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CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (AOCI) - Reclassification out of AOCI (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Realized gains and (losses) |  | $ 105 | $ 72 | $ 364 | $ 210
Subtotal, pretax |  | 5,350 | 4,390 | 16,017 | 13,244
Tax effect |  | (1,559) | (1,116) | (4,085) | (3,299)
Income (loss) from continuing operations |  | 3,791 | 3,274 | 11,932 | 9,945
Subtotal, pretax | [1] | 293 | 333 | 571 | 1,199
Other Noninterest Expense | [2],[3] | (2,005) | (1,322) | (4,266) | (4,571)
Citigroup's accumulated other comprehensive income (loss) |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Total amounts reclassified out of AOCI, after-tax |  | 93 | 167 | 287 | 628
Citigroup's accumulated other comprehensive income (loss) | (Gain) loss reclassified from AOCI |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Total amounts reclassified out of AOCI, after-tax |  | 93 | 167 | 287 | 628
Total tax effect |  | (43) | (54) | (95) | (209)
Total amounts reclassified out of AOCI, pretax |  | 136 | 221 | 382 | 837
Realized gains (losses) on investment securities |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Total amounts reclassified out of AOCI, after-tax |  | (73) | (46) | (259) | (136)
Realized gains (losses) on investment securities | (Gain) loss reclassified from AOCI |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Realized gains and (losses) |  | (105) | (72) | (364) | (210)
Gross impairment losses |  | 9 | 13 | 14 | 36
Subtotal, pretax |  | (96) | (59) | (350) | (174)
Tax effect |  | 23 | 13 | 91 | 38
Income (loss) from continuing operations |  | (73) | (46) | (259) | (136)
Debt valuation adjustment (DVA) |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Total amounts reclassified out of AOCI, after-tax |  | 23 | 5 | 29 | 17
Debt valuation adjustment (DVA) | (Gain) loss reclassified from AOCI |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Realized gains and (losses) |  | 42 | 7 | 49 | 23
Tax effect |  | (19) | (2) | (20) | (6)
Income (loss) from continuing operations |  | 23 | 5 | 29 | 17
Cash flow hedges |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Total amounts reclassified out of AOCI, after-tax |  | 100 | 161 | 371 | 619
Cash flow hedges | (Gain) loss reclassified from AOCI |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Tax effect |  | (31) | (52) | (117) | (198)
Subtotal, pretax |  | 131 | 213 | 488 | 817
Total amounts reclassified out of AOCI, after-tax |  | 100 | 161 | 371 | 619
Cash flow hedges | (Gain) loss reclassified from AOCI | Interest rate contracts |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Subtotal, pretax |  | 125 | 212 | 482 | 814
Cash flow hedges | (Gain) loss reclassified from AOCI | Foreign exchange contracts |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Subtotal, pretax |  | 6 | 1 | 6 | 3
Benefit plan adjustments |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Total amounts reclassified out of AOCI, after-tax |  | 46 | 48 | 134 | 141
Benefit plan adjustments | (Gain) loss reclassified from AOCI |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Other Noninterest Expense |  | 62 | 62 | 183 | 188
Total amounts reclassified out of AOCI, after-tax |  | 46 | 48 | 134 | 141
Total tax effect |  | (16) | (14) | (49) | (47)
Prior service cost (benefit) | (Gain) loss reclassified from AOCI |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Other Noninterest Expense |  | (4) | (4) | (13) | (14)
Net actuarial loss | (Gain) loss reclassified from AOCI |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Other Noninterest Expense |  | 66 | 62 | 196 | 196
Curtailment/settlement impact | (Gain) loss reclassified from AOCI |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Other Noninterest Expense |  | 0 | 4 | 0 | 6
Excluded component of fair value hedges |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Total amounts reclassified out of AOCI, after-tax |  | 0 | (1) | 3 | (12)
Excluded component of fair value hedges | (Gain) loss reclassified from AOCI |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Subtotal, pretax |  | 0 | (2) | 3 | (16)
Tax effect |  | 0 | 1 | 0 | 4
Total amounts reclassified out of AOCI, after-tax |  | 0 | (1) | 3 | (12)
Long-duration insurance contracts |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Total amounts reclassified out of AOCI, after-tax |  | 0 | 0 | 0 | (1)
Long-duration insurance contracts | (Gain) loss reclassified from AOCI |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Subtotal, pretax |  | 0 | 0 | 0 | (1)
Tax effect |  | 0 | 0 | 0 | 0
Total amounts reclassified out of AOCI, after-tax |  | 0 | 0 | 0 | (1)
Foreign currency translation adjustment (CTA) |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Total amounts reclassified out of AOCI, after-tax |  | (3) | 0 | 9 | 0
Foreign currency translation adjustment (CTA) | (Gain) loss reclassified from AOCI |  |  |  |  |
Pretax and after-tax amounts reclassified out of accumulated other comprehensive income (loss) |  |  |  |  |
Subtotal, pretax |  | (3) | 0 | 9 | 0
Tax effect |  | 0 | 0 | 0 | 0
Total amounts reclassified out of AOCI, after-tax |  | $ (3) | $ 0 | $ 9 | $ 0
[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.
[2] | Effective January 1, 2025, certain transaction processing fees paid by Citi, primarily to credit card networks, which were previously presented within Other operating expenses, are presented as contra-revenue within Commissions and fees reported in Non-interest revenue. Prior periods were conformed to reflect this change in presentation.
[3] | Effective July 1, 2025, certain expenses incurred in ongoing support of products and services that are predominantly variable costs, which were previously presented within Other operating expenses and Transactional and tax charges, are aggregated and presented within a new expenses category, Transactional and product servicing (see “Glossary” below for definition). Moreover, certain non-income tax charges incurred, which were previously presented within Transactional and tax charges and do not align with the redefined Transactional and product servicing, are presented within Other operating. Prior periods were conformed to reflect this change in presentation.

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- Definition 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. + References No definition available. + Details
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