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Fair Value Accounting (Carrying and Estimated Fair Values of Financial Instruments Carried on Balance Sheet) (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Financial assets |  |
Investment securities available for sale | $ 9,587,508 | $ 10,918,329
Loans held for sale | 696,450 | 750,642
Loans, net | 42,150,099 | 38,884,361
Financial liabilities |  |
Non-interest-bearing deposits | 16,359,551 | 16,392,653
Total deposits | 47,697,564 | 49,427,276
Federal funds purchased and securities sold under repurchase agreements | 240,210 | 264,133
Long-term debt | 4,434,327 | 1,204,229
Level 1 |  |
Financial assets |  |
Total cash, cash equivalents, and restricted cash | 1,867,804 | 3,009,853
Trading securities | 0 | 0
Investment securities available for sale | 467,756 | 117,838
Loans held for sale | 0 | 0
Other investments | 0 | 0
Mutual funds and mutual funds held in rabbi trusts | 40,151 | 43,657
Loans, net | 0 | 0
GGL/SBA loans servicing asset | 0 | 0
FRB and FHLB stock | 0 | 0
Derivative assets | 0 | 0
Financial liabilities |  |
Non-interest-bearing deposits | 0 | 0
Non-time interest-bearing deposits | 0 | 0
Time deposits | 0 | 0
Total deposits | 0 | 0
Federal funds purchased and securities sold under repurchase agreements | 240,210 | 264,133
Trading liability for short positions | 16,236 | 0
Short-term FHLB advances | 0 |
Long-term debt | 0 | 0
Mutual funds held in rabbi trusts | 25,486 | 27,205
Derivative liabilities | 0 | 0
Level 2 |  |
Financial assets |  |
Total cash, cash equivalents, and restricted cash | 0 | 0
Trading securities | 25,481 | 8,391
Investment securities available for sale | 9,119,752 | 10,800,491
Loans held for sale | 56,517 | 108,198
Other investments | 0 | 0
Mutual funds and mutual funds held in rabbi trusts | 0 | 0
Loans, net | 0 | 0
GGL/SBA loans servicing asset | 0 | 0
FRB and FHLB stock | 300,979 | 159,941
Derivative assets | 82,087 | 191,708
Financial liabilities |  |
Non-interest-bearing deposits | 16,359,551 | 16,392,653
Non-time interest-bearing deposits | 26,457,928 | 28,917,148
Time deposits | 4,832,971 | 4,125,673
Total deposits | 47,650,450 | 49,435,474
Federal funds purchased and securities sold under repurchase agreements | 0 | 0
Trading liability for short positions | 296 | 200
Short-term FHLB advances | 599,700 |
Long-term debt | 4,454,897 | 1,243,147
Mutual funds held in rabbi trusts | 0 | 0
Derivative liabilities | 338,970 | 95,067
Level 3 |  |
Financial assets |  |
Total cash, cash equivalents, and restricted cash | 0 | 0
Trading securities | 0 | 0
Investment securities available for sale | 0 | 0
Loans held for sale | 637,456 | 641,782
Other investments | 11,212 | 12,185
Mutual funds and mutual funds held in rabbi trusts | 0 | 0
Loans, net | 40,952,610 | 39,118,275
GGL/SBA loans servicing asset | 2,798 | 3,233
FRB and FHLB stock |  | 0
Derivative assets | 0 | 0
Financial liabilities |  |
Non-interest-bearing deposits | 0 | 0
Non-time interest-bearing deposits | 0 | 0
Time deposits | 0 | 0
Total deposits | 0 | 0
Federal funds purchased and securities sold under repurchase agreements | 0 | 0
Trading liability for short positions | 0 | 0
Short-term FHLB advances | 0 |
Long-term debt | 0 | 0
Mutual funds held in rabbi trusts | 0 | 0
Derivative liabilities | 1,184 | 3,535
Carrying Value |  |
Financial assets |  |
Total cash, cash equivalents, and restricted cash | 1,867,804 | 3,009,853
Trading securities | 25,481 | 8,391
Investment securities available for sale | 9,587,508 | 10,918,329
Loans held for sale |  | 750,642
Other investments | 11,212 | 12,185
Mutual funds and mutual funds held in rabbi trusts | 40,151 | 43,657
Loans, net | 42,150,099 | 38,884,361
GGL/SBA loans servicing asset | 2,798 | 3,233
FRB and FHLB stock | 300,979 | 159,941
Derivative assets | 82,087 | 191,708
Financial liabilities |  |
Non-interest-bearing deposits | 16,359,551 | 16,392,653
Non-time interest-bearing deposits | 26,457,928 | 28,917,148
Time deposits | 4,880,085 | 4,117,475
Total deposits | 47,697,564 | 49,427,276
Federal funds purchased and securities sold under repurchase agreements | 240,210 | 264,133
Trading liability for short positions | 16,532 | 200
Short-term FHLB advances | 599,700 |
Long-term debt | 4,434,327 | 1,204,229
Mutual funds held in rabbi trusts | 25,486 | 27,205
Derivative liabilities | 340,154 | 98,602
Fair Value |  |
Financial assets |  |
Total cash, cash equivalents, and restricted cash | 1,867,804 | 3,009,853
Trading securities | 25,481 | 8,391
Investment securities available for sale | 9,587,508 | 10,918,329
Loans held for sale | 693,973 | 749,980
Other investments | 11,212 | 12,185
Mutual funds and mutual funds held in rabbi trusts | 40,151 | 43,657
Loans, net | 40,952,610 | 39,118,275
GGL/SBA loans servicing asset | 2,798 | 3,233
FRB and FHLB stock | 300,979 | 159,941
Derivative assets | 82,087 | 191,708
Financial liabilities |  |
Non-interest-bearing deposits | 16,359,551 | 16,392,653
Non-time interest-bearing deposits | 26,457,928 | 28,917,148
Time deposits | 4,832,971 | 4,125,673
Total deposits | 47,650,450 | 49,435,474
Federal funds purchased and securities sold under repurchase agreements | 240,210 | 264,133
Trading liability for short positions | 16,532 | 200
Short-term FHLB advances | 599,700 |
Long-term debt | 4,454,897 | 1,243,147
Mutual funds held in rabbi trusts | 25,486 | 27,205
Derivative liabilities | $ 340,154 | $ 98,602

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