| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 |
| | 10-Q | 10-Q | 8-K | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| OPERATING ACTIVITIES | | | | | | | | |
| Net income | 682.0 | 9,518.0 | | 255.0 | 271.0 | 122.8 | 124.1 | 153.0 |
| |
| Adjustments to reconcile net income to cash provided by operating activities: | | | | | | | | |
| Provision for credit losses | 151.0 | 783.0 | | 42.0 | 464.0 | -5.3 | -1.1 | -20.0 |
| Deferred tax (benefit) expense | -335.0 | -69.0 | | 75.0 | -61.0 | -17.3 | -4.2 | 4.0 |
| Depreciation, amortization, and accretion, net | -34.0 | 124.0 | | 149.0 | 114.0 | 46.3 | 31.4 | 33.0 |
| Realized loss on sale of investment securities available for sale, net | | 14.0 | | | | | | |
| Fair value adjustment on marketable equity securities, net | 10.0 | 9.0 | | 6.0 | -3.0 | -34.0 | | -28.0 |
| Loss (gain) on sale of loans, net | 2.0 | -1.0 | | -3.0 | -3.0 | -6.2 | -7.0 | -11.0 |
| Gain on sale of operating lease equipment, net | -4.0 | -4.0 | | -5.0 | -6.0 | | | |
| Gain on sale of premises and equipment, net | | | | -5.0 | 1.0 | | | |
| Gain on other real estate owned, net | -2.0 | | | -4.0 | -2.0 | 2.0 | -1.0 | -1.0 |
| Gain on acquisition | -55.0 | -9,824.0 | | | -431.0 | | | |
| Gain on extinguishment of debt | | | | | -6.0 | | | |
| Proceeds from sale of loans held for sale | 160.0 | 67.0 | | 138.0 | 248.0 | 227.8 | 245.8 | 562.0 |
| Net change in other assets | 416.0 | -486.0 | | 15.0 | 343.0 | -747.2 | -4.8 | -815.0 |
| Net change in other liabilities | 73.0 | -347.0 | | 107.0 | -118.0 | 12.7 | 15.0 | 15.0 |
| Net cash provided by operating activities | 916.0 | -362.0 | | 654.0 | 577.0 | 177.8 | 136.3 | -691.0 |
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| CASH FLOWS FROM INVESTING ACTIVITIES | | | | | | | | |
| Net decrease in interest-earning deposits at banks | 1,110.0 | | | 5,514.0 | | | | |
| Purchases of investment securities available for sale | -2,970.0 | -125.0 | | -474.0 | -810.0 | -2,754.8 | -665.9 | -1,218.0 |
| Proceeds from maturities of investment securities available for sale | 259.0 | 227.0 | | 346.0 | 330.0 | 486.7 | 397.8 | 491.0 |
| Proceeds from sales of investment securities available for sale | | 1.0 | | | | 0.1 | 288.7 | 726.0 |
| Purchases of investment securities held to maturity | -1.0 | -212.0 | | | | -201.6 | -187.4 | -805.0 |
| Net increase in securities purchased under agreements resell | -298.0 | | | | | | | |
| Net decrease (increase) in loans | 5,224.0 | 1,060.0 | | -2,260.0 | 107.0 | 97.8 | 325.2 | 506.0 |
| Proceeds from sales of loans | 150.0 | 113.0 | | 63.0 | 53.0 | | | |
| Net decrease (increase) in credit balances of factoring clients | 72.0 | | | -463.0 | | | | |
| Proceeds from sales of operating lease equipment | 43.0 | 33.0 | | 21.0 | 19.0 | | | |
| Purchases of premises and equipment | -84.0 | -44.0 | | -24.0 | -15.0 | -34.5 | -21.2 | -26.0 |
| Proceeds from sales of premises and equipment | | | | 12.0 | | -0.2 | 0.0 | |
| Proceeds from sales of other real estate owned | 7.0 | 3.0 | | 11.0 | 11.0 | | | 11.0 |
| Cash acquired, net of cash paid as consideration for acquisition | 879.0 | | | 134.0 | | | | |
| Net cash provided by investing activities | 3,913.0 | 2,628.0 | | 497.0 | 2,195.0 | -1,409.2 | -1,806.1 | -396.0 |
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| CASH FLOWS FROM FINANCING ACTIVITIES | | | | | | | | |
| Net increase (decrease) in time deposits | 3,342.0 | 2,124.0 | | -853.0 | -823.0 | -406.0 | | |
| Net decrease in demand and other interest-bearing deposits | -9,780.0 | | | -110.0 | | | | |
| Repayment of short-term borrowings | -500.0 | -1,750.0 | | | | | | |
| Repayment of long-term borrowings | -9,552.0 | -1,021.0 | | -511.0 | -3,031.0 | -54.0 | | -42.0 |
| Proceeds from issuance of long-term borrowings | 3,490.0 | 6,500.0 | | 1,651.0 | 1.0 | | | |
| Cash dividends paid | -26.0 | -26.0 | | -24.0 | -14.0 | -9.6 | -9.3 | -14.0 |
| Net cash used in financing activities | -5,511.0 | -1,186.0 | | -1,091.0 | -2,587.0 | 1,232.0 | 1,611.9 | 1,072.0 |
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| SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION | | | | | | | | |
| Interest | 1,001.0 | 366.0 | | 63.0 | 146.0 | 13.1 | 17.2 | 12.0 |
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| Significant non-cash investing and financing activities: | | | | | | | | |
| Transfers of loans to other real estate | 20.0 | | | 1.0 | 1.0 | | | 3.0 |
| Dividends declared but not paid | | | | | 1.0 | | | -5.0 |
| Transfer of assets from held for investment to held for sale | 146.0 | 115.0 | | 30.0 | 25.0 | | | 13.0 |
| Transfer of assets from held for sale to held for investment | 10.0 | 1.0 | | 9.0 | 12.0 | | | 2.0 |
| Commitments extended during the period on affordable housing investment credits | 37.0 | 3.0 | | 20.0 | | | | 11.0 |