SECURITIZATIONS AND VARIABLE INTEREST ENTITIES - Credit Card Securitizations (Details) $ in Billions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2025
USD ($)
|
Jun. 30, 2026
USD ($)
trust
|
Jun. 30, 2025
USD ($)
|
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 | $ 4.5 | $ 4.5 | $ 5.4 | ||
| Retained by Citigroup as trust-issued securities | 2.3 | 2.3 | 2.5 | ||
| Retained by Citigroup via non-certificated interests | 16.3 | 16.3 | 20.7 | ||
| Total | 23.1 | 23.1 | $ 28.6 | ||
| Credit card securitizations | |||||
| Ownership interests in principal amount of trust credit card receivables | |||||
| Proceeds from new securitizations | 0.0 | $ 2.0 | 0.0 | $ 2.0 | |
| Paydown of maturing notes | $ (0.9) | $ 0.0 | $ (0.9) | $ 0.0 | |