v3.25.4
DISCONTINUED OPERATIONS, SIGNIFICANT DISPOSALS AND OTHER BUSINESS EXITS - Narrative (Details)
shares in Millions, $ in Millions
 3 Months Ended 12 Months Ended
Dec. 15, 2025
USD ($)
shares
Aug. 12, 2023
USD ($)
Mar. 01, 2023
USD ($)
Dec. 31, 2025
USD ($)
business
Dec. 31, 2025
USD ($)
business
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Income (loss) from discontinued operations         $ (3) $ (2) $ (1)
Currency translation adjustments, net of tax [1]         2,788 (5,162) 752
Loss on disposal [2]         1,354 $ 0 (1,462)
Poland Consumer Banking Business | Discontinued Operations, Disposed of by Sale              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Pretax gain (loss) on sale         (186)    
Gain (loss) on sale, after-tax         (157)    
Poland Consumer Banking Business | Discontinued Operations, Held-for-sale              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Loss on sale of business, foreign currency translation adjustments, pretax         181    
Loss on sale of business, foreign currency translation adjustments, after-tax         138    
Total assets       $ 6,454 6,454    
Total liabilities       6,207 6,207    
Deposits       6,144 6,144    
India Consumer Banking Business | Discontinued Operations, Disposed of by Sale              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Total assets     $ 5,200        
Loans (net of allowance of $249 million at September 30, 2021)     3,400        
Loans, allowance for credit losses     32        
Total liabilities     5,200        
Deposits     5,100        
Pretax gain (loss) on sale     1,000       1,059
Gain (loss) on sale, after-tax     $ 717       727
Gain (loss) on sale of business, after-tax, location     Other revenue        
Taiwan Consumer Banking Business | Discontinued Operations, Disposed of by Sale              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Total assets   $ 11,600          
Loans (net of allowance of $249 million at September 30, 2021)   7,200          
Loans, allowance for credit losses   92          
Total liabilities   9,200          
Deposits   9,000          
Pretax gain (loss) on sale   409         403
Gain (loss) on sale, after-tax   $ 289         $ 284
AO Citibank | Discontinued Operations, Held-for-sale              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Loss on sale of business, foreign currency translation adjustments, pretax       1,600      
Total assets       12,570 12,570    
Total liabilities       12,789 12,789    
Deposits       12,742 $ 12,742    
Pretax gain (loss) on sale       (1,200)      
Gain (loss) on sale, after-tax       $ (1,100)      
Consumer Banking Businesses              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Number of business sold | business       9 9    
Banamex | Disposal Group, Disposed of by Sale, Not Discontinued Operations              
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]              
Ownership percentage 0.25            
Amount sold (in shares) | shares 520            
Price to book value 0.80            
Sales consideration $ 2,300            
Currency translation adjustments, net of tax 2,300            
Loss on disposal 600            
Net income attributable to Citigroup common shareholders         $ 13,192    
Increase in equity $ 1,700       1,689    
Changes from net income attributable to Citigroup common shareholders and changes in Citigroup’s ownership interest         $ 14,881    
[1] The changes below are exclusive of the impacts of the Banamex equity interest sale. See the Consolidated Statement of Changes in Stockholders’ Equity and Note 21.
[2] See “Significant Disposals” in Note 2.