XML 111 R87.htm IDEA: XBRL DOCUMENT

Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Other Commitments [Line Items]
Unused credit available to accountholders	$ 3,300	$ 3,000
Allowance for negative customer balances	250	270
Accrued Expenses and Other Current Liabilities
Other Commitments [Line Items]
Allowance for transaction losses	$ 118	$ 144