BANK DEPOSITS (Tables)

6 Months Ended

Mar. 31, 2023

Deposits [Abstract]

Summary of Bank Deposits

The following table presents a summary of bank deposits, as well as the weighted-average interest rates on such deposits. The calculation of the weighted-average rates was based on the actual deposit balances and rates at each respective period end.

	March 31, 2023				September 30, 2022
$ in millions	Balance		Weighted-average rate		Balance		Weighted-average rate
Money market and savings accounts	$	43,136	1.24	%	$	44,446	1.01	%
Interest-bearing demand deposits	7,809		4.45	%	5,286		2.77	%
Certificates of deposit	2,656		4.15	%	999		1.85	%
Non-interest-bearing demand deposits	628		—		626		—
Total bank deposits	$	54,229	1.86	%	$	51,357	1.21	%

Bank Deposits by Insured and Uninsured

The following table details the estimated amount of total bank deposits that are FDIC-insured, as well as the estimated amount of total bank deposits that exceeded the FDIC insurance limit at each respective period.

$ in millions	March 31, 2023			September 30, 2022
FDIC-insured bank deposits	$	47,475		$	43,520
Bank deposits exceeding FDIC insurance limit	6,754			7,837
Total bank deposits	$	54,229		$	51,357
FDIC-insured bank deposits as a % of total bank deposits	88		%	85		%

Scheduled Maturities of Certificates of Deposit

The following table sets forth the estimated amount of certificates of deposit that exceeded the FDIC insurance limit by time remaining until maturity as of March 31, 2023.

$ in millions	March 31, 2023
Three months or less	$	38
Over three through six months	23
Over six through twelve months	29
Over twelve months	13
Total estimated certificates of deposit that exceeded the FDIC insurance limit	$	103

Interest Expense on Deposits

Interest expense on deposits, excluding interest expense related to affiliated deposits, is summarized in the following table.

	Three months ended March 31,				Six months ended March 31,
$ in millions	2023		2022		2023		2022
Money market and savings accounts	$	128	$	1	$	245	$	2
Interest-bearing demand deposits	62		1		109		2
Certificates of deposit	16		3		24		7
Total interest expense on deposits	$	206	$	5	$	378	$	11