Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Before Stock Conversions

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Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Share Based Compensation

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Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Stock Conversions

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Business Combination, Consideration Transferred, Fair Value Of Note Receivable Converted

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Business Combination, Equity Interests Issued And Issuable

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Derivative Assets

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- Definition

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Financing Receivables

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- Definition

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Derivative Liabilities

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- Definition

Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Liabilities, Other

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- Definition

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-Term Debt, Other Borrowings

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Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Assets

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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- Definition

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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Amount of assets acquired at the acquisition date.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- Definition

Amount of investments in debt and equity securities, including, but not limited to, held-to-maturity, trading and available-for-sale expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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- Definition

Amount of deferred tax asset attributable to deductible temporary differences and carryforwards acquired at the acquisition date.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount of other assets expected to be realized or consumed after one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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Price of a single share of a number of saleable stocks of a company.

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ACQUISITIONS, TriState - Purchase Price, Fair Value Estimates of Assets Acquired and Liabilities Assumed, and Resulting Goodwill (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	Jun. 01, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Fair value of common stock issued:
Restricted stock awards issued as consideration for TriState Capital acquisition		$ 28	$ 0	$ 0
Fair value of liabilities assumed:
Goodwill		1,422	660	466
Common stock
Fair value of common stock issued:
Total fair value of common stock issued		778	0	0
Preferred stock
Fair value of common stock issued:
Total fair value of common stock issued		$ 120	$ 0	$ 0
TriState Capital
Fair value of common stock issued:
Other common stock consideration	$ 10
Total fair value of common stock issued	778
Cash consideration	359
Effective settlement of the Note	123
Restricted stock awards issued as consideration for TriState Capital acquisition	28
Total purchase price	1,408
Fair value of assets acquired:
Cash and cash equivalents	457
Available-for-sale securities	1,524
Derivative assets	51
Bank loans, net	11,549
Deferred income taxes, net	26
Identifiable intangible assets	197
All other assets acquired	226
All other assets acquired	59
Total assets acquired	14,089
Fair value of liabilities assumed:
Bank deposits	12,593
Derivative liabilities	125
Other borrowings	375
All other liabilities assumed	117
Total liabilities assumed	13,210
Fair value of net identifiable assets acquired	879
Goodwill	$ 529
TriState Capital \| Common stock
Fair value of common stock issued:
Shares issued (in shares)	7,861,189
Share price (in dollars per share)	$ 97.74
Stock issued	$ 768
TriState Capital \| Preferred stock
Fair value of common stock issued:
Total fair value of common stock issued	120
TriState Capital \| TriState Capital Common Stock
Fair value of common stock issued:
Cash consideration	$ 189
Fair value of liabilities assumed:
Share price (in dollars per share)	$ 6.00
TriState Capital \| TriState Series C Convertible Preferred Stock
Fair value of common stock issued:
Cash consideration	$ 154
Fair value of liabilities assumed:
Share price (in dollars per share)	$ 30