Pledged Assets, Collateral, Guarantees and Commitments [Abstract]
Pledged Assets, Collateral, Guarantees and Commitments
Schedule of Guarantor Obligations [Table]
Schedule of Guarantor Obligations [Table]
Geographical [Axis]
Geographical [Axis]
Geographical [Domain]
Geographical [Domain]
U.S.
UNITED STATES
Outside U.S.
Outside of United States [Member]
Geographic area excluding the United States of America.
Guarantor Obligations, Nature [Axis]
Guarantor Obligations, Nature [Axis]
Guarantor Obligations, Nature [Domain]
Guarantor Obligations, Nature [Domain]
Commercial and similar letters of credit
Commercial and Similar Letter of Credit [Member]
Represents the irrevocable undertaking to guarantee payment of specified commercial and similar obligation if defined events occur or fail to occur.
One-to four-family residential mortgages
One to Four Family Residential Mortgages Commitment [Member]
A one- to four-family residential mortgage commitment is a written confirmation from Citigroup to a seller of a property that the bank will advance the specified sums enabling the buyer to complete the purchase.
Revolving open-end loans secured by one-to four-family residential properties
Home Equity Line of Credit [Member]
Commercial real estate, construction and land development
Commercial Real Estate Construction and Land Development [Member]
Commercial real estate, construction and land development include unused portions of commitments to extend credit for the purpose of financing commercial and multifamily residential properties as well as land development projects. Both secured-by-real-estate and unsecured commitments are included, as well as undistributed loan proceeds, where there is an obligation to advance for construction progress payments.
Credit card lines
Credit Card Lines of Credit [Member]
Represents the credit provided to customers by issuing credit cards. The credit card lines are unconditionally cancellable by the issuer.
Commercial and other consumer loan commitments
Commercial and Other Consumer Loan Commitments [Member]
Commercial and other consumer loan commitments include overdraft and liquidity facilities, as well as commercial commitments to make or purchase loans, to purchase third-party receivables, to provide note issuance or revolving underwriting facilities and to invest in the form of equity.
Other commitments and contingencies
Other Commitments and Contingencies [Member]
Other commitments and contingencies include all other transactions related to commitments and contingencies not separately disclosed in the report.
Credit Commitments
Credit Commitments [Line Items]
Credit commitments
Credit Commitments
Represents the amount of outstanding unused credit commitments made by the entity such as letters of credit, lines of credit and loan commitments.
Commercial and other consumer loan commitments original maturity of less than 1 year
Commercial and Other Consumer Loan Commitments Original Maturity of Less than One Year
Represents the amount of outstanding commercial and other consumer loan commitments with an original maturity of less than one year.
Fair Value Disclosures [Abstract]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Table]
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Table]
Schedule of the combined disclosure of the inputs and valuation techniques used to measure fair value, and a discussion of changes in valuation techniques and related inputs, if any, applied during the period to each separate class of assets and liabilities that are measured on a recurring and/or nonrecurring basis.
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value Hierarchy [Domain]
Fair Value Hierarchy [Domain]
Level 3
Fair Value, Inputs, Level 3 [Member]
Asset Class [Axis]
Asset Class [Axis]
Asset Class [Domain]
Asset Class [Domain]
Federal funds sold and securities borrowed or purchased under agreements to resell
Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell [Member]
Loans
Loans Receivable [Member]
Mortgage servicing rights
Servicing Contracts [Member]
Liability Class [Axis]
Liability Class [Axis]
Fair Value by Liability Class [Domain]
Fair Value by Liability Class [Domain]
Interest-bearing deposits
Interest-bearing Deposits [Member]
Federal funds purchased and securities loaned or sold under agreements to repurchase
Federal Funds Purchased and Securities Sold under Agreements to Repurchase [Member]
Trading account liabilities
Trading Liabilities [Member]
Short-term borrowings and long-term debt
Short-term and Long-term Debt [Member]
Represents a debt arrangement having an initial term within one year or the normal operating cycle, if longer. It also represents a debt arrangement having an initial term longer than one year or beyond the normal operating cycle, if longer.
Financial Instrument [Axis]
Financial Instrument [Axis]
Financial Instruments [Domain]
Financial Instruments [Domain]
Trading account assets and liabilities
Trading Account Assets and Trading Liabilities [Member]
Represents information in the aggregate pertaining to trading account assets are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time); and liabilities that pertain to principal and customer trading transactions, or which may be incurred with the objective of generating a profit from short-term fluctuations in price as part of an entity's market-making, hedging and proprietary trading.
Nontrading derivatives and other financial assets and liabilities
Other Financial Assets and Liabilities Including Non Trading Derivatives [Member]
Represents the aggregate of financial assets and liabilities not separately disclosed in the balance sheet. Includes nontrading derivative assets and liabilities.
Securities sold, not yet purchased
Securities Sold, Not yet Purchased [Member]
Fixed income securities
Fixed Income Securities [Member]
Investment [Axis]
Investment [Axis]
Investment [Domain]
Investment [Domain]
Mortgage-backed securities
Collateralized Mortgage Backed Securities [Member]
State and municipal, foreign government, corporate, and other debt securities
Debt Securities [Member]
Equity securities
Equity Securities [Member]
Asset-backed securities
Asset-backed Securities [Member]
Non-marketable equity securities
Non Marketable Equity Securities [Member]
Represents a security that is difficult to buy or sell because it does not trade on a normal market or exchange. Such securities may trade over the counter (OTC) or in a private transaction.
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Derivative Contract [Domain]
Derivative Contract [Domain]
Interest rate contracts
Interest Rate Contract [Member]
Foreign exchange contracts
Foreign Exchange Contract [Member]
Equity contracts
Equity Contract [Member]
Commodity contracts
Commodity Contract [Member]
Credit derivatives
Credit Risk Contract [Member]
Valuation Technique [Axis]
Valuation Technique [Axis]
Valuation Technique [Domain]
Valuation Technique [Domain]
Model-based
Model Based Valuation Technique [Member]
Model-based valuation technique used to measure fair value.
Cash flow
Cash flow Valuation Technique [Member]
Cash flow valuation technique used to measure fair value.
Price-based
Price Based Valuation Technique [Member]
Price-based valuation technique used to measure fair value.
Yield analysis
Yield Analysis Valuation Technique [Member]
Yield analysis valuation technique used to measure fair value.
Comparables Analysis
Comparables Analysis Valuation Technique [Member]
Comparables analysis valuation technique used to measure fair value.
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum
Minimum [Member]
Maximum
Maximum [Member]
Weighted Average
Weighted Average [Member]
Fair Value Inputs Assets Liabilities Quantitative Information
Fair Value Inputs Assets Liabilities Quantitative Information [Line Items]
Total assets
Assets, Fair Value Disclosure
Fair value (gross)
Fair Value Asset Liability, Gross
Total fair value of asset and liability presented on a gross absolute value basis.
Liabilities
Financial and Nonfinancial Liabilities, Fair Value Disclosure
Interest rate (as a percent)
Fair Value Inputs Interest Rate
Represents the interest rate, used as an input to measure fair value.
Contingent event probability (as a percent)
Fair Value Inputs, Contingent Event Probability
Fair Value Inputs, Contingent Event Probability
Price
Fair Value Inputs Price
The price input is a significant unobservable input for certain fixed income instruments. For these instruments, the price input is expressed as a percentage of the notional amount, with a price of $100 meaning that the instrument is valued at par. For most of these instruments, the price varies between zero to $100, or slightly above $100. Relatively illiquid assets that have experienced significant losses since issuance, such as certain asset-backed securities, are at the lower end of the range, whereas most investment grade corporate bonds will fall in the middle to the higher end of the range. For certain structured debt instruments with embedded derivatives, the price input may be above $100 to reflect the embedded features of the instrument (for example, a step-up coupon or a conversion option). The price input is also a significant unobservable input for certain equity securities; however, the range of price inputs varies depending on the nature of the position, the number of shares outstanding and other factors. Because of these factors, the weighted average price input for equity securities does not provide insight regarding the central tendencies of the ranges for equity securities, as equity prices are generally independent of one another and are not subject to a common measurement scale (for example, the zero to $100 range applicable to debt instruments). Prices for loan-held-for-sale and other real estate owned are based on appraised values.
Yield (as a percent)
Fair Value Inputs Yield
Represents the yield, used as an input to measure fair value.
Credit spread (as a percent)
Fair Value Inputs Credit Spread
Represents the rate of financial derivative contract that transfers credit risk from one party to another, used as an input to measure fair value.
Redemption rate (as a percent)
Fair Value Inputs Redemption Rate
Represents the redemption rate of financial securities, used as an input to measure fair value.
Appraised value
Fair Value Inputs Appraised Value
Fair Value Inputs Appraised Value
WAL (in years)
Fair Value Inputs Weighted Average Life
Represents the weighted average life, used as an input to measure fair value.
Discount to price (as a percent)
Fair Value Inputs Discount to Price
Represents the discount to price, used as an input to measure fair value.
EBITDA multiples
Fair Value Inputs, Earnings before Interest, Taxes, Depreciation, and Amortization Multiple
Price-earnings ratio
Fair Value Inputs Price Earnings Ratio
Represents the price-to-book ratio, used as an input to measure fair value.
Price-to-book ratio
Fair Value Inputs Price to Book Ratio
Represents the price-to-book ratio, used as an input to measure fair value.
Fund NAV
Fair Value Inputs Fund Net Asset Value
Fair Value Inputs Fund Net Asset Value
Credit correlation (as a percent)
Fair Value Inputs Credit Correlation
Represents the credit correlation used as an input to measure fair value.
IR lognormal volatility (as a percent)
Fair Value Inputs Interest Rate Lognormal Volatility
Represents the interest rate lognormal volatility used as an input to measure fair value.
Mean reversion (as a percent)
Fair Value Inputs Mean Reversion
Represents the mean reversion used as an input to measure fair value.
Foreign exchange (FX) volatility (as a percent)
Fair Value Inputs Foreign Exchange Volatility
Represents the foreign exchange volatility used as an input to measure fair value.
IR-FX correlation (as a percent)
Fair Value Inputs Interest Rate Foreign Exchange Correlation
Represents the interest rate foreign exchange correlation used as an input to measure fair value.
Credit-IR correlation (as a percent)
Fair Value Inputs Credit Interest Rate Correlation
Represents the credit interest rate correlation used as an input to measure fair value.
Equity volatility (as a percent)
Fair Value Inputs Equity Volatility
Represents the standard deviation in equity price used as an input to measure fair value.
Equity forward (as a percent)
Fair Value Inputs Equity Forward
Represents the derivative contract for the purchase of an individual stock, a stock portfolio or a stock index at some future date used as an input to measure fair value.
Equity-FX correlation (as a percent)
Fair Value Inputs Equity Foreign Exchange Correlation
Represents the correlation between equity and foreign exchange used as an input to measure fair value.
Equity-Equity correlation (as a percent)
Fair Value Inputs Equity Correlation
Represents the statistical measure of how two equity securities move in relation to each other used as an input to measure fair value.
Commodity volatility (as a percent)
Fair Value Inputs Commodity Volatility
Represents the standard deviation in commodity prices used as an input to measure fair value.
Commodity correlation (as a percent)
Fair Value Inputs Commodity Correlation
Represents the statistical measure of how two commodity prices move in relation to each other used as an input to measure fair value.
Forward price (as a percent)
Fair Value Inputs Forward Price
Represents the investment company's price for their buy and sell orders of fund used as an input to measure fair value.
Recovery rate (as a percent)
Fair Value Inputs Recovery Rate
Represents the recovery rate, used as an input to measure fair value.
Upfront points
Fair Value Inputs Upfront Points
Represents the upfront points, used as an input to measure fair value.
Equity-IR correlation (as a percent)
Fair Value Inputs Equity Interest Rate Correlation
Represents the equity interest rate correlation, used as an input to measure fair value.
Price for instrument valued at par
Fair Value Inputs Price for Instrument Valued at Par
Represents the price input used as an input to measure fair value for the instrument that is valued at par.
Brokers and Dealers [Abstract]
Brokerage receivables and Brokerage payables
Schedule of Due to (from) Broker-Dealers and Clearing Organizations [Table Text Block]
Loans and Leases Receivable Disclosure [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table]
In U.S. offices
In offices outside the U.S.
Financing Receivable Portfolio Segment [Axis]
Financing Receivable Portfolio Segment [Axis]
Financing Receivable Portfolio Segment [Domain]
Financing Receivable Portfolio Segment [Domain]
Consumer
Consumer Portfolio Segment [Member]
Class of Financing Receivable [Axis]
Class of Financing Receivable, Type [Axis]
Class of Financing Receivable [Domain]
Class of Financing Receivable, Type [Domain]
Mortgage and real estate
Mortgages [Member]
Installment, revolving credit and other
Installments Revolving Credit and Other [Member]
Represents financing receivables classified as installment, revolving credit and other.
Cards
Credit Card Receivable [Member]
Commercial and industrial
Commercial and Industrial [Member]
Represents the commercial and industrial loan.
Lease financing
Lease Financing [Member]
Represents financing receivables classified as lease financing.
Loans
Loans and Leases Receivable, Gross Carrying Amount [Line Items]
Number of loan categories
Loan Categories Number
The number of loan categories reported by the entity.
Total loans
Loans and Leases Receivable, Gross
Net unearned income
Loans and Leases Receivable, Deferred Income
Loans, net of unearned income
Loans and Leases Receivable, Net of Deferred Income
Loans sold and/or reclassified to held-for-sale
Sales or Reclassification of Portfolio Loans to Held-for-sale
Total amount of portfolio loans sold and or reclassified to loans held-for-sale during the period.
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Measurement Basis [Axis]
Measurement Basis [Axis]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Portion at fair value
Portion at Fair Value Measurement [Member]
Carrying value
Reported Value Measurement [Member]
Fair value
Estimate of Fair Value Measurement [Member]
Level 1
Fair Value, Inputs, Level 1 [Member]
Level 2
Fair Value, Inputs, Level 2 [Member]
Corporate
Commercial Portfolio Segment [Member]
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Investments
Held-to-maturity and Other Securities Carried at Cost, Fair Value Disclosure
Held-to-maturity and Other Securities Carried at Cost, Fair Value Disclosure
Federal funds sold and securities borrowed or purchased under agreements to resell
Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell, Fair Value Disclosure
Loans
Loans Receivable, Fair Value Disclosure
Other financial assets
Other Assets, Fair Value Disclosure
Liabilities
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Deposits
Deposits
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase and securities loaned
Federal Funds Purchased and Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure
Long-term debt
Long-term Debt, Fair Value
Other financial liabilities
Other Liabilities, Fair Value Disclosure
Allowance for loan losses
Loans and Leases Receivable, Allowance
Lease finance receivables
Leases Receivable, Gross, Commercial, Lease Financing
Fair value measurements additional disclosures
Fair Value Additional Disclosures [Abstract]
Unfunded lending commitments
Unused Commitments to Extend Credit
Debt Disclosure [Abstract]
Schedule of Financial Instruments Subject to Mandatory Redemption [Table]
Schedule of Financial Instruments Subject to Mandatory Redemption [Table]
Schedule of Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Axis]
Schedule of Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Axis]
Financial Instruments Subject to Mandatory Redemption, Financial Instrument [Domain]
Financial Instruments Subject to Mandatory Redemption, Financial Instrument [Domain]
Citigroup Capital III
Citigroup Capital I I I [Member]
This element represents Citigroup Capital III, a trust security with distributions guaranteed by Citigroup.
Citigroup Capital XIII
Citigroup Capital X I I I [Member]
This element represents Citigroup Capital XIII, a trust security with distributions guaranteed by Citigroup.
Citigroup Capital XVIII
Citigroup Capital X V I I I [Member]
This element represents Citigroup Capital XVIII, a trust security with distributions guaranteed by Citigroup.
Trust Preferred Securities
Trust Preferred Securities [Line Items]
Securities issued (in shares)
Trust Preferred Securities Issued
This element represents the number of trust preferred securities issued as of the balance sheet date.
Liquidation value
Trust Preferred Securities Liquidation Value
This element represents the notional value received by investors from the trusts at the time of issuance.
Coupon rate (as a percent)
Trust Preferred Securities Coupon Rate
This element represents the coupon rate of the trust preferred securities.
Common shares issued to parent (in shares)
Subsidiary Trust Common Shares Issued to Parent
This element represents the common shares issued by subsidiary trust to parent.
Junior subordinated debentures owned by the Trust, amount
Junior Subordinated Debentures Owned by Trust Proceeds Received from Trust at Issuance
This element represents the proceeds received from the trust at the date of issuance of the junior subordinated debentures to the trust.
Income Statement [Abstract]
Revenues
Revenues [Abstract]
Interest revenue
Interest and Dividend Income, Operating
Interest expense
Interest Expense
Net interest revenue
Interest Income (Expense), Net
Commissions and fees
Fees and Commissions
Principal transactions
Principal Transactions Revenue, Net
Administration and other fiduciary fees
Revenue, Other Financial Services
Realized gains on sales of investments, net
Realized Gain (Loss) on Marketable Securities and Cost Method Investments, Excluding Other than Temporary Impairments, and Other Investments
Other-than-temporary impairment losses on investments
Other than Temporary Impairment Losses, Investments [Abstract]
Gross impairment losses
Impairment of Investments and Equity Method Investment Other than Temporary Impairment
The aggregate amount (i) by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income; and (ii) of an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting.
Less: Impairments recognized in AOCI
Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Loss, before Tax, Including Portion Attributable to Noncontrolling Interest
Net impairment gains (losses) recognized in earnings
Other than Temporary Impairment Losses Investments Portion Recognized in Earnings Net and Equity Method Investment Other than Temporary Impairment
The aggregate amount (i) of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis and OTTI losses recognized during the period on investments accounted for under the cost method of accounting.; and (ii) of an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting.
Insurance premiums
Premiums Earned, Net
Other revenue
Other Nonoperating Income (Expense)
Total non-interest revenues
Noninterest Income
Total revenues, net of interest expense
Revenues
Provisions for credit losses and for benefits and claims
Provision for Loan, Lease, and Other Losses [Abstract]
Provision for loan losses
Provision for Loan Losses Expensed
Policyholder benefits and claims
Policyholder Benefits and Claims Incurred, Net
Provision (release) for unfunded lending commitments
Provision Charged or Release for Unfunded Lending Commitments Other Net
Provision charged or released during the period against earnings for unfunded lending commitments other net.
Total provisions for credit losses and for benefits and claims
Provision for Loan, Lease, and Other Losses
Operating expenses
Operating Expenses [Abstract]
Compensation and benefits
Labor and Related Expense
Premises and equipment
Occupancy, Net
Technology/communication
Communications and Information Technology
Advertising and marketing
Marketing and Advertising Expense
Other operating
Other Noninterest Expense
Total operating expenses
Operating Expenses
Income from continuing operations before income taxes
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest
Provision for income taxes
Income Tax Expense (Benefit)
Income from continuing operations
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest
Discontinued operations
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Income (loss) from discontinued operations
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax
Gain on sale
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax
Provision (benefit) for income taxes
Discontinued Operation, Tax Effect of Discontinued Operation
Income (loss) from discontinued operations, net of taxes
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Net income before attribution of noncontrolling interests
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Noncontrolling interests
Net Income (Loss) Attributable to Noncontrolling Interest
Citigroup’s net income
Net Income (Loss) Attributable to Parent
Basic earnings per share
Earnings Per Share, Basic [Abstract]
Income from continuing operations (in dollars per share)
Income (Loss) from Continuing Operations, Per Basic Share
Income (loss) from discontinued operations, net of taxes (in dollars per share)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share
Net income (in dollars per share)
Earnings Per Share, Basic
Weighted average common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Basic
Diluted earnings per share
Earnings Per Share, Diluted [Abstract]
Income from continuing operations (in dollars per share)
Income (Loss) from Continuing Operations, Per Diluted Share
Income (loss) from discontinued operations, net of taxes (in dollars per share)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share
Net income (in dollars per share)
Earnings Per Share, Diluted
Adjusted weighted average common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Table]
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Table]
Summarization of information required and determined to be provided for purposes of reconciling beginning and ending balances of fair value measurements of assets and liabilities using significant unobservable inputs (Level 3). Such reconciliation, separately presenting changes during the period, at a minimum, may include: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (net); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs).
Trading non-derivative assets
Trading Assets Excluding Derivative Assets [Member]
Investments which the entity trades for its own profit, which may include, but is not limited to, debt securities, equity security securities, mortgage-backed and asset-backed securities and loans. Excludes trading account derivatives.
Investments
Investments Excluding Trading Securities [Member]
Assets held for their financial return, rather than for the entity's operations, excluding trading account assets.
Other financial assets measured on a recurring basis
Other Financial Assets Including Non Trading Derivatives [Member]
Represents the aggregate of financial assets not separately disclosed in the balance sheet. Includes nontrading derivative assets.
Short-term borrowings
Short-term Debt [Member]
Long-term debt
Long-term Debt [Member]
Other financial liabilities
Other Financial Liabilities Including Non Trading Derivatives [Member]
Represents the aggregate of financial liabilities not separately disclosed in the balance sheet. Includes nontrading derivative liabilities.
U.S. government-sponsored agency guaranteed
Mortgage Backed Securities Issued by US Government Corporations and Agencies [Member]
Debt securities collateralized by real estate mortgage loans (mortgages), issued by US Government Corporations and Agencies, such as Government National Mortgage Association (Ginnie Mae) and by the Federal National Mortgage Association (Fannie Mae) and the Federal Home Loan Mortgage Corporation (Freddie Mac).
Mortgage-backed securities - Residential
Residential Mortgage Backed Securities [Member]
Mortgage-backed securities - Commercial
Commercial Mortgage Backed Securities [Member]
U.S. Treasury and federal agency securities
US Treasury and Government [Member]
State and municipal securities
US States and Political Subdivisions Debt Securities [Member]
Foreign government
Foreign Government Debt Securities [Member]
Corporate
Corporate Debt Securities [Member]
Other debt securities
Other Debt Obligations [Member]
Fair value, assets and liabilities measured on recurring basis, level 3 fair-value category disclosures
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]
Fair value, assets measured on recurring basis, level 3 fair-value category reconciliation
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period, asset
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Net realized/unrealized gains (losses) included in principal transactions
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings
Net realized/unrealized gains (losses) included in locations other than principal transactions, assets
Fair Value, Measurement with Unobservable Inputs Reconciliation Recurring Basis Asset Gain (Loss) Included in Earnings or Other Comprehensive Income (Loss)
Amount of gain (loss) recognized in earnings or other comprehensive income (loss), arising from assets measured at fair value on a recurring basis using unobservable inputs (level 3).
Transfers into Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3
Transfers out of Level 3, assets
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3
Purchases, assets
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases
Issuance, assets
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances
Sales, assets
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales
Settlements, assets
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements
Balance at end of period, asset
Unrealized gains (losses) still held, assets
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss)
Fair value, Derivative assets (liabilities) measured on recurring basis, level 3 fair-value category reconciliation
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Balance at beginning of period, asset (liability), net
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs
Net realized/unrealized gains (losses) included in earnings
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings
Transfers into Level 3
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3
Transfers out of Level 3
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3
Purchases
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases
Sales
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Sales
Settlements
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements
Balance at end of period, asset (liability), net
Unrealized gains (losses) still held
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Change in Unrealized Gain (Loss)
Amount of unrealized (holding) gain (loss) which is included in the statement of income (or changes in net assets) related to financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset) still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3).
Fair value, liabilities measured on recurring basis, level 3 fair-value category reconciliation
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of period, liability
Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value
Net realized/unrealized gains (losses) included in earnings, liabilities
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings
Net realized/unrealized gains (losses) included in locations other than principal transactions, liabilities
Fair Value Measurement with Unobservable Inputs Reconciliation Recurring Basis Liability Gain (Loss) Included in Earnings or Other Comprehensive Income (Loss)
Amount of gain (loss) recognized in earnings or other comprehensive income (loss), arising from liabilities measured at fair value on a recurring basis using unobservable inputs (level 3).
Transfers into Level 3, liabilities
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3
Transfers out of Level 3, liabilities
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3
Purchases, liability
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales
Issuance, liability
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances
Sales, liability
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases
Settlements, liability
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements
Balance at end of period, liability
Unrealized gains (losses) still held, liabilities
Fair Value, Liabilities Measured on Recurring Basis, Change in Unrealized Gain (Loss)
Principal Transactions Revenue, Net [Abstract]
Principal Transaction Revenue [Table]
Principal Transaction Revenue [Table]
Segments [Axis]
Segments [Axis]
Segments [Domain]
Segments [Domain]
Citicorp
Citicorp Segment [Member]
This element represents the Citicorp business segment.
Global Consumer Banking
Global Consumer Banking [Member]
This element represents the Global Consumer Banking business segment.
Institutional Clients Group
Institutional Clients Group [Member]
This element represents the Institutional Clients Group business segment.
Corporate/Other
Corporate and Other [Member]
Citi Holdings
Citi Holdings Segment [Member]
This element represents the Citi Holdings business segment.
Trading Activity [Axis]
Trading Activity [Axis]
Trading Activity, by Type [Domain]
Trading Activity, by Type [Domain]
Commodity and other contracts
Commodity and Other Contracts [Member]
Represents information in the aggregate for a derivative instrument whose primary underlying risk is tied to commodity prices and a derivative instrument whose primary underlying risk is not otherwise detailed in this disclosure.
Credit products and derivatives
Principal transactions revenue
Principal Transaction Revenue [Line Items]
Principal transactions revenue
Compensation and Retirement Disclosure [Abstract]
Schedule of Defined Benefit Plans Disclosures [Table]
Schedule of Defined Benefit Plans Disclosures [Table]
Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]
Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]
Defined Benefit Plan and Other Postretirement Benefit Plan [Domain]
Defined Benefit Plan and Other Postretirement Benefit Plan [Domain]
U.S. Qualified Pension Plan
United States Qualified Pension Plans [Member]
Represents U.S. qualified pension plans.
U.S. Nonqualified Pension Plan
United States Nonqualified Pension Plans [Member]
Represents U.S. nonqualified pension plans.
U.S. Postretirement Benefit Plans
United States Postretirement Benefit Plan of US Entity [Member]
Non - U.S. Pension Plans
Foreign Pension Plan [Member]
Non-U.S. Postretirement Benefit Plans
Foreign Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure
Defined Benefit Plan Disclosure [Line Items]
Assumptions used in determining benefit obligations
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Plan Assumptions - During the year
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate (as a percent)
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate
Plan Assumptions - At year end
Defined Benefit Plan, Assumptions Used in Calculations [Abstract]
Discount rate (as a percent)
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate
BROKERAGE RECEIVABLES AND BROKERAGE PAYABLES
Due to and from Broker-Dealers and Clearing Organizations Disclosure [Text Block]
Investments [Abstract]
Schedule of Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table]
Schedule of Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table]
Debt Security Category [Axis]
Debt Security Category [Axis]
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain]
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain]
AFS debt securities
Available-for-sale Securities [Member]
HTM debt securities
Held-to-maturity Securities [Member]
Foreign government securities
Schedule of other than temporary impairment, credit losses recognized in earnings, disclosures
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Schedule of other-than-temporary impairment, credit losses recognized in earnings, roll forward
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Balance at beginning of period
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held
Credit impairments recognized in earnings on securities not previously impaired
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, No Previous Impairment
Credit impairments recognized in earnings on securities that have been previously impaired
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses
Reductions due to credit-impaired securities sold, transferred or matured
Other than Temporary Credit Impairment Reductions Due to Sale of Credit Impaired Securities Sold or Matured
This element represents amount of reduction in credit impairment recognized in earnings for available-for-sale and held to maturity investments, which were sold or matured during the period.
Balance at end of period
Fair Value Inputs, Assets, Quantitative Information [Table]
Fair Value Inputs, Assets, Quantitative Information [Table]
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Fair Value, Measurement Frequency [Domain]
Fair Value, Measurement Frequency [Domain]
Nonrecurring
Fair Value, Measurements, Nonrecurring [Member]
Loans held-for-sale
Loan Held for Sale [Member]
Represents loans held-for-sale.
Other real estate owned
Real Estate Acquired in Satisfaction of Debt [Member]
Loans
Loan Held for Investment Impaired [Member]
Represents loans held for investment whose carrying amount is based on the fair value of the underlying collateral, including primarily real-estate secured loans.
Valuation techniques and inputs
Fair Value Inputs, Assets, Quantitative Information [Line Items]
Nonrecurring fair value changes included in earnings
Fair Value, Adjustment Disclosure [Abstract]
Nonrecurring fair value measurements included in earnings
Fair Value Measurement with Unobservable Inputs Reconciliation Non Recurring Basis Asset Gain (Loss) Included in Earnings
Amount of gain (loss) recognized in the income statement for an asset measured on a nonrecurring basis using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Items Measured at Fair Value on a Nonrecurring Basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held-for-sale
Loans Held-for-sale, Fair Value Disclosure
Other real estate owned
Real Estate Acquired Through Foreclosure
Loans
Loans Receivables whose Carrying Amount Based on Fair Value of Collateral Fair Value Disclosure
This element represents fair value of loans held for investment whose carrying amount is based on the fair value of the underlying collateral, including primarily real-estate secured loans.
Total assets
Discontinued Operations and Disposal Groups [Abstract]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table]
Disposal Groups, Including Discontinued Operations [Table]
Disposal Group Classification [Axis]
Disposal Group Classification [Axis]
Disposal Group Classification [Domain]
Disposal Group Classification [Domain]
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member]
Disposal Group Name [Axis]
Disposal Group Name [Axis]
Disposal Groups, Including Discontinued Operations, Name [Domain]
Disposal Group Name [Domain]
OneMain Financial Business
OneMain Financial Business [Member]
OneMain Financial Business
Japan Cards Business
Japan Cards Business [Member]
Japan Cards Business
Japan Retail Business
Japan Retail Business [Member]
Japan Retail Business [Member]
Spain Consumer Business
Spain Consumer Business [Member]
Spain Consumer Business [Member]
Greece Consumer Business
Greece Consumer Business [Member]
Greece Consumer Business [Member]
Discontinued operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income before taxes
Income (Loss) from Individually Significant Component Disposed of or Held-for-sale, Excluding Discontinued Operations, before Income Tax
Balance Sheet Disclosures
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Assets
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Cash and deposits with banks
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents
Investments
Disposal Group, Including Discontinued Operations, Investments
Disposal Group, Including Discontinued Operations, Investments
Loans, net
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net
Allowance
Disposal Group, Including Discontinued Operation, Allowance on Loans
Disposal Group, Including Discontinued Operation, Allowance on Loans
Goodwill
Disposal Group, Including Discontinued Operation, Goodwill
Intangible assets
Disposal Group, Including Discontinued Operation, Intangible Assets
Other assets, advances to/from subs
Disposal Group Including Discontinued Operation, Other Assets, Advances To (From) Subs
Disposal Group Including Discontinued Operation, Other Assets, Advances To (From) Subs
Other assets
Disposal Group, Including Discontinued Operation, Other Assets
Total assets
Disposal Group, Including Discontinued Operation, Assets
Liabilities
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
Deposits
Disposal Group, Including Discontinued Operation, Deposits
Disposal Group, Including Discontinued Operation, Deposits
Long-term debt
Disposal Group, Including Discontinued Operation, Long-Term Debt
Disposal Group, Including Discontinued Operation, Long-Term Debt
Other liabilities, due to/from subs
Disposal Group, Including Discontinued Operation, Due to (from) Subsidiary
Disposal Group, Including Discontinued Operation, Due to (from) Subsidiary
Other liabilities
Disposal Group, Including Discontinued Operation, Other Liabilities
Total liabilities
Disposal Group, Including Discontinued Operation, Liabilities
Additional Disclosures
Disposal Group, Including Discontinued Operation, Additional Disclosures [Abstract]
Assets under management
Disposal Group, Including Discontinued Operation, Assets Under Management
Disposal Group, Including Discontinued Operation, Assets Under Management
Number of branches
Number of Branches
Number of Branches
Number of ATMs
Number of ATMs
Number of ATMs
Number of employees
Entity Number of Employees
Pre-tax gain on sale
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal
After tax gain on sale of discontinued operations
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Net of Tax
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Net of Tax
Federal Funds Purchased and Securities Sold under Agreements to Repurchase [Abstract]
Federal funds sold and securities borrowed or purchased under agreements to resell
Schedule of Resale Agreements [Table Text Block]
Federal funds purchased and securities loaned or sold under agreements to repurchase
Schedule of Repurchase Agreements [Table Text Block]
Schedule of gross and net resale agreements and securities borrowing agreements and the related offsetting amount permitted as well as not permitted under ASC 210-20-45
Offsetting Assets [Table Text Block]
Schedule of gross and net repurchase agreements and securities lending agreements and the related offsetting amount permitted as well as not permitted under ASC 210-20-45
Offsetting Liabilities [Table Text Block]
Schedule of Financing Receivables Past Due [Table]
Schedule of Financing Receivables Past Due [Table]
In North America Offices
North America [Member]
In offices outside North America
Outside of North America [Member]
Represents other geographic segment not belong to North America.
Residential first mortgages
Residential Mortgage [Member]
Home equity loans
Credit cards
Installment and other
Installment and Other [Member]
Represents financing receivables classified as installment and other loans.
Commercial market loans
Commercial Market Loans [Member]
Represents the commercial market loan.
Total GCB and Citi Holdings Consumer
GCB and Citi Holdings Consumer [Member]
Represents information pertaining to GCB and Citi Holdings Consumer.
Other
Other Loan [Member]
Represents information pertaining to other loans.
Open-ended consumer loans
Open Ended Consumer Loans [Member]
Represents the open-ended consumer loans.
Unsecured Revolving Loans
Unsecured Revolving Loans [Member]
Represents financing receivables classified as unsecured revolving loans.
Financing Receivables, Period Past Due [Axis]
Financing Receivables, Period Past Due [Axis]
Financing Receivables, Period Past Due [Domain]
Financing Receivables, Period Past Due [Domain]
30 to 89 Days Past Due
Financing Receivables, 30 to 89 Days Past Due [Member]
Financing Receivables, 30 to 89 Days Past Due [Member]
Equal to greater than 90 days past due
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Collateral [Axis]
Collateral [Axis]
Collateral [Domain]
Collateral [Domain]
Government-guaranteed
Government-Guaranteed Collateral [Member]
Credit Score, FICO [Axis]
Credit Score, FICO [Axis]
Credit Score, FICO [Domain]
Credit Score, FICO [Domain]
Less than 620
FICO Score, Less than 620 [Member]
FICO Score, Less than 620 [Member]
≥ 620 but less than 660
FICO Score, 620 to 660 [Member]
FICO Score, 620 to 660 [Member]
Equal to or greater than 660
FICO Score, Greater than 660 [Member]
FICO Score, Greater than 660 [Member]
Loan to Value [Axis]
Loan to Value [Axis]
Loan to Value [Domain]
Loan to Value [Domain]
Less than or equal to 80%
LTV less than or equal to 80 percent [Member]
LTV less than or equal to 80 percent [Member]
80% but less than or equal to 100%
LTV Greater than 80 percent and Less than 100 percent [Member]
LTV Greater than 80 percent and Less than 100 percent [Member]
Greater than 100%
LTV Greater than 100 percent [Member]
LTV Greater than 100 percent [Member]
Internal Credit Assessment [Axis]
Internal Credit Assessment [Axis]
Internal Credit Assessment [Domain]
Internal Credit Assessment [Domain]
Loan to Values (LTVs)
Loan to Values [Member]
Represents the loan to value ratio, a credit quality indicator.
Loans receivable
Financing Receivable, Recorded Investment [Line Items]
Period within which default occurred post-modification
Financing Receivable Modifications Default Post Modification Period
This represents the period within which the payment default occurred after the loan modification.
Number of days past due, non-accrual status
Number of Days Past Due for Non Accrual Status
Represents the number of days, the loan is past due for classifying as non-accrual.
Minimum number of payments made consecutively for the loans to be re-aged
Financing Receivable Modifications, Number of Payments, Minimum
Represents the minimum number of payments made consecutively under consumer loans to qualify these loans to be re-aged to current status.
Number of re-age modification limitations in twelve months
Financing Receivable Re Age Modifications Limitations in Twelve Months
Represents the number of re-age modification limitations in twelve months.
Number of re-age modification limitations in five years
Financing Receivable Re Age Modification Limitations in Five Years
Represents the number of re-age modification limitations in five years.
Loans, current
Financing Receivable, Recorded Investment, Current
Loans, past due
Financing Receivable, Recorded Investment, Past Due
Loans, net of unearned income
Loans, total non-accrual
Financing Receivable, Recorded Investment, Nonaccrual Status
Loans, 90 days past due and accruing
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing
Loans less than this number of days past due are considered current
Number of Days Past Due for Considering as Current
Represents the number of days past due the loan is less than for consideration as current. Loans 30 or more days past due are not considered current.
Loans at fair value
Loans
Financing Receivable, Net
Financial standby letters of credit
Financial Standby Letter of Credit [Member]
Performance guarantees
Performance Guarantee [Member]
Derivative instruments considered to be guarantees
Derivative Instruments Considered Guarantees [Member]
Represents only those derivative instruments that require the entity to make payments to the counterparty based on changes in an underlying that is related to an asset, a liability, or an equity security held by the guaranteed party. More specifically, derivative instruments considered to be guarantees include certain over-the-counter written put options where the counterparty is not a bank, hedge fund or broker-dealer (such counterparties are considered to be dealers in these markets, and may therefore not hold the underlying instruments).
Loans sold with recourse
Loans Sold with Recourse [Member]
Represents the entity's obligations to reimburse the buyers for loan losses under certain circumstances. Recourse refers to the clause in a sales agreement under which a lender will fully reimburse the buyer/investor for any losses resulting from the purchased loans. This may be accomplished by the seller's taking back any loans that become delinquent.
Securities lending indemnifications
Securities Lending Indemnifications [Member]
Represents the indemnifications issued by the bank with regard to securities lending to guarantee that a securities lending customer will be made whole in the event that the security borrower does not return the security subject to the lending agreement and the collateral held is insufficient to cover the market value of the security.
Credit card merchant processing
Credit Card Merchant Processing [Member]
Credit card merchant processing guarantees represent the Company's indirect obligations in connection with the processing of private label and bank card transactions on behalf of merchants.
Custody indemnifications and other
Custody Indemnifications and Other [Member]
Custody indemnifications are issued to guarantee that custody clients will be made whole in the event of a third-party sub-custodian or depository institution failing to safeguard clients' assets.
Futures and over-the-counter derivatives clearing
Futures and Over the Counter Derivatives Clearing [Member]
Represents information pertaining to futures and over-the-counter derivatives clearing.
External Credit Rating by Grouping [Axis]
External Credit Rating by Grouping [Axis]
External Credit Rating by Grouping [Domain]
External Credit Rating by Grouping [Domain]
Investment Grade
External Credit Rating, Investment Grade [Member]
Non-Investment Grade
External Credit Rating, Non Investment Grade [Member]
Not rated
External Credit Rating Not Rated [Member]
Represents credit derivatives and guarantee obligations which have not been rated for payment and performance risk.
Guarantor Obligations
Guarantor Obligations [Line Items]
Maximum potential amount of future payments
Guarantee Obligations Maximum Exposure [Abstract]
Expire Within One Year
Guarantee Obligations Maximum Exposure Expire within One Year
Represents the maximum potential payments with respect to the entity's guarantees that expire within one year.
Expire After One Year
Guarantee Obligations Maximum Exposure Expire after One Year
Represents the maximum potential payments with respect to the entity's guarantees that expire after one year.
Total amount outstanding
Guarantor Obligations, Maximum Exposure, Undiscounted
Carrying value
Guarantor Obligations, Current Carrying Value
Repurchase reserve for Consumer mortgages representations and warranties
Repurchase Reserve Consumer Mortgages Representations and Warranties
This element represents the repurchase reserve created for consumer mortgages, representations and warranties.
Maximum potential contingent liability related to bankcard and private-label merchant processing services
Bankcard and Private Label Merchant Processing Services, Maximum Potential Contingent Liability
Represents the entity's maximum potential contingent liability related to both bankcard and private-label merchant processing services, which is estimated to be the total volume of credit card transactions that meet the requirements to be valid chargeback transactions at any given time.
Compensation for standard representations and warranties
Compensation Received for Standard Representations and Warranties
Represents the amount of compensation received for standard representations and warranties.
Stated or notional amounts included in the indemnification clauses
Stated or Notional Amounts Included in Indemnification Clauses
Represents the stated or notional amounts included in the indemnification clauses.
Liability related to VTNs
Value Transfer Networks Liability
Represents the liability recorded in the balance sheet related to value-transfer networks.
Number of trusts funded by the reinsurer
Number of Trust Funded by Reinsurer
This element represents the number of trusts funded by the reinsurer.
Fair value of securities in trusts funded by reinsurer relating to indemnification
Fair Value of Trusts Funded by Insurer
Represents the fair value of securities relating to the funding of the trusts by the reinsurer to cover the insurance company's statutory liabilities for long-term care (LTC) Policies.
Liability related to long-term care insurance indemnification
Long Term Care Insurance Indemnification Liability
Represents the liability recorded in the balance sheet related to long-term care insurance indemnification.
Number of types of margin
Number of Types of Margin
Represents the number of types of margin.
Amount of cash initial margin collected and remitted
Cash Initial Margin Collected and Remitted Amount
Represents the amount of cash initial margin collected and remitted.
Cash collateral available to reimburse losses realized under guarantees and indemnifications
Cash Held as Collateral
Cash held as collateral available to the reporting entity to reimburse losses realized under guarantees and indemnifications.
Securities and other marketable assets held as collateral, the majority of which collateral is held to reimburse losses realized under securities lending indemnifications
Securities Received as Collateral
Letters of credit in favor of the Company held as collateral
Letters of Credit Received as Collateral
Represents the letters of credit in favor of the entity held as collateral to reimburse losses realized under the guarantees.
Interest Revenue (Expense), Net [Abstract]
Interest revenue
Interest and Dividend Income, Operating [Abstract]
Loan interest, including fees
Interest and Fee Income, Loans and Leases
Deposits with banks
Interest Income, Deposits with Financial Institutions
Federal funds sold and securities borrowed or purchased under agreements to resell
Interest Income, Federal Funds Sold and Securities Purchased under Agreements to Resell
Investments, including dividends
Interest and Dividend Income Securities Excluding Trading Securities
Interest and dividend income on all securities excluding trading securities.
Trading account assets
Interest and Dividend Income, Securities, Operating, Trading or Measured at Fair Value
Other interest
Other Interest and Dividend Income
Total interest revenue
Interest expense
Interest Expense [Abstract]
Deposits
Interest Expense, Deposits
Federal funds purchased and securities loaned or sold under agreements to repurchase
Interest Expense, Federal Funds Purchased and Securities Sold under Agreements to Repurchase
Trading account liabilities
Interest Expense, Trading Liabilities
Short-term borrowings
Interest Expense, Short-term Borrowings Excluding Federal Funds and Securities Sold under Agreements to Repurchase
Long-term debt
Interest Expense, Long-term Debt
Total interest expense
Net interest revenue after provision for loan losses
Interest Income (Expense), after Provision for Loan Loss
Insurance fees and charges
Insurance Fees and Charges
The insurance fees and other charges paid for deposits.
Loans and Leases Receivable, Allowance [Abstract]
Allowance for credit losses
Schedule of Credit Losses Related to Financing Receivables, Current and Noncurrent [Table Text Block]
Schedule of allowance for credit losses and investment in loans by portfolio segment
Allowance for Credit Losses on Financing Receivables [Table Text Block]
Fair Value, Option, Aggregate Differences [Abstract]
Schedule of financial instruments selected for changes in fair value gains and losses
Schedule of Financial Instruments Selected for Fair Value Accounting [Table Text Block]
Represents the schedule of financial instruments along with their fair value positions, selected for fair value accounting. Also includes disclosure of the gains (losses) related to the change in fair value during the period.
Schedule of fair value of loans and other disclosures for certain credit related products
Schedule of Fair Value of Loans and Other Disclosures for Certain Credit Products [Table Text Block]
Represents the schedule of fair value of loans and other disclosures for certain credit related products.
Schedule of fair value of loans and other disclosures for certain mortgage loans
Schedule of Fair Value of Loans and Other Disclosures for Certain Mortgage Loans [Table Text Block]
Represents the schedule of fair value of loans and other disclosures for certain mortgage loans.
Schedule of carrying value of structured notes, disaggregated by type of embedded derivative instrument
Schedule of Carrying Value of Debt Disaggregated by Type of Embedded Derivative Instrument [Table Text Block]
Tabular disclosure of the carrying value of debt, disaggregated by type of embedded derivative instrument.
Schedule of long-term debt carried at fair value, excluding debt issued by consolidated VIEs
Schedule of Fair Value of Long-term Debt, Excluding Debt Issued by Consolidated V I Es [Table Text Block]
Represents the schedule of long-term debt carried at fair value, excluding debt issued by consolidated VIEs.
Schedule of short-term borrowings carried at fair value
Schedule of Fair Value of Short Term Borrowings [Table Text Block]
Represents the schedule of short-term borrowings carried at fair value.
Commitments and Contingencies Disclosure [Abstract]
CONTINGENCIES
Commitments and Contingencies Disclosure [Text Block]
Loss Contingencies [Table]
Loss Contingencies [Table]
Loss Contingency Nature [Axis]
Loss Contingency Nature [Axis]
Loss Contingency, Nature [Domain]
Loss Contingency, Nature [Domain]
Mortgage-backed securities trustee actions
Mortgage-Backed Securities Trustee Actions [Member]
Mortgage-Backed Securities Trustee Actions [Member]
Lehman Brothers Bankruptcy
Lehman Brothers Bankruptcy [Member]
The risk of loss associated with litigation related to transactions with Lehman Brothers prior to their bankruptcy filing.
Parmalat Litigation
Parmalat Litigation [Member]
The risk of loss associated with litigation related to alleged fraud by Parmalat insiders.
Litigation Case [Axis]
Litigation Case [Axis]
Litigation Case [Domain]
Litigation Case [Domain]
Citigroup, Inc. Securities Litigation
Citigroup, Inc. Securities Litigation [Member]
Information about a variety of class action and individual securities lawsuits filed by investors in the company's equity and debt securities in state and federal courts relating to the Company's disclosures regarding its exposure to subprime-related assets.
Oceanografia
Oceanografia [Member]
Oceanografia [Member]
Contingencies
Loss Contingencies [Line Items]
Possible loss, high end of the range
Loss Contingency, Range of Possible Loss, Portion Not Accrued
Aggregate original purchase amount
Purchase Amount of Collateralized Debt Obligations and Mortgage Backed Securities
Represents the aggregate original purchase amount of collateralized debt obligations and mortgage backed securities.
Aggregate original purchase amount of the purchases covered by tolling agreements
Collateralized Debt Obligations and Mortgage Backed Securities Covered by Tolling Agreements
Represents the aggregate original purchase amount of collateralized debt obligations and mortgage backed securities underwritten by the entity, which are covered by tolling agreements with investors threatening litigation.
Proofs of claims
Gain Contingency, Unrecorded Amount
Bankruptcy claim clearing obligations amount to avoid from setoff
Bankruptcy Claim Clearing Obligations Amount to Avoid from Setoff
Represents the amount of setoff to be avoided.
Amount of fine
Loss Contingency Litigation Fine
Represents the amount of fine requested by Milan prosecutors.
Number of defendants
Loss Contingency, Number of Defendants
Damages sought
Loss Contingency Damages Claimed by Certain Investors
The value of contingent loss claimed by certain investors.
LOANS
Financing Receivables [Text Block]
Accounting Policies [Abstract]
Accounting Changes
New Accounting Pronouncements, Policy [Policy Text Block]
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill [Table]
Schedule of Goodwill [Table]
Subsegments [Axis]
Subsegments [Axis]
Subsegments [Domain]
Subsegments [Domain]
North America Global Consumer Banking
North America Global Consumer Banking [Member]
This element represents the North American Regional Consumer Banking reporting unit of the entity.
EMEA Global Consumer Banking
Europe Middle East Africa Global Consumer Banking [Member]
This element represents the Regional Consumer Banking reporting unit of the entity consisting of Europe, the Middle East, and Africa (EMEA).
Asia Global Consumer Banking
Asia Global Consumer Banking [Member]
This element represents the Asian Regional Consumer Banking reporting unit of the entity.
Latin America Global Consumer Banking
Latin America Global Consumer Banking [Member]
Latin America Global Consumer Banking [Member]
Banking
Securities and Banking [Member]
This element represents the Securities and Banking reporting unit of the entity.
Markets and Securities Services
Markets and Securities Services [Member]
Markets and Securities Services [Member]
Latin America Retirement Services
Latin America Retirement Services [Member]
Represents information pertaining to Latin America Retirement Services, reporting unit of the entity.
Citi Holdings—Consumer EMEA
Citi Holdings, Consumer Europe Middle East and Africa [Member]
Citi Holdings, Consumer Europe Middle East and Africa [Member]
Citi Holdings — Consumer Japan
Citi Holdings, Consumer Japan [Member]
Citi Holdings, Consumer Japan [Member]
Citi Holdings—Consumer Latin America
Citi Holdings, Consumer Latin America [Member]
Citi Holdings, Consumer Latin America [Member]
Consumer Finance South Korea
Citi Holdings, Consumer Finance South Korea [Member]
Citi Holdings, Consumer Finance South Korea [Member]
Goodwill:
Goodwill [Line Items]
Impairments
Goodwill, Impairment Loss
Fair Value as a % of allocated book value
Fair Value of Goodwill as Percentage of Allocated Book Value
This element represents the fair value of goodwill as a percentage of allocated book value.
Goodwill
Goodwill
Goodwill, reclassified to other assets held-for-sale
Goodwill, Reclassified to Other Assets Held-for-sale
Goodwill, Reclassified to Other Assets Held-for-sale
Fair Value, Option, Quantitative Disclosures [Table]
Fair Value, Option, Quantitative Disclosures [Table]
Eligible Item or Group for Fair Value Option [Axis]
Eligible Item or Group for Fair Value Option [Axis]
Fair Value, Option, Eligible Item or Group [Domain]
Fair Value, Option, Eligible Item or Group [Domain]
Federal funds sold and securities borrowed or purchased under agreements to resell Selected portfolios of securities purchased under agreements to resell and securities borrowed
Trading account assets
Trading Securities [Member]
Consumer loans
Certain mortgage loans (HFS)
Other assets
Assets Other [Member]
This element represents other assets not otherwise disclosed separately.
Total assets
Assets [Member]
Federal funds purchased and securities loaned or sold under agreements to repurchase Selected portfolios of securities sold under agreements to repurchase and securities loaned
Total liabilities
Liability [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions.
Fair value elections, changes in fair value gains (losses)
Fair Value, Option, Changes in Fair Value, Gain (Loss)
SECURITIZATIONS AND VARIABLE INTEREST ENTITIES
Schedule of Variable Interest Entities [Table]
Schedule of Variable Interest Entities [Table]
Underlying Asset Class [Axis]
Underlying Asset Class [Axis]
Underlying Asset Class [Domain]
Underlying Asset Class [Domain]
Commercial and other real estate
Commercial Real Estate [Member]
Corporate loans
Corporate Loans [Member]
This element represents corporate loans.
Hedge funds and equities
Hedge Funds and Equities [Member]
This element represents hedge funds and equities.
Airplanes, ships and other assets
Airplanes Ships and Other Assets [Member]
This element represents airplanes, ships and other assets.
Financial Instrument [Axis]
Asset-based financing
Variable Interest Entity
Variable Interest Entity [Line Items]
Total unconsolidated VIE assets
Variable Interest Entity Nonconsolidated Involvement Assets
The amount of involvement with significant unconsolidated Variable Interest Entity assets.
Maximum exposure to unconsolidated VIEs
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount
Proceeds from new securitizations
Cash Flows Between Transferor and Transferee, Proceeds from New Transfers
Cash flows received on retained interest and other net cash flows
Variable Interest Entity Cashflows Received on Retained Interest and Other Net Cashflows
Represents cash flows received on retained interest and other net cash flows.
Schedule of Financing Receivable, Troubled Debt Restructurings [Table]
Schedule of Financing Receivable, Troubled Debt Restructurings [Table]
Financial institutions
Loans to Financial Institutions [Member]
Represents financing receivables from financial institutions.
Other
Others [Member]
Represents loans in other types or industries which are not separately disclosed in the balance sheet or notes.
Financing receivable impaired
Financing Receivable, Modifications [Line Items]
Carrying Value
Financing Receivable, Modifications, Post-Modification Recorded Investment
TDRs involving changes in the amount and/or timing of principal payments
Financing Receivable Modifications, During the Period Recorded Investment Involving Change in Amount or Timing of Principal Payment
The amount of the outstanding recorded investment related to financing receivables that were modified by troubled debt restructurings occurring during the period. The modification is involving changes in the amount and/or timing of principal payments.
TDRs involving changes in the amount and/or timing of interest payments
Financing Receivable Modifications, During the Period Recorded Investment Involving Change in Amount or Timing of Interest Payment
The amount of the outstanding recorded investment related to financing receivables that were modified by troubled debt restructurings occurring during the period. The modification is involving changes in the amount and/or timing of interest payments.
TDRs involving changes in the amount and/or timing of both principal and interest payments
Financing Receivable Modifications, During the Period Recorded Investment Involving Change in Amount or Timing of Principal Interest Payment
The amount of the outstanding recorded investment related to financing receivables that were modified by troubled debt restructurings occurring during the period. The modification is involving changes in the amount and/or timing of both principal and interest payments.
Number of days past due, default status
Number of Days Past Due for Default Status
Represents the classified default number of days for which the loan is past due.
Carrying Value
Financing Receivable, Modifications, Recorded Investment
TDR in payment default
Financing Receivable, Modifications, Subsequent Default, Recorded Investment
Client intermediation
Client Intermediation [Member]
This element represents a range of transactions (including credit-linked and equity-linked notes) designed to provide specified returns based on the underlying security, referenced asset or index to the investors.
Citi-administered asset-backed commercial paper conduits (ABCP)
Entity Administered Asset Backed Commercial Paper Conduit [Member]
This element represents entity-administered asset-backed commercial paper conduits.
Citi-administered asset-backed consolidated commercial paper conduits (ABCP)
Entity Consolidated Administered Asset-backed Commercial Paper Conduit [Member]
This element represents entity-administered asset-backed consolidated commercial paper conduits.
Municipal securities tender option bond trusts (TOBs)
Municipal Securities Tender Option Bond Trusts [Member]
Represents the municipal securities tender option bond trusts.
Classification of Other Securitization Details
Classification of Other Securitization Details [Line Items]
Purchased assets outstanding under conduits
Purchased Assets Outstanding Under Conduits
Represents the amount of purchased assets outstanding under conduits.
Incremental funding commitments with clients
Incremental Funding Commitments with Clients
Represents the amount of incremental funding commitments with clients under conduits.
Weighted average life of commercial paper issued by conduits
Weighted Average Life of Commercial Paper Issued by Conduits
This element represents the weighted average life, in days, of commercial paper issued by the conduits.
Number of conduit which holds only loans that are fully guaranteed primarily by AAA-rated government agencies
Number of Consolidated Conduit which Holds Only Loans that are Fully Guaranteed
Represents number of consolidated conduit which holds only loans that are fully guaranteed primarily by AAA rated government agencies that support export and development financing programs.
Letters of credit as percentage of conduit assets
Letters of Credit as Percentage of Conduit Assets
This element represents the percentage of letters of credit to conduit assets.
Floor price of conduit's assets
Floor Price of Asset Backed Commercial Paper Conduits Assets
Represents the amount of floor price of asset-backed commercial paper conduits.
Letters of credit provided to conduits
Letters of Credit Provided to Conduits
This element represents the letters of credit provided to conduits.
Commercial paper
Commercial Paper
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
INCENTIVE PLANS
Disclosure of Compensation Related Costs Share Based Payments and Cash Awards [Text Block]
The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. Also includes disclosure for deferred cash awards and other cash incentive awards.
Schedule of guarantor obligations
Schedule of Guarantor Obligations [Table Text Block]
Schedule of guarantor obligations by credit ratings
Schedule of Guarantee Obligations by Credit Ratings [Table Text Block]
Provides pertinent information about each guarantee obligation, or each group of similar guarantee obligations, by credit ratings, including (a) the nature of the guarantee and (b) the maximum potential amount of future payments (undiscounted) the entity could be required to make under the guarantee.
Schedule of Credit Commitments
Schedule of Credit Commitments [Table Text Block]
Provides the amount of outstanding credit commitments by type and location of commitment.
Schedule of Held-to-maturity Securities [Table]
Schedule of Held-to-maturity Securities [Table]
All other
Corporate Debt Asset Backed and Other Debt Securities [Member]
Represents information in the aggregate pertaining to corporate debt securities, asset-backed securities, and other debt securities not otherwise defined.
Investment, Name [Axis]
Investment, Name [Axis]
Investment, Name [Domain]
Investment, Name [Domain]
Akbank
Akbank [Member]
Represents the acquired business of Akbank.
Schedule of Held-to-maturity Securities
Schedule of Held-to-maturity Securities [Line Items]
Held-to-maturity Securities, Debt Maturities
Held-to-maturity Securities, Debt Maturities [Abstract]
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount;
Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract]
Due within 1 year, carrying value
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount
After 1 but within 5 years, carrying value
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount
After 5 but within 10 years, carrying value
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount
After 10 years, carrying value
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount
Carrying value
Held-to-maturity Securities
Held-to-maturity Securities, Debt Maturities, Fair Value;
Held-to-maturity Securities, Debt Maturities, Fair Value, Fiscal Year Maturity [Abstract]
Due within 1 year, fair value
Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Fair Value
After 1 but within 5 years, fair value
Held-to-maturity Securities, Debt Maturities, Year Two Through Five, Fair Value
After 5 but within 10 years, fair value
Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value
After 10 years, fair value
Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value
Fair value
Held-to-maturity Securities, Fair Value
Equity investment ownership percentage
Available for Sale Equity Securities Ownership Percentage
The percentage of ownership of common stock or equity participation in the investee for such equity securities categorized as available-for-sale.
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Hedging Designation [Axis]
Hedging Designation [Axis]
Hedging Designation [Domain]
Hedging Designation [Domain]
Derivative instruments designated as ASC 815 (SFAS 133) hedges
Designated as Hedging Instrument [Member]
Derivative instruments not designated as ASC 815 (SFAS 133) hedges
Not Designated as Hedging Instrument [Member]
Commodity and other contract options
Commodity Option and Other Contract Options [Member]
Represents information in the aggregate for an option contract in which the underlying asset is a commodity and for other option contracts whose primary underlying risk is not otherwise detailed in this disclosure.
Position [Axis]
Position [Axis]
Position [Domain]
Position [Domain]
Purchased
Long [Member]
Sold
Short [Member]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Trading accounts assets
Trading Accounts Assets [Member]
Primary financial statement caption encompassing trading account assets.
Trading accounts liabilities
Trading Accounts Liabilities [Member]
Primary financial statement caption encompassing trading account liabilities.
Other assets
Other Assets [Member]
Other liabilities
Other Liabilities [Member]
Transaction Type [Axis]
Transaction Type [Axis]
Transaction [Domain]
Transaction [Domain]
Over-the-counter
Over the Counter [Member]
Cleared
Exchange Cleared [Member]
Exchange traded
Exchange Traded [Member]
Derivative Mark-to-Market (MTM) Receivables/Payables
Derivatives, Fair Value [Line Items]
Derivative receivables
Derivative Asset, Fair Value, Gross Asset
Derivative payables
Derivative Liability, Fair Value, Gross Liability
Cash collateral paid, net of amount used to offset derivative liabilities
Derivative Collateral Right to Reclaim Cash, Net
Represents the amount of the right to reclaim cash collateral net of the amount offset against net derivative instrument positions under master netting arrangements.
Cash collateral received, net of amount used to offset derivative assets
Derivative Collateral Obligation to Return Cash, Net
Represents the amount of the obligation to return cash collateral net of the amount offset against net derivative instrument positions under master netting arrangements.
Less: Netting agreements to assets
Derivative Asset, Fair Value, Gross Liability
Less: Netting agreements to liabilities
Derivative Liability, Fair Value, Gross Asset
Netting of cash collateral received
Derivative Asset, Collateral, Obligation to Return Cash, Offset
Netting of cash collateral paid
Derivative Liability, Collateral, Right to Reclaim Cash, Offset
Total trading account derivatives, assets
Derivative Asset
Total derivative liabilities
Derivative Liability
Cash collateral received
Derivative, Collateral, Obligation to Return Cash
Cash collateral paid
Derivative, Collateral, Right to Reclaim Cash
Non-cash collateral received
Derivative, Collateral, Obligation to Return Securities
Non-cash collateral paid
Derivative, Collateral, Right to Reclaim Securities
Total Net receivables
Derivative Asset, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election
Total Net payables
Derivative Liability, Fair Value, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election
Cash collateral paid, gross
Derivative Collateral Right to Reclaim Cash Gross
Represents the gross amount of the right to reclaim cash collateral before any offset against net derivative instrument positions under master netting arrangements.
Cash collateral received, gross
Derivative Collateral Obligation to Return Cash Gross
Represents the gross the amount of the obligation to return cash collateral before any offset against net derivative instrument positions under master netting arrangements.
Does not meet applicable offsetting guidance, assets
Derivative Asset, Not Subject to Master Netting Arrangement
Does not meet applicable offsetting guidance, liabilities
Derivative Liability, Not Subject to Master Netting Arrangement
Credit card securitizations
Collateralized Credit Card Securities [Member]
Mortgage-backed securities - U.S. agency-sponsored
Mortgage securitizations - Non-agency-sponsored
Mortgage-backed Securities, Issued by Private Enterprises [Member]
Collateralized debt obligations (CDOs)
Collateralized Debt Obligations [Member]
Collateralized loan obligations (CLOs)
Collateralized Loan Obligations [Member]
Municipal investments
Municipal Investments [Member]
This element represents municipal investments.
Investment funds
Investment Funds [Member]
This element represents company's investment funds that invest in various asset classes including private equity, hedge funds, real estate, fixed income and infrastructure for which it earns management fee.
Trust preferred securities
Trust Preferred Securities Subject to Mandatory Redemption [Member]
Other
Other than Securities Investment [Member]
Total involvement with SPE assets
Special Purpose Entity Total Involvement with S P E Assets
The amount of total involvement with Special Purpose Entity assets, including significant unconsolidated Variable Interest Entity assets and consolidated Variable Interest Entity and Special Purpose Entity assets.
Consolidated VIE / SPE assets
Variable Interest Entity, Consolidated, Carrying Amount, Assets
Significant unconsolidated VIE assets
Maximum exposure to loss in significant unconsolidated VIEs
Variable Interest Maximum Exposure to Loss [Abstract]
Funded Exposure
Funded Exposure [Abstract]
Maximum exposure to loss in significant unconsolidated VIEs, debt investments
Variable Interest Entity Debt Investments Funded Maximum Exposure to Loss
This element represents the maximum funded exposure to loss in a significant unconsolidated variable interest entity, related to debt investments.
Maximum exposure to loss in significant unconsolidated VIEs, equity investments
Variable Interest Entity Equity Investments Funded Maximum Exposure to Loss
This element represents the maximum funded exposure to loss in a significant unconsolidated variable interest entity, related to equity investments.
Unfunded Exposure
Unfunded Exposure [Abstract]
Maximum exposure to loss in significant unconsolidated VIEs, funding commitments
Variable Interest Entity Funding Commitments Unfunded Maximum Exposure to Loss
This element represents the maximum unfunded exposure to loss in a significant unconsolidated variable interest entity, related to funding commitments.
Maximum exposure to loss in significant unconsolidated VIEs, guarantees and derivatives
Variable Interest Entity Guarantees and Derivatives Unfunded Maximum Exposure to Loss
This element represents the maximum unfunded exposure to loss in a significant unconsolidated variable interest entity, related to guarantees and derivatives.
Funded and Unfunded Exposure
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure [Abstract]
Maximum exposure to loss in significant unconsolidated VIEs
Private label mortgage-backed securities, outstanding
Private Label Mortgage Backed Securities Outstanding Value
Represents the balance of private label mortgage-backed securitizations from 2005 to 2008 where the Company has no variable interest or continuing involvement as servicer.
Stockholders' Equity Note [Abstract]
PREFERRED STOCK
Stockholders' Equity Note Disclosure [Text Block]
Investment Holdings [Table]
Investment Holdings [Table]
Investment Type [Axis]
Investment Type [Axis]
Investments [Domain]
Investments [Domain]
Hedge funds
Hedge Funds [Member]
Private equity funds
Private Equity Funds [Member]
Real estate funds
Real Estate Funds [Member]
Investment Holdings
Investment Holdings [Line Items]
Investments in Alternative Investment Funds
Investment Owned, Balance [Abstract]
Alternative investment funds, fair value
Alternative Investments, Fair Value Disclosure
Alternative investment funds, unfunded commitments
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments
Alternative investment funds, redemption frequency (if currently eligible)
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Investment Redemption, Frequency
Alternative investment funds, redemption notice period
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Notice Period
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Notice Period
Amount of fund assets valued using net asset values provided by third party asset managers which is included in the total fair value amount of alternative investment funds
Fund Assets Valued by Net Asset Values Provided by Third Party Asset Managers
The amount of fund assets that are valued using NAV (net asset value) provided by third party asset managers is included in total alternative investment fund fair value.
Derivative Notionals
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]
Derivative Mark-to-Market (MTM) Receivables/Payables
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Derivative Instruments, Gain (Loss) [Table]
Derivative Instruments, Gain (Loss) [Table]
Derivatives not designated in a qualifying hedging relationship
Hedging Relationship [Axis]
Hedging Relationship [Axis]
Hedging Relationship [Domain]
Hedging Relationship [Domain]
Fair value hedges
Fair Value Hedging [Member]
Derivative gain (losses)
Derivative Instruments, Gain (Loss) [Line Items]
Schedule of gains (losses) on derivatives not designated in a qualifying hedging relationship recognized in Other revenue and gains (losses) on fair value hedges
Derivative Instruments, Gain (Loss) [Table Text Block]
Schedule of pretax change in Accumulated other comprehensive income (loss) from cash flow hedges
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule of key characteristics of credit derivative portfolio
Disclosure of Credit Derivatives [Table Text Block]
Allowance for credit losses
Allowance for Loan and Lease Losses [Roll Forward]
Allowance for loan losses at beginning of period
Gross credit losses
Allowance for Loan and Lease Losses, Write-offs
Gross recoveries
Allowance for Loan and Lease Loss, Recovery of Bad Debts
NCLs
Allowance for Loan and Lease Losses Write-offs, Net
Net reserve build (releases)
Provision for Loan and Lease Losses for Reserve Builds or Releases, Net
Provision charged or released during the period against earnings for credit losses on loans and leases receivable that are expected and were collectively evaluated for impairment.
Net specific reserve builds (releases)
Provision for Loan and Lease Losses for Specific Reserve Builds or Releases, Net
Provision charged or released during the period against earnings for credit losses on loans and leases receivable that are expected and were individually evaluated for impairment.
Total provision for credit losses
Other, net
Allowance for Loan and Lease Losses, Adjustments, Other
Allowance for loan losses at the end of year
Allowance for credit losses on unfunded lending commitments
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Allowance for credit losses on unfunded lending commitments at beginning of year
Unfunded Lending Commitments Allowance for Credit Losses
The reserve to cover probable credit losses related to unfunded lending commitments as of the balance sheet date.
Other, net
Provision for Other Losses
Allowance for credit losses on unfunded lending commitments at end of year
Total allowance for loans, leases, and unfunded lending commitments at end of period
Loans and Leases Receivable and Unfunded Lending Commitments Allowance
The reserve to cover probable credit losses related to loans and leases receivable and unfunded lending commitments as of the balance sheet date.
Schedule of Available-for-sale Securities [Table]
Schedule of Available-for-sale Securities [Table]
Schedule of Available-for-sale Securities
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Debt Maturities
Available-for-sale Securities, Debt Maturities [Abstract]
Due within 1 year, amortized cost
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis
After 1 but within 5 years, amortized cost
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis
After 5 but within 10 years, amortized cost
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis
After 10 years, amortized cost
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis
Total amortized cost
Available-for-sale Debt Securities, Amortized Cost Basis
Fair value, due within 1 year
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value
Fair value, after 1 but within 5 years
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value
Fair value, after 5 but within 10 years
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value
Fair value, after 10 years
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value
Total fair value
Available-for-sale Securities, Debt Securities
Receivables from customers
Receivables from Customers
Receivables from brokers, dealers, and clearing organization
Receivables from Brokers-Dealers and Clearing Organizations
Total brokerage receivable
Brokerage Receivables
Amount due from customers, brokers, dealers, and clearing organizations related to the entity's brokerage activities and operations. The amount due from customers are for fees and charges arising from transactions related to brokerage activities and operations. The amount receivable from brokers, dealers, and clearing organizations may include receivables for securities borrowed, open transactions, good faith and margin deposits, commissions and floor brokerage items; and would also include cash and securities [guarantee] on deposit with [commodities] clearing organizations and other entities which provide services necessary to operations of the Company.
Payables to customers
Payables to Customers
Payables to brokers, dealers, and clearing organization
Payables to Broker-Dealers and Clearing Organizations
Total brokerage payable
Brokerage Payables
Amount due to customer, broker-dealers, and clearing organizations related to the entity's brokerage activities and operations. The amount due to broker-dealers and clearing organizations may include amounts payable for securities failed to receive, certain deposits received for securities loaned, amounts payable to clearing organizations on open transactions, and floor-brokerage payables. In addition, the net receivable or payable arising from unsettled trades would be reflected in those captions. A broker-dealer that purchases securities, either for its own account or for a customer's account, but does not receive the securities on the settlement date records the amount of money representing the purchase price of the securities, including any accrued interest, as a liability to the selling broker-dealer. This liability is paid when the securities are received by the purchasing broker-dealer.
Schedule of loans
Financing Receivables Carrying Amount [Table Text Block]
Disclosure of the carrying amount of loans and lease receivables as of the balance sheet date, net of deferred income.
Schedule of loan delinquency and non-accrual details
Schedule of Financing Receivables, Non Accrual Status [Table Text Block]
Schedule of loans credit quality indicators
Financing Receivable Credit Quality Indicators [Table Text Block]
Schedule of impaired loans
Impaired Financing Receivables [Table Text Block]
Schedule of troubled debt restructurings
Troubled Debt Restructurings on Financing Receivables [Table Text Block]
Schedule of troubled debt restructuring loans that defaulted
Financing Receivable Troubled Debt Restructurings that Subsequently Defaulted [Table Text Block]
Tabular disclosure of troubled debt restructuring (TDR) loans that defaulted during the period and for which the payment default occurred within one year of the modification.
Net Investment Hedging
Net Investment Hedging [Member]
Net investment hedge ineffectiveness recorded in earnings
Amount of Ineffectiveness on Net Investment Hedges
Gain (loss) recognized in OCI, effective portion, net
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net
FEDERAL FUNDS, SECURITIES BORROWED, LOANED, AND SUBJECT TO REPURCHASE AGREEMENTS
Repurchase Agreements, Resale Agreements, Securities Borrowed, and Securities Loaned Disclosure [Text Block]
Statement of Cash Flows [Abstract]
Cash flows from operating activities of continuing operations
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]
Net income before attribution of noncontrolling interests
Net income attributable to noncontrolling interests
Gain (loss) from discontinued operations, net of taxes
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax
Income from continuing operations—excluding noncontrolling interests
Income (Loss) from Continuing Operations Attributable to Parent
Adjustments to reconcile net income to net cash provided by operating activities of continuing operations
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization
Depreciation, Amortization and Accretion, Net
Realized gains from sales of investments
Gain (Loss) on Sale of Securities, Net
Net impairment losses recognized in earnings
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities
Change in trading account assets
Increase (Decrease) in Trading Securities
Change in trading account liabilities
Increase (Decrease) in Trading Liabilities
Change in brokerage receivables net of brokerage payables
Increase (Decrease) in Broker-Dealer Related Receivables (Payables), Net
Change in loans held-for-sale
Increase (Decrease) in Loans Held-for-sale
Change in other assets
Increase (Decrease) in Other Operating Assets
Change in other liabilities
Increase (Decrease) in Other Operating Liabilities
Other, net
Other Noncash Income (Expense)
Total adjustments
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities
Net cash provided by (used in) operating activities of continuing operations
Net Cash Provided by (Used in) Operating Activities, Continuing Operations
Cash flows from investing activities of continuing operations
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]
Change in deposits with banks
Proceeds from (Payments for) in Interest-bearing Deposits in Banks
Change in federal funds sold and securities borrowed or purchased under agreements to resell
Proceeds from (Payments for) Federal Funds Sold and Securities Purchased under Agreements to Resell, Net
Change in loans
Payments for (Proceeds from) Loans and Leases
Proceeds from sales and securitizations of loans
Proceeds from Sale of Loans and Leases Held-for-investment
Purchases of investments
Payments to Acquire Investments
Proceeds from sales of investments
Proceeds from Sale of Other Investments
Proceeds from maturities of investments
Proceeds from Maturities, Prepayments and Calls of Other Investments
Capital expenditures on premises and equipment and capitalized software
Payments to Acquire Property, Plant, and Equipment
Proceeds from sales of premises and equipment, subsidiaries and affiliates, and repossessed assets
Proceeds from Sale of Productive Assets
Net cash provided by (used in) investing activities of continuing operations
Net Cash Provided by (Used in) Investing Activities, Continuing Operations
Cash flows from financing activities of continuing operations
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Dividends paid
Payments of Dividends
Issuance of preferred stock
Proceeds from Issuance of Preferred Stock and Preference Stock
Treasury stock acquired
Payments for Repurchase of Common Stock
Stock tendered for payment of withholding taxes
Payments Related to Tax Withholding for Share-based Compensation
Change in federal funds purchased and securities loaned or sold under agreements to repurchase
Increase (Decrease) in Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Net
Issuance of long-term debt
Proceeds from Issuance of Long-term Debt
Payments and redemptions of long-term debt
Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities
Change in deposits
Increase (Decrease) in Deposits
Change in short-term borrowings
Proceeds from (Repayments of) Short-term Debt
Net cash used in financing activities of continuing operations
Net Cash Provided by (Used in) Financing Activities, Continuing Operations
Effect of exchange rate changes on cash and cash equivalents
Effect of Exchange Rate on Cash and Cash Equivalents, Continuing Operations
Change in cash and due from banks
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and due from banks at beginning of period
Cash and Due from Banks
Cash and due from banks at end of period
Supplemental disclosure of cash flow information for continuing operations
Supplemental Cash Flow Information [Abstract]
Cash paid during the year for income taxes
Income Taxes Paid, Net
Cash paid during the year for interest
Interest Paid, Net
Non-cash investing activities
Cash Flow Noncash Investing Activities Disclosure [Abstract]
Decrease in net loans associated with significant disposals reclassified to HFS
Decrease in Net Loans Associated with Significant Disposals Reclassified to Held-For-Sale
Decrease in Net Loans Associated with Significant Disposals Reclassified to Held-For-Sale
Decrease in investments associated with significant disposals reclassified to HFS
Decrease in Investments Associated with Significant Disposals Reclassified to Held-for-sale
Decrease in Investments Associated with Significant Disposals Reclassified to Held-for-sale
Decrease in goodwill and intangible assets associated with significant disposals reclassified to HFS
Decrease in Goodwill and Intangible Asset Associated with Significant Disposal Reclassified to Held-for-sale
Decrease in Goodwill and Intangible Asset Associated with Significant Disposal Reclassified to Held-for-sale
Transfers to loans HFS from loans
Transfer of Portfolio Loans and Leases to Held-for-sale
Transfers to OREO and other repossessed assets
Real Estate Owned, Transfer to Real Estate Owned
Non-cash financing activities
Additional Cash Flow Elements, Financing Activities [Abstract]
Decrease in long-term debt associated with significant disposals reclassified to HFS
Decrease in Long-term Debt Associated with Significant Disposals Reclassified to Held-for-sale
Decrease in Long-term Debt Associated with Significant Disposals Reclassified to Held-for-sale
Derivative [Table]
Derivative [Table]
Hedging instruments under ASC 815 (SFAS 133)
Net investment hedge under ASC 815 (SFAS 133)
Other derivative instruments, Trading derivatives
Nondesignated Principal and Proprietary Transactions [Member]
Represents derivative instruments not designated as hedging instruments, used by the entity in trading transactions on behalf of its customers and for proprietary trading. Excludes derivative instruments used as economic hedges.
Other derivative instruments, Management hedges
Nondesignated Economict Hedges [Member]
Derivative instruments not designated as hedging instruments used in certain economic hedging relationships identified for management purposes. Excludes derivative instruments used in trading activities.
Interest rate contract options
Interest Rate Option [Member]
An option contract giving the holder to buy (for a call) or sell (for a put) a security with a certain interest rate at a given strike price on or before the expiration date.
Foreign exchange contract options
Foreign Exchange Option [Member]
Equity contract options
Equity Option [Member]
Derivative, by Nature [Axis]
Derivative, by Nature [Axis]
Derivative, Name [Domain]
Derivative, Name [Domain]
Swaps
Swap [Member]
Futures and forwards
Futures and Forward [Member]
Represents the aggregate of (i) forward-based contracts to make or take delivery of a specified financial instrument, foreign currency, or commodity at a specified future date or during a specified period at as specified price or yield (futures) and (ii) Contracts negotiated between two parties to purchase and sell a specific quantity of a financial instrument, foreign currency, or commodity at a price specified at origination of the contract, with delivery and settlement at a specified future date (forwards).
Written or Sold
Derivatives
Derivative [Line Items]
Derivative notionals
Derivative, Notional Amount
Investment [Table]
Investment [Table]
Securities available-for-sale (AFS)
Held-to-maturity Securities
Other assets
Other Security Investments [Member]
Schedule of Available-for-sale and Held-to-maturity Securities
Investment [Line Items]
OTTI on Investments disclosures
Impairment Losses Related to Securities [Abstract]
Total OTTI losses recognized during the period
Other than Temporary Impairment Losses, Investments with Intent Not to Sell
For investments that the entity does not intend to sell nor will likely be required to sell, the amount by which the fair value of an investment is less than the amortized cost basis or carrying amount at the balance sheet date and the decline in fair value is deemed to be other than temporary, prior to considering whether or not such amount is recognized in earnings or other comprehensive income.
Net impairment losses recognized in earnings for securities that the Company does not intend to sell nor will likely be required to sell
Other than Temporary Impairment Losses, Investments Not Being Sold, Portion Recognized in Earnings, Net
For investments that the entity does not intend to sell nor will likely be required to sell, the amount by which the fair value of an investment is less than the amortized cost basis or carrying amount at the balance sheet date and the decline in fair value is deemed to be other than temporary, the amount recognized in earnings for securities (after net of the amount recognized in other comprehensive income).
Impairment losses recognized in earnings for securities that the Company intends to sell or more- likely-than-not will be required to sell before recovery
Other than Temporary Impairment Losses, Investments with Intent to Sell
For investments that the entity does intend to sell or will more-likely-than-not be required to sell before recovery, the amount by which the fair value of an investment is less than the amortized cost basis or carrying amount at the balance sheet date and the decline in fair value is deemed to be other than temporary, the amount recognized in earnings for securities.
Net impairment losses recognized in earnings
Variable Interest Entities [Axis]
Variable Interest Entities [Axis]
Variable Interest Entity, Classification [Domain]
Variable Interest Entity, Classification [Domain]
Consolidated VIEs
Variable Interest Entity, Primary Beneficiary [Member]
Significant unconsolidated VIE assets
Variable Interest Entity, Not Primary Beneficiary [Member]
Cash
Trading account assets
Trading Securities
Investments
Investments Excluding Trading Securities
Sum of the carrying amounts as of the balance sheet date of all investments, excluding trading account assets.
Total loans, net
Loans and Leases Receivable, Net Amount
Other assets
Other Assets
Total assets
Assets
Short-term borrowings
Short Term Borrowings including Recourse to Credit of Entity
Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer including short term debt that the creditor have recourse to the general credit of the reporting entity.
Long-term debt
Long Term Debt including Recourse to Credit of Entity
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Also includes long term debt that the creditor have recourse to the general credit of the reporting entity.
Other liabilities
Other Liabilities including Recourse to Credit of Entity
The aggregate carrying amount, as of the balance sheet date, of liabilities not separately disclosed in the balance sheet including other liability that the creditor have recourse to the general credit of the reporting entity.
Total Liabilities
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities
Statement of Stockholders' Equity [Abstract]
Statement [Table]
Statement [Table]
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Citigroup stockholders' equity
Parent [Member]
Preferred stock at aggregate liquidation value
Preferred Stock [Member]
Citigroup common stockholders' equity
Common Shareholders' Equity [Member]
The amount of stockholders equity attributable to common shareholders.
Common stock and additional paid-in capital
Common Stock Including Additional Paid in Capital [Member]
Retained earnings
Retained Earnings [Member]
Treasury stock, at cost
Treasury Stock [Member]
Citigroup's accumulated other comprehensive income (loss)
AOCI Attributable to Parent [Member]
Noncontrolling interests
Noncontrolling Interest [Member]
Statement [Line Items]
Statement [Line Items]
Increase (Decrease) in Stockholders' Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of year
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Adjustment to opening balance, net of taxes
Cumulative Effect of New Accounting Principle in Period of Adoption
Adjusted balance, beginning of year
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance
Issuance of new preferred stock
Stock Issued During Period, Value, New Issues
Employee benefit plans
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Preferred stock issuance expense
Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs
Common dividends
Dividends, Common Stock
Preferred dividends
Dividends, Preferred Stock
Tax benefit
Cumulative Effect on Retained Earnings, Tax
Employee benefit plans
Stock Issued During Period, Value, Stock Options Exercised
Treasury stock acquired
Treasury Stock, Value, Acquired, Cost Method
Transactions between Citigroup and the noncontrolling-interest shareholders
Increase (Decrease) from Transactions Between Consolidating Entity and Noncontrolling Interest Shareholders
Represents the amount of decrease (increase) in noncontrolling-interest on transaction with noncontrolling-interest holders.
Net income
Dividends paid to noncontrolling-interest shareholders
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders
Other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax
Other
Stockholders' Equity, Other
Net change in noncontrolling interests
Noncontrolling Interest, Period Increase (Decrease)
Balance, end of year
Statement of Financial Position [Abstract]
Consolidated VIEs
Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member]
Assets
Assets [Abstract]
Cash and due from banks
Deposits with banks
Interest-bearing Deposits in Banks and Other Financial Institutions
Federal funds sold and securities borrowed or purchased under agreements to resell (including $135,894 and $144,191 as of March 31, 2015 and December 31, 2014, respectively, at fair value)
Carrying Value of Federal Funds Sold, Securities Purchased under Agreements to Resell, and Deposits Paid for Securities Borrowed
Brokerage receivables
Trading account assets (including $105,710 and $106,217 pledged to creditors at March 31, 2015 and December 31, 2014, respectively)
Investments:
Investments, Excluding Trading [Abstract]
Investments, Excluding Trading [Abstract]
Available for sale (including $12,595 and $13,808 pledged to creditors as of March 31, 2015 and December 31, 2014, respectively)
Available-for-sale Securities
Held to maturity (including $2,489 and $2,974 pledged to creditors as of March 31, 2015 and December 31, 2014, respectively)
Non-marketable equity securities (including $2,570 and $2,758 at fair value as of March 31, 2015 and December 31, 2014 respectively)
Non-Marketable Equity Securities
Non-Marketable Equity Securities
Investments
Loans:
Loans and Leases Receivable, Net of Deferred Income [Abstract]
Allowance for loan losses
Total loans, net
Intangible assets (other than MSRs)
Intangible Assets, Net (Excluding Goodwill)
Mortgage servicing rights (MSRs)
Servicing Asset at Fair Value, Amount
Other assets (including $8,936 and $7,762 as of March 31, 2015 and December 31, 2014, respectively, at fair value)
Liabilities
Liabilities [Abstract]
Non-interest-bearing deposits in U.S. offices
Noninterest-bearing Deposit Liabilities, Domestic
Interest-bearing deposits in U.S. offices (including $976 and $994 as of March 31, 2015 and December 31, 2014, respectively, at fair value)
Interest-bearing Deposit Liabilities, Domestic
Non-interest-bearing deposits in offices outside the U.S.
Noninterest-bearing Deposit Liabilities, Foreign
Interest-bearing deposits in offices outside the U.S. (including $674 and $690 as of March 31, 2015 and December 31, 2014, respectively, at fair value)
Interest-bearing Deposit Liabilities, Foreign
Total deposits
Federal funds purchased and securities loaned or sold under agreements to repurchase (including $34,225 and $36,725 as of March 31, 2015 and December 31, 2014, respectively, at fair value)
Carrying Value of Federal Funds Purchased, Securities Sold under Agreements to Repurchase, and Deposits Received for Securities Loaned
Brokerage payables
Trading account liabilities
Trading Liabilities
Short-term borrowings (including $926 and $1,496 as of March 31, 2015 and December 31, 2014, respectively, at fair value)
Short-term Debt
Long-term debt (including $25,409 and $26,180 as of March 31, 2015 and December 31, 2014, respectively, at fair value)
Long-term Debt
Other liabilities (including $2,024 and $1,776 as of March 31, 2015 and December 31, 2014, respectively, at fair value)
Other Liabilities
Total liabilities
Liabilities
Stockholders’ equity
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Preferred stock ($1.00 par value; authorized shares: 30 million), issued shares: 478,720 as of March 31, 2015 and 418,720 as of December 31, 2014, at aggregate liquidation value
Preferred Stock, Value, Issued
Common stock ($0.01 par value; authorized shares: 6 billion), issued shares: 3,099,470,853 as of March 31, 2015 and 3,082,037,568 as of December 31, 2014
Common Stock, Value, Issued
Additional paid-in capital
Additional Paid in Capital
Retained earnings
Retained Earnings (Accumulated Deficit)
Treasury stock, at cost: March 31, 2015—65,331,175 shares and December 31, 2014—58,119,993 shares
Treasury Stock, Value
Accumulated other comprehensive income (loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax
Total Citigroup stockholders’ equity
Stockholders' Equity Attributable to Parent
Noncontrolling interest
Stockholders' Equity Attributable to Noncontrolling Interest
Total equity
Total liabilities and equity
Liabilities and Equity
Mortgage-backed securities - Prime
Mortgage Backed Securities Prime [Member]
Securities collateralized by real estate mortgage loans that are classified as prime mortgages.
Mortgage-backed securities - Alt-A
Mortgage Backed Securities Alt A [Member]
Securities collateralized by real estate mortgage loans that are classified as Alt-A mortgages (the risk profile falls between prime and subprime).
Mortgage-backed securities - Subprime
Mortgage Backed Securities Subprime [Member]
Securities collateralized by real estate mortgage loans that are classified as subprime mortgages.
Mortgage-backed securities - Non-U.S. residential
Foreign Residential Mortgage Backed Securities [Member]
Securities collateralized by residential real estate mortgage loan issuances not within the country of domicile of the entity.
Debt Securities Held-to-maturity
Held-to-maturity Securities, Parenthetical Disclosure [Abstract]
Amortized cost
Held-to-maturity Securities, Amortized Cost before Other than Temporary Impairment
Net unrealized gains (losses) recognized in AOCI
Held to Maturity Securities Accumulated Unrecognized Gain (Loss) Including Other than Temporary Impairment Not Credit Loss Pre Tax
Held to Maturity Securities Accumulated Unrecognized Gain (Loss) Including Other than Temporary Impairment Not Credit Loss Pre Tax
Gross unrecognized gains
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain
Gross unrecognized losses
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss
Fair value
RETIREMENT BENEFITS
Pension and Other Postretirement Benefits Disclosure [Text Block]
Schedule of Short-term Debt [Table]
Schedule of Short-term Debt [Table]
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
Significant Citibank Entities
Bank [Member]
This element represents banks.
Citigroup Inc.
Parent Company [Member]
Short-Term Borrowings:
Short-term Debt [Line Items]
Other borrowings
Other Short-term Borrowings
Total short-term borrowings
Collateralized short-term advances from Federal Home Loan Bank
Federal Home Loan Bank, Advances, Maturities Summary, Due in Next Twelve Months
Statement of Comprehensive Income [Abstract]
Add: Citigroup’s other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Net change in unrealized gains and losses on investment securities, net of taxes
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent
Net change in cash flow hedges, net of taxes
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent
Benefit plans liability adjustment, net of taxes
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Parent
Net change in foreign currency translation adjustment, net of taxes and hedges
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent
Citigroup’s total other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Total comprehensive income before attribution of noncontrolling interests
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Less: Net income attributable to noncontrolling interests
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Citigroup’s comprehensive income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
ALLOWANCE FOR CREDIT LOSSES
Allowance for Credit Losses [Text Block]
DISCONTINUED OPERATIONS AND SIGNIFICANT DISPOSALS
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Trading Securities [Abstract]
TRADING ACCOUNT ASSETS AND LIABILITIES
Trading Account Assets and Liabilities [Text Block]
This element represents the complete disclosure, including tables and data, of trading account assets and liabilities, at fair value at the reporting date.
U.S. Treasury
US Treasury Securities [Member]
Agency obligations
US Government Agencies Debt Securities [Member]
Debt securities
Carried at fair value
Carried at cost
Portion at Other than Fair Value Measurement [Member]
Interest and dividends on investments
Interest and Dividend Income, Securities, by Taxable Status [Abstract]
Taxable interest
Interest Income, Securities, Operating, Taxable
Interest exempt from U.S. federal income tax
Interest Income, Securities, Operating, Tax Exempt
Dividends
Dividend Income, Operating
Total interest and dividends
Gross realized investments losses, excluding losses from other-than-temporary impairment
Realized Gain (Loss) on Marketable Securities and Cost Method Investments, Excluding Other than Temporary Impairments, and Other Investments [Abstract]
Gross realized investment gains
Gross Realized Gain on Marketable Securities and Cost Method Investments Excluding Other than Temporary Impairments and Other Investments
This item represents the total gross realized gain included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains realized during the period from the sale of investments accounted for under the cost method of accounting and/or investments that are separately or otherwise not categorized as trading, available-for-sale, or held-to-maturity.
Gross realized investment losses
Gross Realized Loss on Marketable Securities and Cost Method Investments Excluding Other than Temporary Impairments and Other Investments
Gross Realized Loss on Marketable Securities and Cost Method Investments Excluding Other than Temporary Impairments and Other Investments
Net realized gains (losses)
Available-for-sale Securities transferred from Held-to-maturity
Held-to-maturity Securities, Sales or Transfers of Investments [Abstract]
Carrying value of HTM securities sold
Held-to-maturity Securities, Sold Security, Carrying Value
Held-to-maturity Securities, Sold Security, Carrying Value
Net realized gain (loss) on sale of held-to-maturity securities
Held-to-maturity Securities, Sold Security, Realized Gain (Loss)
Carrying value of securities reclassified to available-for-sale
Available-for-sale Securities Transferred from Held to Maturity During the Period Carrying Value
Represents net carrying amount of security which was categorized as held-to-maturity transferred to available-for-sale during the period.
OTTI losses on securities reclassified to available-for-sale
Available-for-sale Securities Transferred from Held to Maturity During the Period Other than Temporary Impairment Losses
Represents the amount of other-than-temporary impairment loss recorded for available-for-sale investments transferred from held-to-maturity before considering whether or not such amount is recognized in earnings or other comprehensive income.
Securities available-for-sale
Available-for-sale Securities [Abstract]
Amortized cost
Available-for-sale Securities, Amortized Cost Basis
Gross unrealized gains
Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax
Gross unrealized losses
Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax
Fair value
Unrealized gains from impact of minority investments and the related allocations and pick up of unrealized gains and losses of AFS securities
Available for Sale Securities Gross Unrealized Gain Impact of Minority Investments and Related Allocations and Pick up of Unrealized Gains
Available for Sale Securities Gross Unrealized Gain Impact of Minority Investments and Related Allocations and Pick up of Unrealized Gains
Unrealized gains from impact of securities reclassified to held-for-sale
Available for Sale Securities, Gross Unrealized Gain, Impact of Securities Reclassified to Held-for-Sale
Available for Sale Securities, Gross Unrealized Gain, Impact of Securities Reclassified to Held-for-Sale
Unrealized loss from impact of securities reclassified to held-for-sale
Available for Sale Securities, Gross Unrealized Loss, Impact of Securities Reclassified to Held-for-Sale
Available for Sale Securities, Gross Unrealized Loss, Impact of Securities Reclassified to Held-for-Sale
New Accounting Pronouncements or Change in Accounting Principle [Table]
New Accounting Pronouncements or Change in Accounting Principle [Table]
Adjustments for New Accounting Pronouncements [Axis]
Adjustments for New Accounting Pronouncements [Axis]
Type of Adoption [Domain]
Type of Adoption [Domain]
Accounting Standards Update 2014-01
Accounting Standards Update 2014-01 [Member]
Accounting Standards Update 2014-14
Accounting Standards Update 2014-14 [Member]
New Accounting Pronouncements or Change in Accounting Principle
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Addition (reduction) in Retained earnings
Addition (reduction) in deferred tax assets
Deferred Tax Assets, Net of Valuation Allowance
Reclassification adjustment
Prior Period Reclassification Adjustment
Schedule of Short-Term Borrowings
Schedule of Short-term Debt [Table Text Block]
Schedule of Long-Term Debt
Schedule of Long-term Debt Instruments [Table Text Block]
Summary of outstanding trust preferred securities
Schedule of Trust Preferred Securities [Table Text Block]
This element represents the complete disclosure related to trust preferred securities, including issuance date, number of securities issued, liquidation value, coupon rate, and other necessary information.
Brazil Creditcard
Brazil Creditcard Business [Member]
Represents details pertaining to the Brazil Credicard business.
Citi Capital Advisors Business
Citi Capital Advisors Business [Member]
Represents the details pertaining to the Citi Capital Advisors Business.
Egg Banking PLC
Egg Banking Plc [Member]
Represents information pertaining to Egg Banking Plc.
German retail banking operations
German Retail Banking Operations [Member]
Represents information pertaining to the German retail banking operations.
Number of transactions
Number of Transactions of Sale Business
Represents the number of separate transactions of sale business.
Ownership interest (as a percent)
Percentage of Ownership Interest in Subsidiary
This element represents the percentage of ownership interest in a subsidiary company directly or indirectly held by the reporting entity.
Residual costs associated with banking operations tax effect
Disposal Group Including Discontinued Operation Residual Costs Associated with Banking Operations Tax Effect
Represents the amount of tax expense or benefit on residual costs associated with banking operations, resulting from the sale of a business component.
Results of Discontinued Operations
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Total revenues, net of interest expense
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)
Adjustments for Change in Accounting Principle [Axis]
Adjustments for Change in Accounting Principle [Axis]
Adjustments for Change in Accounting Principle [Domain]
Adjustments for Change in Accounting Principle [Domain]
New OCC guidance
New Office of Comptroller of Currency Guidance [Member]
Represents the details pertaining to the new guidance issued by the Office of the Comptroller of the Currency.
Loans receivable
Number of loans modified
Financing Receivable, Modifications, Number of Contracts
Post-modification recorded investment
Deferred principal
Financing Receivables Modifications, During the Period Principal Deferred
The amount of principal was deferred during the period relating to the financing receivables modified by troubled debt restructurings. This portion of loan principal is non-interest bearing but still due from borrower.
Contingent principal forgiveness
Financing Receivables Modifications, During the Period Contingent Principal Forgiveness
Represents portion of loan principal that is non-interest bearing and, depending upon borrower performance, eligible for forgiveness.
Principal forgiveness
Financing Receivables Modifications, during the Period Principal Forgiven
The amount of principal was forgiven during the period relating to the financing receivables modified by troubled debt restructurings.
Average interest rate reduction (as a percent)
Financing Receivable Modifications, Average Interest Rate Reduction
Represents the average interest rate reduction given under troubled debt restructurings.
Post-modification recorded investment for borrowers that have gone through Chapter 7 bankruptcy
Financing Receivable Modifications During the Period Post Modification Recorded Investment for Borrowers Gone Through Chapter 7 Bankruptcy
The amount of the outstanding recorded investment related to financing receivables that have been modified during the period by troubled debt restructurings after the financing receivable has been modified for borrowers that have gone through Chapter 7 bankruptcy.
Loans in default
Summary of preferred stock outstanding
Schedule of Preferred Stock [Table Text Block]
Tabular disclosure of preferred stock, including but not limited to dividend rate, redemption price etc.
Held-to-maturity Securities, Continuous Unrealized Loss Position
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Fair value less than 12 months
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value
Gross unrecognized losses less than 12 months
Held-to-maturity Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Fair value 12 months or longer
Held-to-maturity Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value
Gross unrecognized losses 12 months or longer
Held-to-maturity Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Fair value, total
Held-to-maturity Securities, Continuous Unrealized Loss Position, Fair Value
Gross unrecognized losses, total
Held-to-maturity Securities, Continuous Unrealized Loss Position, Accumulated Loss
Unrealized loss, other than temporary impairment, not credit loss, recorded in AOCI
Held to Maturity Securities Accumulated Unrecognized Other Comprehensive Loss Other than Temporary Impairment Not Credit Loss Pre Tax
Amount of accumulated net unrealized loss related to portion of other than temporary impairment (OTTI) due to factors other than credit losses on debt securities categorized as held-to-maturity that an entity does not intend to sell and which it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis of the debt security. The amount represented by this item is before tax, as applicable.
DERIVATIVES ACTIVITIES
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Schedule of Credit Derivatives [Table]
Schedule of Credit Derivatives [Table]
Interest Rate Swap [Member]
Interest Rate Swap [Member]
Industry of Counterparty, Type [Axis]
Industry of Counterparty, Type [Axis]
Industry of Counterparty [Domain]
Industry of Counterparty [Domain]
Bank
Broker-dealer
Broker Dealer [Member]
This element represents broker-dealers.
Non-financial
Non Financial [Member]
This element represents the nonfinancial industries.
Insurance and other financial institutions
Insurance and Other Financial Institutions [Member]
This element represents insurance and other financial institutions.
Credit Derivatives Contract Type [Axis]
Credit Derivatives Contract Type [Axis]
Credit Derivatives Contract Type [Domain]
Credit Derivatives Contract Type [Domain]
Credit default swaps and options
Credit Default Swaps and Options [Member]
Represents information in the aggregate pertaining to (i) a type of swap transaction used as a credit derivative in which one party makes periodic payments to the other and receives the promise of a pay-off if a third party defaults; and (ii) a contract in which one party has the right to claim a payment from another party in the event that a specified credit event occurs over the life of the contract.
Total return swaps and other
Total Return Swap and Other Credit Derivatives [Member]
Represents information pertaining to contracts in which one party makes payments at a fixed or variable rate while the counterparty makes payments based on an asset, including the income and capital gains derived there from, and other credit derivative contracts not separately identified.
Credit Derivative by Maturity [Axis]
Credit Derivative by Maturity [Axis]
Credit derivative by maturity period.
Credit Derivative Maturity [Domain]
Credit Derivative Maturity [Domain]
Different maturity periods to credit derivatives of the entity.
Within 1 year
Credit Derivative Maturities Next Rolling Twelve Months [Member]
Represents the credit derivatives maturing in the next rolling twelve months following the latest balance sheet presented.
From 1 to 5 years
Credit Derivative Maturities Next Rolling Year Two through Five [Member]
Represents the credit derivatives maturing in the second rolling twelve months through the fifth rolling twelve months following the latest balance sheet presented.
After 5 years
Credit Derivative Maturities Rolling after Year Five [Member]
Represents the credit derivatives maturing after the fifth rolling twelve months following the latest balance sheet presented.
Credit Derivative
Credit Derivatives [Line Items]
Percentage of receivables from counterparties with collateral agreements
Credit Risk Derivative Assets, Percentage From Counterparties With Collateral Agreements
Credit Risk Derivative Assets, Percentage From Counterparties With Collateral Agreements
Number of top counterparties which are banks, financial institutions, and other dealers
Derivative, Number of Top Counterparties Which are Banks, Financial Institutions, and Other Dealers
Derivative, Number of Top Counterparties Which are Banks, Financial Institutions, and Other Dealers
Fair value, Receivable
Credit Risk Derivative Assets, at Fair Value
Fair Value, Payable
Credit Risk Derivative Liabilities, at Fair Value
Notionals, Protection Purchased
Credit Derivatives Notional Amount Purchased Credit Protection
Credit Derivatives Notional Amount Purchased Credit Protection
Notionals, Protection Sold
Credit Derivative, Maximum Exposure, Undiscounted
Fair value of derivative in liability position
Derivative, Net Liability Position, Aggregate Fair Value
Fair value of collateral already posted
Collateral Already Posted, Aggregate Fair Value
Number of rating agencies
Credit Derivatives number of Rating Agencies
Represents the number of rating agencies under credit derivatives.
Additional collateral to be posted
Additional Collateral, Aggregate Fair Value
Collateral to be segregated
Derivative Collateral Obligation to Return Cash Portion to be Segregated
The portion amount of the collateral would be required to segregate with third party custodians upon a certain condition.
Aggregate cash obligations and collateral requirements
Credit Derivative Aggregate Cash Obligations and Collateral Requirements
The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features and a portion amount of the collateral which previously received from existing derivative counterparties would be required to segregate with third party custodians if the credit-risk-related contingent features were triggered at the end of the reporting period.
Amount derecognized
Transfer of Financial Assets Accounted for as Sales, Amount Derecognized
Cash proceeds received for assets derecognized
Transfer of Financial Assets Accounted for as Sales, Cash Proceeds Received for Assets Derecognized, Amount
Fair value of derecognized assets
Transfer of Financial Assets Accounted for as Sales, Fair Value of Derecognized Assets
Fair value gross derivative assets
Trading derivatives, liability
Gross and net resale agreements and securities borrowing agreements and the related offsetting amount permitted under ASC 210-20-45
Offsetting Assets [Abstract]
Securities purchased under agreements to resell
Offsetting Securities Purchased under Agreements to Resell [Abstract]
Gross amounts of recognized assets
Securities Purchased under Agreements to Resell, Gross
Gross amounts offset on the Consolidated Balance Sheet
Securities Purchased under Agreements to Resell, Liability
Net amounts of assets included on the Consolidated Balance Sheet
Securities Purchased under Agreements to Resell
Amounts not offset on the Consolidated Balance Sheet but eligible for offsetting upon counterparty default
Securities Purchased under Agreements to Resell, Collateral, Obligation to Return Securities
Net amounts
Securities Purchased under Agreements to Resell, Amount Offset Against Collateral
Deposits paid for securities borrowed
Securities Borrowed [Abstract]
Gross amounts of recognized assets
Securities Borrowed, Gross
Net amounts of assets included on the Consolidated Balance Sheet
Deposits Paid for Securities Borrowed, at Carrying Value
Amounts not offset on the Consolidated Balance Sheet but eligible for offsetting upon counterparty default
Securities Borrowed, Collateral, Obligation to Return Securities
Net amounts
Securities Borrowed, Amount Offset Against Collateral
Total
Offsetting Securities Purchased Under Agreements to Resell and Deposits Paid for Securities Borrowed [Abstract]
Total
Securities Purchased under Agreements to Resell Securities Borrowed Gross
Amount, before effects of master netting arrangements, of securities purchased under agreements to resell and securities borrowed.
Gross amounts offset on the Consolidated Balance Sheet
Securities Purchased under Agreements to Resell Securities Borrowed Liability
Amount of liability associated with securities purchased under agreements to resell and securities borrowed.
Net amounts of assets included on the Consolidated Balance Sheet
Carrying Value of Securities Purchased under Agreements to Resell and Deposits Paid for Securities Borrowed
Amounts not offset on the Consolidated Balance Sheet but eligible for offsetting upon counterparty default
Securities Purchased under Agreements to Resell Securities Borrowed Collateral Obligation to Return Securities
Amount of obligation to return securities collateral under master netting arrangements that have not been offset against securities purchased under agreements to resell and securities borrowed.
Net amounts
Securities Purchased Under Agreements to Resell Securities Borrowed Amount Offset Against Collateral
Amount of securities purchased under agreements to resell and securities borrowed offset against an obligation to return collateral under a master netting arrangement. Includes assets not subject to a master netting arrangement and not elected to be offset.
Gross and net repurchase agreements and securities lending agreements and the related offsetting amount permitted under ASC 210-20-45
Offsetting Liabilities [Abstract]
Securities sold under agreements to repurchase
Offsetting Securities Sold under Agreements to Repurchase [Abstract]
Gross amounts of recognized liabilities
Securities Sold under Agreements to Repurchase, Gross
Gross amounts offset on the Consolidated Balance Sheet
Securities Sold under Agreements to Repurchase, Asset
Net amounts of liabilities included on the Consolidated Balance Sheet
Securities Sold under Agreements to Repurchase
Amounts not offset on the Consolidated Balance Sheet but eligible for offsetting upon counterparty default
Securities Sold under Agreements to Repurchase, Collateral, Right to Reclaim Securities
Net amounts
Securities Sold under Agreements to Repurchase, Amount Offset Against Collateral
Deposits received for securities loaned
Securities Loaned [Abstract]
Gross amounts of recognized liabilities
Securities Loaned, Gross
Net amounts of liabilities included on the Consolidated Balance Sheet
Deposits Received for Securities Loaned, at Carrying Value
Amounts not offset on the Consolidated Balance Sheet but eligible for offsetting upon counterparty default
Securities Loaned, Collateral, Right to Reclaim Securities
Net amounts
Securities Loaned, Amount Offset Against Collateral
Total
Offsetting Securities Sold Under Repurchase Agreements and Deposits Received for Securities Loaned [Abstract]
Gross amounts of recognized liabilities
Securities Sold under Agreements to Resell Securities Loaned Gross
Amount, before effects of master netting arrangements, of securities sold under agreements to repurchase and securities loaned.
Gross amounts offset on the Consolidated Balance Sheet
Securities Sold under Agreements to Resell Securities Loaned Asset
Amount of asset associated with securities sold under agreements to repurchase and securities loaned.
Net amounts of liabilities included on the Consolidated Balance Sheet
Carrying Value of Securities Sold under Repurchase Agreements and Deposits Received for Securities Loaned
Amounts not offset on the Consolidated Balance Sheet but eligible for offsetting upon counterparty default
Securities Sold under Agreements to Resell Securities Loaned Collateral Right to Reclaim Securities
Amount of right to receive securities collateral under master netting arrangements that have not been offset against securities sold under agreements to repurchase and securities loaned.
Net amounts
Securities Sold under Agreements to Resell Securities Loaned Amount Offset Against Collateral
Amount of securities sold under agreements to repurchase and securities loaned offset against a right to receive collateral. Includes liabilities not subject to a master netting arrangement and not elected to be offset.
GUARANTEES AND COMMITMENTS
Pledged Assets Collateral Commitments and Guarantees [Text Block]
Description of assets pledged, collateral received by the Company, lease commitments, guarantee obligations and credit commitments.
Fees and Commissions [Abstract]
Commissions and fees revenues
Schedule of Commission and Fee Revenue [Table Text Block]
Schedule of commission and fee revenues earned by the entity.
Schedule of consolidated and unconsolidated VIEs with which the Company holds significant variable interests
Schedule of Variable Interest Entities [Table Text Block]
Schedule of funding commitments of unconsolidated Variable Interest Entities
Schedule of Funding Commitments of Unconsolidated Variable Interest Entities [Table Text Block]
This element represents the schedule of funding commitments of unconsolidated Variable Interest Entities.
Schedule of carrying amounts and classifications of consolidated assets that are collateral for consolidated VIE and SPE obligations
Schedule of Carrying Amounts and Classifications of Consolidated V I E and S P E Assets [Table Text Block]
This element represents the schedule of carrying amounts and classifications of consolidated assets that are collateral for consolidated VIE and SPE obligations.
Schedule of significant interests in unconsolidated VIEs - balance sheet classification
Schedule of Significant Interests in Unconsolidated Variable Interest Entities [Table Text Block]
This element represents the schedule of carrying amounts and classifications of significant interests in unconsolidated VIEs.
Schedule of securitized credit card receivables
Schedule of Securitized Credit Card Receivables [Table Text Block]
This element represents the schedule of securitized credit card receivables.
Schedule of Master Trust liabilities (at par value)
Schedule of Trust One Liabilities [Table Text Block]
This element represents the schedule of liabilities of credit card receivables securitization trusts, for the first trust.
Schedule of Omni Trust liabilities (at par value)
Schedule of Trust Two Liabilities [Table Text Block]
This element represents the schedule of liabilities of credit card receivables securitization trusts, for the second trust.
Schedule of cash flow information, mortgage securitizations
Schedule of Cash Flow Mortgage Securitizations [Table Text Block]
This element represents the schedule of cash flow information related to the mortgage securitizations of the segment.
Schedule of key assumptions used in measuring fair value of retained interest at the date of sale or securitization of mortgage receivables
Schedule of Key Assumptions Measuring Fair Value of Retained Interests of Mortgage Receivables [Table Text Block]
This element represents the schedule of key assumptions used in measuring fair value of retained interests at the date of sale or securitization of mortgage receivables of the segment.
Schedule of key assumptions used to value retained interests and sensitivity of adverse changes of 10% and 20%, mortgage securitizations
Schedule of Key Assumptions to Value Retained Interests and Sensitivity of Adverse Changes of 10 Percent and 20 Percent Mortgage Securitizations [Table Text Block]
This element represents the schedule of key assumptions used to value retained interests and sensitivity of adverse changes of 10% and 20% for mortgage securitizations of the segment.
Schedule of changes in capitalized MSRs
Schedule of Servicing Assets at Fair Value [Table Text Block]
Schedule of fees received on servicing previously securitized mortgages
Schedule of Fees Received on Mortgage Servicing Rights [Table Text Block]
This element represents the schedule of fees received on servicing previously securitized mortgages.
Schedule of key assumptions for measuring fair value of retained interests at the date of sale or securitization of CDOs and CLOs
Schedule of Key Assumptions for Measuring Fair Value of Retained Interests of Collateralized Debt Obligations and Collateralized Loan Obligations [Table Text Block]
This element represents the schedule of key assumptions for measuring fair value of retained interests at the date of sale or securitization of CDOs and CLOs of the segment.
Schedule of sensitivity of adverse changes of 10% and 20% to discount rate, CDOs and CLOs
Schedule of Sensitivity of Adverse Changes Discount Rate on Collateralized Debt Obligations and Collateralized Loan Obligations [Table Text Block]
This element represents the schedule of sensitivity of adverse changes of 10% and 20% to the discount rate for CDOs and CLOSs.
Schedule of asset-based financing
Schedule of Asset Based Financing Unconsolidated V I E [Table Text Block]
This element represents the schedule of asset-based financing of the segment, total assets of the unconsolidated VIEs with significant involvement and the Company's maximum exposure to loss at balance sheet day.
Schedule of selected cash flow information related to asset-based financing
Schedule of Selected Cash Flow Information Related to Asset Based Financing [Table Text Block]
This element represents the schedule of selected cash flow information related to asset-based financing.
Earnings Per Share [Abstract]
Income from continuing operations before attribution of noncontrolling interests
Less: Noncontrolling interests from continuing operations
Income (Loss) from Continuing Operations Attributable to Noncontrolling Interest
Net income from continuing operations (for EPS purposes)
Income (Loss) from Continuing Operation after Noncontrolling Interest
The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent prior to adjustment for discontinued operations.
Income (loss) from discontinued operations, net of taxes
Less: Preferred dividends
Net income available to common shareholders
Income (Loss) Available to Common Stockholders
This element represents net income available to common shareholders before allocation to participating securities.
Less: Dividends and undistributed earnings allocated to employee restricted and deferred shares with nonforfeitable rights to dividends, applicable to basic EPS
Income Allocated to Employee Restricted and Deferred Shares that Contain Nonforfeitable Rights to Dividends
This element represents the income allocated to employee restricted and deferred shares that contain nonforfeitable rights to dividends.
Net income allocated to common shareholders for basic EPS
Net Income (Loss) Available to Common Stockholders, Basic
Add: Interest expense, net of tax, and dividends on convertible securities and adjustment of undistributed earnings allocated to employee restricted and deferred shares with nonforfeitable rights to dividends, applicable to diluted EPS
Dilutive Securities, Effect on Basic Earnings Per Share
Net income allocated to common shareholders for diluted EPS
Net Income (Loss) Available to Common Stockholders, Diluted
Weighted-average common shares outstanding applicable to basic EPS
Effect of dilutive securities
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Options (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Written Put Options
Other employee plans (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Convertible securities (in shares)
Incremental Common Shares Attributable to Convertible Securities
This element represents the incremental common shares attributable to convertible securities, which are considered as dilutive for the purposes of computing diluted earnings per share.
Adjusted weighted-average common shares outstanding applicable to diluted EPS
Discontinued operations (in dollars per share)
Discontinued operations (in dollars per share)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Antidilutive Securities [Axis]
Antidilutive Securities [Axis]
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name [Domain]
Weighted-average options to purchase common stock
Employee and Directors Stock Options [Member]
An arrangement whereby an employee or member of the Board of Directors is entitled to receive in the future, subject to vesting and other restrictions, a number of shares in the entity at a specified price, as defined in the agreement.
Warrants issued to U.S. Treasury as part of TARP and loss-sharing agreement
Warrants under Troubled Asset Relief Program and Loss Sharing Agreement [Member]
This element represents incremental common shares attributable to warrants issued to U.S. Treasury as part of Troubled Asset Relief Program (TARP) and the loss-sharing agreement that were not included in the computation of diluted earnings per share (EPS).
Class of Warrant or Right [Axis]
Class of Warrant or Right [Axis]
Class of Warrant or Right [Domain]
Class of Warrant or Right [Domain]
Warrant with the exercise price of $178.50
Warrant Exercise Price One [Member]
Warrant Exercise Price One.
Warrant with the exercise price of $106.10
Warrant Exercise Price Two [Member]
Warrant Exercise Price Two.
Antidilutive Securities Excluded from Computation of Earnings Per Share
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per common share (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Antidilutive securities exercise price (in dollars per share)
Class of Warrant or Right, Exercise Price of Warrants or Rights
Reduction of allowance for loan and leases losses due to loans sold or transferred to held-for-sale or to discontinued operations
Allowance for Loan and Lease Losses Loans Sold or Transferred to held for Sale or Discontinued Operations
Amount of reduction of allowance reserve for credit loss arising from sale or transferred to discontinued operations or to held-for-sale of loan and lease portfolios.
Reduction of allowance for loan and leases losses due to transfer to real estate loan portfolio
Allowance For Loan And Lease Losses, Loans Transferred To Real Estate Loan Portfolio
Allowance For Loan And Lease Losses, Loans Transferred To Real Estate Loan Portfolio
Reduction of allowance related to foreign currency translation
Allowance for Loan and Lease Losses, Foreign Currency Translation
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table]
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table]
U.S. Pension Plans
United States Pension Plan of US Entity [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Effect of one-percentage-point increase in discount rates
Defined Benefit Plan, Effect of One Percentage Point Increase in Discount Rates on Pension Expenses
The effect of a one-percentage-point increase in the discount rates on pension expenses.
Effect of one-percentage-point decrease in discount rates
Defined Benefit Plan, Effect of One Percentage Point Decrease in Discount Rates on Pension Expenses
The effect of a one-percentage-point decrease in the discount rates on pension expenses.
Effect of one-percentage-point increase on benefits earned and interest cost for U.S. postretirement plans
Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components
Effect of one-percentage-point decrease on benefits earned and interest cost for U.S. postretirement plans
Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components
Current loans
Performing Financial Instruments [Member]
30-59 day delinquent loans
Financing Receivables, 30 to 59 Days Past Due [Member]
60-90 day deliquent loans
Delinquent Loans 60 to 90 Days [Member]
Delinquent Loans 60 to 90 Days [Member]
91+ day deliquent loans
Delinquent Loans More than 91 Days [Member]
Delinquent Loans More than 91 Days [Member]
Key assumptions for mortgage-backed securities
Default rate projection (as a percent)
Fair Value Inputs, Probability of Default
Defined Benefit Plans by Measurement Period [Axis]
Defined Benefit Plans by Measurement Period [Axis]
Information by defined benefits pension or other postretirement plan by measurement frequency.
Defined Benefit Plans by Measurement Period [Domain]
Defined Benefit Plans by Measurement Period [Domain]
Measurement frequency for defined benefits pension or other postretirement plan.
Plans measured annually
Other than Significant Plans Measured Annually [Member]
Represents information pertaining to defined benefits pension or other postretirement plans which are not significant and measured annually.
Significant Plans Measured Quarterly
Significant Plans Measured Quarterly [Member]
Represents information pertaining to defined benefits pension or other postretirement significant plans measured quarterly.
Change in projected benefit obligation
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Projected benefit obligation at beginning of year
Defined Benefit Plan, Benefit Obligation
Benefits earned during the year
Defined Benefit Plan, Service Cost
Interest cost on benefit obligation
Defined Benefit Plan, Interest Cost
Plan amendments
Defined Benefit Plan, Plan Amendments
Actuarial (gain) loss
Defined Benefit Plan, Actuarial Gain (Loss)
Benefits paid, net of participants’ contributions
Defined Benefit Plan, Benefits Paid Net of Contributions by Plan Participants
The periodic decrease to plan obligations and decrease to plan assets for the amount of payments made: 1) for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment and 2) under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. The amount is net of contributions made by plan participants, which represent a periodic increase to plan obligations and increase to plan assets.
Foreign exchange impact and other
Defined Benefit Plan, Foreign Currency Exchange Rate Gain (Loss)
Projected benefit obligation at period end - Significant Plans
Change in plan assets
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Plan assets at fair value at beginning of year
Defined Benefit Plan, Fair Value of Plan Assets
Actual return on plan assets
Defined Benefit Plan, Actual Return on Plan Assets
Company contributions
Defined Benefit Plan, Contributions by Employer
Plan participants’ contributions
Defined Benefit Plan, Contributions by Plan Participants
Benefits paid
Defined Benefit Plan, Benefits Paid
Foreign exchange impact and other
Defined Benefit Plan, Foreign Currency Exchange Rate Changes, Plan Assets
Plan assets at fair value at period end - Significant Plans
Funded status of the plans
Defined Benefit Plan, Funded Status of Plan
Net amount recognized
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Benefit asset
Defined Benefit Plan, Assets for Plan Benefits
Benefit liability
Pension and Other Postretirement Defined Benefit Plans, Liabilities
Net amount recognized on the balance sheet - Significant Plans
Defined Benefit Plan, Amounts Recognized in Balance Sheet
Amounts recognized in Accumulated other comprehensive income (loss)
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax [Abstract]
Prior service benefit (cost)
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax
Net actuarial gain (loss)
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax
Net amount recognized in equity-pretax
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax
Accumulated benefit obligation at period end
Defined Benefit Plan, Accumulated Benefit Obligation
Credit and funding valuation adjustments contra-liability (contra-asset)
Credit and Funding Valuation Adjustments [Abstract]
Credit and Funding Valuation Adjustments [Abstract]
Counterparty CVA
Counterparty Derivative Credit Risk Valuation Adjustment, Derivative Assets
Counterparty Derivative Credit Risk Valuation Adjustment, Derivative Assets
Asset FVA
Derivative Funding Valuation Adjustment, Derivative Assets
Derivative Funding Valuation Adjustment, Derivative Assets
Citigroup (own-credit) CVA
Derivative Credit Risk Valuation Adjustment, Derivative Liabilities
Liability FVA
Derivative Funding Valuation Adjustment, Derivative Liabilities
Derivative Funding Valuation Adjustment, Derivative Liabilities
Total CVA—derivative instruments
Derivative Credit Risk Valuation Adjustment, Derivative Assets
Credit, Funding and Debt Valuation Adjustments Gain (Loss) [Abstract]
Credit, Funding and Debt Valuation Adjustments Gain (Loss) [Abstract]
Credit, Funding and Debt Valuation Adjustments Gain (Loss) [Abstract]
Counterparty CVA
Counterparty Derivative Credit Risk Valuation Adjustment, Gain (Loss)
Counterparty Derivative Credit Risk Valuation Adjustment, Gain (Loss)
Asset FVA
Derivative Funding Valuation Adjustment, Gain (Loss) on Derivative Asset
Derivative Funding Valuation Adjustment, Gain (Loss)
Own-credit CVA
Derivative Credit Risk Valuation Adjustment, Gain (Loss)
Derivative Credit Risk Valuation Adjustment, Gain (Loss)
Liability FVA
Derivative Funding Valuation Adjustment, Gain (Loss) on Derivative Liability
Derivative Funding Valuation Adjustment, Gain (Loss) on Derivative Liability
Total CVA—derivative instruments
Derivative Funding Valuation Adjustment, Gain (Loss), Net
Derivative Funding Valuation Adjustment, Gain (Loss), Net
DVA related to own FVO liabilities
Derivative Debt Valuation Adjustment, Gain (Loss) on Fair Value Option Liability
Derivative Debt Valuation Adjustment, Gain (Loss) on Fair Value Option Liability
Total CVA and DVA
Derivative Credit and Debt Valuation Adjustment, Gain (Loss)
Derivative Credit and Debt Valuation Adjustment, Gain (Loss)
Weighted average FICO score of the underlying collateral for Alt-A mortgage securities recorded at fair value, low end of range
Weighted Average F I C O Scores of Collateral Low End
The low end weighted average FICO scores of underlying collateral of Alt-A non-agency residential mortgage-backed securities.
Weighted average FICO score of the underlying collateral for Alt-A mortgage securities recorded at fair value, high end of range
Weighted Average F I C O Scores of Collateral High End
The high end weighted average FICO scores of underlying collateral of Alt-A non-agency residential mortgage-backed securities.
Maximum percentage of underlying collateral where FICO scores are greater than 720
Maximum Percentage of Underlying Collateral over RMBS with Full Documentation Loans If FICO Scores Greater than 720
Maximum percentage of underlying collateral over residential mortgage-backed securities with full documentation loans where FICO scores are greater than 720.
Senior interests
Mortgage Backed Securities with Senior Interests Issued by Private Enterprises [Member]
Represents debt securities with senior interest collateralized by real estate mortgage loans (mortgages), issued by non-governmental sponsored enterprises.
Subordinated interests
Mortgage Backed Securities with Subordinated Interests Issued by Private Enterprises [Member]
Represents debt securities with subordinated interest collateralized by real estate mortgage loans (mortgages), issued by non-governmental sponsored enterprises.
Low end of range
High end of range
Classification of Securitizations
Classification of Securitizations [Line Items]
Cash Flows Between Transferor and Transferee
Cash Flows Between Transferor and Transferee [Abstract]
Contractual servicing fees received
Cash Flows Between Transferor and Transferee, Servicing Fees
Cash flows received on retained interests and other net cash flows
Cash Flows Between Transferor and Transferee, Servicing Fee Advances
Gains recognized on the securitization
Gain (Loss) on Securitization of Financial Assets
Key assumptions used in measuring fair value of retained interests at date of sale or securitization of mortgage receivables
Assumptions for Fair Value on Securitization Date of Interests Continued to be Held by Transferor Servicing Assets or Liabilities [Abstract]
Discount rate
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities, Discount Rate
Weighted average discount rate
Assumption for Fair Value on Securitization Date of Interests Continued to be Held by Transferor Servicing Assets or Liabilities Weighted Average Discount Rate
The weighted average discount rate which is used to value residual cash flows generated by financial assets of the securitization, asset-backed financing arrangement, or similar transfer. This is used as a key assumption in measuring the fair value of assets or liabilities that relate to a transferor's assets obtained or liabilities incurred, if any, at the time of securitization, asset-backed financing, or similar transfer.
Constant prepayment rate
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities, Prepayment Speed
Weighted average constant prepayment rate
Assumption for Fair Value on Securitization Date of Interests Continued to be Held by Transferor Servicing Assets or Liabilities Weighted Average Prepayment Speed
The weighted average estimated speed of prepayments of principal on financial assets. This is used as a key assumption in measuring the fair value of assets obtained or liabilities incurred that relate to a transferor's continuing involvement, if any, at the time of securitization, asset-backed financing, or similar transfer.
Anticipated net credit losses
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities, Expected Credit Losses
Weighted average anticipated net credit losses
Assumption for Fair Value on Securitization Date of Interests Continued to be Held by Transferor Servicing Assets or Liabilities Weighted Average Anticipated Credit Losses
The weighted average rate at which principal will not be repaid on securitized financial assets, including expected static pool losses. This is used as a key input and assumption in measuring the fair value of assets obtained or liabilities incurred that relate to a transferor's continuing involvement, if any, at the time of securitization, asset-backed financing, or similar transfer.
Weighted average life
Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities, Weighted Average Life
Key assumptions used in measuring fair value related to transferor's continuing involvement
Assumptions for Fair Value of Interests Continued to be Held by Transferor Servicing Assets or Liabilities [Abstract]
Discount rate
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Discount Rate
Weighted average discount rate
Assumption for Fair Value of Interests Continued to be Held by Transferor Servicing Assets or Liabilities Weighted Average Discount Rate
The weighted average discount rate which is used to value residual cash flows generated by financial assets of a securitization, asset-backed financing arrangement, or similar transfer. This is used as a key input and assumption in measuring the fair value of assets or liabilities that relate to a transferor's continuing involvement, if any, as of the date of the latest statement of financial position presented.
Constant prepayment rate
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Prepayment Speed
Weighted average constant prepayment rate
Assumption for Fair Value of Interests Continued to be Held by Transferor Servicing Assets or Liabilities Weighted Average Prepayment Speed
Weighted average estimated speed of prepayments of principal on financial assets. This is used as a key input and assumption in measuring the fair value of assets or liabilities that relate to a transferor's continuing involvement, if any, as of the date of the latest statement of financial position presented.
Anticipated net credit losses
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Expected Credit Losses
Weighted average anticipated net credit losses
Assumption for Fair Value of Interests Continued to be Held by Transferor Servicing Assets or Liabilities Weighted Average Anticipated Credit Losses
The weighted average rate at which principal will not be repaid on securitized financial assets. This is used as a key input and assumption in measuring the fair value of assets or liabilities that relate to a transferor's continuing involvement, if any, as of the date of the latest statement of financial position presented.
Weighted average life
Assumption for Fair Value of Assets or Liabilities that relate to Transferor's Continuing Involvement, Weighted Average Life
Sensitivity analysis of fair value of interests continued to be held by transferor
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor [Abstract]
Carrying value of retained interests
Transferor's Interests in Transferred Financial Assets, Fair Value
Carrying value of retained interests, impact of 10% adverse change in discount rate
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Discount Rate
Carrying value of retained interests, impact of 20% adverse change in discount rate
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Discount Rate
Carrying value of retained interests, impact of 10% adverse change in constant prepayment rate
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Prepayment Speed
Carrying value of retained interests, impact of 20% adverse change in constant prepayment rate
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Prepayment Speed
Carrying value of retained interests, impact of 10% adverse change in anticipated net credit losses
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Expected Credit Losses
Carrying value of retained interests, impact of 20% adverse change in anticipated net credit losses
Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Expected Credit Losses
Federal funds sold and securities borrowed or purchased under agreements to resell, at fair value
Trading account assets, pledged to creditors
Trading Securities, Restricted
Available-for-sale securities, pledged to creditors
Available-for-sale Securities Pledged as Collateral
Held-to-maturity securities, pledged to creditors
Held-to-maturity Securities Pledged as Collateral
Non-marketable equity securities, pledged to creditors
Non-Marketable Equity Securities Pledged as Collateral
Non-Marketable Equity Securities Pledged as Collateral
Interest-bearing deposits in U.S. offices
Interest-bearing deposits in offices outside the U.S.
Short-term borrowings
Long-term debt
Other liabilities
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Preferred stock, authorized shares (in shares)
Preferred Stock, Shares Authorized
Preferred stock, issued shares, at aggregate liquidation value (in shares)
Preferred Stock, Shares Issued
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Common stock, authorized shares (in shares)
Common Stock, Shares Authorized
Common stock, issued shares (in shares)
Common Stock, Shares, Issued
Treasury stock (in shares)
Treasury Stock, Shares
Securitizations and Variable Interest Entities [Abstract]
Securitizations and Variable Interest Entities [Abstract]
Number of TOB trusts
Number of TOB Trusts
Number of TOB Trusts
Floater inventory held by entity
Floater Inventory Held by Entity
Represents the floater inventory related to the customer or proprietary TOB programs that is held by the entity.
Municipal bonds owned by trusts, that have credit guarantee provided by the Company
Municipal Bonds Owned by Trust with Credit Guarantee
This element represents the amount of municipal bonds owned by trusts that have a credit guarantee provided by the entity.
The threshold ownership percentage on Residual value of customers TOBs for which the reimbursement agreement applied
The Threshold Ownership Percentage on Residual Value by Customer TOB in which Reimbursement Agreement Applied
Represent the threshold of ownership percentage on Residual value of customers TOBs in which if the customers own less than the threshold will have to reimburse the entity for any payment made under the liquidity arrangement.
Liquidity agreements, customer TOB trust
Liquidity Agreements for Customer T O B Trust
This element represents the amount of liquidity agreements for customer TOB trusts.
Notional amount of offsetting reimbursement agreements
Notional Amount Reimbursement Agreements
The notional amount of reimbursement agreements in place, which offset liquidity agreements for customer TOB trusts.
Liquidity agreements, other trusts
Liquidity Agreements for Other Trusts
Represents the amount of liquidity arrangements for other non-consolidated proprietary trusts.
Cash Flow Hedging
Cash Flow Hedging [Member]
Pretax change in accumulated other comprehensive income (loss)
Summary of Derivative Instruments by Hedge Designation [Abstract]
Effective portion of cash flow hedges included in AOCI
Effective portion of cash flow hedges reclassified from AOCI to earnings
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net
Cash flow hedges expected to be reclassified within 12 months
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months
Maximum length of time hedged in cash flow hedge
Maximum Length of Time Hedged in Cash Flow Hedge
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
Comprehensive Income (Loss) Note [Text Block]
Schedule of Finite and Indefinite-Lived Intangible Assets by Major Class [Table]
Schedule of Finite and Indefinite-Lived Intangible Assets by Major Class [Table]
This element represents the disclosure of intangible assets excluding goodwill by major class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of the company.
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Purchased credit card relationships
Purchased Credit Card Relationships [Member]
This element represents the value of the entity's purchased credit card relationships.
Core deposit intangibles
Core Deposits [Member]
Other customer relationships
Other Customer Relationships [Member]
The intangible asset representing the value of the entity's customer relationships, not otherwise defined.
Present value of future profits
Present Value of Future Profits [Member]
The intangible asset representing the value of the entity's present value of future profits.
Other
Other Finite Lived Intangible Assets [Member]
This element represents other finite-lived intangible assets not otherwise defined in the taxonomy.
Indefinite-lived Intangible Assets [Axis]
Indefinite-lived Intangible Assets [Axis]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Indefinite-lived intangible assets
Indefinite-lived Intangible Assets [Member]
Finite and Indefinite-lived Intangible Assets [Line Items]
Finite and Indefinite-lived Intangible Assets [Line Items]
Finite and Indefinite-lived Intangible Assets [Roll Forward]
Finite and Indefinite-lived Intangible Assets [Roll Forward]
Net carrying amount of Intangible assets (excluding MSRs), beginning balance
Intangible Assets, Excluding Mortgage Servicing Rights
Sum of the carrying amounts of all intangible assets, excluding goodwill and excluding mortgage servicing rights, as of the balance sheet date, net of accumulated amortization and impairment charges.
Acquisitions/ divestitures
Intangible Assets, Excluding Mortgage Servicing Rights Acquisitions (Divestitures)
Intangible Assets, Excluding Mortgage Servicing Rights Acquisitions (Divestitures)
Amortization
Intangible Assets, Excluding Mortgage Servicing Rights Amortization of Intangible Assets
This element represents the aggregate amount of amortization of intangible assets excluding mortgage servicing rights (MSRs) during the period.
Impairments
Intangible Assets, Excluding Mortgage Servicing Rights Impairments
This element represents the aggregate amount of impairment of intangible assets excluding mortgage servicing rights (MSRs) during the period.
FX and other
Intangible Assets, Excluding Mortgage Servicing Rights Translation and Purchase Accounting Adjustments
This element represents net changes to the recorded value of intangible assets excluding mortgage servicing rights (MSRs), due to foreign currency translation adjustments and purchase accounting adjustments.
Net carrying amount of Intangible assets (excluding MSRs), ending balance
Mortgage servicing rights (MSRs)
Mortgage Servicing Rights M S R
The amount of mortgage servicing rights (MSRs) as of the balance sheet date.
Net carrying amount of Intangible assets, balance at end of period
Intangible Assets, Including Mortgage Servicing Rights
This element represents the sum of the carrying amounts of all intangible assets excluding goodwill but including mortgage servicing rights, as of the balance sheet date that is net of accumulated amortization and impairment charges.
Citibank Credit Card Master Trust (Master Trust)
Citibank Credit Card Master Trust [Member]
This element represents the Citibank Credit Card Master Trust, which is part of Citicorp.
Citibank OMNI Master Trust (Omni Trust)
Citibank O M N I Master Trust [Member]
This element represents the Citibank OMNI Master Trust, which is substantially part of Citicorp.
Funding, Liquidity Facilities and Subordinated Interests
Funding Liquidity Facilities and Subordinated Interests [Line Items]
Number of trusts to hold securitized credit card receivables
Securitization Trust, Number
Represents the number of securitization trusts established to hold in trust a specific type of securitized receivables.
Weighted average maturity of term notes
Weighted Average Maturity of Term Notes
This element represents the weighted average maturity of the term notes.
Term notes issued to third parties
Term Notes Issued to Third Parties
The par value of liabilities of the credit card receivables securitization trust related to term notes issued to third parties.
Term notes retained by Citigroup affiliates
Term Notes Retained by Affiliates
The par value of liabilities of the credit card receivables securitization trust related to term notes retained by affiliates of the entity.
Total Trust liabilities
Liabilities Held in Trust
The par value of liabilities of the credit card receivables securitization trust.
Schedule of Investments disclosures
Schedule of Investments [Line Items]
Schedule of Investments
Summary Investment Holdings [Table Text Block]
Interest and dividends on investments
Investment Income [Table Text Block]
Realized gains and losses on investments
Realized Gain (Loss) on Investments [Table Text Block]
Schedule of gain (loss) on HTM securities sold, securities reclassified to AFS and OTTI recorded on AFS securities reclassified
Schedule of Carrying Value and Realized Gain (Loss) on Sale of Held to Maturity Securities and Securities Reclassified to Available for Sale Securities [Table Text Block]
Tabular disclosure of carrying value and realized gain(loss) on the sale of HTM securities, as well as, securities reclassified to AFS investments.
Amortized cost and fair value of AFS
Available-for-sale Securities [Table Text Block]
Fair value of securities in unrealized loss position
Schedule of Unrealized Loss on Investments [Table Text Block]
Amortized cost and fair value of debt securities by contractual maturity dates
Investments Classified by Contractual Maturity Date [Table Text Block]
Carrying value and fair value of debt securities HTM
Held-to-maturity Securities [Table Text Block]
Total other-than-temporary impairments recognized
Other than Temporary Impairment Losses Investments [Table Text Block]
This item represents the disclosure of other-than-temporary impairment losses on investments.
Cumulative Other-Than-Temporary Impairment Credit Losses Recognized in Earnings
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block]
Investments in Alternative Investment Funds
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table Text Block]
Postemployment Plans
Postretirement Health Coverage [Member]
Postemployment Plans
Postemployment Benefits [Abstract]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Amortization of unrecognized
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements and Curtailments [Abstract]
Prior service cost (benefit)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)
Net actuarial loss
Total service related expense
Defined Benefit Plan Service Related Expense
Represents the service related expense for defined benefit plans for the period.
Non-service related expense (benefit)
Defined Benefit Plan Non Service Related Expense
Represents the non-service related expense for defined benefit plans for the period.
Total net (benefit) expense
Defined Benefit Plan, Net Periodic Benefit Cost
Defined Contribution Plans
Defined Contribution Pension and Other Postretirement Plans Disclosure [Abstract]
Maximum percentage contribution by employer of employees eligible pay
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay
Maximum compensation to be eligible for fixed contribution from employer
Defined Contribution Plan Eligible Employees for Fixed Employer Contribution Maximum Compensation
Represents the maximum compensations of employees to be eligible to receive the fixed contributions from employer.
Percentage of fixed contribution by employer, for eligible employees whose compensation is $100,000 or less
Defined Contribution Plan Fixed Percentage Employer Contribution for Eligible Employees
Represents the maximum percentage of fixed contribution for eligible employees whose compensation is 100,000 or less.
Pretax expense associated with Citigroup 401(k) plan
Defined Contribution Plan, Cost Recognized
COMMISSIONS AND FEES
Banking and Thrift Disclosure [Text Block]
Common dividends declared (in dollars per share)
Common Stock, Dividends, Per Share, Declared
INVESTMENTS
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
DEBT
Debt Disclosure [Text Block]
Segment Reporting [Abstract]
Information regarding the Company's operations by segment
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Percentage of the significant plans over global pension and postretirement liabilities, which utilize quarterly measurement policy
Defined Benefit Plan, Significant Plans, Percentage Captured Over Total Pension and Postretirement Liabilities Utilizing Quarterly Measurement
Represents percentage of The Significant Plans over the company's global pension and postretirement liabilities, which utilize a quarterly measurement policy.
Expected return on plan assets
Defined Benefit Plan, Expected Return on Plan Assets
Prior service (benefit) cost
Net actuarial loss
Defined Benefit Plan, Amortization of Gains (Losses)
Total net (benefit) expense
BASIS OF PRESENTATION AND ACCOUNTING CHANGES
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Other revenue
Other Income [Member]
Gain (loss) on fair value hedges
Effect of Fair Value Hedges on Results of Operations [Abstract]
Gain (loss) on the derivatives in designated and qualifying fair value hedges
Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments
Gain (loss) on the hedged item in designated and qualifying fair value hedges
Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge
Hedge ineffectiveness recognized in earnings on designated and qualifying fair value hedges
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net
Net gain (loss) excluded from assessment of the effectiveness of fair value hedges
Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net
Schedule of CVA and FVA applied to fair value of derivative instruments
Schedule of Credit Value Adjustments and Funding Valuation Adjustments to Fair Value Applied to Derivative Instruments [Table Text Block]
Schedule of Credit Value Adjustments and Funding Valuation Adjustments to Fair Value Applied to Derivative Instruments [Table Text Block]
Schedule of pretax gains (losses) related to changes in CVA, FVA and DVA
Schedule of Pretax Gains (Losses) Related to Changes in Credit Valuation Adjustments, Funding Valuation Adjustment, and Debt Valuation Adjustments [Table Text Block]
Schedule of Pretax Gains (Losses) Related to Changes in Credit Valuation Adjustments, Funding Valuation Adjustment, and Debt Valuation Adjustments [Table Text Block]
Items measured at fair value on a recurring basis
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Changes in level 3 fair value category
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Table Text Block]
This element represents, for the fair value measurement of assets and liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (net); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs).
Significant valuation techniques and most significant unobservable inputs used in Level 3 fair value measurements
Fair Value Assets and Liabilities Measured on Recurring and Non-recurring Basis Unobservable Input Reconciliation [Table Text Block]
Tabular disclosure of the fair value measurement of assets and liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets and liabilities) and gains or losses recognized in other comprehensive income, and a description of where those gains or losses included in earnings (or changes in net assets and liabilities) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset and liability.
Items measured at fair value of a nonrecurring basis
Fair Value Measurements, Nonrecurring [Table Text Block]
Valuation techniques and inputs for Level 3 nonrecurring fair value measurements
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]
Changes in total nonrecurring fair value measurements
Fair Value Assets Measured on Nonrecurring Basis Changes [Table Text Block]
Tabular disclosure of total nonrecurring fair value measurements for the period, included in earnings, attributable to the change in fair value relating to assets that are still held as of the reporting date.
Estimated Fair Value of Financial Instruments
Schedule of Fair Value of Financial Instruments [Table Text Block]
Tabular disclosure of the carrying value and fair value of financial instruments which are not carried at fair value.
Government and official institutions
Government and Official Institutions [Member]
Represents financing receivables from government and official institutions.
Net unearned income (loss)
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Consolidation Items [Axis]
Consolidation Items [Axis]
Consolidation Items [Domain]
Consolidation Items [Domain]
Operating Segments
Operating Segments [Member]
Total Citicorp and Corporate/Other
Citicorp Segment and Corporate and Other [Member]
This element represents the Citicorp business segment and corporate and other segment.
North America
EMEA
Europe Middle East Africa [Member]
This element represents the geographic segment of the entity consisting of Europe, the Middle East, and Africa (EMEA).
Latin America
Latin America [Member]
Asia
Asia [Member]
Segment reporting information
Segment Reporting Information [Line Items]
Regional business
Number of Regional Businesses
Number of regional businesses that comprise the reportable segment.
Number of countries where the entity provides a broad range of banking and financial products and services
Number of Countries Where Entity Provide Broad Range of Banking Services
Represents the number of countries where the entity provides a broad range of banking and financial products and services.
Number of markets
Number of Markets
Number of Markets
Revenues, net of interest expense
Income (loss) from continuing operations
Identifiable assets
Provisions for credit losses and for benefits and claims
Interest Rate Linked
Interest Rate Linked [Member]
Represents information pertaining to interest rate linked of certain structured liability.
Foreign Exchange Linked
Foreign Exchange Linked [Member]
Represents information pertaining to foreign exchange linked of certain structured liability.
Equity Linked
Equity Linked [Member]
Represents information pertaining to equity linked of certain structured liability.
Commodity Linked
Commodity Linked [Member]
Represents information pertaining to commodity linked of certain structured liability.
Credit Linked
Credit Linked [Member]
Represents information pertaining to credit linked of certain structured liability.
Carrying amount
Excluding Consolidated VIE's
Consolidated Entity Excluding Variable Interest Entities (VIE) [Member]
Carrying value of structured notes, disaggregated by type of embedded derivative instrument
Carrying value of structured notes
Certain Structured Liabilities
Represents the carrying value of certain structured liabilities.
Certain non-structured liabilities
Fair Value Inputs, Quantitative Information [Abstract]
Carrying amount reported on the Consolidated Balance Sheet
Aggregate unpaid principal balance in excess of (less than) fair value
Fair Value, Option, Aggregate Differences, Long-term Debt Instruments
Aggregate unpaid principal balance in excess of (less than) fair value
Fair Value Option Aggregate Differences Short Term Debt Instruments
This item represents the difference between the aggregate fair value and the aggregate unpaid principal balance of short-term debt instruments that have contractual principal amounts and for which the fair value option has been elected.
Document and Entity Information
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Document Type
Document Type
Document Period End Date
Document Period End Date
Amendment Flag
Amendment Flag
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Schedule of Financing Receivable, Allowance for Credit Losses [Table]
Schedule of Financing Receivable, Allowance for Credit Losses [Table]
Receivables Acquired with Deteriorated Credit Quality [Axis]
Receivables Acquired with Deteriorated Credit Quality [Axis]
Receivables Acquired with Deteriorated Credit Quality [Domain]
Receivables Acquired with Deteriorated Credit Quality [Domain]
Receivables Acquired with Deteriorated Credit Quality
Receivables Acquired with Deteriorated Credit Quality [Member]
Allowance for loan losses disclosures
Financing Receivable, Allowance for Credit Losses [Line Items]
Charge-offs
Recoveries
Replenishment of net charge-offs
Allowance for Loan and Lease Losses Replenishment of Net Charge Offs
Reflects the amount of replenishment of net charge-offs for credit losses.
Net specific reserve releases
Other
Allowance for loan losses:
Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract]
Determined in accordance with ASC 450-20
Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment
Determined in accordance with ASC 310-10-35
Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment
Determined in accordance with ASC 310-30
Financing Receivable, Allowance for Credit Losses
Loans, net of unearned income:
Loans collectively evaluated for impairment in accordance with ASC 450-20
Financing Receivable, Collectively Evaluated for Impairment
Loans individually evaluated for impairment in accordance with ASC 310-10-35
Financing Receivable, Individually Evaluated for Impairment
Loans held at fair value
Defined Benefit Plan, Estimated Future Employer Contributions [Abstract]
Defined Benefit Plan, Estimated Future Employer Contributions [Abstract]
Total Company contributions
Estimated total company contributions
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year
Gross carrying amount of Intangible assets (excluding MSRs)
Intangible Assets, Excluding Mortgage Servicing Rights Gross Carrying Amount
This element represents the gross carrying amounts of all intangible assets, excluding goodwill and mortgage servicing rights (MSRs), as of the balance sheet date.
Accumulated amortization of Intangible assets (excluding MSRs)
Intangible Assets, Excluding Mortgage Servicing Rights Accumulated Amortization
This element represents the accumulated amortization of all intangible assets, excluding goodwill and mortgage servicing rights (MSRs), as of the balance sheet date.
Net carrying amount of Intangible assets (excluding MSRs)
Gross carrying amount, Mortgage servicing rights (MSRs)
Mortgage Servicing Rights M S R Gross Carrying Amount
This element represents the gross carrying amount of mortgage servicing rights (MSRs) as of the balance sheet date.
Gross carrying amount of Intangible assets
Intangible Assets Including Mortgage Servicing Rights Gross Carrying Amount
This element represents the gross carrying amount of intangible assets excluding goodwill but including mortgage servicing rights (MSRs), as of the balance sheet date.
Accumulated amortization of Intangible assets
Intangible Assets, Including Mortgage Servicing Rights Accumulated Amortization
This element represents the accumulated amortization of all intangible assets excluding goodwill but including mortgage servicing rights (MSRs), as of the balance sheet date.
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Bank
Bank Entities [Member]
Represents the "Significant Citibank Entities" Citibank, N.A. units domiciled in the U.S., Western Europe, Hong Kong and Singapore as well as other Citibank and Banamex entities.
Broker-dealer
Broker Dealer Entities [Member]
Represents the broker-dealer subsidiaries that are consolidated into the entity.
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Senior debt
Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Collateralized long-term advances from Federal Home Loan Bank
Long-term Federal Home Loan Bank Advances
Carrying value of Principal-Protected Trust Securities
Trust Preferred Securities, Carrying Value
This element represents the carrying values of trust preferred securities.
PRINCIPAL TRANSACTIONS
Principal Transactions [Text Block]
Disclosure of revenue by reporting categories or types of financial instruments, including derivatives but excluding dividends and interests, from trading.
Reclassification out of Accumulated Other Comprehensive Income [Table]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
(Gain) loss reclassified from AOCI
Reclassification out of Accumulated Other Comprehensive Income [Member]
Realized gains (losses) on investment securities
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Cash flow hedges
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Pension liability adjustments
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Foreign currency translation adjustment
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Interest rate
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Realized (gains) losses on sales of investments
OTTI gross impairment losses
Other than Temporary Impairment Losses, Investments
Amortization of unrecognized prior service cost (benefit)
Other Comprehensive (Income) Loss, Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service Cost (Credit), before Tax
Amortization of unrecognized Net actuarial loss
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), before Tax
Income from continuing operations before income taxes
Tax effect
Income from continuing operations
Schedule of Trading Account Assets and Liabilities [Table]
Schedule of Trading Account Assets and Liabilities [Table]
This element represents the summarization of information regarding trading account assets and liabilities at fair value as on the reporting date.
Other trading assets
Derivatives, assets
Derivative Financial Instruments, Assets [Member]
Derivatives, liabilities
Derivative Financial Instruments, Liabilities [Member]
Trading account assets and Trading account liabilities
Schedule of Trading Account Assets and Liabilities [Line Items]
Leases
Loans sold and/or reclassified to held-for-sale
Number of days past due for reversal of accrued interest and charging to earnings
Number of Days for Reversal of Interest Accrued on Impaired Loans Charged to Earnings
Represents the number of days past due for reversal of accrued interest and to be charged to earnings.
Loans, equal to 30- 89 days past due and accruing
Financing Receivable, Recorded Investment 30 to 89 Days Past Due and Still Accruing
Recorded investment in financing receivables that are 30 to 89 days past due and still accruing.
Loans, greater than or equal to 90 days past due and accruing
Loans, total Past due and accruing
Financing Receivable, Recorded Investment, Past Due and Still Accruing
Financing receivables that are past due and still accruing.
Loans, total current
Purchased distressed loans
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Carrying Amount, Net
BUSINESS SEGMENTS
Segment Reporting Disclosure [Text Block]
Components of net (benefit) expense
Schedule of Net Benefit Costs [Table Text Block]
Summary of the funded status and amounts recognized in the Consolidated Balance Sheet for the Company's U.S. qualified, non-qualified plans and plans outside the U.S.
Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]
Change in Accumulated other comprehensive income (loss)
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
Assumptions used in determining benefit obligations and net benefit expense
Schedule of Assumptions Used [Table Text Block]
Effect of one-percentage-point change in the discount rates on pension expense
Schedule of Effect of One Percentage Point Change in Discount Rates on Pension Expense [Table Text Block]
Disclosure of the effect of a one-percentage-point increase and the effect of a one-percentage-point decrease in the discount rate on the pension expenses.
Summary of entity's contributions
Schedule of Actual and Expected Employer Contributions [Table Text Block]
Tabular disclosure of actual and estimated expected employer contributions for pension plans and/or other employee benefit plans.
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Net unrealized gains (losses) on investment securities
Benefit plans
Accumulated other comprehensive income (loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Change in accumulated other comprehensive income (loss)
Increase (Decrease) in Accumulated Other Comprehensive Loss (Income) Net of Tax [Roll Forward]
Beginning-of-period balance, net of tax
Other comprehensive income before reclassifications
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Increase (decrease) due to amounts reclassified from AOCI
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Change, net of taxes
End-of-period balance, net of tax
Reclassification for allocation between net unrealized gains (losses) on investment securities to CTA, before tax
Reclassification Within Accumulated Other Comprehensive Income, Current Period, Before Tax
Reclassification Within Accumulated Other Comprehensive Income, Current Period, Before Tax
Reclassification for allocation between net unrealized gains (losses) on investment securities to CTA, net of tax
Reclassification Within Accumulated Other Comprehensive Income, Current Period, Net of Tax
Reclassification Within Accumulated Other Comprehensive Income, Current Period, Net of Tax
Securitized credit card receivables
Securitized Credit Card Receivables [Line Items]
Gains (losses) recognized on the securitization
Ownership interests in principal amount of trust credit card receivables
Ownership Interests in Principal Amount of Trust Credit Card Receivables [Abstract]
Sold to investors via trust-issued securities
Portion of Principal Amount Outstanding of Securitized Assets and Any Other Financial Assets Managed Together Sold to Investors Via Trust Credit Card Receivables
This element represents the ownership interests in principal amount of trust credit card receivables sold to investors via trust-issued securities.
Retained by Citigroup as trust-issued securities
Portion of Securitized Assets and Any Other Financial Assets Managed Together Retained by Trust Issued Securities
This element represents the ownership interests in principal amount of trust credit card receivables retained by the reporting entity as trust-issued securities.
Retained by Citigroup via non-certificated interests
Portion of Securitized Assets and Any Other Financial Assets Managed Together Retained by Reporting Entity Via Non Certificated Interests
This element represents the ownership interests in principal amount of trust credit card receivables retained by the reporting entity via non-certificated interests.
Total ownership interests in principal amount of trust credit card receivables
Securitized Credit Card Receivables Principal Amount Outstanding
This element represents the principal amount of credit card receivables held in trusts.
Pay down of maturing notes
Payment of Maturing Notes Securitizations
The payment of maturing notes related to securitizations.
Certain loans and other credit product
Certain Loans and Other Credit Products [Member]
Represents certain loan and other credit products of the entity for certain originated and purchased loans, including certain unfunded loan products such as guarantees and letters of credit.
Certain debt host contracts across unallocated precious metals accounts
Separated Host Financial Instrument, Fair Value Option [Member]
Certain Investments in Unallocated Precious Metals
Certain Investments in Unallocated Precious Metals [Member]
Represents the investment in unallocated precious metals (gold, silver, platinum and palladium).
Mortgage loans
Mortgage Receivable [Member]
Corporate loans
Trading assets
Forward derivative contract
Forward Contracts [Member]
Fair Value Option Quantitative Disclosures
Fair Value, Option, Quantitative Disclosures [Line Items]
Gain (loss) on change in estimated fair value of debt liabilities due to change in company's own credit risk
Fair Value, Option, Credit Risk, Gains (Losses) on Liabilities
Carrying amount reported on the Consolidated Balance Sheet
Aggregate unpaid principal balance in excess of (less than) fair value
Fair Value, Option, Aggregate Differences, Loans and Long-term Receivables
Balance of non-accrual loans or loans more than 90 days past due
Fair Value Option Loans Held as Assets Nonaccrual Status or 90 Days or More Past Due
This item represents the aggregate fair value of loans held as assets for which the fair value option has been elected that are in nonaccrual status, if the entity's policy is to recognize interest income separately from other changes in fair value, or that are 90 days or more past due.
Aggregate unpaid principal balance in excess of fair value for non-accrual loans or loans more than 90 days past due
Fair Value Option Loans held as Assets Aggregate Amount in Nonaccrual Status or 90 Days or More Past Due
This item represents the aggregate fair value of loans held as assets for which the fair value option has been elected that are in nonaccrual status, if the entity's policy is to recognize interest income separately from other changes in fair value, or that are 90 days or more past due.
Changes in fair value due to instrument-specific credit risk gain (loss)
Fair Value, Option, Credit Risk, Gains (Losses) on Assets
Principal transactions revenue
Schedule of Principal Transactions Revenue [Table Text Block]
FAIR VALUE ELECTIONS
Fair Value, Option [Text Block]
Unconsolidated variable interest entity
Liquidity facilities Citigroup
Liquidity Facilities [Member]
This element represents the notional amount of funding commitments for liquidity facilities of VIEs.
Loan commitments Citigroup
Loan Commitments [Member]
This element represents the notional amount of funding commitments for loan commitments of VIEs.
Funding Commitments for Significant Unconsolidated VIEs
Variable Interest Entity Funding Commitments [Line Items]
Notional amount
Schedule of Servicing Assets at Fair Value [Table]
Schedule of Servicing Assets at Fair Value [Table]
Mortgage servicing rights
Mortgage Service Rights [Member]
This element represents mortgage servicing rights (MSR).
Fair value of capitalized mortgage servicing rights
Fair Value of Capitalized Mortgage Servicing Rights
Represents the fair value of capitalized mortgage servicing rights.
Principal amount of loans and other financial instruments
Continuing Involvement with Continued to be Recognized Transferred Financial Assets, Amount Outstanding
Capitalized MSRs
Servicing Asset at Fair Value, Amount [Roll Forward]
Balance at beginning of period
Originations
Servicing Asset at Fair Value, Additions
Changes in fair value of MSRs due to changes in inputs and assumptions
Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions
Other changes
Servicing Asset at Fair Value, Other Changes that Affect Balance
Sale of MSRs
Servicing Asset at Fair Value, Disposals
Balance at end of period
MSR fees
Disclosures Pertaining to Servicing Assets and Servicing Liabilities [Abstract]
Servicing fees
Contractually Specified Servicing Fees, Amount
Late fees
Late Fee Income Generated by Servicing Financial Assets, Amount
Ancillary fees
Ancillary Fee Income Generated by Servicing Financial Assets, Amount
Total MSR fees
Fees and Commissions, Mortgage Banking and Servicing
Re-securitizations
Re-securitizations [Abstract]
Re-securitizations [Abstract]
Original par value of securities transferred to re-securitization entities
Original Par Value of Securities Transferred to Re-securitization Entities
Represents the amount of original par value of securities transferred to re-securitization entities.
Fair value of re-securitizations deals in which the entity holds a retained interest
Fair Value of Re-securitizations Deals in which Entity Holds Retained Interest
Represents the fair value of re-securitizations deals in which entity holds retained interest.
Market value of retained interest related to re-securitization transaction
Market Value of Interest in Private Label Re Securitization Entities Related to Current Period
This element represents the amount of market value of interest owned by the entity in private-label re-securitization entities, for current period.
Original par value of re-securitizations deals in which the entity holds a retained interest
Original Par Value of Re Securitizations Deals in which Entity Holds Retained Interest
Represents the amount of original par value of re-securitizations deals in which the entity holds a retained interest.
Securities transferred to re-securitization entities
Securities Transferred to Re Securitization Entities
Represents the amount of securities transferred to re-securitization entities.
Original fair value of re-securitizations deals in which the entity holds a retained interest
Original Fair Value of Re Securitizations Deals in which Entity Holds Retained Interest
Represents the amount of original fair value of re-securitizations deals in which the entity holds a retained interest.
Reconciliation of the income and share data used in the basic and diluted earnings per share computations
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
INTEREST REVENUE AND EXPENSE
Interest Income and Interest Expense Disclosure [Text Block]
Change in accumulated other comprehensive income (loss), pretax
Increase (Decrease) in Accumulated Other Comprehensive (Loss) Income Before Tax [Roll Forward]
Balance at the beginning of the period, pretax
AOCI Including Portion Attributable to Noncontrolling Interest, before Tax
Change in net unrealized gains (losses) on investment securities, pretax
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax, Portion Attributable to Parent
Cash flow hedges, pretax
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax, Portion Attributable to Parent
Benefit plans, pretax
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax, Portion Attributable to Parent
Foreign currency translation adjustment, pretax
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax, Portion Attributable to Parent
Change, pretax
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent
Balance at the end of the period, pretax
Change in accumulated other comprehensive income (loss), tax effect
Increase (Decrease) in Accumulated Other Comprehensive (Loss) Income Tax Portion [Roll Forward]
Balance at the beginning of the period, tax effect
Accumulated Other Comprehensive Income (Loss) Tax Portion
Accumulated change in equity from transactions and other events and circumstances from non-owner sources, tax effect, at period end, which excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners, and includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that the entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.
Change in net unrealized gains (losses) on investment securities, tax effect
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax, Portion Attributable to Parent
Cash flow hedges, tax effect
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax, Portion Attributable to Parent
Benefit plans
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax, Portion Attributable to Parent
Foreign currency translation adjustment, tax effect
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax, Portion Attributable to Parent
Change, tax effect
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent
Balance at the end of the period, tax effect
Change in accumulated other comprehensive income (loss), after-tax
Change in net unrealized gains (losses) on investment securities, after-tax
Cash flow hedges, after-tax
Change, net of tax
Foreign currency translation adjustment, after-tax
End-of-period balance, net of tax
Gains (losses) recognized in Other revenue related to derivatives not designated in a qualifying hedging relationship
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net
Trading account assets and liabilities
Trading Account Assets Liabilities [Table Text Block]
Schedule of trading account assets and liabilities, at fair value as of the reporting date.
Recurring
Fair Value, Measurements, Recurring [Member]
Non-trading derivatives and other financial assets
Trading securities (excluding trading account derivatives)
Trading derivatives liabilities
Non-trading derivatives and other financial liabilities
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Assets, Fair Value Disclosure [Abstract]
Assets, Fair Value Disclosure [Abstract]
Federal funds sold and securities borrowed or purchased under agreements to resell
Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell Gross
The amount shown on an entity's books for federal funds sold and securities borrowed or purchased under agreements to resell, before effects of master netting arrangements.
Federal funds sold and securities borrowed or purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell, Netting
Federal funds sold and securities borrowed or purchased under agreements to resell, selected portfolios of securities purchased under agreements to resell
Trading derivatives, asset, Gross
Gross cash collateral paid
Trading derivative, asset, gross net cash collateral paid
Derivative Fair Value of Derivative Asset and Derivative Collateral Right to Reclaim Cash, Net
Represents the aggregate of the fair value of derivative asset, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position, and the amount of the right to reclaim cash collateral net of the amount offset against net derivative instrument positions under master netting arrangements.
Less: Netting agreements to assets
Netting, Assets, total of netting agreements and cash collateral received
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset
Trading derivatives
Other assets, gross
Other Assets before Effects of Master Netting Arrangements
This element represents the fair value of assets categorized as other which are not in and of themselves material enough to require separate disclosure, presented on a gross basis even when derivatives and other financial assets are subject to master netting arrangements and qualify for net presentation in the statement of financial position.
Total other assets and cash collateral, gross
Other Assets before Effects of Master Netting Arrangements and Derivative Collateral Right to Reclaim Cash, Net
Represents the aggregate of assets categorized as other which are not in and of themselves material enough to require separate disclosure, presented on a gross basis even derivatives and other financial instruments are subject to master netting arrangements and qualify for net presentation in the statement of financial position, and the amount of the right to reclaim cash collateral net of the amount offset against net derivative instrument positions under master netting arrangements.
Other assets
Assets before netting
Assets before Effects of Master Netting Arrangements
This element represents the aggregate of the assets reported on the balance sheet at period end, presented on a gross basis even when derivatives and other financial assets are subject to master netting arrangements and qualify for net presentation in the statement of financial position.
Total assets, Netting
Assets Derivative Asset Fair Value Gross Liability Obligation to Return Cash Offset and Securities Purchased under Agreements to Resell Liability
Represents the aggregate of fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset; obligation to return cash collateral under master netting arrangements; and amount of liability associated with funds outstanding loaned in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price.
Total as a percentage of gross assets
Percentage of Assets to Gross Assets
This element represents the percentage of total assets to gross assets.
Liabilities, Fair Value Disclosure [Abstract]
Liabilities, Fair Value Disclosure [Abstract]
Interest-bearing deposits
Interest-bearing Deposit Liabilities
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase, Gross
Federal Funds Purchased and Securities Loaned or Sold under Agreements to Repurchase Gross
This item represents the amount that a bank with insufficient reserves at a Federal Reserve Bank borrows, at the federal funds rate, from another bank to meet its reserve requirements for that day and the amount of securities that an institution sells and agrees to repurchase at a specified date for a specified price, before effects of master netting arrangements.
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase, Netting
Federal funds purchased and securities loaned or sold under agreements to repurchase, selected portfolios of securities sold under agreements to repurchase
Securities sold, not yet purchased
Financial Instruments Sold, Not yet Purchased, at Fair Value
Cash collateral received
Total trading derivatives and cash collateral, liability
Derivative Fair Value of Derivative Liability and Derivative Collateral Right to Reclaim Cash Net
Represents the aggregate of the fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position, and the amount of the obligation to return cash collateral net of the amount offset against net derivative instrument positions under master netting arrangements.
Netting agreements
Netting, Liabilities, total of netting agreements and cash collateral received
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset
Short-term borrowings
Short-term Debt, Fair Value
Long-term debt, at fair value
Other liabilities, gross
Other Liabilities before Effects of Master Netting Arrangements
This element represents the aggregate of liabilities categorized as other which are not in and of themselves material enough to require separate disclosure, presented on a gross basis even when derivatives and other financial liabilities are subject to master netting arrangements and qualify for net presentation in the statement of financial position.
Non-trading derivatives and other financial liabilities measured on a recurring basis, gross
Total other assets and cash collateral, gross
Other Liabilities before Effects of Master Netting Arrangements and Derivative Collateral Obligation to Return Cash Net
Represents the aggregate of the fair value of assets categorized as other which are not in and of themselves material enough to require separate disclosure, presented on a gross basis even derivatives and other financial instruments are subject to master netting arrangements and qualify for net presentation in the statement of financial position, and the amount of the obligation to return cash collateral net of the amount offset against net derivative instrument positions under master netting arrangements.
Total liabilities, Gross
Liabilities before Effects of Master Netting Arrangements
This element represents the aggregate of the liabilities reported on the balance sheet at period end, presented on a gross basis even when derivatives and other financial liabilities are subject to master netting arrangements and qualify for net presentation in the statement of financial position.
Total liabilities, Netting
Liabilities Derivative Liability Fair Value Gross Asset Right to Reclaim Cash Offset and Securities Sold under Agreements to Repurchase Asset
Represents the aggregate of fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset; right to receive cash collateral under master netting arrangements; and amount of asset associated with funds outstanding borrowed in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price.
Total liabilities
Total as a percentage of gross liabilities
Percentage of Liabilities to Gross Liabilities
This element represents the percentage of total liabilities to gross liabilities.
Assets transferred from Level 1 to Level 2
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount
Assets transferred from Level 2 to Level 1
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount
Liabilities transferred from Level 1 to Level 2
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount
Liabilities transferred from Level 2 to Level 1
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount
FAIR VALUE MEASUREMENT
Fair Value Disclosures [Text Block]
Available for Sale Securities Continuous Unrealized Loss Position
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Fair value of available for sale securities that have been in an unrealized loss position for less than twelve months
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for less than twelve months
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Fair value of available for sale securities that have been in an unrealized loss position for twelve months or longer
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value
Gross unrealized losses of available for sale securities that have been in an unrealized loss position for twelve months or longer
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Total fair value of available for sale securities that have been in an unrealized loss position
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value
Total gross unrealized losses of available for sale securities that have been in an unrealized loss position
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss
Interest revenue and expense
Schedule of Interest Revenues and Expenses [Table Text Block]
Disclosure of the components of interest revenue and interest expense for the reporting period.
Change in accumulated other comprehensive income (loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Beginning-of-period balance, net of tax
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax
Actuarial assumptions changes and plan experience
Other Comprehensive Income (Loss) Pension and Other Postretirement Benefit Plans Adjustment for Actuarial Assumption Changes and Plan Experience Before Tax
Amount before tax of adjustment to accumulated other comprehensive income (loss) for actuarial assumption changes and plan experience, related to pension and other postretirement benefit plans.
Net asset gain (loss) due to difference between actual and expected returns
Other Comprehensive Income (Loss) Pension and Other Postretirement Benefit Plans Adjustment for Actual Plan Asset Returns Exceeding Expected Returns Before Tax
Amount before tax of adjustment to accumulated other comprehensive (income) loss for net asset gain due to actual returns exceeding expected returns, related to pension and other postretirement benefit plans.
Net amortizations
Other Comprehensive Income (Loss) Amortization Adjustment from AOCI Pension and Other Postretirement Benefit Plans Before Tax
Amount before tax of net amortization adjustments from accumulated other comprehensive (income) loss related to pension and other postretirement benefit plans.
Prior service credit
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Arising During Period, before Tax
Curtailment/settlement loss
Other Comprehensive Income (Loss), Finalization of Pension and Other Postretirement Benefit Plan Valuation, Net of Tax
Foreign exchange impact and other
Other Comprehensive Income Loss Pension and Other Postretirement Benefit Plans Foreign Exchange Impact and Other Adjustments before, Tax
Amount before tax of (increase) decrease in accumulated other comprehensive (income) loss for foreign exchange impact and other adjustments not separately identified, related to pension and other postretirement defined benefit plans.
Change in deferred taxes, net
End-of-period balance, net of tax
SECURITIZATIONS AND VARIABLE INTEREST ENTITIES
Securitizations and Variable Interest Entities [Text Block]
Disclosure related to the entity's use of special purpose entities, its variable interest entities and securitizations.
Changes in each component of Accumulated Other Comprehensive Income (Loss)
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule of pretax and after-tax changes in each component of Accumulated other comprehensive income (loss)
Schedule of Before and after Tax Changes in Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Tabular disclosure of the pre-tax and after-tax changes in each component of accumulated other comprehensive income (loss).
Summary of amounts reclassified out of Accumulated other comprehensive income (loss) into the Consolidated Statement of income
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]
Federal funds sold
Federal Funds Sold
Securities purchased under agreements to resell
Deposits paid for securities borrowed
Total
Federal funds purchased
Federal Funds Purchased
Securities sold under agreements to repurchase
Deposits received for securities loaned
Total
Changes in Goodwill
Schedule of Changes in Goodwill [Table Text Block]
Tabular disclosure changes of goodwill in details and total. Disclosure details may include, but are not limited to, the carrying amount of goodwill, goodwill acquired during the year, goodwill impairment losses recognized, goodwill written-off due to the sale of a business unit, goodwill not yet allocated, and any other changes to goodwill.
Changes in Goodwill by segment
Schedule of Goodwill [Table Text Block]
Components of intangible assets
Schedule of Finite Lived and Indefinite Lived Intangible Assets, [Table Text Block]
Tabular disclosure of assets, excluding financial assets and goodwill, lacking physical substance with a finite life or exist in perpetuity, by either major class or business segment.
Changes in intangible assets
Schedule of Changes in Intangible Assets [Table Text Block]
Schedule of changes in intangible assets.
Private Banking loans managed on a delinquency basis
Private Banking Loans Managed on Delinquency Basis [Member]
Represents financing receivables classified as Private Banking loans managed on a delinquency basis.
Summarized financial information disposal groups including discontinued operations
Disposal Groups, Including Discontinued Operations [Table Text Block]
Goodwill
Goodwill [Roll Forward]
Balance of goodwill at beginning of period
Foreign exchange translation and other
Goodwill, Translation Adjustments
Impairment of goodwill
Divestitures, purchase accounting adjustments and other
Goodwill Acquisitions Divestitures Purchase Accounting Adjustments and Other
This element represents the net changes to the recorded value of goodwill due to acquisitions or divestitures, purchase accounting adjustments and other adjustments needed to revise the carrying amount of goodwill.
Balance of goodwill at end of period
Schedule of Impaired Financing Receivable [Table]
Schedule of Impaired Financing Receivable [Table]
Financing receivable impaired
Financing Receivable, Impaired [Line Items]
Number of months in sustained period of repayment performance for cash-basis loans to return to an accrual status
Cash Basis Loan to Return to Accrual Status, Number of Months in Sustained Period of Repayment Performance
Represents number of months in sustained period of repayment performance for cash-basis loans to return to an accrual status.
Recorded investment
Impaired Financing Receivable, Recorded Investment
Unpaid principal balance
Impaired Financing Receivable, Unpaid Principal Balance
Related specific allowance
Impaired Financing Receivable, Related Allowance
Average carrying value
Impaired Financing Receivable, Average Recorded Investment
Interest Income Recognized
Impaired Financing Receivable, Interest Income, Accrual Method
Impaired financing receivable with specific allowance
Impaired Financing Receivable, with Related Allowance, Recorded Investment
Impaired financing receivable without specific allowance
Impaired Financing Receivable, with No Related Allowance, Recorded Investment
Individual installment and other
Individual Installment and Other [Member]
Represents financing receivables classified as installment and other loans from individuals.
Interest income recognized
Number of quarters used to calculate the average recorded investment balance
Impaired Financing Receivable Average Recorded Investment Historical Quarters Number
This represents the number of quarters of historical data used to calculate the average recorded investment ending balance.
GOODWILL AND INTANGIBLE ASSETS
Goodwill and Intangible Assets Disclosure [Text Block]
EARNINGS PER SHARE
Earnings Per Share [Text Block]
Income from Fees and Commission [Table]
Income from Fees and Commission [Table]
Encapsulates the table having details of income from fees and commissions.
Products and Services [Axis]
Products and Services [Axis]
Products and Services [Domain]
Products and Services [Domain]
Investment banking
Investment Banking [Member]
Represents investment banking services. Fees and commissions from these services earned from advisory and equity and debt underwriting services.
Trading-related
Trading Related [Member]
Represents trading related services. Fees and commissions from these services primarily include commissions and fees from the following: executing transactions for client on exchanges and over-the-counter markets; sale of mutual funds, insurance and other annuity products; and assisting clients in clearing transactions, providing brokerage services and other such activities. Trading-related fees are recognized when earned in Commissions and fees. Gain or losses, if any, on these transactions are included in Principal transactions.
Credit cards and bank cards
Credit Card and Bank Card [Member]
Represents credit card and bank card services. Fees and commissions from these services are primarily composed of interchange revenue and certain card fees, including annual fees, reduced by reward program costs. Interchange revenue and fees are recognized when earned, except for annual card fees which are deferred and amortized on a straight-line basis over a 12-month period. Reward costs are recognized when points are earned by the customers.
Trade and securities services
Transaction Services [Member]
This element represents the Transaction Services reporting unit of the entity.
Other consumer
Other Consumer [Member]
Represents other consumer services. Fees and commissions earned from consumer services which consists primarily of fees for investment fund administration and management, third-party collections, commercial demand deposit accounts and certain credit card services.
Corporate finance
Corporate Finance [Member]
Represents corporate finance services. Fees and commissions earned on corporate finance activity which consists primarily of fees earned from structuring and underwriting loan syndications.
Checking-related
Checking Related [Member]
Represents checking related services. Fees and commissions earned from these services due to checking related activity.
Loan servicing
Loan Servicing [Member]
Represents loan servicing services.
Other
Other Services [Member]
Represents other services from which fees and commissions earned by the entity, not otherwise defined in the taxonomy.
Commissions and fees
Fees and Commissions [Line Items]
Card fees amortization period
Deferred Costs, Credit Card Origination Costs, Amortization Period
Deferred Costs, Credit Card Origination Costs, Amortization Period
Total commissions and fees
Schedule of Stock by Class [Table]
Schedule of Stock by Class [Table]
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Subsequent Event
Subsequent Event [Member]
Class of Stock [Axis]
Class of Stock [Axis]
Class of Stock [Domain]
Class of Stock [Domain]
Series AA
Series AA Preferred Stock [Member]
Outstanding nonredeemable series AA preferred stock or outstanding series AA preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer.
Series E
Series E Preferred Stock [Member]
Series A
Series A Preferred Stock [Member]
Series B
Series B Preferred Stock [Member]
Series C
Series C Preferred Stock [Member]
Series D
Series D Preferred Stock [Member]
Series J
Series J Preferred Stock [Member]
Represents the outstanding nonredeemable series J preferred stock or outstanding series J preferred stock. Classified within stockholders' equity, if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity, if redemption is outside the control of the issuer.
Series K
Series K Preferred Stock [Member]
Represents the outstanding nonredeemable series K preferred stock or outstanding series K preferred stock. Classified within stockholders' equity, if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity, if redemption is outside the control of the issuer.
Series L
Series L Preferred Stock [Member]
Outstanding nonredeemable series L preferred stock or outstanding series L preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer.
Series M
Series M Preferred Stock [Member]
Series M Preferred Stock [Member]
Series N
Series N Preferred Stock [Member]
Series N Preferred Stock [Member]
Series O
Series O Preferred Stock [Member]
Series O Preferred Stock [Member]
Series P
Series P Preferred Stock [Member]
Series P Preferred Stock [Member]
Scenario [Axis]
Scenario [Axis]
Scenario, Unspecified [Domain]
Scenario, Unspecified [Domain]
Forecast
Scenario, Forecast [Member]
Preferred stock
Class of Stock [Line Items]
Dividend rate (as a percent)
Preferred Stock, Dividend Rate, Percentage
Redemption price per depositary share/ preference share (in dollars per share)
Preferred Stock, Redemption Price Per Share
Number of depositary shares (in shares)
Depositary Shares, Issued
Represents the total number fractional shares of preferred stock issued to the holders.
Carrying value
Depositary shares, interest in corresponding series of preferred stock
Depositary Shares, Interest in Corresponding Series of Preferred Stock
Represents the depositary shares interest in shares of preferred stock.
Distribution of preferred dividends
Payments of Ordinary Dividends, Preferred Stock and Preference Stock