Settlement Assets and Obligations (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Settlement assets
Cash and cash equivalents	$ 1,756	$ 2,283	$ 2,361
Receivables	25,925	19,199
Total settlement assets	27,681	21,482
Settlement obligations
Payment instruments outstanding	733	650
Card settlements and collateral deposits due to merchants	26,948	20,832
Total settlement obligations	$ 27,681	$ 21,482