed. Loans modified in accordance with the CARES Act and bank regulatory guidance are not classified as TDRs.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Purchased Credit Deteriorated (PCD) Assets</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">ASC 326 requires entities that have acquired financial assets (such as loans and HTM securities) with an intent to hold, to evaluate whether those assets have experienced a more-than-insignificant deterioration in credit quality since origination. These assets are subject to specialized accounting at initial recognition under CECL. Subsequent measurement of PCD assets will remain consistent with other purchased or originated assets, i.e., non-PCD assets. CECL introduces the notion of PCD assets, which replaces purchased credit impaired (PCI) accounting under prior U.S. GAAP.</span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">CECL requires the estimation of credit losses to be performed on a pool basis unless a PCD asset does not share characteristics with any pool. If certain PCD assets do not meet the conditions for aggregation, those PCD assets should be accounted for separately. This determination must be made at the date the PCD asset is purchased. In estimating ECLs from day 2 onward, pools can potentially be reassembled based upon similar risk characteristics. When PCD assets are pooled, Citi determines the amount of the initial ACL at the pool level. The amount of the initial ACL for a PCD asset represents the portion of the total discount at acquisition that relates to credit and is recognized as a “gross-up” of the purchase price to arrive at the PCD asset’s (or pool’s) amortized cost. Any difference between the unpaid principal balance and the amortized cost is considered to be related to non-credit factors and results in a discount or premium, which is amortized to interest income over the life of the individual asset (or pool). Direct expenses incurred related to the </span></div></div><div style="display:inline-block;max-width:6.666%;min-width:5.666%;vertical-align:top"/><div style="display:inline-block;vertical-align:top;width:46.668%"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">acquisition of PCD assets and other assets and liabilities in a business combination are expensed as incurred. Subsequent accounting for acquired PCD assets is the same as the accounting for originated assets; changes in the allowance are recorded in </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Provisions for credit losses</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Consumer</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Citi does not purchase whole portfolios of PCD assets in its retail businesses. However, there may be a small portion of a purchased portfolio that is identified as PCD at the purchase date. Interest income recognition does not vary between PCD and non-PCD assets. A consumer financial asset is considered to be more-than-insignificantly credit deteriorated if it is more than 30 days past due at the purchase date.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Corporate</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Citi generally classifies wholesale loans and debt securities classified HTM or AFS as PCD when both of the following criteria are met: (i) the purchase price discount is at least 10% of par and (ii) the purchase date is more than 90 days after the origination or issuance date. Citi classifies HTM beneficial interests rated AA- and lower obtained at origination from certain securitization transactions as PCD when there is a significant difference (i.e., 10% or greater) between contractual cash flows, adjusted for prepayments, and expected cash flows at the date of recognition.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Reserve Estimates and Policies</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Management provides reserves for an estimate of lifetime ECLs in the funded loan portfolio on the Consolidated Balance Sheet in the form of an ACL. These reserves are established in accordance with Citigroup’s credit reserve policies, as approved by the Audit Committee of the Citigroup Board of Directors. Citi’s Chief Risk Officer and Chief Financial Officer review the adequacy of the credit loss reserves each quarter with risk management and finance representatives for each applicable business area. Applicable business areas include those having classifiably managed portfolios, where internal credit risk ratings are assigned (primarily ICG) and delinquency managed portfolios (primarily GCB) or modified consumer loans, where concessions were granted due to the borrowers’ financial difficulties. The aforementioned representatives for these business areas present recommended reserve balances for their funded and unfunded lending portfolios along with supporting quantitative and qualitative data discussed below:</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Estimated credit losses for non-performing, non-homogeneous exposures within a business line’s classifiably managed portfolio and impaired smaller-balance homogeneous loans whose terms have been modified due to the borrowers’ financial difficulties, where it was determined that a concession was granted to the borrower. </span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Consideration may be given to the following, as appropriate, when determining this estimate: (i) the present value of expected future cash flows discounted at the loan’s original effective rate, (ii) the borrower’s overall financial condition, resources and payment record and (iii) the prospects for support from financially responsible guarantors or the realizable value of any collateral. In the determination of the </span></div></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">ACL for TDRs, management considers a combination of historical re-default rates, the current economic environment and the nature of the modification program when forecasting expected cash flows. When impairment is measured based on the present value of expected future cash flows, the entire change in present value is recorded in </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Provisions for credit losses</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Estimated credit losses in the delinquency-managed portfolios for performing exposures.</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">In addition, risk management and finance representatives who cover business areas with delinquency-managed portfolios containing smaller-balance homogeneous loans present their recommended reserve balances based on leading credit indicators, including loan delinquencies and changes in portfolio size as well as economic trends, including current and future housing prices, unemployment, length of time in foreclosure, costs to sell and GDP. This methodology is applied separately for each product within each geographic region in which these portfolios exist. This evaluation process is subject to numerous estimates and judgments. The frequency of default, risk ratings, loss recovery rates, size and diversity of individual large credits and ability of borrowers with foreign currency obligations to obtain the foreign currency necessary for orderly debt servicing, among other things, are all taken into account during this review. Changes in these estimates could have a direct impact on the credit costs in any period and could result in a change in the allowance.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Allowance for Unfunded Lending Commitments</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Credit loss reserves are recognized on all off-balance sheet commitments that are not unconditionally cancelable. Corporate loan EAD models include an incremental usage factor (or credit conversion factor) to estimate ECLs on amounts undrawn at the reporting date. Off-balance sheet commitments include unfunded exposures, revolving facilities, securities underwriting commitments, letters of credit, HELOCs and financial guarantees, which excludes performance guarantees. This reserve is classified on the Consolidated Balance Sheet in </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Other liabilities</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">. Changes to the allowance for unfunded lending commitments are recorded in </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Provision for credit losses on unfunded lending commitments</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">.</span></div>
CY2020	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Instrument-specific Credit Risk</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Citi presents separately in </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">AOCI</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk, when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments. Accordingly, the change in fair value of liabilities for which the fair value option was elected, related to changes in Citigroup’s own credit spreads, is presented in </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">AOCI</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">.</span></div>
CY2020	us-gaap	Use Of Estimates UseOfEstimates	Use of EstimatesManagement must make estimates and assumptions that affect the Consolidated Financial Statements and the related Notes to the Consolidated Financial Statements. Such estimates are used in connection with certain fair value measurements. See Note 24 to the Consolidated Financial Statements for further discussions on estimates used in the determination of fair value. Moreover, estimates are significant in determining the amounts of other-than-temporary impairments, impairments of goodwill and other intangible assets, provisions for probable losses that may arise from credit-related exposures and probable and estimable losses related to litigation and regulatory proceedings, and income taxes. While management makes its best judgment, actual amounts or results could differ from those estimates.
CY2020Q1	c	Financing Receivable Allowance For Credit Loss Percentage Increase Decrease FinancingReceivableAllowanceForCreditLossPercentageIncreaseDecrease	0.29
CY2017Q4	c	Tax Cuts And Jobs Act Of2017 Complete Including Provisional Accounting Provisional Income Tax Expense Benefit TaxCutsAndJobsActOf2017CompleteIncludingProvisionalAccountingProvisionalIncomeTaxExpenseBenefit	22600000000	USD
CY2018Q4	us-gaap	Tax Cuts And Jobs Act Of2017 Income Tax Expense Benefit TaxCutsAndJobsActOf2017IncomeTaxExpenseBenefit	-94000000	USD
CY2018Q4	c	Tax Cutsand Jobs Actof2017 Change In Tax Rate Deferred Tax Asset Valuation Allowance Income Tax Expense Benefit TaxCutsandJobsActof2017ChangeInTaxRateDeferredTaxAssetValuationAllowanceIncomeTaxExpenseBenefit	-1200000000	USD
CY2018Q4	us-gaap	Tax Cuts And Jobs Act Of2017 Change In Tax Rate Income Tax Expense Benefit TaxCutsAndJobsActOf2017ChangeInTaxRateIncomeTaxExpenseBenefit	200000000	USD
CY2018Q4	c	Tax Cutsand Jobs Actof2017 Transition Taxfor Accumulated Foreign Earnings Income Tax Expense Benefit TaxCutsandJobsActof2017TransitionTaxforAccumulatedForeignEarningsIncomeTaxExpenseBenefit	900000000	USD
CY2018Q1	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	4000000000	USD
CY2020	us-gaap	Disposal Group Including Discontinued Operation Gross Profit Loss DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss	0	USD
CY2019	us-gaap	Disposal Group Including Discontinued Operation Gross Profit Loss DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss	0	USD
CY2018	us-gaap	Disposal Group Including Discontinued Operation Gross Profit Loss DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss	0	USD
CY2020	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-20000000	USD
CY2019	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-31000000	USD
CY2018	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-26000000	USD
CY2020	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
CY2019	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-27000000	USD
CY2018	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-18000000	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-20000000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-4000000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-8000000	USD
CY2020	us-gaap	Revenues Revenues	74298000000	USD
CY2019	us-gaap	Revenues Revenues	74286000000	USD
CY2018	us-gaap	Revenues Revenues	72854000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2525000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4430000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5357000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	11107000000	USD

CY2020

dei

Entity Central Index Key

EntityCentralIndexKey

0000831001

CY2020

dei

Amendment Flag

AmendmentFlag

false

CY2020

dei

Document Fiscal Year Focus

DocumentFiscalYearFocus

2020

CY2020

dei

Document Fiscal Period Focus

DocumentFiscalPeriodFocus

FY

CY2019

us-gaap

Accounting Standards Update Extensible List

AccountingStandardsUpdateExtensibleList

us-gaap:AccountingStandardsUpdate201613Member

CY2019

us-gaap

Change In Accounting Principle Type Extensible List

ChangeInAccountingPrincipleTypeExtensibleList

us-gaap:ChangeInAccountingPrincipleMember

CY2020Q4

us-gaap

Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List

OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList

us-gaap:OtherAssets

CY2019Q4

us-gaap

Operating Lease Right Of Use Asset Statement Of Financial Position Extensible List

OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList

us-gaap:OtherAssets

CY2020

dei

Entity Interactive Data Current

EntityInteractiveDataCurrent

Yes

CY2020

dei

Entity Well Known Seasoned Issuer

EntityWellKnownSeasonedIssuer

No

CY2020

dei

Entity Voluntary Filers

EntityVoluntaryFilers

No

CY2020

dei

Entity Current Reporting Status

EntityCurrentReportingStatus

Yes

CY2020Q4

us-gaap

Operating Lease Liability Statement Of Financial Position Extensible List

OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList

us-gaap:OtherLiabilities

CY2019Q4

us-gaap

Operating Lease Liability Statement Of Financial Position Extensible List

OperatingLeaseLiabilityStatementOfFinancialPositionExtensibleList

us-gaap:OtherLiabilities

CY2020

dei

Document Type

DocumentType

10-K

CY2020

dei

Document Annual Report

DocumentAnnualReport

true

CY2020

dei

Document Period End Date

DocumentPeriodEndDate

2020-12-31

CY2020

dei

Current Fiscal Year End Date

CurrentFiscalYearEndDate

--12-31

CY2020

dei

Document Transition Report

DocumentTransitionReport

false

CY2020

dei

Entity File Number

EntityFileNumber

1-9924

CY2020

dei

Entity Registrant Name

EntityRegistrantName

Citigroup Inc

CY2020

dei

Entity Incorporation State Country Code

EntityIncorporationStateCountryCode

DE

CY2020

dei

Entity Tax Identification Number

EntityTaxIdentificationNumber

52-1568099

CY2020

dei

Entity Address Address Line1

EntityAddressAddressLine1

388 Greenwich Street,

CY2020

dei

Entity Address City Or Town

EntityAddressCityOrTown

New York

CY2020

dei

Entity Address State Or Province

EntityAddressStateOrProvince

NY

CY2020

dei

Entity Address Postal Zip Code

EntityAddressPostalZipCode

10013

CY2020

dei

City Area Code

CityAreaCode

212

CY2020

dei

Local Phone Number

LocalPhoneNumber

559-1000

CY2020

dei

Entity Filer Category

EntityFilerCategory

Large Accelerated Filer

CY2020

dei

Entity Small Business

EntitySmallBusiness

false

CY2020

dei

Entity Emerging Growth Company

EntityEmergingGrowthCompany

false

CY2020

dei

Icfr Auditor Attestation Flag

IcfrAuditorAttestationFlag

true

CY2020

dei

Entity Shell Company

EntityShellCompany

false

CY2020Q2

dei

Entity Public Float

EntityPublicFloat

106200000000

USD

CY2021Q1

dei

Entity Common Stock Shares Outstanding

EntityCommonStockSharesOutstanding

2087317952

shares

CY2020

us-gaap

Interest And Dividend Income Operating

InterestAndDividendIncomeOperating

58089000000

USD

CY2019

us-gaap

Interest And Dividend Income Operating

InterestAndDividendIncomeOperating

76510000000

USD

CY2018

us-gaap

Interest And Dividend Income Operating

InterestAndDividendIncomeOperating

70828000000

USD

CY2020

us-gaap

Interest Expense

InterestExpense

14541000000

USD

CY2019

us-gaap

Interest Expense

InterestExpense

29163000000

USD

CY2018

us-gaap

Interest Expense

InterestExpense

24266000000

USD

CY2020

us-gaap

Interest Income Expense Net

InterestIncomeExpenseNet

43548000000

USD

CY2019

us-gaap

Interest Income Expense Net

InterestIncomeExpenseNet

47347000000

USD

CY2018

us-gaap

Interest Income Expense Net

InterestIncomeExpenseNet

46562000000

USD

CY2020

us-gaap

Investment Banking Advisory Brokerage And Underwriting Fees And Commissions

InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions

11385000000

USD

CY2019

us-gaap

Investment Banking Advisory Brokerage And Underwriting Fees And Commissions

InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions

11746000000

USD

CY2018

us-gaap

Investment Banking Advisory Brokerage And Underwriting Fees And Commissions

InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions

11857000000

USD

CY2020

us-gaap

Principal Transactions Revenue

PrincipalTransactionsRevenue

13885000000

USD

CY2019

us-gaap

Principal Transactions Revenue

PrincipalTransactionsRevenue

8892000000

USD

CY2018

us-gaap

Principal Transactions Revenue

PrincipalTransactionsRevenue

8905000000

USD

CY2020

c

Administration And Other Fiduciary Fees

AdministrationAndOtherFiduciaryFees

3472000000

USD

CY2019

c

Administration And Other Fiduciary Fees

AdministrationAndOtherFiduciaryFees

3411000000

USD

CY2018

c

Administration And Other Fiduciary Fees

AdministrationAndOtherFiduciaryFees

3580000000

USD

CY2020

us-gaap

Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments

MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments

1756000000

USD

CY2019

us-gaap

Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments

MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments

1474000000

USD

CY2018

us-gaap

Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments

MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments

421000000

USD

CY2020

c

Impairment Of Investments And Equity Method Investment Other Than Temporary Impairment

ImpairmentOfInvestmentsAndEquityMethodInvestmentOtherThanTemporaryImpairment

165000000

USD

CY2019

c

Impairment Of Investments And Equity Method Investment Other Than Temporary Impairment

ImpairmentOfInvestmentsAndEquityMethodInvestmentOtherThanTemporaryImpairment

32000000

USD

CY2018

c

Impairment Of Investments And Equity Method Investment Other Than Temporary Impairment

ImpairmentOfInvestmentsAndEquityMethodInvestmentOtherThanTemporaryImpairment

132000000

USD

CY2020

us-gaap

Debt Securities Available For Sale Change In Present Value Expense Reversal

DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal

3000000

USD

CY2019

us-gaap

Debt Securities Available For Sale Change In Present Value Expense Reversal

DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal

0

USD

CY2018

us-gaap

Debt Securities Available For Sale Change In Present Value Expense Reversal

DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal

0

USD

CY2020

c

Otherthan Temporary Impairment Losses Investments Portion Recognizedin Earnings Net Equity Method Investment Otherthan Temporary Impairment And Investment Impairment Measurement Alternative

OtherthanTemporaryImpairmentLossesInvestmentsPortionRecognizedinEarningsNetEquityMethodInvestmentOtherthanTemporaryImpairmentAndInvestmentImpairmentMeasurementAlternative

168000000

USD

CY2019

c

Otherthan Temporary Impairment Losses Investments Portion Recognizedin Earnings Net Equity Method Investment Otherthan Temporary Impairment And Investment Impairment Measurement Alternative

OtherthanTemporaryImpairmentLossesInvestmentsPortionRecognizedinEarningsNetEquityMethodInvestmentOtherthanTemporaryImpairmentAndInvestmentImpairmentMeasurementAlternative

32000000

USD

CY2018

c

Otherthan Temporary Impairment Losses Investments Portion Recognizedin Earnings Net Equity Method Investment Otherthan Temporary Impairment And Investment Impairment Measurement Alternative

OtherthanTemporaryImpairmentLossesInvestmentsPortionRecognizedinEarningsNetEquityMethodInvestmentOtherthanTemporaryImpairmentAndInvestmentImpairmentMeasurementAlternative

132000000

USD

CY2020

us-gaap

Other Nonoperating Income Expense

OtherNonoperatingIncomeExpense

420000000

USD

CY2019

us-gaap

Other Nonoperating Income Expense

OtherNonoperatingIncomeExpense

1448000000

USD

CY2018

us-gaap

Other Nonoperating Income Expense

OtherNonoperatingIncomeExpense

1661000000

USD

CY2020

us-gaap

Noninterest Income

NoninterestIncome

30750000000

USD

CY2019

us-gaap

Noninterest Income

NoninterestIncome

26939000000

USD

CY2018

us-gaap

Noninterest Income

NoninterestIncome

26292000000

USD

CY2020

us-gaap

Revenues

74298000000

USD

CY2019

us-gaap

Revenues

74286000000

USD

CY2018

us-gaap

Revenues

72854000000

USD

CY2020

us-gaap

Provision For Loan Losses Expensed

ProvisionForLoanLossesExpensed

15922000000

USD

CY2019

us-gaap

Provision For Loan Losses Expensed

ProvisionForLoanLossesExpensed

8218000000

USD

CY2018

us-gaap

Provision For Loan Losses Expensed

ProvisionForLoanLossesExpensed

7354000000

USD

CY2020

us-gaap

Debt Securities Held To Maturity Credit Loss Expense Reversal

DebtSecuritiesHeldToMaturityCreditLossExpenseReversal

7000000

USD

CY2019

us-gaap

Debt Securities Held To Maturity Credit Loss Expense Reversal

DebtSecuritiesHeldToMaturityCreditLossExpenseReversal

0

USD

CY2018

us-gaap

Debt Securities Held To Maturity Credit Loss Expense Reversal

DebtSecuritiesHeldToMaturityCreditLossExpenseReversal

0

USD

CY2020

c

Financing Receivable Other Assets Credit Loss Expense Reversal

FinancingReceivableOtherAssetsCreditLossExpenseReversal

7000000

USD

CY2019

c

Financing Receivable Other Assets Credit Loss Expense Reversal

FinancingReceivableOtherAssetsCreditLossExpenseReversal

0

USD

CY2018

c

Financing Receivable Other Assets Credit Loss Expense Reversal

FinancingReceivableOtherAssetsCreditLossExpenseReversal

0

USD

CY2020

us-gaap

Policyholder Benefits And Claims Incurred Net

PolicyholderBenefitsAndClaimsIncurredNet

113000000

USD

CY2019

us-gaap

Policyholder Benefits And Claims Incurred Net

PolicyholderBenefitsAndClaimsIncurredNet

73000000

USD

CY2018

us-gaap

Policyholder Benefits And Claims Incurred Net

PolicyholderBenefitsAndClaimsIncurredNet

101000000

USD

CY2020

us-gaap

Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal

OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal

1446000000

USD

CY2019

us-gaap

Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal

OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal

92000000

USD

CY2018

us-gaap

Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal

OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal

113000000

USD

CY2020

us-gaap

Cost Of Revenue

CostOfRevenue

17495000000

USD

CY2019

us-gaap

Cost Of Revenue

CostOfRevenue

8383000000

USD

CY2018

us-gaap

Cost Of Revenue

CostOfRevenue

7568000000

USD

CY2020

us-gaap

Labor And Related Expense

LaborAndRelatedExpense

22214000000

USD

CY2019

us-gaap

Labor And Related Expense

LaborAndRelatedExpense

21433000000

USD

CY2018

us-gaap

Labor And Related Expense

LaborAndRelatedExpense

21154000000

USD

CY2020

us-gaap

Occupancy Net

OccupancyNet

2333000000

USD

CY2019

us-gaap

Occupancy Net

OccupancyNet

2328000000

USD

CY2018

us-gaap

Occupancy Net

OccupancyNet

2324000000

USD

CY2020

us-gaap

Communications And Information Technology

CommunicationsAndInformationTechnology

7383000000

USD

CY2019

us-gaap

Communications And Information Technology

CommunicationsAndInformationTechnology

7077000000

USD

CY2018

us-gaap

Communications And Information Technology

CommunicationsAndInformationTechnology

7193000000

USD

CY2020

us-gaap

Marketing And Advertising Expense

MarketingAndAdvertisingExpense

1217000000

USD

CY2019

us-gaap

Marketing And Advertising Expense

MarketingAndAdvertisingExpense

1516000000

USD

CY2018

us-gaap

Marketing And Advertising Expense

MarketingAndAdvertisingExpense

1545000000

USD

CY2020

us-gaap

Other Noninterest Expense

OtherNoninterestExpense

10024000000

USD

CY2019

us-gaap

Other Noninterest Expense

OtherNoninterestExpense

9648000000

USD

CY2018

us-gaap

Other Noninterest Expense

OtherNoninterestExpense

9625000000

USD

CY2020

us-gaap

Noninterest Expense

NoninterestExpense

43171000000

USD

CY2019

us-gaap

Noninterest Expense

NoninterestExpense

42002000000

USD

CY2018

us-gaap

Noninterest Expense

NoninterestExpense

41841000000

USD

CY2020

us-gaap

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

13632000000

USD

CY2019

us-gaap

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

23901000000

USD

CY2018

us-gaap

Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest

IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest

23445000000

USD

CY2020

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

2525000000

USD

CY2019

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

4430000000

USD

CY2018

us-gaap

Income Tax Expense Benefit

IncomeTaxExpenseBenefit

5357000000

USD

CY2020

us-gaap

Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest

IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

11107000000

USD

CY2019

us-gaap

Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest

IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

19471000000

USD

CY2018

us-gaap

Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest

IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest

18088000000

USD

CY2020

us-gaap

Discontinued Operation Income Loss From Discontinued Operation Before Income Tax

DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax

-20000000

USD

CY2019

us-gaap

Discontinued Operation Income Loss From Discontinued Operation Before Income Tax

DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax

-31000000

USD

CY2018

us-gaap

Discontinued Operation Income Loss From Discontinued Operation Before Income Tax

DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax

-26000000

USD

CY2020

us-gaap

Discontinued Operation Tax Effect Of Discontinued Operation

DiscontinuedOperationTaxEffectOfDiscontinuedOperation

0

USD

CY2019

us-gaap

Discontinued Operation Tax Effect Of Discontinued Operation

DiscontinuedOperationTaxEffectOfDiscontinuedOperation

-27000000

USD

CY2018

us-gaap

Discontinued Operation Tax Effect Of Discontinued Operation

DiscontinuedOperationTaxEffectOfDiscontinuedOperation

-18000000

USD

CY2020

us-gaap

Income Loss From Discontinued Operations Net Of Tax

IncomeLossFromDiscontinuedOperationsNetOfTax

-20000000

USD

CY2019

us-gaap

Income Loss From Discontinued Operations Net Of Tax

IncomeLossFromDiscontinuedOperationsNetOfTax

-4000000

USD

CY2018

us-gaap

Income Loss From Discontinued Operations Net Of Tax

IncomeLossFromDiscontinuedOperationsNetOfTax

-8000000

USD

CY2020

us-gaap

Profit Loss

ProfitLoss

11087000000

USD

CY2019

us-gaap

Profit Loss

ProfitLoss

19467000000

USD

CY2018

us-gaap

Profit Loss

ProfitLoss

18080000000

USD

CY2020

us-gaap

Net Income Loss Attributable To Noncontrolling Interest

NetIncomeLossAttributableToNoncontrollingInterest

40000000

USD

CY2019

us-gaap

Net Income Loss Attributable To Noncontrolling Interest

NetIncomeLossAttributableToNoncontrollingInterest

66000000

USD

CY2018

us-gaap

Net Income Loss Attributable To Noncontrolling Interest

NetIncomeLossAttributableToNoncontrollingInterest

35000000

USD

CY2020

us-gaap

Net Income Loss

NetIncomeLoss

11047000000

USD

CY2019

us-gaap

Net Income Loss

NetIncomeLoss

19401000000

USD

CY2018

us-gaap

Net Income Loss

NetIncomeLoss

18045000000

USD

CY2020

us-gaap

Income Loss From Continuing Operations Per Basic Share

IncomeLossFromContinuingOperationsPerBasicShare

4.75

CY2019

us-gaap

Income Loss From Continuing Operations Per Basic Share

IncomeLossFromContinuingOperationsPerBasicShare

8.08

CY2018

us-gaap

Income Loss From Continuing Operations Per Basic Share

IncomeLossFromContinuingOperationsPerBasicShare

6.69

CY2020

us-gaap

Income Loss From Discontinued Operations Net Of Tax Per Basic Share

IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare

-0.01

CY2019

us-gaap

Income Loss From Discontinued Operations Net Of Tax Per Basic Share

IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare

0

CY2018

us-gaap

Income Loss From Discontinued Operations Net Of Tax Per Basic Share

IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare

0

CY2020

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

4.74

CY2019

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

8.08

CY2018

us-gaap

Earnings Per Share Basic

EarningsPerShareBasic

6.69

CY2020

us-gaap

Weighted Average Number Of Shares Outstanding Basic

WeightedAverageNumberOfSharesOutstandingBasic

2085800000

shares

CY2019

us-gaap

Weighted Average Number Of Shares Outstanding Basic

WeightedAverageNumberOfSharesOutstandingBasic

2249200000

shares

CY2018

us-gaap

Weighted Average Number Of Shares Outstanding Basic

WeightedAverageNumberOfSharesOutstandingBasic

2493300000

shares

CY2020

us-gaap

Income Loss From Continuing Operations Per Diluted Share

IncomeLossFromContinuingOperationsPerDilutedShare

4.73

CY2019

us-gaap

Income Loss From Continuing Operations Per Diluted Share

IncomeLossFromContinuingOperationsPerDilutedShare

8.04

CY2018

us-gaap

Income Loss From Continuing Operations Per Diluted Share

IncomeLossFromContinuingOperationsPerDilutedShare

6.69

CY2020

us-gaap

Income Loss From Discontinued Operations Net Of Tax Per Diluted Share

IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare

-0.01

CY2019

us-gaap

Income Loss From Discontinued Operations Net Of Tax Per Diluted Share

IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare

0

CY2018

us-gaap

Income Loss From Discontinued Operations Net Of Tax Per Diluted Share

IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare

0

CY2020

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

4.72

CY2019

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

8.04

CY2018

us-gaap

Earnings Per Share Diluted

EarningsPerShareDiluted

6.68

CY2020

us-gaap

Weighted Average Number Of Diluted Shares Outstanding

WeightedAverageNumberOfDilutedSharesOutstanding

2099000000.0

shares

CY2019

us-gaap

Weighted Average Number Of Diluted Shares Outstanding

WeightedAverageNumberOfDilutedSharesOutstanding

2265300000

shares

CY2018

us-gaap

Weighted Average Number Of Diluted Shares Outstanding

WeightedAverageNumberOfDilutedSharesOutstanding

2494800000

shares

CY2020

us-gaap

Net Income Loss

NetIncomeLoss

11047000000

USD

CY2019

us-gaap

Net Income Loss

NetIncomeLoss

19401000000

USD

CY2018

us-gaap

Net Income Loss

NetIncomeLoss

18045000000

USD

CY2020

us-gaap

Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent

OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent

3585000000

USD

CY2019

us-gaap

Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent

OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent

1985000000

USD

CY2018

us-gaap

Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent

OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent

-1089000000

USD

CY2020

c

Other Comprehensive Income Loss Financial Liabilities Adjustment Excluding Opening Impact Netof Tax

OtherComprehensiveIncomeLossFinancialLiabilitiesAdjustmentExcludingOpeningImpactNetofTax

-475000000

USD

CY2019

c

Other Comprehensive Income Loss Financial Liabilities Adjustment Excluding Opening Impact Netof Tax

OtherComprehensiveIncomeLossFinancialLiabilitiesAdjustmentExcludingOpeningImpactNetofTax

-1136000000

USD

CY2018

c

Other Comprehensive Income Loss Financial Liabilities Adjustment Excluding Opening Impact Netof Tax

OtherComprehensiveIncomeLossFinancialLiabilitiesAdjustmentExcludingOpeningImpactNetofTax

1113000000

USD

CY2020

us-gaap

Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent

OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent

1470000000

USD

CY2019

us-gaap

Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent

OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent

851000000

USD

CY2018

us-gaap

Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent

OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent

-30000000

USD

CY2020

us-gaap

Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent

OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent

55000000

USD

CY2019

us-gaap

Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent

OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent

552000000

USD

CY2018

us-gaap

Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent

OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent

74000000

USD

CY2020

us-gaap

Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent

OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

-250000000

USD

CY2019

us-gaap

Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent

OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

-321000000

USD

CY2018

us-gaap

Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent

OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent

-2362000000

USD

CY2020

us-gaap

Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease After Adjustments And Tax Parent

OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent

-15000000

USD

CY2019

us-gaap

Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease After Adjustments And Tax Parent

OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent

25000000

USD

CY2018

us-gaap

Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease After Adjustments And Tax Parent

OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent

-57000000

USD

CY2020

us-gaap

Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent

OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

4260000000

USD

CY2019

us-gaap

Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent

OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

852000000

USD

CY2018

us-gaap

Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent

OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent

-2499000000

USD

CY2020

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

15307000000

USD

CY2019

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

20253000000

USD

CY2018

us-gaap

Comprehensive Income Net Of Tax

ComprehensiveIncomeNetOfTax

15546000000

USD

CY2020

us-gaap

Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest

OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest

26000000

USD

CY2019

us-gaap

Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest

OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest

0

USD

CY2018

us-gaap

Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest

OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest

-43000000

USD

CY2020

us-gaap

Net Income Loss Attributable To Noncontrolling Interest

NetIncomeLossAttributableToNoncontrollingInterest

40000000

USD

CY2019

us-gaap

Net Income Loss Attributable To Noncontrolling Interest

NetIncomeLossAttributableToNoncontrollingInterest

66000000

USD

CY2018

us-gaap

Net Income Loss Attributable To Noncontrolling Interest

NetIncomeLossAttributableToNoncontrollingInterest

35000000

USD

CY2020

us-gaap

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

15373000000

USD

CY2019

us-gaap

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

20319000000

USD

CY2018

us-gaap

Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest

ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest

15538000000

USD

CY2020Q4

us-gaap

Cash And Due From Banks

CashAndDueFromBanks

26349000000

USD

CY2019Q4

us-gaap

Cash And Due From Banks

CashAndDueFromBanks

23967000000

USD

CY2020Q4

us-gaap

Interest Bearing Deposits In Banks

InterestBearingDepositsInBanks

283266000000

USD

CY2019Q4

us-gaap

Interest Bearing Deposits In Banks

InterestBearingDepositsInBanks

169952000000

USD

CY2020Q4

us-gaap

Carrying Value Of Federal Funds Sold Securities Purchased Under Agreements To Resell And Deposits Paid For Securities Borrowed

CarryingValueOfFederalFundsSoldSecuritiesPurchasedUnderAgreementsToResellAndDepositsPaidForSecuritiesBorrowed

294712000000

USD

CY2019Q4

us-gaap

Carrying Value Of Federal Funds Sold Securities Purchased Under Agreements To Resell And Deposits Paid For Securities Borrowed

CarryingValueOfFederalFundsSoldSecuritiesPurchasedUnderAgreementsToResellAndDepositsPaidForSecuritiesBorrowed

251322000000

USD

CY2020Q4

c

Brokerage Receivables

BrokerageReceivables

44806000000

USD

CY2019Q4

c

Brokerage Receivables

BrokerageReceivables

39857000000

USD

CY2020Q4

us-gaap

Debt Securities Trading Restricted

DebtSecuritiesTradingRestricted

168967000000

USD

CY2019Q4

us-gaap

Debt Securities Trading Restricted

DebtSecuritiesTradingRestricted

120236000000

USD

CY2020Q4

us-gaap

Trading Securities

TradingSecurities

375079000000

USD

CY2019Q4

us-gaap

Trading Securities

TradingSecurities

276140000000

USD

CY2020Q4

us-gaap

Debt Securities Available For Sale Restricted

DebtSecuritiesAvailableForSaleRestricted

5921000000

USD

CY2019Q4

us-gaap

Debt Securities Available For Sale Restricted

DebtSecuritiesAvailableForSaleRestricted

8721000000

USD

CY2020Q4

us-gaap

Available For Sale Securities Debt Securities

AvailableForSaleSecuritiesDebtSecurities

335084000000

USD

CY2019Q4

us-gaap

Available For Sale Securities Debt Securities

AvailableForSaleSecuritiesDebtSecurities

280265000000

USD

CY2020Q4

us-gaap

Held To Maturity Securities Restricted

HeldToMaturitySecuritiesRestricted

547000000

USD

CY2019Q4

us-gaap

Held To Maturity Securities Restricted

HeldToMaturitySecuritiesRestricted

1923000000

USD

CY2020Q4

c

Debt Securities Held To Maturity Net Of Allowance For Credit Losses

DebtSecuritiesHeldToMaturityNetOfAllowanceForCreditLosses

104943000000

USD

CY2019Q4

c

Debt Securities Held To Maturity Net Of Allowance For Credit Losses

DebtSecuritiesHeldToMaturityNetOfAllowanceForCreditLosses

80775000000

USD

CY2020Q4

us-gaap

Equity Securities Fv Ni

EquitySecuritiesFvNi

1066000000

USD

CY2019Q4

us-gaap

Equity Securities Fv Ni

EquitySecuritiesFvNi

1162000000

USD

CY2020Q4

c

Non Marketable Equity Securities

NonMarketableEquitySecurities

7332000000

USD

CY2019Q4

c

Non Marketable Equity Securities

NonMarketableEquitySecurities

7523000000

USD

CY2020Q4

c

Investments Excluding Trading Securities

InvestmentsExcludingTradingSecurities

447359000000

USD

CY2019Q4

c

Investments Excluding Trading Securities

InvestmentsExcludingTradingSecurities

368563000000

USD

CY2020Q4

us-gaap

Notes Receivable Gross

NotesReceivableGross

675883000000

USD

CY2019Q4

us-gaap

Notes Receivable Gross

NotesReceivableGross

699483000000

USD

CY2020Q4

us-gaap

Financing Receivable Allowance For Credit Losses

FinancingReceivableAllowanceForCreditLosses

24956000000

USD

CY2019Q4

us-gaap

Financing Receivable Allowance For Credit Losses

FinancingReceivableAllowanceForCreditLosses

12783000000

USD

CY2020Q4

us-gaap

Notes Receivable Net

NotesReceivableNet

650927000000

USD

CY2019Q4

us-gaap

Notes Receivable Net

NotesReceivableNet

686700000000

USD

CY2020Q4

us-gaap

Goodwill

22162000000

USD

CY2019Q4

us-gaap

Goodwill

22126000000

USD

CY2020Q4

c

Mortgage Servicing Rights Msr Gross Carrying Amount

MortgageServicingRightsMSRGrossCarryingAmount

336000000

USD

CY2019Q4

c

Mortgage Servicing Rights Msr Gross Carrying Amount

MortgageServicingRightsMSRGrossCarryingAmount

495000000

USD

CY2020Q4

us-gaap

Intangible Assets Net Excluding Goodwill

IntangibleAssetsNetExcludingGoodwill

4747000000

USD

CY2019Q4

us-gaap

Intangible Assets Net Excluding Goodwill

IntangibleAssetsNetExcludingGoodwill

4822000000

USD

CY2020Q4

us-gaap

Other Assets

OtherAssets

110683000000

USD

CY2019Q4

us-gaap

Other Assets

OtherAssets

107709000000

USD

CY2020Q4

us-gaap

Assets

2260090000000

USD

CY2019Q4

us-gaap

Assets

1951158000000

USD

CY2020Q4

us-gaap

Noninterest Bearing Deposit Liabilities Domestic

NoninterestBearingDepositLiabilitiesDomestic

126942000000

USD

CY2019Q4

us-gaap

Noninterest Bearing Deposit Liabilities Domestic

NoninterestBearingDepositLiabilitiesDomestic

98811000000

USD

CY2020Q4

us-gaap

Interest Bearing Deposit Liabilities Domestic

InterestBearingDepositLiabilitiesDomestic

503213000000

USD

CY2019Q4

us-gaap

Interest Bearing Deposit Liabilities Domestic

InterestBearingDepositLiabilitiesDomestic

401418000000

USD

CY2020Q4

us-gaap

Noninterest Bearing Deposit Liabilities Foreign

NoninterestBearingDepositLiabilitiesForeign

100543000000

USD

CY2019Q4

us-gaap

Noninterest Bearing Deposit Liabilities Foreign

NoninterestBearingDepositLiabilitiesForeign

85692000000

USD

CY2020Q4

us-gaap

Interest Bearing Deposit Liabilities Foreign

InterestBearingDepositLiabilitiesForeign

549973000000

USD

CY2019Q4

us-gaap

Interest Bearing Deposit Liabilities Foreign

InterestBearingDepositLiabilitiesForeign

484669000000

USD

CY2020Q4

us-gaap

Deposits

1280671000000

USD

CY2019Q4

us-gaap

Deposits

1070590000000

USD

CY2020Q4

us-gaap

Carrying Value Of Federal Funds Purchased Securities Sold Under Agreements To Repurchase And Deposits Received For Securities Loaned

CarryingValueOfFederalFundsPurchasedSecuritiesSoldUnderAgreementsToRepurchaseAndDepositsReceivedForSecuritiesLoaned

199525000000

USD

CY2019Q4

us-gaap

Carrying Value Of Federal Funds Purchased Securities Sold Under Agreements To Repurchase And Deposits Received For Securities Loaned

CarryingValueOfFederalFundsPurchasedSecuritiesSoldUnderAgreementsToRepurchaseAndDepositsReceivedForSecuritiesLoaned

166339000000

USD

CY2020Q4

c

Brokerage Payables

BrokeragePayables

50484000000

USD

CY2019Q4

c

Brokerage Payables

BrokeragePayables

48601000000

USD

CY2020Q4

us-gaap

Trading Liabilities

TradingLiabilities

168027000000

USD

CY2019Q4

us-gaap

Trading Liabilities

TradingLiabilities

119894000000

USD

CY2020Q4

us-gaap

Short Term Borrowings

ShortTermBorrowings

29514000000

USD

CY2019Q4

us-gaap

Short Term Borrowings

ShortTermBorrowings

45049000000

USD

CY2020Q4

us-gaap

Long Term Debt

LongTermDebt

271686000000

USD

CY2019Q4

us-gaap

Long Term Debt

LongTermDebt

248760000000

USD

CY2020Q4

us-gaap

Other Liabilities

OtherLiabilities

59983000000

USD

CY2019Q4

us-gaap

Other Liabilities

OtherLiabilities

57979000000

USD

CY2020Q4

us-gaap

Liabilities

2059890000000

USD

CY2019Q4

us-gaap

Liabilities

1757212000000

USD

CY2020Q4

us-gaap

Preferred Stock Par Or Stated Value Per Share

PreferredStockParOrStatedValuePerShare

1.00

CY2019Q4

us-gaap

Preferred Stock Par Or Stated Value Per Share

PreferredStockParOrStatedValuePerShare

1.00

CY2019Q4

us-gaap

Preferred Stock Shares Authorized

PreferredStockSharesAuthorized

30000000

shares

CY2020Q4

us-gaap

Preferred Stock Shares Authorized

PreferredStockSharesAuthorized

30000000

shares

CY2020Q4

us-gaap

Preferred Stock Shares Issued

PreferredStockSharesIssued

779200

shares

CY2019Q4

us-gaap

Preferred Stock Shares Issued

PreferredStockSharesIssued

719200

shares

CY2020Q4

us-gaap

Preferred Stock Value

PreferredStockValue

19480000000

USD

CY2019Q4

us-gaap

Preferred Stock Value

PreferredStockValue

17980000000

USD

CY2019Q4

us-gaap

Common Stock Par Or Stated Value Per Share

CommonStockParOrStatedValuePerShare

0.01

CY2020Q4

us-gaap

Common Stock Par Or Stated Value Per Share

CommonStockParOrStatedValuePerShare

0.01

CY2020Q4

us-gaap

Common Stock Shares Authorized

CommonStockSharesAuthorized

6000000000

shares

CY2019Q4

us-gaap

Common Stock Shares Authorized

CommonStockSharesAuthorized

6000000000

shares

CY2020Q4

us-gaap

Common Stock Shares Issued

CommonStockSharesIssued

3099763661

shares

CY2019Q4

us-gaap

Common Stock Shares Issued

CommonStockSharesIssued

3099602856

shares

CY2020Q4

us-gaap

Common Stock Value

CommonStockValue

31000000

USD

CY2019Q4

us-gaap

Common Stock Value

CommonStockValue

31000000

USD

CY2020Q4

us-gaap

Additional Paid In Capital

AdditionalPaidInCapital

107846000000

USD

CY2019Q4

us-gaap

Additional Paid In Capital

AdditionalPaidInCapital

107840000000

USD

CY2020Q4

us-gaap

Retained Earnings Accumulated Deficit

RetainedEarningsAccumulatedDeficit

168272000000

USD

CY2019Q4

us-gaap

Retained Earnings Accumulated Deficit

RetainedEarningsAccumulatedDeficit

165369000000

USD

CY2020Q4

us-gaap

Treasury Stock Shares

TreasuryStockShares

1017674452

shares

CY2019Q4

us-gaap

Treasury Stock Shares

TreasuryStockShares

985479501

shares

CY2020Q4

us-gaap

Treasury Stock Value

TreasuryStockValue

64129000000

USD

CY2019Q4

us-gaap

Treasury Stock Value

TreasuryStockValue

61660000000

USD

CY2020Q4

us-gaap

Accumulated Other Comprehensive Income Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossNetOfTax

-32058000000

USD

CY2019Q4

us-gaap

Accumulated Other Comprehensive Income Loss Net Of Tax

AccumulatedOtherComprehensiveIncomeLossNetOfTax

-36318000000

USD

CY2020Q4

us-gaap

Stockholders Equity

StockholdersEquity

199442000000

USD

CY2019Q4

us-gaap

Stockholders Equity

StockholdersEquity

193242000000

USD

CY2020Q4

us-gaap

Minority Interest

MinorityInterest

758000000

USD

CY2019Q4

us-gaap

Minority Interest

MinorityInterest

704000000

USD

CY2020Q4

us-gaap

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

200200000000

USD

CY2019Q4

us-gaap

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

193946000000

USD

CY2020Q4

us-gaap

Liabilities And Stockholders Equity

LiabilitiesAndStockholdersEquity

2260090000000

USD

CY2019Q4

us-gaap

Liabilities And Stockholders Equity

LiabilitiesAndStockholdersEquity

1951158000000

USD

CY2020Q4

us-gaap

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

200200000000

USD

CY2019Q4

us-gaap

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

193946000000

USD

CY2018Q4

us-gaap

Stockholders Equity Including Portion Attributable To Noncontrolling Interest

StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest

197074000000

USD

CY2020Q2

us-gaap

Common Stock Dividends Per Share Declared