SECURITIZATIONS AND VARIABLE INTEREST ENTITIES - Credit Card Securitizations (Details) $ in Billions |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2026
USD ($)
trust
|
Dec. 31, 2025
USD ($)
|
|
| Securitized credit card receivables | ||
| Number of trusts to hold securitized credit card receivables | trust | 2 | |
| Ownership interests in principal amount of trust credit card receivables | ||
| Sold to investors via trust-issued securities | $ 5.4 | $ 5.4 |
| Retained by Citigroup as trust-issued securities | 2.3 | 2.5 |
| Retained by Citigroup via non-certificated interests | 15.3 | 20.7 |
| Total | $ 23.0 | $ 28.6 |