Average Expected Duration, Available For Sale Securities

No definition available.

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- Definition

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454

+ Details

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Period Type:	instant

- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
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-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121558606&loc=SL82898722-210454

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-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=121553693&loc=d3e26610-111562

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-Section 50
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-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563

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- Definition

Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without an allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455

+ Details

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- Definition

Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
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-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563

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-Publisher FASB
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-Section 50
-Paragraph 4
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-URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455

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- Definition

Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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AVAILABLE FOR SALE SECURITIES, Narrative (Details)	12 Months Ended
AVAILABLE FOR SALE SECURITIES, Narrative (Details)	Sep. 30, 2020 USD ($) position	Sep. 30, 2019 USD ($)	Sep. 30, 2018 USD ($)
Debt Securities, Available-for-sale [Line Items]
Average expected duration, available for sale securities	3 years
Fair value	$ 7,650,000,000	$ 3,093,000,000
Proceeds from sales of available-for-sale securities	222,000,000	0	$ 45,000,000
Agency MBS and agency CMOs
Debt Securities, Available-for-sale [Line Items]
Proceeds from sales of available-for-sale securities	222,000,000	0	$ 0
Federal National Mortgage Association (FNMA)
Debt Securities, Available-for-sale [Line Items]
Amortized cost basis	4,840,000,000
Fair value	4,920,000,000
Federal Home Loan Mortgage Corporation (FHLMC)
Debt Securities, Available-for-sale [Line Items]
Amortized cost basis	2,400,000,000
Fair value	2,430,000,000
RJ Bank
Debt Securities, Available-for-sale [Line Items]
Amortized cost basis	7,531,000,000	3,065,000,000
Fair value	$ 7,650,000,000	$ 3,093,000,000
RJ Bank \| Agency MBS and agency CMOs
Debt Securities, Available-for-sale [Line Items]
Number of available-for-sale investment positions determined to be in an unrealized loss position \| position	83
Number of available-for-sale investment positions determined to be in an unrealized loss position continuously for less than 12 months \| position	83