INTEREST INCOME AND INTEREST EXPENSE (Tables)

9 Months Ended

Jun. 30, 2022

Interest Income (Expense), Net [Abstract]

Interest Income and Interest Expense

The following table details the components of interest income and interest expense.

	Three months ended June 30,				Nine months ended June 30,
$ in millions	2022		2021		2022		2021
Interest income:
Cash and cash equivalents	$	10	$	3	$	16	$	9
Assets segregated for regulatory purposes and restricted cash	28		3		39		11
Available-for-sale securities	37		20		84		64
Brokerage client receivables	24		19		66		56
Bank loans, net	255		150		590		437
All other	20		10		46		31
Total interest income	$	374	$	205	$	841	$	608
Interest expense:
Bank deposits	$	20	$	5	$	31	$	17
Brokerage client payables	3		1		4		3
Other borrowings	6		4		15		14
Senior notes payable	23		25		69		73
All other	8		5		16		8
Total interest expense	$	60	$	40	$	135	$	115
Net interest income	$	314	$	165	$	706	$	493
Bank loan (provision)/benefit for credit losses	(56)		19		(66)		37
Net interest income after bank loan (provision)/benefit for credit losses	$	258	$	184	$	640	$	530