Schedule I - Condensed Statements of Financial Condition (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
ASSETS:
Cash and cash equivalents	$ 1,835	$ 1,125	$ 1,014
Investment securities	852	1,302
Other assets	878	683
TOTAL ASSETS	32,208	28,854	19,777
LIABILITIES:
Accounts payable, accrued expenses and other	1,223	886
Partnership capital subject to mandatory redemption	3,755	3,589	$ 3,364	$ 2,855
TOTAL LIABILITIES	32,208	28,854
Parent Company [Member]
ASSETS:
Cash and cash equivalents	266	323
Investment securities	74	3
Investment in subsidiaries	3,632	3,356
Other assets	41	55
TOTAL ASSETS	4,013	3,737
LIABILITIES:
Accounts payable, accrued expenses and other	258	148
Partnership capital subject to mandatory redemption	3,755	3,589
TOTAL LIABILITIES	$ 4,013	$ 3,737