XML 134 R110.htm IDEA: XBRL DOCUMENT
v3.25.3

GOODWILL AND INTANGIBLE ASSETS - Changes in Intangible Assets (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2025 | Dec. 31, 2024
Finite and Indefinite-lived Intangible Assets |  |
Beginning balance | $ 3,734 |
Acquisitions/renewals/ divestitures | 0 |
Amortization | (183) |
Impairments | 0 |
FX translation and other | 31 |
Ending balance | 3,582 |
Mortgage servicing rights (MSRs) | 748 | $ 760
Total intangible assets | 4,330 | $ 4,494
Indefinite-lived intangible assets |  |
Finite and Indefinite-lived Intangible Assets |  |
Beginning balance | 197 |
Acquisitions/renewals/ divestitures | 0 |
Amortization | 0 |
Impairments | 0 |
FX translation and other | 26 |
Ending balance | 223 |
Purchased credit card relationships |  |
Finite and Indefinite-lived Intangible Assets |  |
Beginning balance | 808 |
Acquisitions/renewals/ divestitures | 0 |
Amortization | (99) |
Impairments | 0 |
FX translation and other | 0 |
Ending balance | 709 |
Credit card contract related intangibles |  |
Finite and Indefinite-lived Intangible Assets |  |
Beginning balance | 2,681 |
Acquisitions/renewals/ divestitures | 0 |
Amortization | (69) |
Impairments | 0 |
FX translation and other | 2 |
Ending balance | 2,614 |
Other customer relationships |  |
Finite and Indefinite-lived Intangible Assets |  |
Beginning balance | 47 |
Acquisitions/renewals/ divestitures | 0 |
Amortization | (15) |
Impairments | 0 |
FX translation and other | 3 |
Ending balance | 35 |
Present value of future profits |  |
Finite and Indefinite-lived Intangible Assets |  |
Beginning balance | 1 |
Acquisitions/renewals/ divestitures | 0 |
Amortization | 0 |
Impairments | 0 |
FX translation and other | 0 |
Ending balance | $ 1 |

X
- References No definition available. + Details
Name: | c_FiniteAndIndefiniteLivedIntangibleAssetsRollForward
Namespace Prefix: | c_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition 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. + References No definition available. + Details
Name: | c_IntangibleAssetsExcludingMortgageServicingRights
Namespace Prefix: | c_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Intangible Assets, Excluding Mortgage Servicing Rights Acquisitions (Divestitures) + References No definition available. + Details
Name: | c_IntangibleAssetsExcludingMortgageServicingRightsAcquisitionsDivestitures
Namespace Prefix: | c_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This element represents the aggregate amount of amortization of intangible assets excluding mortgage servicing rights (MSRs) during the period. + References No definition available. + Details
Name: | c_IntangibleAssetsExcludingMortgageServicingRightsAmortizationOfIntangibleAssets
Namespace Prefix: | c_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This element represents the aggregate amount of impairment of intangible assets excluding mortgage servicing rights (MSRs) during the period. + References No definition available. + Details
Name: | c_IntangibleAssetsExcludingMortgageServicingRightsImpairments
Namespace Prefix: | c_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition 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. + References No definition available. + Details
Name: | c_IntangibleAssetsExcludingMortgageServicingRightsTranslationAndPurchaseAccountingAdjustments
Namespace Prefix: | c_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition 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. + References No definition available. + Details
Name: | c_IntangibleAssetsIncludingMortgageServicingRights
Namespace Prefix: | c_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of mortgage servicing rights (MSRs) as of the balance sheet date. + References No definition available. + Details
Name: | c_MortgageServicingRightsMSR
Namespace Prefix: | c_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_IndefinitelivedIntangibleAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=c_PurchasedCreditCardRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_ContractBasedIntangibleAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=c_OtherCustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=c_PresentValueOfFutureProfitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |