XML 94 R70.htm IDEA: XBRL DOCUMENT
v3.25.3

PRINCIPAL TRANSACTIONS (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Principal transactions revenue |  |  |  |  |
Principal transactions revenue | [1] | $ 2,772 | $ 2,835 | $ 8,785 | $ 8,656
Interest rate risks |  |  |  |  |
Principal transactions revenue |  |  |  |  |
Principal transactions revenue |  | 322 | 615 | 1,465 | 1,625
Foreign exchange risks |  |  |  |  |
Principal transactions revenue |  |  |  |  |
Principal transactions revenue |  | 1,545 | 1,238 | 4,572 | 3,877
Equity risks |  |  |  |  |
Principal transactions revenue |  |  |  |  |
Principal transactions revenue |  | 807 | 596 | 1,997 | 1,840
Equity risks | Visa |  |  |  |  |
Principal transactions revenue |  |  |  |  |
Principal transactions revenue |  |  |  |  | 400
Commodity and other risks |  |  |  |  |
Principal transactions revenue |  |  |  |  |
Principal transactions revenue |  | 219 | 383 | 850 | 1,007
Credit products and risks |  |  |  |  |
Principal transactions revenue |  |  |  |  |
Principal transactions revenue |  | $ (121) | $ 3 | $ (99) | $ 307
[1] | Effective July 1, 2025, gains and losses on certain economic and qualifying hedging derivatives and foreign currency transaction gains and losses related to non-U.S. dollar debt and certain foreign operations in countries with highly inflationary economies with the U.S. dollar as their functional currency, which were previously presented within Other revenue, are presented within Principal transactions. Prior periods were conformed to reflect this change in presentation.

X
- Definition Amount of realized and unrealized gain (loss) resulting from the difference between acquisition price and selling price or fair value of trading assets and trading liabilities, and from the firm's direct investment activity, conducted separately from customer trading activities, including, but not limited to, investments in private equity, alternative investment products, real estate, and exchanges and memberships. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 940 -SubTopic 320 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479048/940-320-50-1 + Details
Name: | us-gaap_PrincipalTransactionsRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 940 -SubTopic 320 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479048/940-320-50-1 + Details
Name: | us-gaap_PrincipleTransactionRevenueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_TradingActivityByTypeAxis=us-gaap_InterestRateContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TradingActivityByTypeAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TradingActivityByTypeAxis=us-gaap_EquityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=c_VisaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TradingActivityByTypeAxis=c_CommodityAndOtherContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TradingActivityByTypeAxis=us-gaap_CreditRiskContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |