Settlement Assets and Obligations (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Settlement assets
Cash and cash equivalents	$ 1,825	$ 1,656
Receivables	9,696	10,212
Total settlement assets	11,521	11,868
Settlement obligations
Payment instruments outstanding	483	345
Card settlements due to merchants	11,038	11,523
Total settlement obligations	$ 11,521	$ 11,868

Cash received or short term receivables for unsettled money transfers, money orders, consumer payments, or business to business payments. Settlement assets include clearing and settling customers payments due to and from financial institutions and may include cash and cash equivalents.

No definition available.

Name:	us-gaap_SettlementAssetsCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant