| Common stock, shares authorized (in shares) | 90B | 90B | 90B | 90B | 90B | 90B | 90B | 90B |
| Long-term debt, gross | $10.7B | $10.8B | $11.3B | $12.5B | $12B | $12B | $12.4B | $13.3B |
| Loans Payable | $10.7B | $10.8B | $11.3B | $12.5B | $12B | $12B | $12.4B | $13.3B |
| Debt Instrument, Fair Value Disclosure | $9.3B | $9.8B | $9.9B | $11.2B | $10.8B | $11B | $11.4B | $12B |
| Loss Contingency Estimate Of Possible Loss | $6.9B | $7.1B | $7.3B | $7.4B | $7.9B | $8.2B | $8.3B | $8.4B |
| Thereafter | $8.3B | $8.3B | $8.3B | $8.2B | $8.3B | $8.3B | $8.4B | $8.4B |
| Nonredeemable Noncontrolling Interest | $5.7B | $6B | $6.2B | $6.4B | $6.8B | $7.2B | $7.2B | $7.2B |
| Other receivables | $4.9B | $5.2B | $5.4B | $5.4B | $5.5B | $5.8B | $6.4B | $6.4B |
| Management Fees Performance Revenues Reimbursable Expenses And Other Receivables From Non Consolidated Entities And Portfolio Companies | $3.7B | $3.9B | $4B | $4.2B | $4.3B | $4.5B | $5B | $5B |
| Assets Consolidation Impact | — | — | — | — | — | — | — | -$4.7B |
| Minority Interest In Operating Partnerships | $5.3B | $5.5B | $4.3B | $4.1B | $4.4B | $4.3B | $4.6B | $4.4B |
| Derivative Liability Notional Amount | $2B | $2.8B | $3.1B | $3B | $3.8B | $3.4B | $4B | $3.4B |
| Unrecognized compensation cost related to non-vested awards | $2.6B | $2.3B | $2.5B | $2.9B | $2.7B | $2.5B | $2.6B | $3.1B |
| Derivative Asset Notional Amount | $1.8B | $2.1B | $1.7B | $1.9B | $1.9B | $2.3B | $2B | $2.2B |
| Due To Certain Non Controlling Interest Holders In Connection With Tax Receivable Agreements | $1.7B | $1.7B | $1.8B | $2B | $2B | $2.1B | $2.1B | $2B |
| 2029 | $664.1M | $664.1M | $625.2M | $919.4M | $839.5M | $833.5M | $1.2B | $2B |
| Expected Future Payments Under Tax Receivable Agreements | $1.7B | $1.7B | $1.8B | $2B | $2B | $2.1B | $2.1B | $2B |
| Gross Carrying Amount | $1.8B | $1.8B | $1.8B | $1.7B | $1.7B | $1.7B | $1.7B | $1.7B |
| Share Repurchase Program, Remaining Authorized, Amount | $424.1M | $1.9B | $1.8B | $1.8B | $1.8B | $1.7B | $1.7B | $1.7B |
| Finite-Lived Intangible Assets, Accumulated Amortization | $1.6B | $1.6B | $1.6B | $1.6B | $1.6B | $1.6B | $1.6B | $1.6B |
| Redeemable noncontrolling interests in subsidiaries | $888.9M | $892.8M | $801.4M | $1.4B | $1.5B | $1.5B | $1.4B | $1.4B |
| Gross Assets/Liabilities | $860.2M | $949.4M | $1.1B | $1.1B | $1.2B | $1.2B | $1.3B | $1.3B |
| Derivatives, gross, liabilities | $860.2M | $949.4M | $1.1B | $1.1B | $1.2B | $1.2B | $1.3B | $1.3B |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number | 1.2B | 1.2B | 1.2B | 1.2B | 1.2B | 1.2B | 1.2B | 1.2B |
| Shares Eligible For Dividends And Distributions | 1.2B | 1.2B | 1.2B | 1.2B | 1.2B | 1.2B | 1.2B | 1.2B |
| Due From Certain Non Controlling Interest Holders And Blackstone Employees | $1B | $1.1B | $1.2B | $1.1B | $1B | $1.2B | $1B | $1.1B |
| Cumulative Cost Basis | $964.6M | $978.1M | $989.5M | $1B | $931.5M | $950.2M | $952.6M | $987.6M |
| 2028 | $329.6M | $342.3M | $627.3M | $649M | $707.2M | $805.1M | $900M | $900M |
| Loss Contingency Accrual | $369M | $440.5M | $499.5M | $425.2M | $503.2M | $633.6M | $806.3M | $892.4M |
| Common Stock Eligible For Dividends And Distributions | 768.2M | 767.9M | 768.7M | 773M | 782.6M | 782.7M | 783.2M | 785.5M |
| 2030 | $911.6M | $911.6M | $660.1M | $1.6B | $1.4B | $1.2B | $704.8M | $774.4M |
| Common stock, shares issued (in shares) | 722.5M | 730.7M | 731.9M | 737.9M | 739.1M | 747.8M | 748.7M | 751.5M |
| Common Stock, Shares, Outstanding | 722.5M | 730.7M | 731.9M | 737.9M | 739.1M | 747.8M | 748.7M | 751.5M |
| 2027 | $0 | $0 | $318.8M | $324.5M | $0 | $50.5M | $704.8M | $693.2M |
| 2029 | $648.8M | $674.1M | $911.6M | $900M | $900M | $950.5M | $650M | $650M |
| After Tax Net Present Value Estimated Payments For Tax Receivable Agreements | $517.6M | $523.9M | $529.9M | $611.9M | $631.5M | $697M | $699.3M | $636.3M |
| Accounts Receivable, after Allowance for Credit Loss | $247.5M | $300M | $237.9M | $221.2M | $357.9M | $543.2M | $291.8M | $572.8M |
| Equity method investments (Note 11) | $348.7M | $357.9M | $356.3M | $420.1M | $413.2M | $415.8M | $459.6M | $475.1M |
| Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Securities | $118.1M | $191.1M | $131.8M | $144.9M | $239.2M | $494.8M | $400.2M | $427.6M |
| Loans Receivable Fair Value Disclosure | $135.6M | $192.3M | $100.9M | $115.1M | $268M | $469.8M | $205.2M | $426M |
| Total Collateral Pledged to Third Parties | — | $100.3M | $6.8M | $42.6M | $121.9M | $388.8M | $289.2M | $320.6M |
| Accrual For Potential Clawback Of Previously Distributed Interest | $119.1M | $148.3M | $168.1M | $134.4M | $162.9M | $209.2M | $273.5M | $311.2M |
| Cash Held By Funds And Other | $219.4M | $180.5M | $204.1M | $1B | $314M | $401.6M | $223.4M | $262M |
| Due To Non Consolidated Entities | $107.7M | $158.2M | $208.5M | $769.9M | $225.9M | $221.1M | $238M | $195.2M |
| Derivative, gross, assets | $219.4M | $155.8M | $193.6M | $187.3M | $145.9M | $140.4M | $147.3M | $170.7M |
| Freestanding Derivatives | $189M | $141.9M | $180.3M | $175.1M | $125.7M | $123.8M | $134.6M | $156.6M |
| Due To Certain Non Controlling Interest Holders And Company Employees | $208.3M | $274.3M | $255.1M | $196.3M | $69.9M | $92M | $104M | $109.1M |
| Other Assets, Miscellaneous | $28.9M | $27.3M | $68.5M | $59.2M | $57.5M | $59.6M | $186.6M | $55.2M |
| Remainder of 2026 | — | — | — | $35.9M | $35.9M | $36M | — | $36.1M |
| Remainder of Fiscal Year 2024 | — | — | — | $35.9M | $35.9M | $36M | — | $36.1M |
| Deferred Tax Assets, Valuation Allowance | — | — | $21.2M | — | — | — | $35.4M | $35.2M |
| Excess Deficiency Of Fair Value Over Uncollected Principal Balance On Financial Instruments | $59M | $56M | $55.6M | $55.9M | $58.6M | $56.5M | $43.2M | $35.1M |
| 2027 | $35.9M | $35.9M | $35.9M | $35.7M | $35.7M | $36.1M | $36.1M | $35.1M |
| Units Expected To Vest Deferred Restricted Common Units | 38.6M | 30.7M | 30.8M | 28.1M | 34.6M | 27.2M | 25.2M | 25M |
| Fair Value Concentration Of Risk Investments | $27.8M | $33M | $28.4M | $26.8M | $35.9M | $33.7M | $24.7M | $21.8M |
| 2028 | $35.9M | $35.9M | $35.7M | $34.6K | $34.6K | $35.1M | $35.1M | $18.2M |
| 2029 | $35.7M | $35.7M | $34.6M | $17.8K | $17.8K | $18.2M | $18.2M | $17M |
| 2030 | $34.6M | $34.6M | $17.8M | $16.6K | $16.6K | $17M | $17M | $14M |
| Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Amount Offset Against Collateral | $188K | $983K | $12.5M | $848K | $25.4M | $718K | $16.4M | $6.6M |
| Financial Liabilities Fair Value Disclosure | $131.8M | $109.2M | $87.9M | $804K | $292K | $709K | $181K | $2M |
| Units Expected To Vest For Phantom Units | 86K | 64.2K | 59.8K | 55.6K | 72.3K | 56.3K | 56.8K | 52.1K |
| Derivative Liability Securities Sold Under Agreements To Resell Securities Loaned Collateral Right To Reclaim Cash | $13K | $50K | $10K | $51K | $76K | $30K | $32K | $27K |
| After Tax Net Present Value Discount Rate Assumption For Tax Receivable Agreements | 15.0% | 15.0% | 15.0% | 15.0% | 15.0% | 15.0% | 15.0% | 15.0% |
| Common stock, par value (in dollars per share) | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
| Consolidated Entities Net Assets Restricted As To Payment Of Cash Dividends And Advances To Partnership | — | — | $92.8M | — | — | — | $116.2M | — |
| Credit Available | — | — | $15.8B | — | — | — | $16.9B | — |
| Deferred Tax Liabilities, Gross | — | — | $14.2M | — | — | — | $16.5M | — |
| Deferred Tax Asset Net | — | — | $2B | — | — | — | $2B | — |
| Deferred Tax Assets | — | — | $2B | — | — | — | $2.1B | — |
| Deferred Tax Assets, Gross | — | — | $2B | — | — | — | $2.1B | — |
| Deferred Tax Assets Unrealized Losses On Availablefor Sale Securities Gross | — | — | $1.7B | — | — | — | $1.9B | — |
| Deferred Tax Liabilities, Other | — | — | $2M | — | — | — | $1.7M | — |
| Deferred Tax Liabilities Unrealized Gains From Investments | — | — | $12.3M | — | — | — | $14.8M | — |
| Equity Method Investment Summarized Financial Information Other Assets | — | — | $31.9B | — | — | — | $31.2B | — |
| Equity Method Investment Summarized Financial Information Other Liabilities | — | — | $15.9B | — | — | — | $19.6B | — |
| Equity Method Investment Summarized Financial Information Debt | — | — | $189.3B | — | — | — | $188.8B | — |
| Equity Method Investment Summarized Financial Information Investments | — | — | $651B | — | — | — | $719.6B | — |
| 2031 | $17.8M | $17.8M | $16.6M | — | — | — | $14M | — |
| Leases With Security | — | — | $14.1M | — | — | — | $15.1M | — |
| Lessee Operating Lease Discount Rate | — | — | — | — | — | — | 3.5% | — |
| Lessee Operating Lease Liability Payments Due | — | — | $1.1B | — | — | — | $879.5M | — |
| Lessee Operating Lease Liability Undiscounted Excess Amount | — | — | $117.6M | — | — | — | $18.5M | — |
| Amount outstanding under the credit facility | — | — | $11.5B | — | — | — | $12.6B | — |
| Percentage Of Long Lived Assets | — | — | 10.0% | — | — | — | 10.0% | — |
| Preferred Stock, Par or Stated Value Per Share | — | — | $0.00 | — | — | — | $0.00 | — |
| Preferred Stock, Shares Authorized | — | — | 10B | — | — | — | 10B | — |
| Units Of Partnership Interest Amount | — | — | 175M | — | — | — | 176.6M | — |
| Unrecognized tax benefits | — | — | $251.5M | — | — | — | $315.6M | — |
| Unrecognized Tax Benefits And Interest Accrued Reversal | — | — | $29.1M | — | — | — | $33.9M | — |
