v3.24.4
Litigation and Regulatory Matters (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Dec. 22, 2020
Dec. 31, 2023
Dec. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Jun. 30, 2023
Loss Contingencies [Line Items]              
Litigation Settlement, Expense       $ 17 $ 15 $ 59  
Card Product Misclassification [Member]              
Loss Contingencies [Line Items]              
Decrease in Accrued Merchant Refund Liability   $ 12          
Card Product Misclassification Merchant and Merchant acquirers              
Loss Contingencies [Line Items]              
Accrued Liabilities and Other Liabilities   1,159 $ 1,159 1,159     $ 992
Loss Contingency Accrual, Provision for Refund of Overcharges     55        
Loss Contingency Accrual, Provision for Interest on Overcharges     124        
Loss Contingency Accrual, Payments     (12)        
Card Product Misclassification Merchant and Merchant acquirers | Previously Reported              
Loss Contingencies [Line Items]              
Accrued Liabilities and Other Liabilities   375 375 375     365
Loss Contingency Accrual, Provision for Refund of Overcharges     22        
Loss Contingency Accrual, Provision for Interest on Overcharges     0        
Loss Contingency Accrual, Payments     (12)        
Card Product Misclassification Merchant and Merchant acquirers | Revision of Prior Period, Error Correction, Adjustment              
Loss Contingencies [Line Items]              
Accrued Liabilities and Other Liabilities   784 784 784     $ 627
Loss Contingency Accrual, Provision for Refund of Overcharges     33        
Loss Contingency Accrual, Provision for Interest on Overcharges     124        
Loss Contingency Accrual, Payments     0        
Unfavorable Regulatory Action [Member] | Consumer Financial Protection Bureau Consent Order [Member]              
Loss Contingencies [Line Items]              
Amount of civil money penalty for CFPB consent order $ 25            
Maximum [Member] | Pending and Threatened Litigation [Member]              
Loss Contingencies [Line Items]              
Loss Contingency, Range of Possible Loss, Portion Not Accrued   $ 230 $ 230 $ 230      
Minimum [Member] | Unfavorable Regulatory Action [Member] | Consumer Financial Protection Bureau Consent Order [Member]              
Loss Contingencies [Line Items]              
Aggregate range of reasonably possible losses $ 10