Segment Information (Details) - Enterprise-Wide Disclosures - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues based on location
Benchmark percentage of revenue transactions from a single customer	10.00%	10.00%	10.00%
Total revenues	$ 34,816	$ 31,981	$ 31,581
United States [Member]
Revenues based on location
Total revenues	32,596	30,123	29,638
Non-U.S. [Member]
Revenues based on location
Total revenues	2,220	1,858	1,943
Canada [Member]
Revenues based on location
Total revenues	1,351	1,278	1,371
Other Non-U.S. [Member]
Revenues based on location
Total revenues	$ 869	$ 580	$ 572