Cash Flow Information - Schedule of Supplemental Cash Flow Information (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Supplemental Cash Flow Elements [Abstract]
Cash paid for interest		$ 282	$ 141	$ 94
Cash paid for taxes		33	17	13
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
Declared distributions for retired partnership capital in current year but unpaid at year end	[1]	$ 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.