Schedule I - Condensed Statements of Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net revenue:
Revenues	$ 16,257	$ 14,080	$ 12,411
Interest expense	253	282	142
Net revenue	16,004	13,798	12,269
OPERATING EXPENSES
Compensation and benefits	11,105	9,390	8,568
Other operating expenses	602	641	462
Total operating expenses	14,023	12,186	10,865
Allocations to partners		(1,612)	(1,404)
NET INCOME	0	0	0
Other comprehensive (loss):
Foreign currency translation	(9)	0	0
Comprehensive loss before allocations	(9)	0	0
Total comprehensive loss	0	0	0
Parent Company [Member]
Net revenue:
Revenues	5,118	4,422	3,797
Interest expense	131	132	92
Net revenue	4,987	4,290	3,705
OPERATING EXPENSES
Compensation and benefits	3,004	2,672	2,301
Other operating expenses	2	6	0
Total operating expenses	3,006	2,678	2,301
Income before allocations	1,981	1,612	1,404
Allocations to partners	(1,981)	(1,612)	(1,404)
NET INCOME	0	0	0
Other comprehensive (loss):
Foreign currency translation	(9)	0	0
Comprehensive loss before allocations	(9)	0	0
Allocations to partners	(9)	0	0
Total comprehensive loss	0	0	0
Parent Company [Member] | Subsidiary Earnings [Member]
Net revenue:
Revenues	1,921	1,561	1,386
Parent Company [Member] | Management Fee Income [Member]
Net revenue:
Revenues	3,135	2,804	2,391
Parent Company [Member] | Other [Member]
Net revenue:
Revenues	$ 62	$ 57	$ 20