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Derivatives - Derivatives Not Designated as Hedging Instruments (Details) MMBTU in Thousands, Boe in Thousands, $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 USD ($) MMBTU Boe | Dec. 31, 2022 USD ($) MMBTU Boe
Derivative [Line Items] |  |
Gross amounts recognized | $ 862,316 | $ 755,328
Derivative liabilities - Fair value | $ 948,387 | $ 887,264
Crude oil |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | Boe | 20,672 | 12,005
Natural gas |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | MMBTU | 363,020 | 247,704
Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | $ 11,383,158 | $ 10,158,784
Gross amounts recognized | 33,979 | 27,146
Derivative liabilities - Fair value | 662,616 | 592,060
Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 11,277,951 | 9,756,521
Gross amounts recognized | 685,488 | 447,201
Derivative liabilities - Fair value | 30,403 | 16,886
Interest rate contracts | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 8,684,404 | 8,420,422
Gross amounts recognized | 691 | 1,438
Derivative liabilities - Fair value | 614,445 | 561,547
Interest rate contracts | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 8,771,698 | 8,511,992
Gross amounts recognized | 622,108 | 425,390
Derivative liabilities - Fair value | 1,475 | 3,282
Interest rate contracts | Swaps | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 6,890,450 | 6,656,491
Gross amounts recognized | 691 | 1,438
Derivative liabilities - Fair value | 584,962 | 521,719
Interest rate contracts | Swaps | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 6,916,364 | 6,683,828
Gross amounts recognized | 592,177 | 384,201
Derivative liabilities - Fair value | 1,119 | 2,047
Interest rate contracts | Written options | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 1,486,958 | 1,548,158
Gross amounts recognized | 0 | 0
Derivative liabilities - Fair value | 21,864 | 30,904
Interest rate contracts | Written options | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 30,690 | 32,117
Gross amounts recognized | 0 | 0
Derivative liabilities - Fair value | 356 | 1,235
Interest rate contracts | Collars and corridors | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 306,996 | 215,773
Gross amounts recognized | 0 | 0
Derivative liabilities - Fair value | 7,619 | 8,924
Interest rate contracts | Collars and corridors | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 306,996 | 215,772
Gross amounts recognized | 7,646 | 8,956
Derivative liabilities - Fair value | 0 | 0
Interest rate contracts | Purchased options | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 1,517,648 | 1,580,275
Gross amounts recognized | 22,285 | 32,233
Derivative liabilities - Fair value | 0 | 0
Foreign exchange contracts | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 2,698,754 | 1,738,362
Gross amounts recognized | 33,288 | 25,708
Derivative liabilities - Fair value | 48,171 | 30,513
Foreign exchange contracts | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 2,506,253 | 1,244,529
Gross amounts recognized | 63,380 | 21,811
Derivative liabilities - Fair value | 28,928 | 13,604
Foreign exchange contracts | Swaps | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 2,494,517 | 623,143
Gross amounts recognized | 16,282 | 6,629
Derivative liabilities - Fair value | 23,687 | 12,178
Foreign exchange contracts | Swaps | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 1,303,755 | 1,044,900
Gross amounts recognized | 62,928 | 18,516
Derivative liabilities - Fair value | 22,985 | 11,447
Foreign exchange contracts | Forwards and spot | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 62,237 | 993,588
Gross amounts recognized | 11,376 | 17,009
Derivative liabilities - Fair value | 24,484 | 18,090
Foreign exchange contracts | Forwards and spot | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 1,060,498 | 77,998
Gross amounts recognized | 452 | 3,050
Derivative liabilities - Fair value | 313 | 87
Foreign exchange contracts | Other | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 142,000 | 121,631
Gross amounts recognized | 5,630 | 2,070
Derivative liabilities - Fair value | 0 | 245
Foreign exchange contracts | Other | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 142,000 | 121,631
Gross amounts recognized | 0 | 245
Derivative liabilities - Fair value | 5,630 | 2,070
Commodity contracts | Customer-related positions: |  |
Derivative [Line Items] |  |
Gross amounts recognized | 85,388 | 171,082
Derivative liabilities - Fair value | $ 68,964 | $ 100,333
Commodity contracts | Customer-related positions: | Crude oil |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | Boe | 10,320 | 5,476
Gross amounts recognized | $ 52,095 | $ 56,551
Derivative liabilities - Fair value | $ 1,836 | $ 8,808
Commodity contracts | Customer-related positions: | Natural gas |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | MMBTU | 182,658 | 124,662
Gross amounts recognized | $ 33,293 | $ 114,531
Derivative liabilities - Fair value | 67,128 | 91,525
Commodity contracts | Other economic hedges: |  |
Derivative [Line Items] |  |
Gross amounts recognized | 52,112 | 90,531
Derivative liabilities - Fair value | $ 74,891 | $ 158,275
Commodity contracts | Other economic hedges: | Crude oil |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | Boe | 10,352 | 6,529
Gross amounts recognized | $ 2,165 | $ 8,313
Derivative liabilities - Fair value | $ 43,184 | $ 49,432
Commodity contracts | Other economic hedges: | Natural gas |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | MMBTU | 180,363 | 123,042
Gross amounts recognized | $ 49,947 | $ 82,218
Derivative liabilities - Fair value | $ 31,707 | $ 108,843
Commodity contracts | Swaps | Customer-related positions: | Crude oil |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | Boe | 3,958 | 2,465
Gross amounts recognized | $ 27,543 | $ 39,955
Derivative liabilities - Fair value | $ 1,717 | $ 6,178
Commodity contracts | Swaps | Customer-related positions: | Natural gas |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | MMBTU | 129,940 | 92,590
Gross amounts recognized | $ 32,428 | $ 112,314
Derivative liabilities - Fair value | $ 55,387 | $ 73,208
Commodity contracts | Swaps | Other economic hedges: | Crude oil |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | Boe | 3,990 | 2,587
Gross amounts recognized | $ 2,165 | $ 6,935
Derivative liabilities - Fair value | $ 24,403 | $ 36,060
Commodity contracts | Swaps | Other economic hedges: | Natural gas |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | MMBTU | 129,405 | 91,900
Gross amounts recognized | $ 42,804 | $ 69,767
Derivative liabilities - Fair value | $ 31,289 | $ 106,883
Commodity contracts | Written options | Customer-related positions: | Crude oil |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | Boe | 0 | 0
Gross amounts recognized | $ 0 | $ 558
Derivative liabilities - Fair value | $ 0 | $ 0
Commodity contracts | Written options | Customer-related positions: | Natural gas |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | MMBTU | 1,955 | 0
Gross amounts recognized | $ 0 | $ 0
Derivative liabilities - Fair value | $ 206 | $ 0
Commodity contracts | Purchased options | Other economic hedges: | Crude oil |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | Boe | 0 | 0
Gross amounts recognized | $ 0 | $ 0
Derivative liabilities - Fair value | $ 0 | $ 516
Commodity contracts | Purchased options | Other economic hedges: | Natural gas |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | MMBTU | 1,955 | 0
Gross amounts recognized | $ 206 | $ 0
Derivative liabilities - Fair value | $ 0 | $ 0
Commodity contracts | Collars | Customer-related positions: | Crude oil |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | Boe | 6,362 | 3,011
Gross amounts recognized | $ 24,552 | $ 16,038
Derivative liabilities - Fair value | $ 119 | $ 2,630
Commodity contracts | Collars | Customer-related positions: | Natural gas |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | MMBTU | 50,763 | 32,072
Gross amounts recognized | $ 865 | $ 2,217
Derivative liabilities - Fair value | $ 11,535 | $ 18,317
Commodity contracts | Collars | Other economic hedges: | Crude oil |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | Boe | 6,362 | 3,942
Gross amounts recognized | $ 0 | $ 1,378
Derivative liabilities - Fair value | $ 18,781 | $ 12,856
Commodity contracts | Collars | Other economic hedges: | Natural gas |  |
Derivative [Line Items] |  |
Derivative, nonmonetary notional amount, energy measure | MMBTU | 49,003 | 31,142
Gross amounts recognized | $ 6,937 | $ 12,451
Derivative liabilities - Fair value | $ 418 | $ 1,960

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