Amount of financing receivable modified as troubled debt restructuring.

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BANK LOANS, NET, Summary of Impaired Loans (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Sep. 30, 2019
Gross recorded investment
Gross recorded investment, impaired loans with allowance for loan losses	$ 9		$ 9		$ 30
Gross recorded investment, impaired loans without allowance for loan losses	18		18		19
Gross recorded investment	27		27		49
Unpaid principal balance
Unpaid principal balance, impaired loans with allowance for loan losses	11		11		33
Unpaid principal balance, impaired loans without allowance for loan losses	28		28		30
Unpaid principal balance	39		39		63
Impaired loans with allowance for loan losses, allowance for losses	2		2		7
Loan and Lease Receivables, Impaired
Average impaired loan balance	27	$ 60	37	$ 48
C&I loans
Gross recorded investment
Gross recorded investment, impaired loans with allowance for loan losses	1		1		19
Unpaid principal balance
Unpaid principal balance, impaired loans with allowance for loan losses	1		1		20
Impaired loans with allowance for loan losses, allowance for losses	1		1		6
Loan and Lease Receivables, Impaired
Impaired loan, troubled debt restructurings					19
Average impaired loan balance	2	26	10	19
CRE loans
Gross recorded investment
Gross recorded investment, impaired loans without allowance for loan losses	7		7		8
Unpaid principal balance
Unpaid principal balance, impaired loans without allowance for loan losses	12		12		13
Loan and Lease Receivables, Impaired
Impaired loan, troubled debt restructurings	6		6		8
Average impaired loan balance	6	10	7	4
Residential - first mortgage loans
Gross recorded investment
Gross recorded investment, impaired loans with allowance for loan losses	8		8		11
Gross recorded investment, impaired loans without allowance for loan losses	11		11		11
Unpaid principal balance
Unpaid principal balance, impaired loans with allowance for loan losses	10		10		13
Unpaid principal balance, impaired loans without allowance for loan losses	16		16		17
Impaired loans with allowance for loan losses, allowance for losses	1		1		1
Loan and Lease Receivables, Impaired
Impaired loan, troubled debt restructurings	16		16		$ 18
Average impaired loan balance	$ 19	$ 24	$ 20	$ 25