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Acquisitions and Dispositions - Purchase Price Allocation (Details) - USD ($) $ in Millions	Apr. 01, 2022	Jun. 30, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Goodwill		$ 37,109	$ 36,811
Finxact, Inc.
Business Acquisition [Line Items]
Cash	$ 27
Other net assets	1
Intangible assets	105
Goodwill	670
Total consideration	803
Less: Fair value of previously held equity interest	(131)
Total purchase price	$ 672