Fair Value Disclosures - Fair Value of Financial Assets and Financial Liabilities (Parenthetical) (Detail) - USD ($) $ / shares in Units, $ in Millions		Mar. 31, 2025	Dec. 31, 2024
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash and cash equivalents	[1]	$ 7,747	$ 12,762
Money market valuation per share floor		$ 1
Derivative cash collateral		$ 91	69
Restricted cash included in other assets		17	17
Money Market Funds [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Cash and cash equivalents		$ 2,400	$ 6,200

[1] At March 31, 2025, cash and cash equivalents, investments, other assets and other liabilities include $282 million, $5.5 billion, $77 million and $2.1 billion, respectively, related to consolidated variable interest entities (“VIEs”). At December 31, 2024, cash and cash equivalents, investments, other assets and other liabilities include $125 million, $5.1 billion, $45 million and $2.1 billion, respectively, related to consolidated VIEs.