Fixed Assets - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	$ 624	$ 567	$ 499
Weighted average amortization period for software	5 years	5 years
Capitalized software costs not yet placed in service	$ 249
Purchase of equipment, property and improvements, net	573	$ 456	302
Equipment, Property and Improvements [Member]
Property, Plant and Equipment [Line Items]
Depreciation and amortization expense	160	148	126
Software [Member]
Property, Plant and Equipment [Line Items]
Amortization expense on software	$ 106	$ 75	$ 43