Schedule I - Condensed Statements of Income (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net revenue:
Revenues	$ 14,080	$ 12,411	$ 12,373
Interest expense	282	142	94
Net revenue	13,798	12,269	12,279
OPERATING EXPENSES
Compensation and benefits	9,390	8,568	8,720
Other operating expenses	641	462	413
Total operating expenses	12,186	10,865	10,674
Income before allocations to partners	1,612	1,404	1,605
Allocations to partners	(1,612)	(1,404)	(1,605)
NET INCOME	0	0	0
Parent Company [Member]
Net revenue:
Revenues	4,422	3,797	4,001
Interest expense	132	92	92
Net revenue	4,290	3,705	3,909
OPERATING EXPENSES
Compensation and benefits	2,672	2,301	2,303
Other operating expenses	6	0	1
Total operating expenses	2,678	2,301	2,304
Income before allocations to partners	1,612	1,404	1,605
Allocations to partners	(1,612)	(1,404)	(1,605)
NET INCOME	0	0	0
Parent Company [Member] | Subsidiary Earnings [Member]
Net revenue:
Revenues	1,561	1,386	1,593
Parent Company [Member] | Management Fee Income [Member]
Net revenue:
Revenues	2,804	2,391	2,395
Parent Company [Member] | Other [Member]
Net revenue:
Revenues	$ 57	$ 20	$ 13