v3.25.2
SECURITIZATIONS AND VARIABLE INTEREST ENTITIES - Schedule of Variable Interest Entities (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Variable Interest Entity    
Total involvement with SPE assets $ 581,756 $ 528,659
Consolidated VIE/SPE assets 2,622,772 2,352,945
Significant unconsolidated VIE assets 522,809 468,620
Funded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, debt investments 68,224 64,618
Maximum exposure to loss in significant unconsolidated VIEs, equity investments 3,632 3,483
Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, funding commitments 19,498 16,351
Maximum exposure to loss in significant unconsolidated VIEs, guarantees and derivatives 172 172
Funded and Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs 91,526 84,624
Private equity    
Variable Interest Entity    
Significant unconsolidated VIE assets 91,700 45,500
Funded and Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs 867 824
Private equity    
Funded and Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs 8,700 8,100
Consolidated VIEs    
Variable Interest Entity    
Consolidated VIE/SPE assets 58,947 60,039
Credit card securitizations    
Variable Interest Entity    
Total involvement with SPE assets 28,094 29,746
Significant unconsolidated VIE assets 0 0
Funded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, debt investments 0 0
Maximum exposure to loss in significant unconsolidated VIEs, equity investments 0 0
Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, funding commitments 0 0
Maximum exposure to loss in significant unconsolidated VIEs, guarantees and derivatives 0 0
Funded and Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs 0 0
Credit card securitizations | Consolidated VIEs    
Variable Interest Entity    
Consolidated VIE/SPE assets 28,094 29,746
Mortgage securitizations - U.S. agency-sponsored    
Variable Interest Entity    
Total involvement with SPE assets 118,516 120,568
Significant unconsolidated VIE assets 118,516 120,568
Funded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, debt investments 3,287 2,387
Maximum exposure to loss in significant unconsolidated VIEs, equity investments 0 0
Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, funding commitments 0 0
Maximum exposure to loss in significant unconsolidated VIEs, guarantees and derivatives 119 123
Funded and Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs 3,406 2,510
Mortgage securitizations - U.S. agency-sponsored | Consolidated VIEs    
Variable Interest Entity    
Consolidated VIE/SPE assets 0 0
Mortgage securitizations - Non-agency-sponsored    
Variable Interest Entity    
Total involvement with SPE assets 64,406 62,378
Significant unconsolidated VIE assets 64,406 62,378
Funded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, debt investments 4,099 3,479
Maximum exposure to loss in significant unconsolidated VIEs, equity investments 0 0
Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, funding commitments 336 566
Maximum exposure to loss in significant unconsolidated VIEs, guarantees and derivatives 0 0
Funded and Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs 4,435 4,045
Mortgage securitizations - Non-agency-sponsored | Consolidated VIEs    
Variable Interest Entity    
Consolidated VIE/SPE assets 0 0
Citi-administered asset-backed commercial paper conduits    
Variable Interest Entity    
Total involvement with SPE assets 20,217 21,306
Significant unconsolidated VIE assets 0 0
Funded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, debt investments 0 0
Maximum exposure to loss in significant unconsolidated VIEs, equity investments 0 0
Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, funding commitments 0 0
Maximum exposure to loss in significant unconsolidated VIEs, guarantees and derivatives 0 0
Funded and Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs 0 0
Citi-administered asset-backed commercial paper conduits | Consolidated VIEs    
Variable Interest Entity    
Consolidated VIE/SPE assets 20,217 21,306
Collateralized loan obligations (CLOs)    
Variable Interest Entity    
Total involvement with SPE assets 2,528 3,920
Significant unconsolidated VIE assets 2,528 3,920
Funded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, debt investments 1,031 2,019
Maximum exposure to loss in significant unconsolidated VIEs, equity investments 0 0
Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, funding commitments 0 0
Maximum exposure to loss in significant unconsolidated VIEs, guarantees and derivatives 0 0
Funded and Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs 1,031 2,019
Collateralized loan obligations (CLOs) | Consolidated VIEs    
Variable Interest Entity    
Consolidated VIE/SPE assets 0 0
Asset-backed securities    
Variable Interest Entity    
Total involvement with SPE assets 323,102 268,498
Significant unconsolidated VIE assets 314,454 260,551
Funded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, debt investments 57,299 54,349
Maximum exposure to loss in significant unconsolidated VIEs, equity investments 675 735
Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, funding commitments 15,775 13,185
Maximum exposure to loss in significant unconsolidated VIEs, guarantees and derivatives 0 0
Funded and Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs 73,749 68,269
Asset-backed securities | Consolidated VIEs    
Variable Interest Entity    
Consolidated VIE/SPE assets 8,648 7,947
Municipal securities tender option bond trusts (TOBs)    
Variable Interest Entity    
Total involvement with SPE assets 1,901 935
Significant unconsolidated VIE assets 0 0
Funded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, debt investments 0 0
Maximum exposure to loss in significant unconsolidated VIEs, equity investments 0 0
Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, funding commitments 0 0
Maximum exposure to loss in significant unconsolidated VIEs, guarantees and derivatives 0 0
Funded and Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs 0 0
Municipal securities tender option bond trusts (TOBs) | Consolidated VIEs    
Variable Interest Entity    
Consolidated VIE/SPE assets 1,901 935
Municipal investments    
Variable Interest Entity    
Total involvement with SPE assets 21,433 20,280
Significant unconsolidated VIE assets 21,433 20,277
Funded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, debt investments 2,493 2,360
Maximum exposure to loss in significant unconsolidated VIEs, equity investments 2,911 2,730
Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, funding commitments 3,293 2,502
Maximum exposure to loss in significant unconsolidated VIEs, guarantees and derivatives 0 0
Funded and Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs 8,697 7,592
Municipal investments | Consolidated VIEs    
Variable Interest Entity    
Consolidated VIE/SPE assets 0 3
Client intermediation    
Variable Interest Entity    
Total involvement with SPE assets 380 387
Significant unconsolidated VIE assets 300 306
Funded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, debt investments 11 20
Maximum exposure to loss in significant unconsolidated VIEs, equity investments 0 0
Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, funding commitments 0 0
Maximum exposure to loss in significant unconsolidated VIEs, guarantees and derivatives 53 49
Funded and Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs 64 69
Client intermediation | Consolidated VIEs    
Variable Interest Entity    
Consolidated VIE/SPE assets 80 81
Investment funds    
Variable Interest Entity    
Total involvement with SPE assets 1,179 641
Significant unconsolidated VIE assets 1,172 620
Funded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, debt investments 4 4
Maximum exposure to loss in significant unconsolidated VIEs, equity investments 46 18
Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs, funding commitments 94 98
Maximum exposure to loss in significant unconsolidated VIEs, guarantees and derivatives 0 0
Funded and Unfunded Exposure    
Maximum exposure to loss in significant unconsolidated VIEs 144 120
Investment funds | Consolidated VIEs    
Variable Interest Entity    
Consolidated VIE/SPE assets $ 7 $ 21