CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Cash flows from operating activities:
Net income	$ 563	$ 600
Adjustments to reconcile net income to net cash provided by/(used in) operating activities:
Depreciation and amortization	49	47
Deferred income taxes, net	35	35
Premium and discount amortization on available-for-sale securities and bank loans and net unrealized gains/losses on other investments	1	(4)
Provisions for credit losses and legal and regulatory matters, net	2	7
Share-based compensation expense	79	93
Unrealized gains on corporate-owned life insurance policies, net of expenses	(22)	0
Other	16	31
Net change in:
Collateralized agreements, net of collateralized financings	(272)	48
Loans (provided to) financial advisors, net of repayments	(156)	(35)
Brokerage client receivables and other receivables, net	206	331
Trading instruments, net	119	(66)
Derivative instruments, net	(27)	202
Other assets	(54)	18
Brokerage client payables and other payables	5	119
Accrued compensation, commissions and benefits	(659)	(529)
Purchases and originations of loans held for sale, net of proceeds from sales of securitizations and loans held for sale	105	(67)
Net cash provided by/(used in) operating activities	(10)	830
Cash flows from investing activities:
Increase in bank loans, net	(2,137)	(1,294)
Proceeds from sales of loans held for investment	81	62
Purchases of available-for-sale securities	(66)	(208)
Available-for-sale securities maturations, repayments and redemptions	360	506
Proceeds from sales of available-for-sale securities	0	78
Additions to property and equipment	(46)	(41)
Other investing activities, net	(57)	(40)
Net cash used in investing activities	(1,865)	(937)
Cash flows from financing activities:
Increase/(decrease) in bank deposits	1,255	(160)
Repurchases of common stock and share-based awards withheld for payment of withholding tax requirements	(513)	(185)
Dividends on common and preferred stock	(112)	(105)
Exercise of stock options and employee stock purchases	9	10
Proceeds from Federal Home Loan Bank (“FHLB”) advances	250	450
Repayments of FHLB advances	(250)	(450)
Other financing, net	(10)	(7)
Net cash provided by/(used in) financing activities	629	(447)
Currency adjustment:
Effect of exchange rate changes on cash and cash equivalents, including those segregated for regulatory purposes	29	(214)
Net decrease in cash and cash equivalents, including those segregated for regulatory purposes and restricted cash	(1,217)	(768)
Cash and cash equivalents, including those segregated for regulatory purposes and restricted cash at beginning of year	14,787	14,348
Cash and cash equivalents, including those segregated for regulatory purposes and restricted cash at end of period	13,570	13,580
Cash and cash equivalents, including those segregated for regulatory purposes and restricted cash
Cash and cash equivalents	9,890	10,048
Cash and cash equivalents segregated for regulatory purposes and restricted cash	3,680	3,532
Total cash and cash equivalents, including those segregated for regulatory purposes and restricted cash at end of period	13,570	13,580
Supplemental disclosures of cash flow information:
Cash paid for interest	423	499
Cash paid for income taxes, net	19	9
Cash outflows for lease liabilities	34	33
Non-cash right-of-use (“ROU”) assets recorded for new and modified leases	$ 19	$ 33