$C
CITIGROUP INC Stock $c

$c Overview Financials Valuation SEC Filings Company Website

2021 Q3 Form 10-Q Financial Statement

#000083100121000167 Filed on November 08, 2021

Income Statement

Concept	2021 Q3	2021 Q2	2021 Q1
Revenue	$17.45B	$17.75B	$19.67B
YoY Change	-1.3%	-11.39%	-6.15%
Cost Of Revenue	$22.00M	$15.00M	$52.00M
YoY Change	-99.08%	-99.82%	-99.25%
Gross Profit	$17.43B	$17.74B	$19.62B
YoY Change	13.94%	49.83%	40.15%
Gross Profit Margin	99.87%	99.92%	99.74%
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development	$1.997B	$1.895B	$1.852B
YoY Change	5.61%	8.85%	7.49%
% of Gross Profit	11.46%	10.68%	9.44%
Depreciation & Amortization	$1.035B	$982.0M	$962.0M
YoY Change	0.19%	6.05%	3.78%
% of Gross Profit	5.94%	5.54%	4.9%
Operating Expenses	$1.997B	$1.895B	$1.852B
YoY Change	5.61%	8.85%	7.49%
Operating Profit	$15.43B	$15.84B	$17.76B
YoY Change	15.12%	56.89%	44.73%
Interest Expense	$2.252B	$1.985B	$2.028B
YoY Change	-20.17%	-43.43%	-64.09%
% of Operating Profit	14.6%	12.53%	11.42%
Other Income/Expense, Net	$31.00M	$451.0M	$285.0M
YoY Change	-91.8%	325.47%	-204.01%
Pretax Income	$5.862B	$7.348B	$10.31B
YoY Change	48.25%	562.58%	229.57%
Income Tax	$1.193B	$1.155B	$2.332B
% Of Pretax Income	20.35%	15.72%	22.62%
Net Earnings	$4.644B	$6.193B	$7.942B
YoY Change	47.62%	486.46%	213.17%
Net Earnings / Revenue	26.62%	34.88%	40.38%
Basic Earnings Per Share	$2.17	$2.87	$3.64
Diluted Earnings Per Share	$2.15	$2.85	$3.62
COMMON SHARES
Basic Shares Outstanding	2.009B shares	2.057B shares	2.082B shares
Diluted Shares Outstanding	2.026B shares	2.073B shares	2.097B shares

Balance Sheet

Concept	2021 Q3	2021 Q2	2021 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$323.8B	$299.2B	$324.7B
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	$2.800B	$2.900B
YoY Change	-3.45%	-3.45%
Goodwill	$21.57B	$22.06B	$21.91B
YoY Change	-0.24%	3.09%	3.01%
Intangibles	$4.553B	$4.687B	$4.741B
YoY Change	-5.22%	5.3%	3.97%
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	$2362B	$2291B	$2291B
YoY Change	5.7%	2.61%	3.21%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$60.50B	$59.42B	$60.91B
YoY Change	11.36%	-1.9%	-18.1%
Accrued Expenses	$3.000B	$3.000B	$3.100B
YoY Change	-3.23%	-6.25%
Deferred Revenue
YoY Change
Short-Term Debt	$29.68B	$31.46B	$32.09B
YoY Change	-20.72%	-21.65%	-41.61%
Long-Term Debt Due			$37.00M
YoY Change
Total Short-Term Liabilities	$63.50B	$62.42B	$64.04B
YoY Change	10.57%	-2.12%	-13.88%
LONG-TERM LIABILITIES
Long-Term Debt	$252.5B	$255.1B	$245.4B
YoY Change	-2.35%	-2.56%	-7.78%
Other Long-Term Liabilities	$252.1B	$234.4B	$238.4B
YoY Change	24.87%	13.06%	6.37%
Total Long-Term Liabilities	$504.6B	$489.5B	$483.8B
YoY Change	9.58%	4.34%	-1.31%
TOTAL LIABILITIES
Total Short-Term Liabilities	$63.50B	$62.42B	$64.04B
Total Long-Term Liabilities	$504.6B	$489.5B	$483.8B
Total Liabilities	$2160B	$2125B	$2111B
YoY Change	5.9%	4.14%	4.15%
SHAREHOLDERS EQUITY
Retained Earnings	$183.0B	$179.7B	$174.8B
YoY Change	10.72%	9.95%	6.96%
Common Stock	$31.00M	$31.00M	$31.00M
YoY Change	0.0%	0.0%	0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$71.25B	$68.25B	$65.26B
YoY Change	11.08%	6.41%	1.74%
Treasury Stock Shares	1.115B shares	1.073B shares	1.033B shares
Shareholders Equity	$200.9B	$202.2B	$202.5B
YoY Change
Total Liabilities & Shareholders Equity	$2362B	$2328B	$2314B
YoY Change	5.7%	4.26%	4.26%

Cashflow Statement

Concept	2021 Q3	2021 Q2	2021 Q1
OPERATING ACTIVITIES
Net Income	$4.644B	$6.193B	$7.942B
YoY Change	47.62%	486.46%	213.17%
Depreciation, Depletion And Amortization	$1.035B	$982.0M	$962.0M
YoY Change	0.19%	6.05%	3.78%
Cash From Operating Activities	$35.62B	$365.0M	$23.20B
YoY Change	-1269.47%	-94.23%	-190.85%
INVESTING ACTIVITIES
Capital Expenditures	-$1.040B	-$941.0M	$830.0M
YoY Change	5.91%	9.67%	80.43%
Acquisitions
YoY Change
Other Investing Activities	-$32.92B	-$36.24B	-$7.000M
YoY Change	-447.57%	101.6%	-61.11%
Cash From Investing Activities	-$33.96B	-$37.18B	-$40.93B
YoY Change	-500.02%	97.41%	-43.82%
FINANCING ACTIVITIES
Cash Dividend Paid			$1.356B
YoY Change			-0.66%
Common Stock Issuance & Retirement, Net			$1.481B
YoY Change			-49.37%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	23.25B	11.36B	$33.26B
YoY Change	179.84%	-68.76%	-82.62%
NET CHANGE
Cash From Operating Activities	35.62B	365.0M	$23.20B
Cash From Investing Activities	-33.96B	-37.18B	-$40.93B
Cash From Financing Activities	23.25B	11.36B	$33.26B
Net Change In Cash	24.92B	-25.45B	$15.07B
YoY Change	81.18%	-206.69%	-83.62%
FREE CASH FLOW
Cash From Operating Activities	$35.62B	$365.0M	$23.20B
Capital Expenditures	-$1.040B	-$941.0M	$830.0M
Free Cash Flow	$36.66B	$1.306B	$22.37B
YoY Change	-1876.26%	-81.82%	-186.05%

Facts In Submission

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	dei	Entity Central Index Key EntityCentralIndexKey	0000831001
	dei	Amendment Flag AmendmentFlag	false
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2021
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
CY2019	us-gaap	Accounting Standards Update Extensible List AccountingStandardsUpdateExtensibleList	http://fasb.org/us-gaap/2021-01-31#AccountingStandardsUpdate201613Member
CY2019	us-gaap	Change In Accounting Principle Type Extensible List ChangeInAccountingPrincipleTypeExtensibleList	http://fasb.org/us-gaap/2021-01-31#ChangeInAccountingPrincipleOtherMember
	dei	Document Type DocumentType	10-Q
	dei	Document Quarterly Report DocumentQuarterlyReport	true
	dei	Document Period End Date DocumentPeriodEndDate	2021-09-30
	dei	Document Transition Report DocumentTransitionReport	false
	dei	Entity File Number EntityFileNumber	1-9924
	dei	Entity Registrant Name EntityRegistrantName	Citigroup Inc
	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	52-1568099
	dei	Entity Address Address Line1 EntityAddressAddressLine1	388 Greenwich Street,
	dei	Entity Address City Or Town EntityAddressCityOrTown	New York
	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	10013
	dei	City Area Code CityAreaCode	212
	dei	Local Phone Number LocalPhoneNumber	559-1000
	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
	dei	Entity Shell Company EntityShellCompany	false
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CY2021Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.17
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.37
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	8.70
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.82
CY2021Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.01
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.17
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.37
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.70
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.81
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2009300000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2081800000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2049300000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2087100000	shares
CY2021Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.15
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.36
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	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.81
CY2021Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.01
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.15
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.36
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.65
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.80
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2026200000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2094300000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2065300000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2100100000	shares
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	4644000000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	3146000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	18779000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	6738000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-279000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-282000000	USD
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	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	3683000000	USD
CY2021Q3	c	Other Comprehensive Income Loss Financial Liabilities Adjustment Excluding Opening Impact Netof Tax OtherComprehensiveIncomeLossFinancialLiabilitiesAdjustmentExcludingOpeningImpactNetofTax	-82000000	USD
CY2020Q3	c	Other Comprehensive Income Loss Financial Liabilities Adjustment Excluding Opening Impact Netof Tax OtherComprehensiveIncomeLossFinancialLiabilitiesAdjustmentExcludingOpeningImpactNetofTax	-307000000	USD
	c	Other Comprehensive Income Loss Financial Liabilities Adjustment Excluding Opening Impact Netof Tax OtherComprehensiveIncomeLossFinancialLiabilitiesAdjustmentExcludingOpeningImpactNetofTax	-186000000	USD
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CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-201000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-235000000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-930000000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	1736000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-135000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-246000000	USD
	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-936000000	USD
	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	117000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-1312000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	897000000	USD
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	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent	-2651000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease After Adjustments And Tax Parent OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent	8000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Derivative Excluded Component Increase Decrease After Adjustments And Tax Parent OtherComprehensiveIncomeLossDerivativeExcludedComponentIncreaseDecreaseAfterAdjustmentsAndTaxParent	-39000000	USD
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CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1731000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	280000000	USD
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	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3253000000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2913000000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3426000000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	13986000000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	9991000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-31000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	19000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-71000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	7000000	USD
CY2021Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	24000000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	24000000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	67000000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	18000000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	2906000000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	3469000000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	13982000000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	10016000000	USD
CY2021Q3	us-gaap	Cash And Due From Banks CashAndDueFromBanks	28906000000	USD
CY2020Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	26349000000	USD
CY2021Q3	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	294902000000	USD
CY2020Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	283266000000	USD
CY2021Q3	us-gaap	Carrying Value Of Federal Funds Sold Securities Purchased Under Agreements To Resell And Deposits Paid For Securities Borrowed CarryingValueOfFederalFundsSoldSecuritiesPurchasedUnderAgreementsToResellAndDepositsPaidForSecuritiesBorrowed	337696000000	USD
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CY2021Q3	c	Brokerage Receivables BrokerageReceivables	59487000000	USD
CY2020Q4	c	Brokerage Receivables BrokerageReceivables	44806000000	USD
CY2021Q3	us-gaap	Debt Securities Trading Restricted DebtSecuritiesTradingRestricted	142662000000	USD
CY2020Q4	us-gaap	Debt Securities Trading Restricted DebtSecuritiesTradingRestricted	168967000000	USD
CY2021Q3	us-gaap	Trading Securities TradingSecurities	342914000000	USD
CY2020Q4	us-gaap	Trading Securities TradingSecurities	375079000000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	8685000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	5921000000	USD
CY2021Q3	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	295573000000	USD
CY2020Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	335084000000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Restricted HeldToMaturitySecuritiesRestricted	1257000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Restricted HeldToMaturitySecuritiesRestricted	547000000	USD
CY2021Q3	c	Debt Securities Held To Maturity Net Of Allowance For Credit Losses DebtSecuritiesHeldToMaturityNetOfAllowanceForCreditLosses	198056000000	USD
CY2020Q4	c	Debt Securities Held To Maturity Net Of Allowance For Credit Losses DebtSecuritiesHeldToMaturityNetOfAllowanceForCreditLosses	104943000000	USD
CY2021Q3	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	918000000	USD
CY2020Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	1066000000	USD
CY2021Q3	c	Non Marketable Equity Securities NonMarketableEquitySecurities	7220000000	USD
CY2020Q4	c	Non Marketable Equity Securities NonMarketableEquitySecurities	7332000000	USD
CY2021Q3	c	Investments Excluding Trading Securities InvestmentsExcludingTradingSecurities	500849000000	USD
CY2020Q4	c	Investments Excluding Trading Securities InvestmentsExcludingTradingSecurities	447359000000	USD
CY2021Q3	us-gaap	Notes Receivable Gross NotesReceivableGross	664764000000	USD
CY2020Q4	us-gaap	Notes Receivable Gross NotesReceivableGross	675883000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	17715000000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	24956000000	USD
CY2021Q3	us-gaap	Notes Receivable Net NotesReceivableNet	647049000000	USD
CY2020Q4	us-gaap	Notes Receivable Net NotesReceivableNet	650927000000	USD
CY2021Q3	us-gaap	Goodwill Goodwill	21573000000	USD
CY2020Q4	us-gaap	Goodwill Goodwill	22162000000	USD
CY2021Q3	c	Mortgage Servicing Rights Msr Gross Carrying Amount MortgageServicingRightsMSRGrossCarryingAmount	409000000	USD
CY2020Q4	c	Mortgage Servicing Rights Msr Gross Carrying Amount MortgageServicingRightsMSRGrossCarryingAmount	336000000	USD
CY2021Q3	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4553000000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	4747000000	USD
CY2021Q3	us-gaap	Other Assets OtherAssets	123947000000	USD
CY2020Q4	us-gaap	Other Assets OtherAssets	110683000000	USD
CY2021Q3	us-gaap	Assets Assets	2361876000000	USD
CY2020Q4	us-gaap	Assets Assets	2260090000000	USD
CY2021Q3	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	145103000000	USD
CY2020Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	126942000000	USD
CY2021Q3	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	567902000000	USD
CY2020Q4	us-gaap	Interest Bearing Deposit Liabilities Domestic InterestBearingDepositLiabilitiesDomestic	503213000000	USD
CY2021Q3	us-gaap	Noninterest Bearing Deposit Liabilities Foreign NoninterestBearingDepositLiabilitiesForeign	94016000000	USD
CY2020Q4	us-gaap	Noninterest Bearing Deposit Liabilities Foreign NoninterestBearingDepositLiabilitiesForeign	100543000000	USD
CY2021Q3	us-gaap	Interest Bearing Deposit Liabilities Foreign InterestBearingDepositLiabilitiesForeign	540507000000	USD
CY2020Q4	us-gaap	Interest Bearing Deposit Liabilities Foreign InterestBearingDepositLiabilitiesForeign	549973000000	USD
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CY2020Q4	us-gaap	Deposits Deposits	1280671000000	USD
CY2021Q3	us-gaap	Carrying Value Of Federal Funds Purchased Securities Sold Under Agreements To Repurchase And Deposits Received For Securities Loaned CarryingValueOfFederalFundsPurchasedSecuritiesSoldUnderAgreementsToRepurchaseAndDepositsReceivedForSecuritiesLoaned	209184000000	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
CY2021Q3	c	Brokerage Payables BrokeragePayables	60501000000	USD
CY2020Q4	c	Brokerage Payables BrokeragePayables	50484000000	USD
CY2021Q3	us-gaap	Trading Liabilities TradingLiabilities	179286000000	USD
CY2020Q4	us-gaap	Trading Liabilities TradingLiabilities	168027000000	USD
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CY2020Q4	us-gaap	Short Term Borrowings ShortTermBorrowings	29514000000	USD
CY2021Q3	us-gaap	Long Term Debt LongTermDebt	258274000000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	271686000000	USD
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CY2020Q4	us-gaap	Other Liabilities OtherLiabilities	59983000000	USD
CY2021Q3	us-gaap	Liabilities Liabilities	2160266000000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	2059890000000	USD
CY2021Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
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CY2021Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	719800	shares
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CY2021Q3	us-gaap	Preferred Stock Value PreferredStockValue	17995000000	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	19480000000	USD
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
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CY2021Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	3099651835	shares
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CY2021Q3	us-gaap	Treasury Stock Value TreasuryStockValue	71246000000	USD
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	64129000000	USD
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CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-32058000000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	200875000000	USD
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CY2021Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	201610000000	USD
CY2020Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	200200000000	USD
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CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2260090000000	USD
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	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	3068000000	USD
	us-gaap	Increase Decrease In Loans Held For Sale IncreaseDecreaseInLoansHeldForSale	-1288000000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1781000000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	28000000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	8989000000	USD
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-1070000000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	2161000000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-2889000000	USD
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	40413000000	USD
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	-29018000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	59185000000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-22254000000	USD
	us-gaap	Proceeds From Payments For Federal Funds Sold And Securities Purchased Under Agreements To Resell Net ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet	-42984000000	USD
	us-gaap	Proceeds From Payments For Federal Funds Sold And Securities Purchased Under Agreements To Resell Net ProceedsFromPaymentsForFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResellNet	-38036000000	USD
	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	-6613000000	USD
	us-gaap	Payments For Proceeds From Other Loans And Leases PaymentsForProceedsFromOtherLoansAndLeases	-23488000000	USD
	us-gaap	Proceeds From Sale Of Loans And Leases Held For Investment ProceedsFromSaleOfLoansAndLeasesHeldForInvestment	1134000000	USD
	us-gaap	Proceeds From Sale Of Loans And Leases Held For Investment ProceedsFromSaleOfLoansAndLeasesHeldForInvestment	924000000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	277874000000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	276084000000	USD
	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	96203000000	USD
	us-gaap	Proceeds From Sale Of Other Investments ProceedsFromSaleOfOtherInvestments	130237000000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	107361000000	USD
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Other Investments ProceedsFromMaturitiesPrepaymentsAndCallsOfOtherInvestments	78476000000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2811000000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2300000000	USD
	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	143000000	USD
	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	25000000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-146000000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-70000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-112069000000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-83200000000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	3959000000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	4024000000	USD
	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	2300000000	USD
	us-gaap	Proceeds From Issuance Of Preferred Stock And Preference Stock ProceedsFromIssuanceOfPreferredStockAndPreferenceStock	1500000000	USD
	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	3785000000	USD
	us-gaap	Payments For Repurchase Of Preferred Stock And Preference Stock PaymentsForRepurchaseOfPreferredStockAndPreferenceStock	1500000000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7448000000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2925000000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	328000000	USD
	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	408000000	USD
	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	9659000000	USD
	us-gaap	Increase Decrease In Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Net IncreaseDecreaseInFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchaseNet	40888000000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	53961000000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	65599000000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	56472000000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	47521000000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	73769000000	USD
	us-gaap	Increase Decrease In Deposits IncreaseDecreaseInDeposits	192033000000	USD
	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	169000000	USD
	us-gaap	Proceeds From Short Term Debt ProceedsFromShortTermDebt	-7610000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	67866000000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	236032000000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-789000000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	-802000000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	14193000000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	129776000000	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
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	323808000000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	323695000000	USD
CY2021Q3	us-gaap	Cash And Due From Banks CashAndDueFromBanks	28906000000	USD
CY2020Q3	us-gaap	Cash And Due From Banks CashAndDueFromBanks	25308000000	USD
CY2021Q3	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	294902000000	USD
CY2020Q3	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	298387000000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	323808000000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	323695000000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3063000000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	3837000000	USD
	us-gaap	Interest Paid Net InterestPaidNet	6894000000	USD
	us-gaap	Interest Paid Net InterestPaidNet	11502000000	USD
	us-gaap	Loans Receivable Held For Sale Reconciliation To Cash Flow Additions To Held For Sale LoansReceivableHeldForSaleReconciliationToCashFlowAdditionsToHeldForSale	8291000000	USD
	us-gaap	Loans Receivable Held For Sale Reconciliation To Cash Flow Additions To Held For Sale LoansReceivableHeldForSaleReconciliationToCashFlowAdditionsToHeldForSale	0	USD
	us-gaap	Financing Receivable Reclassification To Held For Sale FinancingReceivableReclassificationToHeldForSale	5329000000	USD
	us-gaap	Financing Receivable Reclassification To Held For Sale FinancingReceivableReclassificationToHeldForSale	2122000000	USD
	c	Increase Decrease In Long Term Debt Reclassifications To Held For Sale IncreaseDecreaseInLongTermDebtReclassificationsToHeldForSale	521000000	USD
	c	Increase Decrease In Long Term Debt Reclassifications To Held For Sale IncreaseDecreaseInLongTermDebtReclassificationsToHeldForSale	0	USD
	c	Increase Decrease In Deposits Reclassifications To Held For Sale IncreaseDecreaseInDepositsReclassificationsToHeldForSale	6912000000	USD
	c	Increase Decrease In Deposits Reclassifications To Held For Sale IncreaseDecreaseInDepositsReclassificationsToHeldForSale	0	USD
CY2020Q1	c	Financing Receivable Allowance For Credit Loss Percentage Increase Decrease FinancingReceivableAllowanceForCreditLossPercentageIncreaseDecrease	0.29
CY2021Q3	us-gaap	Disposal Group Including Discontinued Operation Gross Profit Loss DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss	0	USD
CY2020Q3	us-gaap	Disposal Group Including Discontinued Operation Gross Profit Loss DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss	0	USD
	us-gaap	Disposal Group Including Discontinued Operation Gross Profit Loss DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss	0	USD
	us-gaap	Disposal Group Including Discontinued Operation Gross Profit Loss DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss	0	USD
CY2021Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-1000000	USD
CY2020Q3	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-7000000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	7000000	USD
	us-gaap	Discontinued Operation Income Loss From Discontinued Operation Before Income Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax	-26000000	USD
CY2021Q3	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
CY2020Q3	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
CY2021Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-1000000	USD
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-7000000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	7000000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-26000000	USD
	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segment
CY2021Q3	us-gaap	Revenues Revenues	17154000000	USD
CY2020Q3	us-gaap	Revenues Revenues	17302000000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1193000000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	777000000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	4669000000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	3177000000	USD
CY2021Q3	us-gaap	Assets Assets	2362000000000	USD
CY2020Q4	us-gaap	Assets Assets	2260000000000	USD
	us-gaap	Revenues Revenues	53955000000	USD
	us-gaap	Revenues Revenues	57799000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4680000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1409000000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	18839000000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	6782000000	USD
CY2021Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	8874000000	USD
CY2020Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	9421000000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	26516000000	USD
	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	30820000000	USD
CY2021Q3	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	147000000	USD
CY2020Q3	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	116000000	USD
	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	418000000	USD
	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	802000000	USD
CY2021Q3	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	264000000	USD
CY2020Q3	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	352000000	USD
	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	763000000	USD
	us-gaap	Interest Income Federal Funds Sold And Securities Purchased Under Agreements To Resell InterestIncomeFederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell	1961000000	USD
CY2021Q3	c	Interest And Dividend Income Securities Excluding Trading Securities InterestAndDividendIncomeSecuritiesExcludingTradingSecurities	1885000000	USD
CY2020Q3	c	Interest And Dividend Income Securities Excluding Trading Securities InterestAndDividendIncomeSecuritiesExcludingTradingSecurities	1870000000	USD
	c	Interest And Dividend Income Securities Excluding Trading Securities InterestAndDividendIncomeSecuritiesExcludingTradingSecurities	5455000000	USD
	c	Interest And Dividend Income Securities Excluding Trading Securities InterestAndDividendIncomeSecuritiesExcludingTradingSecurities	6248000000	USD
CY2021Q3	us-gaap	Interest Income Debt Securities Trading Operating InterestIncomeDebtSecuritiesTradingOperating	1284000000	USD
CY2020Q3	us-gaap	Interest Income Debt Securities Trading Operating InterestIncomeDebtSecuritiesTradingOperating	1457000000	USD
	us-gaap	Interest Income Debt Securities Trading Operating InterestIncomeDebtSecuritiesTradingOperating	4091000000	USD
	us-gaap	Interest Income Debt Securities Trading Operating InterestIncomeDebtSecuritiesTradingOperating	4720000000	USD
CY2021Q3	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	196000000	USD
CY2020Q3	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	98000000	USD
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	404000000	USD
	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	491000000	USD
CY2021Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	12650000000	USD
CY2020Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	13314000000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	37647000000	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	45042000000	USD
CY2021Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	1023000000	USD
CY2020Q3	us-gaap	Interest Expense Deposits InterestExpenseDeposits	1293000000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	3030000000	USD
	us-gaap	Interest Expense Deposits InterestExpenseDeposits	5376000000	USD
CY2021Q3	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	287000000	USD
CY2020Q3	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	292000000	USD
	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	800000000	USD
	us-gaap	Interest Expense Federal Funds Purchased And Securities Sold Under Agreements To Repurchase InterestExpenseFederalFundsPurchasedAndSecuritiesSoldUnderAgreementsToRepurchase	1830000000	USD
CY2021Q3	us-gaap	Interest Expense Trading Liabilities InterestExpenseTradingLiabilities	106000000	USD
CY2020Q3	us-gaap	Interest Expense Trading Liabilities InterestExpenseTradingLiabilities	123000000	USD
	us-gaap	Interest Expense Trading Liabilities InterestExpenseTradingLiabilities	370000000	USD
	us-gaap	Interest Expense Trading Liabilities InterestExpenseTradingLiabilities	506000000	USD
CY2021Q3	us-gaap	Interest Expense Short Term Borrowings Excluding Federal Funds And Securities Sold Under Agreements To Repurchase InterestExpenseShortTermBorrowingsExcludingFederalFundsAndSecuritiesSoldUnderAgreementsToRepurchase	8000000	USD
CY2020Q3	us-gaap	Interest Expense Short Term Borrowings Excluding Federal Funds And Securities Sold Under Agreements To Repurchase InterestExpenseShortTermBorrowingsExcludingFederalFundsAndSecuritiesSoldUnderAgreementsToRepurchase	88000000	USD
	us-gaap	Interest Expense Short Term Borrowings Excluding Federal Funds And Securities Sold Under Agreements To Repurchase InterestExpenseShortTermBorrowingsExcludingFederalFundsAndSecuritiesSoldUnderAgreementsToRepurchase	70000000	USD
	us-gaap	Interest Expense Short Term Borrowings Excluding Federal Funds And Securities Sold Under Agreements To Repurchase InterestExpenseShortTermBorrowingsExcludingFederalFundsAndSecuritiesSoldUnderAgreementsToRepurchase	612000000	USD
CY2021Q3	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	828000000	USD
CY2020Q3	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	1025000000	USD
	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	2614000000	USD
	us-gaap	Interest Expense Long Term Debt InterestExpenseLongTermDebt	3653000000	USD
CY2021Q3	us-gaap	Interest Expense InterestExpense	2252000000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	2821000000	USD
	us-gaap	Interest Expense InterestExpense	6884000000	USD
	us-gaap	Interest Expense InterestExpense	11977000000	USD
CY2021Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	10398000000	USD
CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	10493000000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	30763000000	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	33065000000	USD
CY2021Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-188000000	USD
CY2020Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1931000000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-2793000000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	16298000000	USD
CY2021Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	10586000000	USD
CY2020Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	8562000000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	33556000000	USD
	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	16767000000	USD
CY2021Q3	c	Insurance Fees And Charges InsuranceFeesAndCharges	293000000	USD
CY2020Q3	c	Insurance Fees And Charges InsuranceFeesAndCharges	375000000	USD
	c	Insurance Fees And Charges InsuranceFeesAndCharges	912000000	USD
	c	Insurance Fees And Charges InsuranceFeesAndCharges	870000000	USD
CY2021Q3	c	Commissions And Fees CommissionsAndFees	3399000000	USD
	c	Commissions And Fees CommissionsAndFees	10443000000	USD
CY2020Q3	c	Commissions And Fees CommissionsAndFees	2753000000	USD
	c	Commissions And Fees CommissionsAndFees	8707000000	USD
CY2021Q3	us-gaap	Principal Transactions Revenue PrincipalTransactionsRevenue	2233000000	USD
CY2020Q3	us-gaap	Principal Transactions Revenue PrincipalTransactionsRevenue	2508000000	USD
	us-gaap	Principal Transactions Revenue PrincipalTransactionsRevenue	8450000000	USD
	us-gaap	Principal Transactions Revenue PrincipalTransactionsRevenue	11926000000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	4669000000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	3177000000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	18839000000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	6782000000	USD
CY2021Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	24000000	USD
CY2020Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	24000000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	67000000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	18000000	USD
CY2021Q3	c	Income Loss From Continuing Operation After Noncontrolling Interest IncomeLossFromContinuingOperationAfterNoncontrollingInterest	4645000000	USD
CY2020Q3	c	Income Loss From Continuing Operation After Noncontrolling Interest IncomeLossFromContinuingOperationAfterNoncontrollingInterest	3153000000	USD
	c	Income Loss From Continuing Operation After Noncontrolling Interest IncomeLossFromContinuingOperationAfterNoncontrollingInterest	18772000000	USD
	c	Income Loss From Continuing Operation After Noncontrolling Interest IncomeLossFromContinuingOperationAfterNoncontrollingInterest	6764000000	USD
CY2021Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-1000000	USD
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-7000000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	7000000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-26000000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	4644000000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	3146000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	18779000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	6738000000	USD
CY2021Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	266000000	USD
CY2020Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	284000000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	811000000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	828000000	USD
CY2021Q3	c	Income Loss Available To Common Stockholders IncomeLossAvailableToCommonStockholders	4378000000	USD
CY2020Q3	c	Income Loss Available To Common Stockholders IncomeLossAvailableToCommonStockholders	2862000000	USD
	c	Income Loss Available To Common Stockholders IncomeLossAvailableToCommonStockholders	17968000000	USD
	c	Income Loss Available To Common Stockholders IncomeLossAvailableToCommonStockholders	5910000000	USD
CY2021Q3	c	Income Allocated To Employee Restricted And Deferred Shares That Contain Nonforfeitable Rights To Dividends IncomeAllocatedToEmployeeRestrictedAndDeferredSharesThatContainNonforfeitableRightsToDividends	26000000	USD
CY2020Q3	c	Income Allocated To Employee Restricted And Deferred Shares That Contain Nonforfeitable Rights To Dividends IncomeAllocatedToEmployeeRestrictedAndDeferredSharesThatContainNonforfeitableRightsToDividends	18000000	USD
	c	Income Allocated To Employee Restricted And Deferred Shares That Contain Nonforfeitable Rights To Dividends IncomeAllocatedToEmployeeRestrictedAndDeferredSharesThatContainNonforfeitableRightsToDividends	134000000	USD
	c	Income Allocated To Employee Restricted And Deferred Shares That Contain Nonforfeitable Rights To Dividends IncomeAllocatedToEmployeeRestrictedAndDeferredSharesThatContainNonforfeitableRightsToDividends	50000000	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	4352000000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2844000000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	17834000000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	5860000000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2009300000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2081800000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2049300000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2087100000	shares
CY2021Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.17
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.37
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	8.70
	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.82
CY2021Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	-0.01
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.17
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.37
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.70
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.81
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	4352000000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2844000000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	17834000000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	5860000000	USD
CY2021Q3	c	Dividends Allocatedto Employee Restricted And Deferred Shares That Contain Forfeitable Rightsto Dividends DividendsAllocatedtoEmployeeRestrictedAndDeferredSharesThatContainForfeitableRightstoDividends	8000000	USD
CY2020Q3	c	Dividends Allocatedto Employee Restricted And Deferred Shares That Contain Forfeitable Rightsto Dividends DividendsAllocatedtoEmployeeRestrictedAndDeferredSharesThatContainForfeitableRightstoDividends	7000000	USD
	c	Dividends Allocatedto Employee Restricted And Deferred Shares That Contain Forfeitable Rightsto Dividends DividendsAllocatedtoEmployeeRestrictedAndDeferredSharesThatContainForfeitableRightstoDividends	23000000	USD
	c	Dividends Allocatedto Employee Restricted And Deferred Shares That Contain Forfeitable Rightsto Dividends DividendsAllocatedtoEmployeeRestrictedAndDeferredSharesThatContainForfeitableRightstoDividends	22000000	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	4360000000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	2851000000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	17857000000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	5882000000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2009300000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2081800000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2049300000	shares
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	2087100000	shares
CY2021Q3	us-gaap	Incremental Common Shares Attributable To Written Put Options IncrementalCommonSharesAttributableToWrittenPutOptions	0	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Written Put Options IncrementalCommonSharesAttributableToWrittenPutOptions	0	shares
	us-gaap	Incremental Common Shares Attributable To Written Put Options IncrementalCommonSharesAttributableToWrittenPutOptions	0	shares
	us-gaap	Incremental Common Shares Attributable To Written Put Options IncrementalCommonSharesAttributableToWrittenPutOptions	0	shares
CY2021Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	16900000	shares
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	12500000	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	16000000.0	shares
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	13000000.0	shares
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2026200000	shares
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2094300000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2065300000	shares
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	2100100000	shares
CY2021Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.15
CY2020Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.36
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	8.64
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.81
CY2021Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
CY2020Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	-0.01
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.15
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.36
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.65
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.80
	us-gaap	Schedule Of Resale Agreements ScheduleOfResaleAgreements	<div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Securities borrowed and purchased under agreements to resell</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">, at their respective carrying values, consisted of the following:</span></div><div style="text-indent:18pt"><span><br/></span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:49.495%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:23.602%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:23.603%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-style:italic;font-weight:400;line-height:100%">In millions of dollars</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">September 30,<br/>2021</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">December 31, 2020</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Securities purchased under agreements to resell</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">234,191</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">204,655 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Deposits paid for securities borrowed</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">103,514</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">90,067 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">Total, net</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:700;line-height:100%;position:relative;top:-3.15pt;vertical-align:baseline">(1)</span></div></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">337,705</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">294,722 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Allowance for credit losses on securities purchased and borrowed</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:400;line-height:100%;position:relative;top:-3.15pt;vertical-align:baseline">(2)</span></div></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">(9)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">(10)</span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;border-bottom:2pt solid #000000;border-top:1pt solid #000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">Total, net of allowance</span></td><td style="background-color:#cceeff;border-bottom:2pt solid #000000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:2pt solid #000000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">337,696</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;border-bottom:2pt solid #000000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#cceeff;border-bottom:2pt solid #000000;border-top:1pt solid #000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:2pt solid #000000;border-top:1pt solid #000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">294,712 </span></td><td style="background-color:#cceeff;border-bottom:2pt solid #000000;border-top:1pt solid #000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div>
CY2021Q3	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	234191000000	USD
CY2020Q4	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	204655000000	USD
CY2021Q3	c	Deposits Paid For Securities Borrowed At Carrying Value Before Allowance For Credit Loss DepositsPaidForSecuritiesBorrowedAtCarryingValueBeforeAllowanceForCreditLoss	103514000000	USD
CY2020Q4	c	Deposits Paid For Securities Borrowed At Carrying Value Before Allowance For Credit Loss DepositsPaidForSecuritiesBorrowedAtCarryingValueBeforeAllowanceForCreditLoss	90067000000	USD
CY2021Q3	c	Carrying Value Of Federal Funds Sold Securities Purchased Under Agreements To Resell And Deposits Paid For Securities Borrowed Before Allowance For Credit Loss CarryingValueOfFederalFundsSoldSecuritiesPurchasedUnderAgreementsToResellAndDepositsPaidForSecuritiesBorrowedBeforeAllowanceForCreditLoss	337705000000	USD
CY2020Q4	c	Carrying Value Of Federal Funds Sold Securities Purchased Under Agreements To Resell And Deposits Paid For Securities Borrowed Before Allowance For Credit Loss CarryingValueOfFederalFundsSoldSecuritiesPurchasedUnderAgreementsToResellAndDepositsPaidForSecuritiesBorrowedBeforeAllowanceForCreditLoss	294722000000	USD
CY2021Q3	c	Carrying Value Of Federal Funds Sold Securities Purchased Under Agreements To Resell And Deposits Paid For Securities Borrowed Allowance For Credit Loss CarryingValueOfFederalFundsSoldSecuritiesPurchasedUnderAgreementsToResellAndDepositsPaidForSecuritiesBorrowedAllowanceForCreditLoss	9000000	USD
CY2020Q4	c	Carrying Value Of Federal Funds Sold Securities Purchased Under Agreements To Resell And Deposits Paid For Securities Borrowed Allowance For Credit Loss CarryingValueOfFederalFundsSoldSecuritiesPurchasedUnderAgreementsToResellAndDepositsPaidForSecuritiesBorrowedAllowanceForCreditLoss	10000000	USD
CY2021Q3	us-gaap	Carrying Value Of Federal Funds Sold Securities Purchased Under Agreements To Resell And Deposits Paid For Securities Borrowed CarryingValueOfFederalFundsSoldSecuritiesPurchasedUnderAgreementsToResellAndDepositsPaidForSecuritiesBorrowed	337696000000	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
	us-gaap	Schedule Of Repurchase Agreements ScheduleOfRepurchaseAgreements	<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Securities loaned and sold under agreements to repurchase</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">, at their respective carrying values, consisted of the following:</span></div><div><span><br/></span></div><div><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:49.495%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:23.602%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:23.603%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-style:italic;font-weight:400;line-height:100%">In millions of dollars</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">September 30,<br/>2021</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">December 31, 2020</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Securities sold under agreements to repurchase</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">188,998</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">181,194 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Deposits received for securities loaned</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">20,186</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">18,331 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">Total, net</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:700;line-height:100%;position:relative;top:-3.15pt;vertical-align:baseline">(1)</span></div></td><td style="background-color:#cceeff;border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">209,184</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#cceeff;border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">199,525 </span></td><td style="background-color:#cceeff;border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div><div style="padding-left:18pt;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:8pt;font-weight:400;line-height:120%">(1) The above tables do not include securities-for-securities lending transactions of $3.4 billion and $6.8 billion at September 30, 2021 and December 31, 2020, respectively, where the Company acts as lender and receives securities that can be sold or pledged as collateral. In these transactions, the Company recognizes the securities received at fair value within </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;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:8pt;font-weight:400;line-height:120%"> and the obligation to return those securities as a liability within </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-style:italic;font-weight:400;line-height:120%">Brokerage payables</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:120%">.</span></div><div style="padding-left:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:120%">(2) See Note 14 to the Consolidated Financial Statements for further information.</span></div>
CY2021Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	188998000000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	181194000000	USD
CY2021Q3	us-gaap	Deposits Received For Securities Loaned At Carrying Value DepositsReceivedForSecuritiesLoanedAtCarryingValue	20186000000	USD
CY2020Q4	us-gaap	Deposits Received For Securities Loaned At Carrying Value DepositsReceivedForSecuritiesLoanedAtCarryingValue	18331000000	USD
CY2021Q3	us-gaap	Carrying Value Of Federal Funds Purchased Securities Sold Under Agreements To Repurchase And Deposits Received For Securities Loaned CarryingValueOfFederalFundsPurchasedSecuritiesSoldUnderAgreementsToRepurchaseAndDepositsReceivedForSecuritiesLoaned	209184000000	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
CY2021Q3	us-gaap	Securities Received As Collateral SecuritiesReceivedAsCollateral	3400000000	USD
CY2020Q4	us-gaap	Securities Received As Collateral SecuritiesReceivedAsCollateral	6800000000	USD
CY2021Q3	us-gaap	Securities Purchased Under Agreements To Resell Gross SecuritiesPurchasedUnderAgreementsToResellGross	355702000000	USD
CY2021Q3	us-gaap	Securities Purchased Under Agreements To Resell Liability SecuritiesPurchasedUnderAgreementsToResellLiability	121511000000	USD
CY2021Q3	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	234191000000	USD
CY2021Q3	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Securities SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnSecurities	178517000000	USD
CY2021Q3	us-gaap	Securities Purchased Under Agreements To Resell Amount Offset Against Collateral SecuritiesPurchasedUnderAgreementsToResellAmountOffsetAgainstCollateral	55674000000	USD
CY2021Q3	us-gaap	Securities Borrowed Gross SecuritiesBorrowedGross	120159000000	USD
CY2021Q3	us-gaap	Securities Borrowed Liability SecuritiesBorrowedLiability	16645000000	USD
CY2021Q3	us-gaap	Deposits Paid For Securities Borrowed At Carrying Value DepositsPaidForSecuritiesBorrowedAtCarryingValue	103514000000	USD
CY2021Q3	us-gaap	Securities Borrowed Collateral Obligation To Return Securities SecuritiesBorrowedCollateralObligationToReturnSecurities	22145000000	USD
CY2021Q3	us-gaap	Securities Borrowed Amount Offset Against Collateral SecuritiesBorrowedAmountOffsetAgainstCollateral	81369000000	USD
CY2021Q3	c	Securities Purchased Under Agreements To Resell Securities Borrowed Gross SecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross	475861000000	USD
CY2021Q3	c	Securities Purchased Under Agreements To Resell Securities Borrowed Liability SecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability	138156000000	USD
CY2021Q3	us-gaap	Carrying Value Of Securities Purchased Under Agreements To Resell And Deposits Paid For Securities Borrowed CarryingValueOfSecuritiesPurchasedUnderAgreementsToResellAndDepositsPaidForSecuritiesBorrowed	337705000000	USD
CY2021Q3	c	Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Securities SecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities	200662000000	USD
CY2021Q3	c	Securities Purchased Under Agreements To Resell Securities Borrowed Amount Offset Against Collateral SecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral	137043000000	USD
CY2021Q3	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	310509000000	USD
CY2021Q3	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	121511000000	USD
CY2021Q3	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	188998000000	USD
CY2021Q3	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Securities SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities	87606000000	USD
CY2021Q3	us-gaap	Securities Sold Under Agreements To Repurchase Amount Offset Against Collateral SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral	101392000000	USD
CY2021Q3	us-gaap	Securities Loaned Gross SecuritiesLoanedGross	36831000000	USD
CY2021Q3	us-gaap	Securities Loaned Asset SecuritiesLoanedAsset	16645000000	USD
CY2021Q3	us-gaap	Deposits Received For Securities Loaned At Carrying Value DepositsReceivedForSecuritiesLoanedAtCarryingValue	20186000000	USD
CY2021Q3	us-gaap	Securities Loaned Collateral Right To Reclaim Securities SecuritiesLoanedCollateralRightToReclaimSecurities	3587000000	USD
CY2021Q3	us-gaap	Securities Loaned Amount Offset Against Collateral SecuritiesLoanedAmountOffsetAgainstCollateral	16599000000	USD
CY2021Q3	c	Securities Sold Under Agreements To Resell Securities Loaned Gross SecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	347340000000	USD
CY2021Q3	c	Securities Sold Under Agreements To Resell Securities Loaned Asset SecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	138156000000	USD
CY2021Q3	us-gaap	Carrying Value Of Securities Sold Under Repurchase Agreements And Deposits Received For Securities Loaned CarryingValueOfSecuritiesSoldUnderRepurchaseAgreementsAndDepositsReceivedForSecuritiesLoaned	209184000000	USD
CY2021Q3	c	Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities SecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	91193000000	USD
CY2021Q3	c	Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral SecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	117991000000	USD
CY2020Q4	us-gaap	Securities Purchased Under Agreements To Resell Gross SecuritiesPurchasedUnderAgreementsToResellGross	362025000000	USD
CY2020Q4	us-gaap	Securities Purchased Under Agreements To Resell Liability SecuritiesPurchasedUnderAgreementsToResellLiability	157370000000	USD
CY2020Q4	us-gaap	Securities Purchased Under Agreements To Resell SecuritiesPurchasedUnderAgreementsToResell	204655000000	USD
CY2020Q4	us-gaap	Securities Purchased Under Agreements To Resell Collateral Obligation To Return Securities SecuritiesPurchasedUnderAgreementsToResellCollateralObligationToReturnSecurities	159232000000	USD
CY2020Q4	us-gaap	Securities Purchased Under Agreements To Resell Amount Offset Against Collateral SecuritiesPurchasedUnderAgreementsToResellAmountOffsetAgainstCollateral	45423000000	USD
CY2020Q4	us-gaap	Securities Borrowed Gross SecuritiesBorrowedGross	96425000000	USD
CY2020Q4	us-gaap	Securities Borrowed Liability SecuritiesBorrowedLiability	6358000000	USD
CY2020Q4	us-gaap	Deposits Paid For Securities Borrowed At Carrying Value DepositsPaidForSecuritiesBorrowedAtCarryingValue	90067000000	USD
CY2020Q4	us-gaap	Securities Borrowed Collateral Obligation To Return Securities SecuritiesBorrowedCollateralObligationToReturnSecurities	13474000000	USD
CY2020Q4	us-gaap	Securities Borrowed Amount Offset Against Collateral SecuritiesBorrowedAmountOffsetAgainstCollateral	76593000000	USD
CY2020Q4	c	Securities Purchased Under Agreements To Resell Securities Borrowed Gross SecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedGross	458450000000	USD
CY2020Q4	c	Securities Purchased Under Agreements To Resell Securities Borrowed Liability SecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedLiability	163728000000	USD
CY2020Q4	us-gaap	Carrying Value Of Securities Purchased Under Agreements To Resell And Deposits Paid For Securities Borrowed CarryingValueOfSecuritiesPurchasedUnderAgreementsToResellAndDepositsPaidForSecuritiesBorrowed	294722000000	USD
CY2020Q4	c	Securities Purchased Under Agreements To Resell Securities Borrowed Collateral Obligation To Return Securities SecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedCollateralObligationToReturnSecurities	172706000000	USD
CY2020Q4	c	Securities Purchased Under Agreements To Resell Securities Borrowed Amount Offset Against Collateral SecuritiesPurchasedUnderAgreementsToResellSecuritiesBorrowedAmountOffsetAgainstCollateral	122016000000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Gross SecuritiesSoldUnderAgreementsToRepurchaseGross	338564000000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Asset SecuritiesSoldUnderAgreementsToRepurchaseAsset	157370000000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase SecuritiesSoldUnderAgreementsToRepurchase	181194000000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Collateral Right To Reclaim Securities SecuritiesSoldUnderAgreementsToRepurchaseCollateralRightToReclaimSecurities	95563000000	USD
CY2020Q4	us-gaap	Securities Sold Under Agreements To Repurchase Amount Offset Against Collateral SecuritiesSoldUnderAgreementsToRepurchaseAmountOffsetAgainstCollateral	85631000000	USD
CY2020Q4	us-gaap	Securities Loaned Gross SecuritiesLoanedGross	24689000000	USD
CY2020Q4	us-gaap	Securities Loaned Asset SecuritiesLoanedAsset	6358000000	USD
CY2020Q4	us-gaap	Deposits Received For Securities Loaned At Carrying Value DepositsReceivedForSecuritiesLoanedAtCarryingValue	18331000000	USD
CY2020Q4	us-gaap	Securities Loaned Collateral Right To Reclaim Securities SecuritiesLoanedCollateralRightToReclaimSecurities	7982000000	USD
CY2020Q4	us-gaap	Securities Loaned Amount Offset Against Collateral SecuritiesLoanedAmountOffsetAgainstCollateral	10349000000	USD
CY2020Q4	c	Securities Sold Under Agreements To Resell Securities Loaned Gross SecuritiesSoldUnderAgreementsToResellSecuritiesLoanedGross	363253000000	USD
CY2020Q4	c	Securities Sold Under Agreements To Resell Securities Loaned Asset SecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAsset	163728000000	USD
CY2020Q4	us-gaap	Carrying Value Of Securities Sold Under Repurchase Agreements And Deposits Received For Securities Loaned CarryingValueOfSecuritiesSoldUnderRepurchaseAgreementsAndDepositsReceivedForSecuritiesLoaned	199525000000	USD
CY2020Q4	c	Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities SecuritiesSoldUnderAgreementsToResellSecuritiesLoanedCollateralRightToReclaimSecurities	103545000000	USD
CY2020Q4	c	Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral SecuritiesSoldUnderAgreementsToResellSecuritiesLoanedAmountOffsetAgainstCollateral	95980000000	USD
CY2021Q3	us-gaap	Financial Assets Sold Under Agreements To Repurchase Gross Including Not Subject To Master Netting Arrangement FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	310509000000	USD
CY2021Q3	us-gaap	Securities Loaned Gross Including Not Subject To Master Netting Arrangement SecuritiesLoanedGrossIncludingNotSubjectToMasterNettingArrangement	36831000000	USD
CY2021Q3	us-gaap	Secured Borrowings Gross Including Not Subject To Master Netting Arrangement SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement	347340000000	USD
CY2020Q4	us-gaap	Financial Assets Sold Under Agreements To Repurchase Gross Including Not Subject To Master Netting Arrangement FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	338564000000	USD
CY2020Q4	us-gaap	Securities Loaned Gross Including Not Subject To Master Netting Arrangement SecuritiesLoanedGrossIncludingNotSubjectToMasterNettingArrangement	24689000000	USD
CY2020Q4	us-gaap	Secured Borrowings Gross Including Not Subject To Master Netting Arrangement SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement	363253000000	USD
CY2021Q3	us-gaap	Financial Assets Sold Under Agreements To Repurchase Gross Including Not Subject To Master Netting Arrangement FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	310509000000	USD
CY2021Q3	us-gaap	Securities Loaned Gross Including Not Subject To Master Netting Arrangement SecuritiesLoanedGrossIncludingNotSubjectToMasterNettingArrangement	36831000000	USD
CY2021Q3	us-gaap	Secured Borrowings Gross Including Not Subject To Master Netting Arrangement SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement	347340000000	USD
CY2020Q4	us-gaap	Financial Assets Sold Under Agreements To Repurchase Gross Including Not Subject To Master Netting Arrangement FinancialAssetsSoldUnderAgreementsToRepurchaseGrossIncludingNotSubjectToMasterNettingArrangement	338564000000	USD
CY2020Q4	us-gaap	Securities Loaned Gross Including Not Subject To Master Netting Arrangement SecuritiesLoanedGrossIncludingNotSubjectToMasterNettingArrangement	24689000000	USD
CY2020Q4	us-gaap	Secured Borrowings Gross Including Not Subject To Master Netting Arrangement SecuredBorrowingsGrossIncludingNotSubjectToMasterNettingArrangement	363253000000	USD
	us-gaap	Due To And From Broker Dealers And Clearing Organizations Disclosure DueToAndFromBrokerDealersAndClearingOrganizationsDisclosure	BROKERAGE RECEIVABLES AND BROKERAGE PAYABLES<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company has receivables and payables for financial instruments sold to and purchased from brokers, dealers and customers, which arise in the ordinary course of business. </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 additional information on these receivables and payables, see Note 12 to the Consolidated Financial Statements in Citi’s 2020 Annual Report on Form 10-K.</span></div><div style="text-indent:18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Brokerage receivables </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">and </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Brokerage payables</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> consisted of the following:</span></div><div style="margin-top:5pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:100.000%"><tr><td style="width:1.0%"/><td style="width:49.495%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:23.602%"/><td style="width:0.1%"/><td style="width:1.0%"/><td style="width:23.603%"/><td style="width:0.1%"/></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-style:italic;font-weight:400;line-height:100%">In millions of dollars</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">September 30,<br/>2021</span></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">December 31, 2020</span></td></tr><tr><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Receivables from customers</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">21,833</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">18,097 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Receivables from brokers, dealers and clearing organizations</span></td><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">37,654</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#ffffff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">26,709 </span></td><td style="background-color:#ffffff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">Total brokerage receivables</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:700;line-height:100%;position:relative;top:-3.15pt;vertical-align:baseline">(1)</span></div></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">59,487</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">44,806 </span></td><td style="background-color:#cceeff;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Payables to customers</span></td><td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">48,300</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">39,319 </span></td><td style="background-color:#ffffff;border-top:2pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#cceeff;padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">Payables to brokers, dealers and clearing organizations</span></td><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">12,201</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td colspan="2" style="background-color:#cceeff;padding:2px 0 2px 1pt;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">11,165 </span></td><td style="background-color:#cceeff;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr><tr><td colspan="3" style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:middle"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">Total brokerage payables</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:5.85pt;font-weight:700;line-height:100%;position:relative;top:-3.15pt;vertical-align:baseline">(1)</span></div></td><td style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:700;line-height:100%">60,501</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%"> </span></td><td style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/><td style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:2px 0 2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">$</span></td><td style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:2px 0;text-align:right;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:100%">50,484 </span></td><td style="background-color:#ffffff;border-bottom:2pt solid #000000;border-top:1pt solid #000000;padding:2px 1pt 2px 0;text-align:right;vertical-align:bottom"/></tr></table></div>(1) Includes brokerage receivables and payables recorded by Citi broker-dealer entities that are accounted for in accordance with the AICPA Accounting Guide for Brokers and Dealers in Securities as codified in ASC 940-320.
CY2021Q3	us-gaap	Receivables From Customers ReceivablesFromCustomers	21833000000	USD
CY2020Q4	us-gaap	Receivables From Customers ReceivablesFromCustomers	18097000000	USD
CY2021Q3	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	37654000000	USD
CY2020Q4	us-gaap	Receivables From Brokers Dealers And Clearing Organizations ReceivablesFromBrokersDealersAndClearingOrganizations	26709000000	USD
CY2021Q3	c	Brokerage Receivables BrokerageReceivables	59487000000	USD
CY2020Q4	c	Brokerage Receivables BrokerageReceivables	44806000000	USD
CY2021Q3	srt	Payables To Customers PayablesToCustomers	48300000000	USD
CY2020Q4	srt	Payables To Customers PayablesToCustomers	39319000000	USD
CY2021Q3	srt	Payables To Broker Dealers And Clearing Organizations PayablesToBrokerDealersAndClearingOrganizations	12201000000	USD
CY2020Q4	srt	Payables To Broker Dealers And Clearing Organizations PayablesToBrokerDealersAndClearingOrganizations	11165000000	USD
CY2021Q3	c	Brokerage Payables BrokeragePayables	60501000000	USD
CY2020Q4	c	Brokerage Payables BrokeragePayables	50484000000	USD
CY2021Q3	c	Investments Excluding Trading Securities InvestmentsExcludingTradingSecurities	500849000000	USD
CY2020Q4	c	Investments Excluding Trading Securities InvestmentsExcludingTradingSecurities	447359000000	USD
CY2021Q3	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	1777000000	USD
CY2020Q3	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	1752000000	USD
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	5152000000	USD
	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	5915000000	USD
CY2021Q3	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	73000000	USD
CY2020Q3	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	85000000	USD
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	196000000	USD
	us-gaap	Interest Income Securities Tax Exempt InterestIncomeSecuritiesTaxExempt	231000000	USD
CY2021Q3	us-gaap	Dividend Income Operating DividendIncomeOperating	35000000	USD
CY2020Q3	us-gaap	Dividend Income Operating DividendIncomeOperating	33000000	USD
	us-gaap	Dividend Income Operating DividendIncomeOperating	107000000	USD
	us-gaap	Dividend Income Operating DividendIncomeOperating	102000000	USD
CY2021Q3	c	Interest And Dividend Income Securities Excluding Trading Securities InterestAndDividendIncomeSecuritiesExcludingTradingSecurities	1885000000	USD
CY2020Q3	c	Interest And Dividend Income Securities Excluding Trading Securities InterestAndDividendIncomeSecuritiesExcludingTradingSecurities	1870000000	USD
	c	Interest And Dividend Income Securities Excluding Trading Securities InterestAndDividendIncomeSecuritiesExcludingTradingSecurities	5455000000	USD
	c	Interest And Dividend Income Securities Excluding Trading Securities InterestAndDividendIncomeSecuritiesExcludingTradingSecurities	6248000000	USD
CY2021Q3	c	Gross Realized Gain On Marketable Securities And Cost Method Investments Excluding Other Than Temporary Impairments And Other Investments GrossRealizedGainOnMarketableSecuritiesAndCostMethodInvestmentsExcludingOtherThanTemporaryImpairmentsAndOtherInvestments	142000000	USD
CY2020Q3	c	Gross Realized Gain On Marketable Securities And Cost Method Investments Excluding Other Than Temporary Impairments And Other Investments GrossRealizedGainOnMarketableSecuritiesAndCostMethodInvestmentsExcludingOtherThanTemporaryImpairmentsAndOtherInvestments	381000000	USD
	c	Gross Realized Gain On Marketable Securities And Cost Method Investments Excluding Other Than Temporary Impairments And Other Investments GrossRealizedGainOnMarketableSecuritiesAndCostMethodInvestmentsExcludingOtherThanTemporaryImpairmentsAndOtherInvestments	757000000	USD
	c	Gross Realized Gain On Marketable Securities And Cost Method Investments Excluding Other Than Temporary Impairments And Other Investments GrossRealizedGainOnMarketableSecuritiesAndCostMethodInvestmentsExcludingOtherThanTemporaryImpairmentsAndOtherInvestments	1619000000	USD
CY2021Q3	c	Gross Realized Losson Marketable Securitiesand Cost Method Investments Excluding Otherthan Temporary Impairmentsand Other Investments GrossRealizedLossonMarketableSecuritiesandCostMethodInvestmentsExcludingOtherthanTemporaryImpairmentsandOtherInvestments	25000000	USD
CY2020Q3	c	Gross Realized Losson Marketable Securitiesand Cost Method Investments Excluding Otherthan Temporary Impairmentsand Other Investments GrossRealizedLossonMarketableSecuritiesandCostMethodInvestmentsExcludingOtherthanTemporaryImpairmentsandOtherInvestments	77000000	USD
	c	Gross Realized Losson Marketable Securitiesand Cost Method Investments Excluding Otherthan Temporary Impairmentsand Other Investments GrossRealizedLossonMarketableSecuritiesandCostMethodInvestmentsExcludingOtherthanTemporaryImpairmentsandOtherInvestments	102000000	USD
	c	Gross Realized Losson Marketable Securitiesand Cost Method Investments Excluding Otherthan Temporary Impairmentsand Other Investments GrossRealizedLossonMarketableSecuritiesandCostMethodInvestmentsExcludingOtherthanTemporaryImpairmentsandOtherInvestments	135000000	USD
CY2021Q3	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	117000000	USD
CY2020Q3	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	304000000	USD
	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	655000000	USD
	us-gaap	Marketable Securities Realized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesRealizedGainLossExcludingOtherThanTemporaryImpairments	1484000000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	108590000000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	869000000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	30431000000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	569000000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	139021000000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	1438000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	60316000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	267000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	4760000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	208000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	65076000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	475000000	USD
CY2021Q3	c	Debt Securities Held To Maturity Net Of Allowance For Credit Losses DebtSecuritiesHeldToMaturityNetOfAllowanceForCreditLosses	198056000000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	2114000000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	1446000000	USD
CY2021Q3	c	Debt Securities Held To Maturity Fair Value Net Of Allowance For Credit Losses DebtSecuritiesHeldToMaturityFairValueNetOfAllowanceForCreditLosses	198724000000	USD
CY2020Q4	c	Debt Securities Held To Maturity Net Of Allowance For Credit Losses DebtSecuritiesHeldToMaturityNetOfAllowanceForCreditLosses	104943000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	3022000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	175000000	USD
CY2020Q4	c	Debt Securities Held To Maturity Fair Value Net Of Allowance For Credit Losses DebtSecuritiesHeldToMaturityFairValueNetOfAllowanceForCreditLosses	107790000000	USD
CY2021Q3	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	73000000	USD
CY2020Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	86000000	USD
CY2021Q3	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	198056000000	USD
CY2021Q3	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	198724000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	104943000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	107790000000	USD
CY2021Q3	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	73000000	USD
CY2020Q4	us-gaap	Debt Securities Held To Maturity Allowance For Credit Loss DebtSecuritiesHeldToMaturityAllowanceForCreditLoss	86000000	USD
CY2021Q3	c	Other Than Temporary Impairment Losses Investments With Intent Not To Sell OtherThanTemporaryImpairmentLossesInvestmentsWithIntentNotToSell	0	USD
CY2020Q3	c	Other Than Temporary Impairment Losses Investments With Intent Not To Sell OtherThanTemporaryImpairmentLossesInvestmentsWithIntentNotToSell	0	USD
CY2021Q3	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	0	USD
CY2020Q3	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	0	USD
CY2021Q3	c	Other Than Temporary Impairment Losses Investments Not Being Sold Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsNotBeingSoldPortionRecognizedInEarningsNet	0	USD
CY2020Q3	c	Other Than Temporary Impairment Losses Investments Not Being Sold Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsNotBeingSoldPortionRecognizedInEarningsNet	0	USD
CY2021Q3	c	Other Than Temporary Impairment Losses Investments With Intent To Sell OtherThanTemporaryImpairmentLossesInvestmentsWithIntentToSell	21000000	USD
CY2020Q3	c	Other Than Temporary Impairment Losses Investments With Intent To Sell OtherThanTemporaryImpairmentLossesInvestmentsWithIntentToSell	30000000	USD
CY2021Q3	c	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net And Equity Method Investment Other Than Temporary Impairment OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAndEquityMethodInvestmentOtherThanTemporaryImpairment	21000000	USD
CY2020Q3	c	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net And Equity Method Investment Other Than Temporary Impairment OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAndEquityMethodInvestmentOtherThanTemporaryImpairment	30000000	USD
	c	Other Than Temporary Impairment Losses Investments With Intent Not To Sell OtherThanTemporaryImpairmentLossesInvestmentsWithIntentNotToSell	0	USD
	c	Other Than Temporary Impairment Losses Investments With Intent Not To Sell OtherThanTemporaryImpairmentLossesInvestmentsWithIntentNotToSell	0	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	0	USD
	us-gaap	Other Than Temporary Impairment Losses Investments Portion In Other Comprehensive Income Loss Before Tax Including Portion Attributable To Noncontrolling Interest OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest	0	USD
	c	Other Than Temporary Impairment Losses Investments Not Being Sold Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsNotBeingSoldPortionRecognizedInEarningsNet	0	USD
	c	Other Than Temporary Impairment Losses Investments Not Being Sold Portion Recognized In Earnings Net OtherThanTemporaryImpairmentLossesInvestmentsNotBeingSoldPortionRecognizedInEarningsNet	0	USD
	c	Other Than Temporary Impairment Losses Investments With Intent To Sell OtherThanTemporaryImpairmentLossesInvestmentsWithIntentToSell	99000000	USD
	c	Other Than Temporary Impairment Losses Investments With Intent To Sell OtherThanTemporaryImpairmentLossesInvestmentsWithIntentToSell	101000000	USD
	c	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net And Equity Method Investment Other Than Temporary Impairment OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAndEquityMethodInvestmentOtherThanTemporaryImpairment	99000000	USD
	c	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net And Equity Method Investment Other Than Temporary Impairment OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetAndEquityMethodInvestmentOtherThanTemporaryImpairment	101000000	USD
CY2021Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	5000000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Writeoff DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoff	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossRecovery	0	USD
CY2021Q3	c	Debt Securities Available For Sale Allowance For Credit Loss Writeoff After Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoffAfterRecovery	0	USD
CY2021Q3	c	Debt Securities Available For Sale Allowance For Credit Loss Writeoff After Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoffAfterRecovery	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	1000000	USD
CY2021Q3	c	Debt Securities Available For Sale Reserve Builds Releases Net DebtSecuritiesAvailableForSaleReserveBuildsReleasesNet	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Change In Present Value Expense Reversal DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal	1000000	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Purchased With Credit Deterioration Increase DebtSecuritiesAvailableForSaleAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	6000000	USD
CY2020Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	5000000	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Writeoff DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoff	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossRecovery	0	USD
	c	Debt Securities Available For Sale Allowance For Credit Loss Writeoff After Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoffAfterRecovery	0	USD
	c	Debt Securities Available For Sale Allowance For Credit Loss Writeoff After Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoffAfterRecovery	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	1000000	USD
	c	Debt Securities Available For Sale Reserve Builds Releases Net DebtSecuritiesAvailableForSaleReserveBuildsReleasesNet	0	USD
	us-gaap	Debt Securities Available For Sale Change In Present Value Expense Reversal DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal	1000000	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Purchased With Credit Deterioration Increase DebtSecuritiesAvailableForSaleAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
CY2021Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	6000000	USD
CY2020Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	8000000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Writeoff DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoff	0	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossRecovery	1000000	USD
CY2020Q3	c	Debt Securities Available For Sale Allowance For Credit Loss Writeoff After Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoffAfterRecovery	-1000000	USD
CY2020Q3	c	Debt Securities Available For Sale Allowance For Credit Loss Writeoff After Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoffAfterRecovery	-1000000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	0	USD
CY2020Q3	c	Debt Securities Available For Sale Reserve Builds Releases Net DebtSecuritiesAvailableForSaleReserveBuildsReleasesNet	-3000000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Change In Present Value Expense Reversal DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal	-4000000	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Purchased With Credit Deterioration Increase DebtSecuritiesAvailableForSaleAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	5000000	USD
CY2019Q4	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Writeoff DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoff	0	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossRecovery	1000000	USD
	c	Debt Securities Available For Sale Allowance For Credit Loss Writeoff After Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoffAfterRecovery	-1000000	USD
	c	Debt Securities Available For Sale Allowance For Credit Loss Writeoff After Recovery DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoffAfterRecovery	-1000000	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	8000000	USD
	c	Debt Securities Available For Sale Reserve Builds Releases Net DebtSecuritiesAvailableForSaleReserveBuildsReleasesNet	-3000000	USD
	us-gaap	Debt Securities Available For Sale Change In Present Value Expense Reversal DebtSecuritiesAvailableForSaleChangeInPresentValueExpenseReversal	4000000	USD
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Purchased With Credit Deterioration Increase DebtSecuritiesAvailableForSaleAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
CY2020Q3	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss DebtSecuritiesAvailableForSaleAllowanceForCreditLoss	5000000	USD
CY2021Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Amount EquitySecuritiesWithoutReadilyDeterminableFairValueAmount	1392000000	USD
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CY2021Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	9000000	USD
CY2020Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	2000000	USD
	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	13000000	USD
	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount	55000000	USD
CY2021Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount	0	USD
CY2020Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount	0	USD
	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount	0	USD
	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount	19000000	USD
CY2021Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	86000000	USD
CY2020Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	40000000	USD
	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	382000000	USD
	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Annual Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount	82000000	USD
CY2021Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Impairment Loss Cumulative Amount EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossCumulativeAmount	76000000	USD
CY2021Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Downward Price Adjustment Cumulative Amount EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentCumulativeAmount	53000000	USD
CY2021Q3	us-gaap	Equity Securities Without Readily Determinable Fair Value Upward Price Adjustment Cumulative Amount EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentCumulativeAmount	861000000	USD
CY2020Q3	c	Non Marketable Equity Securities Impairment Recognized In Earnings NonMarketableEquitySecuritiesImpairmentRecognizedInEarnings	0	USD
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CY2021Q3	c	Non Marketable Equity Securities Impairment Recognized In Earnings NonMarketableEquitySecuritiesImpairmentRecognizedInEarnings	0	USD
CY2021Q3	us-gaap	Fair Value Investments Entities That Calculate Net Asset Value Per Share Unfunded Committments FairValueInvestmentsEntitiesThatCalculateNetAssetValuePerShareUnfundedCommittments	61000000	USD
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CY2021Q3	c	Loan Categories Number LoanCategoriesNumber	2	category
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CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	26298000000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	24956000000	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
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12783000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1389000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2367000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	5441000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	5441000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	7374000000	USD
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CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	428000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	448000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1412000000	USD
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CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	961000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	1919000000	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	4029000000	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	6139000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	961000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	1919000000	USD
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CY2021Q3	c	Financing Receivable Reserve Buildsor Releases Net FinancingReceivableReserveBuildsorReleasesNet	-1010000000	USD
CY2020Q3	c	Financing Receivable Reserve Buildsor Releases Net FinancingReceivableReserveBuildsorReleasesNet	164000000	USD
	c	Financing Receivable Reserve Buildsor Releases Net FinancingReceivableReserveBuildsorReleasesNet	-6262000000	USD
	c	Financing Receivable Reserve Buildsor Releases Net FinancingReceivableReserveBuildsorReleasesNet	-6262000000	USD
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CY2021Q3	c	Financing Receivable Specific Reserve Buildsor Releases Net FinancingReceivableSpecificReserveBuildsorReleasesNet	-139000000	USD
CY2020Q3	c	Financing Receivable Specific Reserve Buildsor Releases Net FinancingReceivableSpecificReserveBuildsorReleasesNet	-152000000	USD
	c	Financing Receivable Specific Reserve Buildsor Releases Net FinancingReceivableSpecificReserveBuildsorReleasesNet	-560000000	USD
	c	Financing Receivable Specific Reserve Buildsor Releases Net FinancingReceivableSpecificReserveBuildsorReleasesNet	-560000000	USD
	c	Financing Receivable Specific Reserve Buildsor Releases Net FinancingReceivableSpecificReserveBuildsorReleasesNet	706000000	USD
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CY2021Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-188000000	USD
CY2020Q3	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	1931000000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	-2793000000	USD
	us-gaap	Provision For Loan Losses Expensed ProvisionForLoanLossesExpensed	16298000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	4000000	USD
CY2021Q3	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	-374000000	USD
CY2020Q3	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	116000000	USD
	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	-419000000	USD
	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	-419000000	USD
	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	-278000000	USD
	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	-278000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	17715000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	26426000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	17715000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	26426000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	26426000000	USD
CY2021Q2	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	2073000000	USD
CY2020Q2	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	1859000000	USD
CY2020Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	2655000000	USD
CY2019Q4	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	1456000000	USD
CY2021Q3	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	-13000000	USD
CY2020Q3	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	424000000	USD
	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	-595000000	USD
	us-gaap	Off Balance Sheet Credit Loss Liability Credit Loss Expense Reversal OffBalanceSheetCreditLossLiabilityCreditLossExpenseReversal	1094000000	USD
CY2021Q3	c	Off Balance Sheet Credit Loss Liability Other Adjustments Net OffBalanceSheetCreditLossLiabilityOtherAdjustmentsNet	3000000	USD
CY2020Q3	c	Off Balance Sheet Credit Loss Liability Other Adjustments Net OffBalanceSheetCreditLossLiabilityOtherAdjustmentsNet	16000000	USD
	c	Off Balance Sheet Credit Loss Liability Other Adjustments Net OffBalanceSheetCreditLossLiabilityOtherAdjustmentsNet	3000000	USD
	c	Off Balance Sheet Credit Loss Liability Other Adjustments Net OffBalanceSheetCreditLossLiabilityOtherAdjustmentsNet	-57000000	USD
CY2021Q3	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	2063000000	USD
CY2020Q3	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	2299000000	USD
CY2021Q3	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	2063000000	USD
CY2020Q3	us-gaap	Off Balance Sheet Credit Loss Liability OffBalanceSheetCreditLossLiability	2299000000	USD
CY2021Q3	c	Financing Receivable And Off Balance Sheet Liability Allowances For Credit Loss FinancingReceivableAndOffBalanceSheetLiabilityAllowancesForCreditLoss	19778000000	USD
CY2020Q3	c	Financing Receivable And Off Balance Sheet Liability Allowances For Credit Loss FinancingReceivableAndOffBalanceSheetLiabilityAllowancesForCreditLoss	28725000000	USD
CY2021Q3	c	Financing Receivable And Off Balance Sheet Liability Allowances For Credit Loss FinancingReceivableAndOffBalanceSheetLiabilityAllowancesForCreditLoss	19778000000	USD
CY2020Q3	c	Financing Receivable And Off Balance Sheet Liability Allowances For Credit Loss FinancingReceivableAndOffBalanceSheetLiabilityAllowancesForCreditLoss	28725000000	USD
CY2021Q3	c	Financing Receivable Allowance For Credit Loss Loans Sold FinancingReceivableAllowanceForCreditLossLoansSold	278000000	USD
CY2020Q3	c	Financing Receivable Allowance For Credit Loss Loans Sold FinancingReceivableAllowanceForCreditLossLoansSold	0	USD
	c	Financing Receivable Allowance For Credit Loss Loans Sold FinancingReceivableAllowanceForCreditLossLoansSold	278000000	USD
	c	Financing Receivable Allowance For Credit Loss Loans Sold FinancingReceivableAllowanceForCreditLossLoansSold	4000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Foreign Currency Translation FinancingReceivableAllowanceForCreditLossForeignCurrencyTranslation	-93000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Loss Foreign Currency Translation FinancingReceivableAllowanceForCreditLossForeignCurrencyTranslation	116000000	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Foreign Currency Translation FinancingReceivableAllowanceForCreditLossForeignCurrencyTranslation	-139000000	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Foreign Currency Translation FinancingReceivableAllowanceForCreditLossForeignCurrencyTranslation	-279000000	USD
CY2021Q3	c	Financing Receivable Adjustments Miscellaneous Other FinancingReceivableAdjustmentsMiscellaneousOther	-3000000	USD
CY2020Q3	c	Financing Receivable Adjustments Miscellaneous Other FinancingReceivableAdjustmentsMiscellaneousOther	0	USD
	c	Financing Receivable Adjustments Miscellaneous Other FinancingReceivableAdjustmentsMiscellaneousOther	-2000000	USD
	c	Financing Receivable Adjustments Miscellaneous Other FinancingReceivableAdjustmentsMiscellaneousOther	5000000	USD
CY2021Q3	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	-374000000	USD
CY2020Q3	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	116000000	USD
	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	-419000000	USD
	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	-419000000	USD
	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	-278000000	USD
	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	-278000000	USD
CY2021Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	19238000000	USD
CY2020Q2	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	26298000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1389000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	2367000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	428000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	448000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	961000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	1919000000	USD
CY2021Q3	c	Financing Receivable Reserve Buildsor Releases Net FinancingReceivableReserveBuildsorReleasesNet	-1010000000	USD
CY2020Q3	c	Financing Receivable Reserve Buildsor Releases Net FinancingReceivableReserveBuildsorReleasesNet	164000000	USD
CY2021Q3	c	Financing Receivable Specific Reserve Buildsor Releases Net FinancingReceivableSpecificReserveBuildsorReleasesNet	-139000000	USD
CY2020Q3	c	Financing Receivable Specific Reserve Buildsor Releases Net FinancingReceivableSpecificReserveBuildsorReleasesNet	-152000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
CY2021Q3	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	-374000000	USD
CY2020Q3	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	116000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	17715000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	26426000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	26426000000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	24956000000	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
CY2019Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	12783000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	5441000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	5441000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	7374000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	7374000000	USD
	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1412000000	USD
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	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	1235000000	USD
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	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	6139000000	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Writeoff After Recovery FinancingReceivableAllowanceForCreditLossWriteoffAfterRecovery	6139000000	USD
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	c	Financing Receivable Reserve Buildsor Releases Net FinancingReceivableReserveBuildsorReleasesNet	-6262000000	USD
	c	Financing Receivable Reserve Buildsor Releases Net FinancingReceivableReserveBuildsorReleasesNet	9453000000	USD
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	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	0	USD
	us-gaap	Financing Receivable Allowance For Credit Loss Purchased With Credit Deterioration Increase FinancingReceivableAllowanceForCreditLossPurchasedWithCreditDeteriorationIncrease	4000000	USD
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	c	Financing Receivable Allowance For Credit Loss Adjustments Other FinancingReceivableAllowanceForCreditLossAdjustmentsOther	-278000000	USD
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CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	17715000000	USD
CY2020Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	26426000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	16509000000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	23094000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	1206000000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	1860000000	USD
CY2021Q3	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	17715000000	USD
CY2020Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	24956000000	USD
CY2021Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	651226000000	USD
CY2020Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	660562000000	USD
CY2021Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	6252000000	USD
CY2020Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	8326000000	USD
CY2021Q3	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	7159000000	USD
CY2020Q4	us-gaap	Loans Receivable Fair Value Disclosure LoansReceivableFairValueDisclosure	6854000000	USD
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CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-52000000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-413000000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	2723000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	-265000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	-307000000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	-1219000000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification Before Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationBeforeTaxParent	2267000000	USD
CY2021Q3	us-gaap	Credit Risk Derivative Assets At Fair Value CreditRiskDerivativeAssetsAtFairValue	10242000000	USD
CY2021Q3	us-gaap	Credit Risk Derivative Liabilities At Fair Value CreditRiskDerivativeLiabilitiesAtFairValue	10649000000	USD
CY2021Q3	c	Credit Derivatives Notional Amount Purchased Credit Protection CreditDerivativesNotionalAmountPurchasedCreditProtection	705590000000	USD
CY2021Q3	us-gaap	Credit Derivative Maximum Exposure Undiscounted CreditDerivativeMaximumExposureUndiscounted	634497000000	USD
CY2021Q3	us-gaap	Credit Risk Derivative Assets At Fair Value CreditRiskDerivativeAssetsAtFairValue	10242000000	USD
CY2021Q3	us-gaap	Credit Risk Derivative Liabilities At Fair Value CreditRiskDerivativeLiabilitiesAtFairValue	10649000000	USD
CY2021Q3	c	Credit Derivatives Notional Amount Purchased Credit Protection CreditDerivativesNotionalAmountPurchasedCreditProtection	705590000000	USD
CY2021Q3	us-gaap	Credit Derivative Maximum Exposure Undiscounted CreditDerivativeMaximumExposureUndiscounted	634497000000	USD
CY2021Q3	us-gaap	Credit Risk Derivative Assets At Fair Value CreditRiskDerivativeAssetsAtFairValue	10242000000	USD
CY2021Q3	us-gaap	Credit Risk Derivative Liabilities At Fair Value CreditRiskDerivativeLiabilitiesAtFairValue	10649000000	USD
CY2021Q3	c	Credit Derivatives Notional Amount Purchased Credit Protection CreditDerivativesNotionalAmountPurchasedCreditProtection	705590000000	USD
CY2021Q3	us-gaap	Credit Derivative Maximum Exposure Undiscounted CreditDerivativeMaximumExposureUndiscounted	634497000000	USD
CY2021Q3	us-gaap	Credit Risk Derivative Assets At Fair Value CreditRiskDerivativeAssetsAtFairValue	10242000000	USD
CY2021Q3	us-gaap	Credit Risk Derivative Liabilities At Fair Value CreditRiskDerivativeLiabilitiesAtFairValue	10649000000	USD
CY2021Q3	c	Credit Derivatives Notional Amount Purchased Credit Protection CreditDerivativesNotionalAmountPurchasedCreditProtection	705590000000	USD
CY2021Q3	us-gaap	Credit Derivative Maximum Exposure Undiscounted CreditDerivativeMaximumExposureUndiscounted	634497000000	USD
CY2020Q4	us-gaap	Credit Risk Derivative Assets At Fair Value CreditRiskDerivativeAssetsAtFairValue	9789000000	USD
CY2020Q4	us-gaap	Credit Risk Derivative Liabilities At Fair Value CreditRiskDerivativeLiabilitiesAtFairValue	10129000000	USD
CY2020Q4	c	Credit Derivatives Notional Amount Purchased Credit Protection CreditDerivativesNotionalAmountPurchasedCreditProtection	612770000000	USD
CY2020Q4	us-gaap	Credit Derivative Maximum Exposure Undiscounted CreditDerivativeMaximumExposureUndiscounted	543607000000	USD
CY2020Q4	us-gaap	Credit Risk Derivative Assets At Fair Value CreditRiskDerivativeAssetsAtFairValue	9789000000	USD
CY2020Q4	us-gaap	Credit Risk Derivative Liabilities At Fair Value CreditRiskDerivativeLiabilitiesAtFairValue	10129000000	USD
CY2020Q4	c	Credit Derivatives Notional Amount Purchased Credit Protection CreditDerivativesNotionalAmountPurchasedCreditProtection	612770000000	USD
CY2020Q4	us-gaap	Credit Derivative Maximum Exposure Undiscounted CreditDerivativeMaximumExposureUndiscounted	543607000000	USD
CY2020Q4	us-gaap	Credit Risk Derivative Assets At Fair Value CreditRiskDerivativeAssetsAtFairValue	9789000000	USD
CY2020Q4	us-gaap	Credit Risk Derivative Liabilities At Fair Value CreditRiskDerivativeLiabilitiesAtFairValue	10129000000	USD
CY2020Q4	c	Credit Derivatives Notional Amount Purchased Credit Protection CreditDerivativesNotionalAmountPurchasedCreditProtection	612770000000	USD
CY2020Q4	us-gaap	Credit Derivative Maximum Exposure Undiscounted CreditDerivativeMaximumExposureUndiscounted	543607000000	USD
CY2020Q4	us-gaap	Credit Risk Derivative Assets At Fair Value CreditRiskDerivativeAssetsAtFairValue	9789000000	USD
CY2020Q4	us-gaap	Credit Risk Derivative Liabilities At Fair Value CreditRiskDerivativeLiabilitiesAtFairValue	10129000000	USD
CY2020Q4	c	Credit Derivatives Notional Amount Purchased Credit Protection CreditDerivativesNotionalAmountPurchasedCreditProtection	612770000000	USD
CY2020Q4	us-gaap	Credit Derivative Maximum Exposure Undiscounted CreditDerivativeMaximumExposureUndiscounted	543607000000	USD
CY2021Q3	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	20000000000	USD
CY2020Q4	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	25000000000	USD
CY2020Q4	c	Derivative Funding Valuation Adjustment Derivative Liabilities DerivativeFundingValuationAdjustmentDerivativeLiabilities	67000000	USD
CY2020Q4	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Liabilities DerivativeCreditRiskValuationAdjustmentDerivativeLiabilities	403000000	USD
CY2021Q3	c	Derivative Funding Valuation Adjustment Derivative Liabilities DerivativeFundingValuationAdjustmentDerivativeLiabilities	80000000	USD
CY2021Q3	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	18000000000	USD
CY2020Q4	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	22000000000	USD
	c	Credit Derivatives Number Of Rating Agencies CreditDerivativesNumberOfRatingAgencies	3	agency
CY2021Q3	us-gaap	Additional Collateral Aggregate Fair Value AdditionalCollateralAggregateFairValue	1500000000	USD
CY2021Q3	c	Derivative Collateral Obligation To Return Cash Portion To Be Segregated DerivativeCollateralObligationToReturnCashPortionToBeSegregated	100000000	USD
CY2021Q3	c	Credit Derivative Aggregate Cash Obligations And Collateral Requirements CreditDerivativeAggregateCashObligationsAndCollateralRequirements	1600000000	USD
CY2021Q3	c	Counterparty Derivative Credit Risk Valuation Adjustment Derivative Assets CounterpartyDerivativeCreditRiskValuationAdjustmentDerivativeAssets	671000000	USD
CY2020Q4	c	Counterparty Derivative Credit Risk Valuation Adjustment Derivative Assets CounterpartyDerivativeCreditRiskValuationAdjustmentDerivativeAssets	800000000	USD
CY2021Q3	c	Derivative Funding Valuation Adjustment Derivative Assets DerivativeFundingValuationAdjustmentDerivativeAssets	459000000	USD
CY2020Q4	c	Derivative Funding Valuation Adjustment Derivative Assets DerivativeFundingValuationAdjustmentDerivativeAssets	525000000	USD
CY2021Q3	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Liabilities DerivativeCreditRiskValuationAdjustmentDerivativeLiabilities	375000000	USD
CY2021Q3	c	Counterparty Derivative Credit Risk Valuation Adjustment Gain Loss CounterpartyDerivativeCreditRiskValuationAdjustmentGainLoss	25000000	USD
CY2020Q3	c	Counterparty Derivative Credit Risk Valuation Adjustment Gain Loss CounterpartyDerivativeCreditRiskValuationAdjustmentGainLoss	104000000	USD
	c	Counterparty Derivative Credit Risk Valuation Adjustment Gain Loss CounterpartyDerivativeCreditRiskValuationAdjustmentGainLoss	68000000	USD
CY2021Q3	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Assets DerivativeCreditRiskValuationAdjustmentDerivativeAssets	675000000	USD
CY2020Q4	us-gaap	Derivative Credit Risk Valuation Adjustment Derivative Assets DerivativeCreditRiskValuationAdjustmentDerivativeAssets	855000000	USD
	c	Counterparty Derivative Credit Risk Valuation Adjustment Gain Loss CounterpartyDerivativeCreditRiskValuationAdjustmentGainLoss	-134000000	USD
CY2021Q3	c	Derivative Funding Valuation Adjustment Gain Losson Derivative Asset DerivativeFundingValuationAdjustmentGainLossonDerivativeAsset	-23000000	USD
CY2020Q3	c	Derivative Funding Valuation Adjustment Gain Losson Derivative Asset DerivativeFundingValuationAdjustmentGainLossonDerivativeAsset	105000000	USD
	c	Derivative Funding Valuation Adjustment Gain Losson Derivative Asset DerivativeFundingValuationAdjustmentGainLossonDerivativeAsset	71000000	USD
	c	Derivative Funding Valuation Adjustment Gain Losson Derivative Asset DerivativeFundingValuationAdjustmentGainLossonDerivativeAsset	-316000000	USD
CY2021Q3	c	Derivative Credit Risk Valuation Adjustment Gain Loss DerivativeCreditRiskValuationAdjustmentGainLoss	34000000	USD
CY2020Q3	c	Derivative Credit Risk Valuation Adjustment Gain Loss DerivativeCreditRiskValuationAdjustmentGainLoss	-62000000	USD
	c	Derivative Credit Risk Valuation Adjustment Gain Loss DerivativeCreditRiskValuationAdjustmentGainLoss	-44000000	USD
	c	Derivative Credit Risk Valuation Adjustment Gain Loss DerivativeCreditRiskValuationAdjustmentGainLoss	200000000	USD
CY2021Q3	c	Derivative Funding Valuation Adjustment Gain Losson Derivative Liability DerivativeFundingValuationAdjustmentGainLossonDerivativeLiability	-63000000	USD
CY2020Q3	c	Derivative Funding Valuation Adjustment Gain Losson Derivative Liability DerivativeFundingValuationAdjustmentGainLossonDerivativeLiability	-36000000	USD
	c	Derivative Funding Valuation Adjustment Gain Losson Derivative Liability DerivativeFundingValuationAdjustmentGainLossonDerivativeLiability	-52000000	USD
	c	Derivative Funding Valuation Adjustment Gain Losson Derivative Liability DerivativeFundingValuationAdjustmentGainLossonDerivativeLiability	87000000	USD
CY2021Q3	c	Derivative Funding Valuation Adjustment Gain Loss Net DerivativeFundingValuationAdjustmentGainLossNet	-27000000	USD
CY2020Q3	c	Derivative Funding Valuation Adjustment Gain Loss Net DerivativeFundingValuationAdjustmentGainLossNet	111000000	USD
	c	Derivative Funding Valuation Adjustment Gain Loss Net DerivativeFundingValuationAdjustmentGainLossNet	43000000	USD
	c	Derivative Funding Valuation Adjustment Gain Loss Net DerivativeFundingValuationAdjustmentGainLossNet	-163000000	USD
CY2021Q3	c	Derivative Debt Valuation Adjustment Gain Losson Fair Value Option Liability DerivativeDebtValuationAdjustmentGainLossonFairValueOptionLiability	-107000000	USD
CY2020Q3	c	Derivative Debt Valuation Adjustment Gain Losson Fair Value Option Liability DerivativeDebtValuationAdjustmentGainLossonFairValueOptionLiability	-452000000	USD
	c	Derivative Debt Valuation Adjustment Gain Losson Fair Value Option Liability DerivativeDebtValuationAdjustmentGainLossonFairValueOptionLiability	-256000000	USD
	c	Derivative Debt Valuation Adjustment Gain Losson Fair Value Option Liability DerivativeDebtValuationAdjustmentGainLossonFairValueOptionLiability	801000000	USD
CY2021Q3	c	Derivative Creditand Debt Valuation Adjustment Gain Loss DerivativeCreditandDebtValuationAdjustmentGainLoss	-134000000	USD
CY2020Q3	c	Derivative Creditand Debt Valuation Adjustment Gain Loss DerivativeCreditandDebtValuationAdjustmentGainLoss	-341000000	USD
	c	Derivative Creditand Debt Valuation Adjustment Gain Loss DerivativeCreditandDebtValuationAdjustmentGainLoss	-213000000	USD
	c	Derivative Creditand Debt Valuation Adjustment Gain Loss DerivativeCreditandDebtValuationAdjustmentGainLoss	638000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionAfterTax	-107000000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionAfterTax	-452000000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionAfterTax	-256000000	USD
	us-gaap	Other Comprehensive Income Loss Financial Liability Fair Value Option Reclassification Adjustment From Aoci For Derecognition After Tax OtherComprehensiveIncomeLossFinancialLiabilityFairValueOptionReclassificationAdjustmentFromAociForDerecognitionAfterTax	801000000	USD
CY2021Q3	c	Fair Value Option Loans Held As Assets Nonaccrual Status Or90 Days Or More Past Due FairValueOptionLoansHeldAsAssetsNonaccrualStatusOr90DaysOrMorePastDue	1000000	USD
CY2020Q4	c	Fair Value Option Loans Held As Assets Nonaccrual Status Or90 Days Or More Past Due FairValueOptionLoansHeldAsAssetsNonaccrualStatusOr90DaysOrMorePastDue	0	USD
CY2021Q3	c	Letters Of Credit Received As Collateral LettersOfCreditReceivedAsCollateral	3900000000	USD
CY2021Q3	c	Fair Value Option Loans Held As Assets Aggregate Amount In Nonaccrual Status Or90 Days Or More Past Due FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatusOr90DaysOrMorePastDue	0	USD
CY2020Q4	c	Fair Value Option Loans Held As Assets Aggregate Amount In Nonaccrual Status Or90 Days Or More Past Due FairValueOptionLoansHeldAsAssetsAggregateAmountInNonaccrualStatusOr90DaysOrMorePastDue	0	USD
CY2021Q3	c	Certain Structured Liabilities CertainStructuredLiabilities	78200000000	USD
CY2020Q4	c	Certain Structured Liabilities CertainStructuredLiabilities	67000000000.0	USD
CY2021Q3	c	Guarantee Obligations Maximum Exposure Expire Within One Year GuaranteeObligationsMaximumExposureExpireWithinOneYear	297400000000	USD
CY2021Q3	c	Guarantee Obligations Maximum Exposure Expire After One Year GuaranteeObligationsMaximumExposureExpireAfterOneYear	152900000000	USD
CY2021Q3	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	450300000000	USD
CY2021Q3	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	1403000000	USD
CY2020Q4	c	Guarantee Obligations Maximum Exposure Expire Within One Year GuaranteeObligationsMaximumExposureExpireWithinOneYear	266900000000	USD
CY2020Q4	c	Guarantee Obligations Maximum Exposure Expire After One Year GuaranteeObligationsMaximumExposureExpireAfterOneYear	174600000000	USD
CY2020Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	441500000000	USD
CY2020Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	2204000000	USD
CY2021Q3	c	Number Of Trust Funded By Reinsurer NumberOfTrustFundedByReinsurer	2	trust
CY2021Q3	c	Number Of Trust Funded By Reinsurer NumberOfTrustFundedByReinsurer	2	trust
CY2020Q4	c	Long Term Care Insurance Indemnification Liability LongTermCareInsuranceIndemnificationLiability	0	USD
CY2021Q3	c	Long Term Care Insurance Indemnification Liability LongTermCareInsuranceIndemnificationLiability	0	USD
CY2021Q3	c	Cash Initial Margin Collected And Remitted Amount CashInitialMarginCollectedAndRemittedAmount	17100000000	USD
CY2020Q4	c	Cash Initial Margin Collected And Remitted Amount CashInitialMarginCollectedAndRemittedAmount	16600000000	USD
CY2021Q3	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	1400000000	USD
CY2020Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	2200000000	USD
CY2021Q3	c	Cash Held As Collateral CashHeldAsCollateral	62800000000	USD
CY2020Q4	c	Cash Held As Collateral CashHeldAsCollateral	51600000000	USD
CY2021Q3	c	Securitiesand Other Marketable Assets Heldas Collateral SecuritiesandOtherMarketableAssetsHeldasCollateral	88100000000	USD
CY2020Q4	c	Securitiesand Other Marketable Assets Heldas Collateral SecuritiesandOtherMarketableAssetsHeldasCollateral	80100000000	USD
CY2020Q4	c	Letters Of Credit Received As Collateral LettersOfCreditReceivedAsCollateral	6600000000	USD
CY2021Q3	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	450300000000	USD
CY2020Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	441500000000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	2800000000	USD
CY2021Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	3000000000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	2800000000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	3100000000	USD
CY2021Q3	c	Credit Commitments CreditCommitments	1079659000000	USD
CY2020Q4	c	Credit Commitments CreditCommitments	1071288000000	USD
CY2021Q3	c	Securities Purchasedunder Agreementsto Resell Securities Loaned Gross Unsettled SecuritiesPurchasedunderAgreementstoResellSecuritiesLoanedGrossUnsettled	135800000000	USD
CY2020Q4	c	Securities Purchasedunder Agreementsto Resell Securities Loaned Gross Unsettled SecuritiesPurchasedunderAgreementstoResellSecuritiesLoanedGrossUnsettled	71800000000	USD
CY2021Q3	c	Securities Soldunder Agreementsto Resell Securities Loaned Gross Unsettled SecuritiesSoldunderAgreementstoResellSecuritiesLoanedGrossUnsettled	57400000000	USD
CY2020Q4	c	Securities Soldunder Agreementsto Resell Securities Loaned Gross Unsettled SecuritiesSoldunderAgreementstoResellSecuritiesLoanedGrossUnsettled	62500000000	USD
CY2021Q3	us-gaap	Restricted Cash RestrictedCash	16633000000	USD
CY2020Q4	us-gaap	Restricted Cash RestrictedCash	17977000000	USD
CY2021Q3	us-gaap	Loss Contingency Range Of Possible Loss Portion Not Accrued LossContingencyRangeOfPossibleLossPortionNotAccrued	1500000000	USD
CY2021Q3	c	Dividend Income Operating From Affiliates Subsidiaries And Holding Companies DividendIncomeOperatingFromAffiliatesSubsidiariesAndHoldingCompanies	0	USD
CY2021Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	12650000000	USD
CY2021Q3	c	Interest Income Intercompany InterestIncomeIntercompany	0	USD
CY2021Q3	us-gaap	Interest Expense InterestExpense	2252000000	USD
CY2021Q3	c	Interest Expense Intercompany InterestExpenseIntercompany	0	USD
CY2021Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	10398000000	USD
CY2021Q3	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	3399000000	USD
CY2021Q3	c	Investment Banking Advisory Brokerageand Underwriting Feesand Commissions Intercompany InvestmentBankingAdvisoryBrokerageandUnderwritingFeesandCommissionsIntercompany	0	USD
CY2021Q3	us-gaap	Principal Transactions Revenue PrincipalTransactionsRevenue	2233000000	USD
CY2021Q3	c	Principal Transactions Revenue Intercompany Net PrincipalTransactionsRevenueIntercompanyNet	0	USD
CY2021Q3	c	Noninterest Income Excluding Commissions And Fees And Principal Transactions NoninterestIncomeExcludingCommissionsAndFeesAndPrincipalTransactions	1124000000	USD
CY2021Q3	c	Other Income Intercompany OtherIncomeIntercompany	0	USD
CY2021Q3	us-gaap	Noninterest Income NoninterestIncome	6756000000	USD
CY2021Q3	us-gaap	Revenues Revenues	17154000000	USD
CY2021Q3	c	Provision For Credit Loss Benefits And Claims Expense Reversal ProvisionForCreditLossBenefitsAndClaimsExpenseReversal	-192000000	USD
CY2021Q3	us-gaap	Labor And Related Expense LaborAndRelatedExpense	6058000000	USD
CY2021Q3	c	Labor And Related Expenses Intercompany LaborAndRelatedExpensesIntercompany	0	USD
CY2021Q3	c	Operating Expenses Excluding Labor And Related Expense OperatingExpensesExcludingLaborAndRelatedExpense	5426000000	USD
CY2021Q3	c	Other Noninterest Expense Intercompany OtherNoninterestExpenseIntercompany	0	USD
CY2021Q3	us-gaap	Noninterest Expense NoninterestExpense	11484000000	USD
CY2021Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	5862000000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1193000000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	4669000000	USD
CY2021Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-1000000	USD
CY2021Q3	us-gaap	Profit Loss ProfitLoss	4668000000	USD
CY2021Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	24000000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	4644000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1731000000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	2913000000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-31000000	USD
CY2021Q3	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	24000000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	2906000000	USD
	c	Dividend Income Operating From Affiliates Subsidiaries And Holding Companies DividendIncomeOperatingFromAffiliatesSubsidiariesAndHoldingCompanies	0	USD
	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	37647000000	USD
	c	Interest Income Intercompany InterestIncomeIntercompany	0	USD
	us-gaap	Interest Expense InterestExpense	6884000000	USD
	c	Interest Expense Intercompany InterestExpenseIntercompany	0	USD
	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	30763000000	USD
	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	10443000000	USD
	c	Investment Banking Advisory Brokerageand Underwriting Feesand Commissions Intercompany InvestmentBankingAdvisoryBrokerageandUnderwritingFeesandCommissionsIntercompany	0	USD
	us-gaap	Principal Transactions Revenue PrincipalTransactionsRevenue	8450000000	USD
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	c	Noninterest Income Excluding Commissions And Fees And Principal Transactions NoninterestIncomeExcludingCommissionsAndFeesAndPrincipalTransactions	4299000000	USD
	c	Other Income Intercompany OtherIncomeIntercompany	0	USD
	us-gaap	Noninterest Income NoninterestIncome	23192000000	USD
	us-gaap	Revenues Revenues	53955000000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4680000000	USD
	c	Provision For Credit Loss Benefits And Claims Expense Reversal ProvisionForCreditLossBenefitsAndClaimsExpenseReversal	-3313000000	USD
	us-gaap	Labor And Related Expense LaborAndRelatedExpense	18041000000	USD
	c	Labor And Related Expenses Intercompany LaborAndRelatedExpensesIntercompany	0	USD
	c	Operating Expenses Excluding Labor And Related Expense OperatingExpensesExcludingLaborAndRelatedExpense	15708000000	USD
	c	Other Noninterest Expense Intercompany OtherNoninterestExpenseIntercompany	0	USD
	us-gaap	Noninterest Expense NoninterestExpense	33749000000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	23519000000	USD
	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	18839000000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	7000000	USD
	us-gaap	Profit Loss ProfitLoss	18846000000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	67000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	18779000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4793000000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	13986000000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToNoncontrollingInterest	-71000000	USD
	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	67000000	USD
	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	13982000000	USD
CY2020Q3	c	Dividend Income Operating From Affiliates Subsidiaries And Holding Companies DividendIncomeOperatingFromAffiliatesSubsidiariesAndHoldingCompanies	0	USD
CY2020Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	13314000000	USD
CY2020Q3	c	Interest Income Intercompany InterestIncomeIntercompany	0	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	2821000000	USD
CY2020Q3	c	Interest Expense Intercompany InterestExpenseIntercompany	0	USD
CY2020Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	10493000000	USD
CY2020Q3	us-gaap	Investment Banking Advisory Brokerage And Underwriting Fees And Commissions InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissions	2753000000	USD
CY2020Q3	c	Investment Banking Advisory Brokerageand Underwriting Feesand Commissions Intercompany InvestmentBankingAdvisoryBrokerageandUnderwritingFeesandCommissionsIntercompany	0	USD
CY2020Q3	us-gaap	Principal Transactions Revenue PrincipalTransactionsRevenue	2508000000	USD
CY2020Q3	c	Principal Transactions Revenue Intercompany Net PrincipalTransactionsRevenueIntercompanyNet	0	USD
CY2020Q3	c	Noninterest Income Excluding Commissions And Fees And Principal Transactions NoninterestIncomeExcludingCommissionsAndFeesAndPrincipalTransactions	1548000000	USD
CY2020Q3	c	Other Income Intercompany OtherIncomeIntercompany	0	USD
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Files In Submission

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$C
CITIGROUP INC Stock $c

2021 Q3 Form 10-Q Financial Statement

#000083100121000167 Filed on November 08, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

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$C CITIGROUP INC Stock $c

2021 Q3 Form 10-Q Financial Statement

#000083100121000167 Filed on November 08, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$C
CITIGROUP INC Stock $c