Investments - Summary of Carrying Value of Total Investments (Detail) (Parenthetical) - USD ($) $ in Millions		Dec. 31, 2023	Dec. 31, 2022
Schedule of Investments [Line Items]
Trading securities		$ 1,871	$ 1,331
Equity securities at FVTNI		1,585	1,211
Total Equity Method Investments		2,756	1,895
Investments	[1]	9,740	7,466
Deferred Cash Compensation Plan Equity Method Investments [Member]
Schedule of Investments [Line Items]
Total Equity Method Investments		241
Deferred Cash Compensation Plan Mutual Fund Investments [Member]
Schedule of Investments [Line Items]
Investments		14
Deferred Cash Compensation Plans [Member]
Schedule of Investments [Line Items]
Total Equity Method Investments		241	0
Other Investments [Member]
Schedule of Investments [Line Items]
Investments		639	490
Other Investments [Member] | Deferred Cash Compensation Plans [Member]
Schedule of Investments [Line Items]
Investments		9
Consolidated Sponsored Investment Products [Member]
Schedule of Investments [Line Items]
Trading securities		1,829	1,279
Equity securities at FVTNI		1,429	1,089
Investments		$ 5,977	$ 4,669

[1] At December 31, 2023, cash and cash equivalents, investments, other assets and other liabilities include $234 million, $5.0 billion, $83 million and $2.2 billion, respectively, related to consolidated variable interest entities (“VIEs”). At December 31, 2022, cash and cash equivalents, investments, other assets and other liabilities include $234 million, $3.9 billion, $68 million and $1.9 billion, respectively, related to consolidated VIEs.