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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Jan. 01, 2023
Schedule Of Commitments And Contingencies [Line Items]
General partner capital funding	$ 4,700.0
Total investments at risk in respect of guarantees extended	$ 32.0
Contingent obligations currently anticipated to expire end	2032
Provision for cash clawback	$ 1,000.0
Contingent Obligations (Clawback)	6,500.0
Blackstone Real Estate Investment Trust or BREIT
Schedule Of Commitments And Contingencies [Line Items]
Percentage Of Incremental Cash Payment In Excess Of Target Return		5.00%
Security Owned and Pledged as Collateral, Associated Liabilities, Fair Value	646.0
Investments Pledged fair value	1,100.0	$ 1,100.0
Common stock, value, subscriptions			$ 4,500.0
Blackstone Real Estate Investment Trust or BREIT | University of California
Schedule Of Commitments And Contingencies [Line Items]
Percentage of targeted annualized net return		11.25%
Cost of the investment		$ 4,500.0
Blackstone Holdings
Schedule Of Commitments And Contingencies [Line Items]
Loans held By employees for investment guaranteed	76.0
Contingent Obligations (Clawback)	6,100.0
Consolidated Blackstone Funds
Schedule Of Commitments And Contingencies [Line Items]
Funds signed investment commitments	324.2
Consolidated Blackstone Funds | Portfolio Company Acquisition
Schedule Of Commitments And Contingencies [Line Items]
Signed investment commitments for portfolio company acquisitions in process of closing	$ 206.5

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