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Commitments and Contingencies (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Loss Contingencies [Line Items]
Subscriber funds	$ 733	$ 3,500
Subsidiary Merchant Matters | Minimum
Loss Contingencies [Line Items]
Estimated range of exposure	0
Subsidiary Merchant Matters | Maximum
Loss Contingencies [Line Items]
Estimated range of exposure	100
First Data | First Data Subsidiary Merchant Matters
Loss Contingencies [Line Items]
Loss contingency accrual	$ 38	$ 32

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