| USD ($) $ in Millions | Jun 30, 2026 | Mar 31, 2026 | Sep 30, 2025 | Jun 30, 2025 | Mar 31, 2025 | Sep 30, 2024 |
|---|---|---|---|---|---|---|
Operating activities | ||||||
Net income | $ 2,042 | $ 2,326 | $ 1,527 | $ 1,665 | $ 1,515 | $ 1,691 |
Adjustments to reconcile net income to net cash provided by/(used in) operating activities: | ||||||
Depreciation and amortization | 385 | 380 | 346 | 217 | 194 | - |
Noncash lease expense | 43 | 43 | 35 | 35 | 34 | - |
Stock-based compensation | 302 | 319 | 419 | 226 | 241 | - |
Deferred income tax expense (benefit) | (78) | 60 | (160) | (93) | 15 | - |
Change in fair value of contingent consideration | 11 | (549) | 93 | 76 | 96 | - |
Other investment gains | (40) | (22) | 73 | (397) | (36) | - |
Net (gains) losses within CIPs | (139) | (23) | (236) | (170) | (13) | - |
Net (purchases) proceeds within CIPs | (1,438) | (1,669) | (1,360) | (886) | (1,098) | - |
(Earnings) losses from equity method investees | (101) | (46) | 45 | (42) | (51) | - |
Distributions of earnings from equity method investees | 33 | 9 | 8 | 133 | 14 | - |
Changes in operating assets and liabilities: | ||||||
Accounts receivable | (222) | (111) | (379) | (9) | 123 | - |
Investments, trading | (8) | 198 | 61 | 66 | 12 | - |
Other assets | 1,735 | (3,453) | (186) | 974 | (3,454) | - |
Accrued compensation and benefits | 845 | (2,256) | 795 | 608 | (1,794) | - |
Accounts payable and accrued liabilities | (84) | 340 | (203) | 98 | 84 | - |
Other liabilities | (2,059) | 3,474 | 536 | (1,137) | 2,990 | - |
Net cash provided by/(used in) operating activities | 1,227 | (980) | 1,414 | 1,364 | (1,128) | - |
Investing activities | ||||||
Purchases of investments | (440) | (313) | (710) | (136) | (298) | - |
Proceeds from sales and maturities of investments | 114 | 69 | 237 | 79 | 151 | - |
Distributions of capital from equity method investees | 24 | 90 | 35 | 249 | 13 | - |
Net consolidations (deconsolidations) of sponsored investment funds | (49) | (5) | (17) | (67) | (1) | - |
Acquisitions, net of cash acquired | - | (15) | (390) | 17 | (3,123) | - |
Purchases of property and equipment | (109) | (106) | (78) | (89) | (78) | - |
Net cash provided by/(used in) investing activities | (460) | (280) | (923) | 53 | (3,336) | - |
Financing activities | ||||||
Dividends/Subco distributions paid | (933) | (973) | (2,497) | - | - | - |
Repayments of long-term borrowings | - | - | - | (796) | 0 | - |
Proceeds from long-term borrowings | - | - | - | 1,080 | 0 | - |
Cash dividends paid | - | - | - | (808) | (838) | - |
Proceeds from stock options exercised | 14 | 74 | 55 | 47 | 51 | - |
Shares/Subco Units repurchased | (461) | (810) | (1,437) | - | - | - |
Repurchases of common stock | - | - | - | (396) | (657) | - |
Net proceeds from (repayments of) borrowings by CIPs | (61) | 193 | (15) | (5) | (24) | - |
Net subscriptions received/(redemptions/distributions paid) from noncontrolling interest holders | 1,318 | 1,218 | 1,284 | 905 | 811 | - |
Other financing activities | 6 | (6) | 7 | (1) | (4) | - |
Net cash provided by/(used in) financing activities | (117) | (304) | 96 | 26 | (661) | - |
Effect of exchange rate changes on cash, cash equivalents and restricted cash | 1 | (63) | (81) | 288 | 110 | - |
Net increase/(decrease) in cash, cash equivalents and restricted cash | 651 | (1,627) | 506 | 1,731 | (5,015) | - |
Supplemental schedule of noncash investing and financing transactions: | ||||||
Issuance of common shares related to employee stock transactions | 49 | 818 | 77 | 42 | 0 | - |
Issuance of Subco Units/common shares in connection with acquisitions | - | - | 8,715 | - | - | - |
Increase (decrease) in noncontrolling interests due to net consolidation (deconsolidation) of sponsored investment funds | (1,093) | (248) | (447) | (670) | (522) | - |
Established contingent consideration liabilities in connection with acquisitions | - | - | $ 3,413 | - | - | - |