| Administration and Other Fiduciary Fees |
Administration and other fiduiary fees. |
4 |
c:AdministrationAndOtherFiduciaryFeesRevenue |
| Basis Of Presentation [Text Block] |
Description containing the entire organization, consolidation and basis of presentation of financial statements disclosure, all significant accounting policies of the reporting entity, and any changes in an accounting principle, including a change from one generally accepted accounting principle to another generally accepted accounting principle when there are two or more generally accepted accounting principles that apply or when the accounting principle formerly used is no longer generally accepted. |
1 |
c:BasisOfPresentationTextBlock |
| Change in Cash and Due from Banks |
The net change between the beginning and ending balance of cash and due from banks. A positive value indicates a net increase in the ending balance. |
2 |
c:CashAndDueFromBanksPeriodIncreaseDecrease |
| Citibank N.A. [Axis] |
|
0 |
c:SubsidiaryEntityAxis |
| Citigroup common stockholders equity |
|
0 |
c:CommonShareholdersEquityMember |
| Citigroup stockholders' equity |
|
0 |
c:CitigroupStockholdersEquityMember |
| Commissions and Fees [Text Block] |
Commissions and Fees [Text Block] |
1 |
c:CommissionsAndFeesTextBlock |
| Common Stock Issued During Period, Value |
Value of common stock issued during the period. |
2 |
c:CommonStockIssuedDuringPeriodValue |
| Discontinued Operation Gain (Loss) on Disposal of Discontinued Operation, Net of Tax, Cash Flow Impact |
This element represents gain (loss) on sale of discontinued operations affecting cash flows during the period. |
2 |
c:DiscountinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTaxCashFlowImpact |
| Document and Entity Information |
|
0 |
c:DocumentAndEntityInformationAbstract |
| Fair Value Loss, Excluding Credit Loss on Debt Securities |
losses recognized for other than temporary impairments of the subject investments in debt and equity securities, excluding the credit loss component of the impairment recognized in earnings, while the rest of the fair value loss is recognized in OCI |
0 |
c:FairValueLossExcludingCreditLossOnDebtSecurities |
| Federal Funds Purchased and Securities Loaned or Sold Under Agreements to Repurchase, Fair Value Disclosure |
The Fair Value disclosure of the amount shown on the books that a bank with insufficient reserves borrows, at the federal funds rate, from another bank to meet its reserve requirements and the amount of securities that an institution sells and agrees to repurchase at a specified date for a specified price, net of any reductions or offsets. |
2 |
c:FederalFundsPurchasedAndSecuritiesLoanedOrSoldUnderAgreementToRepurchaseFairValue |
| Impairment Loss on Marketable Securities, Gross |
Impairment Loss on Marketable Securities, Gross |
0 |
c:ImpairmentLossOnMarketableSecuritiesGross |
| Increase (Decrease) From Transactions Between Consolidating Entity And The Noncontrolling Interest Shareholders |
Decrease in Noncontrolling Interest on Transaction With Noncontrolling Interest Holders |
4 |
c:IncreaseDecreaseFromTransactionsBetweenConsolidatingEntityAndTheNoncontrollingInterestShareholders |
| Increase (Decrease) From Transactions Between Noncontrolling Interest Shareholders And The Related Consolidating Subsidiary |
Decrease in Noncontrolling Interest on Transaction With Consolidating Subsidiary |
4 |
c:IncreaseDecreaseFromTransactionsBetweenNoncontrollingInterestShareholdersAndTheRelatedConsolidatingSubsidiary |
| Increase (Decrease) in Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell |
Change in Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell. |
2 |
c:IncreaseDecreaseInFederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResell |
| 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. |
2 |
c:IntangibleAssetsExcludingMortgageServicingRights |
| Interest And Fees Receivable |
|
2 |
c:InterestAndFeesReceivable |
| Interest-bearing Deposit Liabilities, Domestic, Fair Value Disclosure |
The Fair Value disclosure of the total amount of interest-bearing domestic deposit liabilities, which may include brokered, retail, demand, checking, notice of withdrawal, money market and other interest-bearing deposits. |
2 |
c:InterestBearingDepositLiabilitiesDomesticFairValue |
| Interest-bearing Deposit Liabilities, Foreign, Fair Value Disclosure |
The Fair Value disclosure of the amount of foreign interest-bearing deposits held by the entity. |
2 |
c:InterestBearingDepositLiabilitiesForeignFairValue |
| Investments Pledged To Creditors |
Investments pledged to creditors as of the balance sheet date. |
4 |
c:InvestmentsPledgedToCreditors |
| Issuance of TARP Warrants |
Issuance of Warrants under Troubled Assets Relief Program |
1 |
c:IssuanceOfTARPWarrants |
| Loans Receivable Commercial, Fair Value Disclosure |
Commercial loans receivable, at fair value, as of balance sheet date. |
2 |
c:LoansReceivableCommercialFairValueDisclosure |
| Loans Receivable Consumer, Fair Value Disclosure |
Consumer loans receivables, at fair value, as of balance sheet date. |
2 |
c:LoansReceivableConsumerFairValueDisclosure |
| Loans Receivable, Net Of Unearned Income, Consumer |
Reflects the sum of the carrying amounts of the various categories of loans made to individuals for personal needs, including mortgage, home equity, vehicles, credit card, installment, and lease financing, net of unearned income. |
2 |
c:LoansReceivableNetOfUnearnedIncomeConsumer |
| Loans Receivable, Net of Unearned Income, Corporate |
Reflects the sum of the carrying amounts of the various categories of unpaid commercial loans and leases receivable, primarily issued to businesses. Includes: (1) commercial and industrial loans, consisting of general purpose loans to entities involved in producing, transporting, or merchandising products sold in the course of commerce; (2) agricultural loans consisting of borrowings used to finance major equipment and machinery purchases and expenses, livestock or crop production (including fisheries), and to supplement working capital needs of an entity engaged in farming operations; (3) mortgage loans secured by a [legal] security interest in real property [commercial building or business real property]; (4) obligation in the form of [promissory] notes, used for the funding of construction projects; (5) interbank and other loans to financial institutions for the purpose of liquidity management on the part of the borrower; (6) draws against credit facilities provided to companies involved in mortgage banking activities (warehousing); (7) amounts lent to businesses engaged in international activities (trade financing); (8) lease financings; and (9) loans to governmental entities, net of unearned income. |
2 |
c:LoansReceivableNetOfUnearnedIncomeCorporate |
| Long-term Debt, Fair Value Disclosure |
For an unclassified balance sheet, the Fair Value disclosure of the total of (current and noncurrent) carrying amounts of long-term borrowings as of the balance sheet date, which may include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of long term debt. |
2 |
c:LongTermDebtFairValue |
| Mortgage Servicing Rights MSR |
Mortgage Servicing Rights MSR |
2 |
c:MortgageServicingRightsMSR |
| Net Impairment Losses On Available For Sale Securities |
This item represents the amount of loss recognized for other than temporary impairments of investments in debt and equity securities, net of noncredit impairment losses on certain debt securities that are recognized in other comprehensive income. |
4 |
c:NetImpairmentLossesOnAvailableForSaleSecurities |
| Notes to Consolidated Financial Statements |
|
0 |
c:NotesToConsolidatedFinancialStatementsAbstract |
| Other Comprehensive Income Reclassification Before Tax |
Noncredit portion of impairment losses on debt securities reclassified to OCI for those securities that meet the criteria to have impairment losses bifurcated between net income (credit losses) and OCI (noncredit losses). |
2 |
c:OtherComprehensiveIncomeReclassificationBeforeTax |
| Other Liabilities, Fair Value Disclosure |
Fair Value disclosure of the carrying amount as of the balance sheet date of liabilities not otherwise specified in the taxonomy. Also serves as the sum of liabilities not individually reported in the financial statements, or not separately disclosed in notes. |
2 |
c:OtherLiabilitiesFairValue |
| Other-than-temporary impairment losses on investments |
|
0 |
c:NetImpairmentLossesRecognizedInEarningsAbstract |
| Preferred Stock Issued During Period, Value |
Value of preferred stock issued during the period. |
2 |
c:PreferredStockIssuedDuringPeriodValue |
| Preferred Stock Series H, Accretion Discount |
Preferred Stock Series H, Accretion Discount |
1 |
c:PreferredStockSeriesHAccretionDiscount |
| Provision For Unfunded Lending Commitments |
Credit loss reserves for unfunded corporate lending commitments and letters of credit recorded with Other Liabilities. |
3 |
c:ProvisionForUnfundedLendingCommitments |
| Provisions for Credit Losses and for Benefits and Claims |
Total allowance for consumer and corporate credit losses primarily related to U.S. mortgages, revolving credit, and installment loans net of revolving credit and installment load recoveries. |
4 |
c:ProvisionsForCreditLossesAndForBenefitsAndClaimsTotal |
| Provisions for Credit Losses and for Benefits and Claims [Abstract] |
Allowance for consumer and corporate credit losses primarily related to U.S. mortgages, revolving credit, and installment loans net of revolving credit and installment load recoveries. [Abstract] |
0 |
c:ProvisionsForCreditLossesAndForBenefitsAndClaimsAbstract |
| Purchased Funds And Other Borrowings |
|
2 |
c:PurchasedFundsAndOtherBorrowings |
| Realized Gain Loss on Sales of Investments |
This element represents realized portion of gain or loss on sale of investments. |
4 |
c:RealizedGainLossOnSalesOfInvestments |
| Reset of Convertible Preferred Stock, Conversion Price |
Reset of Convertible Preferred Stock, Conversion Price |
2 |
c:ResetOfConvertiblePreferredStockConversionPrice |
| Restructuring [Text Block] |
Retructuring [Text Block] |
1 |
c:RestructuringTextBlock |
| Securitizations and Variable Interest Entities [Text Block] |
Securitizations and Variable Interest Entities [Text Block] |
1 |
c:SecuritizationsAndVariableInterestEntitiesTextBlock |
| Short-term Borrowings, Fair Value Disclosure |
Reflects the Fair Value disclosure of 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. |
2 |
c:ShortTermBorrowingsFairValue |
| Stock Tendered for Payment of Withholding Taxes |
The value of stock tendered in lieu of withholding taxes. |
2 |
c:StockTenderedForPaymentOfWithholdingTaxes |
| Subsidiary [Domain] |
|
0 |
c:SubsidiaryDomain |
| Subsidiary's Stockholders' Equity [Text Block] |
Citibank, N.A. Statement of Changes in Stockholders' Equity |
1 |
c:SubsidiarysStockholdersEquityTextBlock |
| Trading Account Assets Pledged to Creditors |
This item represents marketable and other securities categorized as trading securities as of the balance sheet date and pledged to creditors. |
2 |
c:TradingAccountAssetsPledgedToCreditors |
| Trading Account Assets and Liabilities [Text Block] |
Trading Account Assets and Liabilities [Text Block] |
1 |
c:TradingAccountAssetsAndLiabilitiesTextBlock |
| Transfer to Repossessed Assets |
Transfer to repossessed assets. |
2 |
c:TransfersToRepossessedAssets |