Non-U.S. Activities - Schedule of Results From Non-U.S. Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Total revenue	$ 13,000	$ 11,945	$ 12,148
Income before income tax expense	3,395	2,316	3,327
Non-U.S.
Segment Reporting Information [Line Items]
Total revenue	5,485	5,108	5,170
Income before income tax expense	1,376	1,057	1,358
U.S.
Segment Reporting Information [Line Items]
Total revenue	7,515	6,837	6,978
Income before income tax expense	$ 2,019	$ 1,259	$ 1,969