| **NON-INTEREST INCOME AND OTHER EXPENSES (Schedule of Non-Interest Income) (Details) - USD ($) $ in Thousands** | 3 Months Ended | 9 Months Ended |
|-----------------------------------------------------------------------------------------------------------------|----------------|----------------|
||
| **Revenue from Contract with Customer [Abstract]**                                                              |           |           |   |   |
| Consumer and commercial fees                                                                                    | $ 123,834      | $ 133,049      | $ 356,907 | $ 412,566 |
| Lease income                                                                                                    | 742,946        | 735,783        | 2,269,613 | 2,116,503 |
| Mortgage banking income, net                                                                                    | 14,115         | 15,343         | 47,243 | 38,067 |
| BOLI                                                                                                            | 14,855         | 15,338         | 43,764 | 45,769 |
| Capital market revenue                                                                                          | 56,949         | 48,326         | 179,417 | 146,290 |
| Net gain on sale of operating leases                                                                            | 120,387        | 48,490         | 170,484 | 120,980 |
| Asset and wealth management fees                                                                                | 52,984         | 45,020         | 156,575 | 132,224 |
| Loss on sale of non-mortgage loans                                                                              | (56,684)       | (87,399)       | (241,324) | (238,771) |
| Other miscellaneous (loss) / income, net                                                                        | 105,616        | 44,915         | (25,994) | 83,290 |
| Net gain/(loss) on sale of investment securities                                                                | (148)          | 2,267          | 31,646 | 2,646 |
| TOTAL NON-INTEREST INCOME                                                                                       | $ 1,174,854    | $ 1,001,132    | $ 2,988,331 | $ 2,859,564 |

| X                                                                                                                                                                                                                                                   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Capital Markets Revenue (Expense)
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| X                                                                                                                                                                                                                                          |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Mortgage Banking Income, Net
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| X                                                                                                                                                                                                                                                           |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Other Miscellaneous Income (Loss), Net
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies.
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| - Definition
Amount of realized gain (loss) on investment in debt and equity securities.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Income from mortgage banking activities (fees and commissions) and servicing real estate mortgages, credit cards, and other financial assets held by others net of any related impairment of capitalized service costs. Also includes any premiums received in lieu of regular servicing fees on such loans only as earned over the life of the loans.
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| - Definition
The net gain (loss) arising from the lessor's sale of assets held- or available-for-lease under contractual arrangements classified as operating leases.
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| - Definition
The gains (losses) included in earning that represent the difference between the sale price and the carrying value of consumer loans. This element refers to the gain (loss) and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of fees and commissions from banking, advisory, brokerage, and securities underwriting activities. Activities include, but are not limited to, underwriting securities, private placements of securities, investment advisory and management services, merger and acquisition services, sale and servicing of mutual funds, and other related consulting fees.
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of lease income from operating, direct financing, and sales-type leases. Includes, but is not limited to, variable lease payments, interest income, profit (loss) recognized at commencement, and lease payments paid and payable to lessor.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.
+ References
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| - References
No definition available.
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