v3.25.2
SECURITIZATIONS AND VARIABLE INTEREST ENTITIES - Credit Card Securitizations (Details)
$ in Billions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
trust
Jun. 30, 2024
USD ($)
Dec. 31, 2024
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 [Abstract]          
Portion of Principal Amount Outstanding of Securitized Assets and Any Other Financial Assets Managed Together Sold to Investors Via Trust Credit Card Receivables $ 7.2   $ 7.2   $ 5.2
Portion of Securitized Assets and Any Other Financial Assets Managed Together Retained by Trust Issued Securities 3.3   3.3   3.7
Portion of Securitized Assets and Any Other Financial Assets Managed Together Retained by Reporting Entity Via Non Certificated Interests 29.1   29.1   22.1
Total ownership interests in principal amount of trust credit card receivables 39.6   39.6   $ 31.0
Credit card securitizations          
Cash Flows Between Transferor and Transferee          
Proceeds from new securitizations 2.0 $ 0.0 2.0 $ 0.0  
Pay down of maturing notes $ 0.0 $ 1.1 $ 0.0 $ 1.2