Other Assets - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2012 agreement
Related Party Transactions
TRA payment	$ 46	$ 74	$ 346
Future payments expected to be received under TRA	78
Other noninterest income
Related Party Transactions
TRA payment	46	74	1
Worldpay, Inc.
Related Party Transactions
TRA receivable	$ 317	$ 321
Affiliated Entity | Worldpay, Inc.
Related Party Transactions
Number of TRAs entered into | agreement				2
Percentage of cash savings activity				85.00%
Fidelity National Information Services, Inc. and Worldpay, Inc
Related Party Transactions
Payment to terminate and settle certain remaining TRA cash flows			366
Potential termination and settlement of TRA cash flows			720
Fidelity National Information Services, Inc. and Worldpay, Inc | Other noninterest income
Related Party Transactions
Gain from exercise of options			$ 345