Non-U.S. Activities - Schedule of Results from Non-U.S. Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Total revenue	$ 3,101	$ 3,081
Income before income tax expense	688	754
Non-U.S.
Segment Reporting Information [Line Items]
Total revenue	1,283	1,380
Income before income tax expense	252	362
U.S.
Segment Reporting Information [Line Items]
Total revenue	1,818	1,701
Income before income tax expense	$ 436	$ 392