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Derivatives - Schedule of Derivatives Not Designated as Hedging Instruments (Details) MMBTU in Thousands, Boe in Thousands, $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2024 USD ($) MMBTU Boe | Dec. 31, 2023 USD ($) MMBTU Boe
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 490,588 | $ 610,920
Derivative liabilities - Fair value | 465,842 | 613,314
Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 10,568,989 | 11,362,194
Derivative assets - Fair value | 74,380 | 43,195
Derivative liabilities - Fair value | 284,628 | 419,499
Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 10,758,602 | 11,852,864
Derivative assets - Fair value | 287,531 | 433,969
Derivative liabilities - Fair value | 75,809 | 43,877
Interest rate contracts | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 8,490,879 | 8,681,085
Derivative assets - Fair value | 50,362 | 26,089
Derivative liabilities - Fair value | 276,178 | 394,625
Interest rate contracts | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 8,508,713 | 8,706,824
Derivative assets - Fair value | 277,583 | 397,397
Derivative liabilities - Fair value | 50,608 | 26,187
Interest rate contracts | Swaps | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 6,867,025 | 6,835,822
Derivative assets - Fair value | 49,900 | 25,649
Derivative liabilities - Fair value | 270,699 | 377,388
Interest rate contracts | Swaps | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 6,884,859 | 6,861,561
Derivative assets - Fair value | 272,079 | 380,123
Derivative liabilities - Fair value | 50,132 | 25,731
Interest rate contracts | Written options | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 1,451,899 | 1,522,531
Derivative assets - Fair value | 0 | 0
Derivative liabilities - Fair value | 5,016 | 12,756
Interest rate contracts | Collars and corridors | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 171,955 | 322,732
Derivative assets - Fair value | 462 | 440
Derivative liabilities - Fair value | 463 | 4,481
Interest rate contracts | Collars and corridors | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 171,955 | 322,732
Derivative assets - Fair value | 465 | 4,491
Derivative liabilities - Fair value | 476 | 456
Interest rate contracts | Purchased options | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 1,451,899 | 1,522,531
Derivative assets - Fair value | 5,039 | 12,783
Derivative liabilities - Fair value | 0 | 0
Foreign exchange contracts | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 2,078,110 | 2,681,109
Derivative assets - Fair value | 24,018 | 17,106
Derivative liabilities - Fair value | 8,450 | 24,874
Foreign exchange contracts | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 2,249,889 | 3,146,040
Derivative assets - Fair value | 9,948 | 36,572
Derivative liabilities - Fair value | 25,201 | 17,690
Foreign exchange contracts | Swaps | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 1,213,126 | 1,588,491
Derivative assets - Fair value | 9,345 | 5,801
Derivative liabilities - Fair value | 5,514 | 18,118
Foreign exchange contracts | Swaps | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 2,208,866 | 2,862,037
Derivative assets - Fair value | 9,820 | 36,280
Derivative liabilities - Fair value | 25,110 | 15,757
Foreign exchange contracts | Written options | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 20,000 | 136,000
Derivative assets - Fair value | 0 | 0
Derivative liabilities - Fair value | 31 | 1,839
Foreign exchange contracts | Forwards and spot | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 844,984 | 956,618
Derivative assets - Fair value | 14,642 | 9,466
Derivative liabilities - Fair value | 2,936 | 6,756
Foreign exchange contracts | Forwards and spot | Other economic hedges: |  |
Derivative [Line Items] |  |
Notional amount | 21,023 | 148,003
Derivative assets - Fair value | 128 | 292
Derivative liabilities - Fair value | 60 | 94
Foreign exchange contracts | Purchased options | Customer-related positions: |  |
Derivative [Line Items] |  |
Notional amount | 20,000 | 136,000
Derivative assets - Fair value | 31 | 1,839
Derivative liabilities - Fair value | 0 | 0
Commodity contracts | Customer-related positions: |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | 6,182 | 6,014
Derivative liabilities - Fair value | 85,142 | 114,974
Commodity contracts | Customer-related positions: | Crude oil |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | 1,726 | 5,555
Derivative liabilities - Fair value | $ 24,975 | $ 20,548
Derivative, nonmonetary notional amount, energy measure | Boe | 8,593 | 9,243
Commodity contracts | Customer-related positions: | Natural gas |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 4,456 | $ 459
Derivative liabilities - Fair value | $ 60,167 | $ 94,426
Derivative, nonmonetary notional amount, energy measure | MMBTU | 225,957 | 166,053
Commodity contracts | Other economic hedges: |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 58,798 | $ 73,590
Derivative liabilities - Fair value | 4,860 | 6,696
Commodity contracts | Other economic hedges: | Crude oil |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | 15,047 | 10,851
Derivative liabilities - Fair value | $ 1,670 | $ 6,391
Derivative, nonmonetary notional amount, energy measure | Boe | 8,593 | 9,388
Commodity contracts | Other economic hedges: | Natural gas |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 43,751 | $ 62,739
Derivative liabilities - Fair value | $ 3,190 | $ 305
Derivative, nonmonetary notional amount, energy measure | MMBTU | 221,715 | 162,791
Commodity contracts | Swaps | Customer-related positions: | Crude oil |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 1,680 | $ 3,735
Derivative liabilities - Fair value | $ 15,382 | $ 15,445
Derivative, nonmonetary notional amount, energy measure | Boe | 3,407 | 3,277
Commodity contracts | Swaps | Customer-related positions: | Natural gas |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 3,559 | $ 438
Derivative liabilities - Fair value | $ 45,602 | $ 73,793
Derivative, nonmonetary notional amount, energy measure | MMBTU | 155,871 | 118,325
Commodity contracts | Swaps | Other economic hedges: | Crude oil |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 10,630 | $ 9,166
Derivative liabilities - Fair value | $ 1,670 | $ 4,924
Derivative, nonmonetary notional amount, energy measure | Boe | 3,407 | 3,422
Commodity contracts | Swaps | Other economic hedges: | Natural gas |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 35,173 | $ 49,941
Derivative liabilities - Fair value | $ 2,343 | $ 305
Derivative, nonmonetary notional amount, energy measure | MMBTU | 153,199 | 116,463
Commodity contracts | Written options | Customer-related positions: | Natural gas |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 142 | $ 0
Derivative liabilities - Fair value | $ 0 | $ 233
Derivative, nonmonetary notional amount, energy measure | MMBTU | 1,456 | 1,874
Commodity contracts | Purchased options | Other economic hedges: | Natural gas |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 0 | $ 233
Derivative liabilities - Fair value | $ 125 | $ 0
Derivative, nonmonetary notional amount, energy measure | MMBTU | 1,456 | 1,874
Commodity contracts | Collars | Customer-related positions: | Crude oil |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 46 | $ 1,820
Derivative liabilities - Fair value | $ 9,593 | $ 5,103
Derivative, nonmonetary notional amount, energy measure | Boe | 5,186 | 5,966
Commodity contracts | Collars | Customer-related positions: | Natural gas |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 755 | $ 21
Derivative liabilities - Fair value | $ 14,565 | $ 20,400
Derivative, nonmonetary notional amount, energy measure | MMBTU | 68,630 | 45,854
Commodity contracts | Collars | Other economic hedges: | Crude oil |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 4,417 | $ 1,685
Derivative liabilities - Fair value | $ 0 | $ 1,467
Derivative, nonmonetary notional amount, energy measure | Boe | 5,186 | 5,966
Commodity contracts | Collars | Other economic hedges: | Natural gas |  |
Derivative [Line Items] |  |
Derivative assets - Fair value | $ 8,578 | $ 12,565
Derivative liabilities - Fair value | $ 722 | $ 0
Derivative, nonmonetary notional amount, energy measure | MMBTU | 67,060 | 44,454

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