Segment Reporting - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) Segment	Dec. 31, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of reportable operating segments | Segment	4
Total assets	$ 61,375	$ 70,795
Business Processing [Member]
Segment Reporting Information [Line Items]
Total assets	380	390
Other Segment [Member]
Segment Reporting Information [Line Items]
Total assets	$ 1,400	$ 2,100