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Fee Income from Contracts with Customers - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Disaggregation of Revenue [Line Items]          
Deferred fee income $ 3   $ 3   $ 3
Credit card fees, net          
Disaggregation of Revenue [Line Items]          
Interchange fees 27 $ 29 53 $ 54  
Rewards program costs $ 17 $ 15 $ 33 $ 30