Schedule I - Condensed Statements of Cash Flow (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income		$ 0	$ 0	$ 0
Adjustments to reconcile net income to net cash provided by operating activities:
Income before allocations to partners		1,612	1,404	1,605
Changes in assets and liabilities:
Investment in subsidiaries		47	0	0
Other assets		(206)	(54)	(195)
Accounts payable and accrued expenses		309	7	227
Net cash (used in) provided by operating activities		(1,226)	2,353	2,395
CASH FLOWS FROM INVESTING ACTIVITIES:
Investment in subsidiaries		(47)	0	0
Net cash used in investing activities		(456)	(302)	(234)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of general partnership loans		(58)	(71)	(45)
Issuance of partnership interests		638	63	66
Redemption of partnership interests		(386)	(336)	(260)
Distributions from partnership capital		(1,193)	(1,173)	(1,181)
Net cash used in financing activities		(883)	(1,375)	(1,330)
Net (decrease) increase in cash, cash equivalents and restricted cash		(2,565)	676	831
CASH AND CASH EQUIVALENTS:
Beginning of year		8,382	7,706	6,875
End of year		5,817	8,382	7,706
NON-CASH ACTIVITIES:
Issuance of general partnership interests through partnership loans in current year		319	276	222
Repayment of partnership loans through distributions from partnership capital in current year		215	262
Declared distributions for retired partnership capital in current year but unpaid at year end	[1]	140	219	254
Parent Company [Member]
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income		0	0	0
Adjustments to reconcile net income to net cash provided by operating activities:
Income before allocations to partners		1,612	1,404	1,605
Changes in assets and liabilities:
Investment in subsidiaries		(637)	58	(71)
Investment securities		(103)	(105)	(276)
Other assets		(13)	(27)	14
Accounts payable and accrued expenses		12	(5)	1
Net cash (used in) provided by operating activities		871	1,325	1,273
CASH FLOWS FROM INVESTING ACTIVITIES:
Investment in subsidiaries		637	(58)	71
Net cash used in investing activities		(47)	0	0
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of general partnership loans		58	71	17
Issuance of partnership interests		638	63	66
Redemption of partnership interests		(386)	(336)	(260)
Distributions from partnership capital		(1,193)	(1,173)	(1,153)
Net cash used in financing activities		(883)	(1,375)	(1,330)
Net (decrease) increase in cash, cash equivalents and restricted cash		(59)	(50)	(57)
CASH AND CASH EQUIVALENTS:
Beginning of year		216	266	323
End of year		157	216	266
NON-CASH ACTIVITIES:
Issuance of general partnership interests through partnership loans in current year		319	276	222
Repayment of partnership loans through distributions from partnership capital in current year		157	191	225
Declaration of distributions from subsidiary in current year but received after year end		930	667	434
Declared distributions for retired partnership capital in current year but unpaid at year end		$ 140	$ 219	$ 254

[1] Declared distributions for retired Partnership capital are included in the accounts payable, accrued expenses and other line of the Consolidated Statements of Financial Condition.