Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 1,691	$ 1,595	$ 4,851	$ 4,187
Other comprehensive income (loss):
Foreign currency translation adjustments	346	(221)	208	0
Comprehensive income (loss)	2,037	1,374	5,059	4,187
Less: Comprehensive income (loss) attributable to noncontrolling interests	60	(9)	152	60
Comprehensive income attributable to BlackRock, Inc.	$ 1,977	$ 1,383	$ 4,907	$ 4,127