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, 2025 USD ($) MMBTU Boe	Dec. 31, 2024 USD ($) Boe MMBTU
Derivative [Line Items]
Derivative assets - Fair value	$ 408,429	$ 523,133
Derivative liabilities - Fair value	382,202	545,885
Customer-related positions:
Derivative [Line Items]
Notional Amount	11,400,638	10,994,794
Derivative assets - Fair value	88,377	39,718
Derivative liabilities - Fair value	223,400	416,216
Economic hedges and other:
Derivative [Line Items]
Notional Amount	11,869,964	11,212,047
Derivative assets - Fair value	228,608	429,029
Derivative liabilities - Fair value	86,840	33,999
Interest rate contracts \| Customer-related positions:
Derivative [Line Items]
Notional Amount	9,503,312	8,493,839
Derivative assets - Fair value	51,786	11,908
Derivative liabilities - Fair value	217,741	366,649
Interest rate contracts \| Economic hedges and other:
Derivative [Line Items]
Notional Amount	9,503,312	8,511,542
Derivative assets - Fair value	219,200	367,756
Derivative liabilities - Fair value	51,535	12,312
Interest rate contracts \| Swaps \| Customer-related positions:
Derivative [Line Items]
Notional Amount	7,526,652	6,854,372
Derivative assets - Fair value	51,303	11,828
Derivative liabilities - Fair value	215,703	361,256
Interest rate contracts \| Swaps \| Economic hedges and other:
Derivative [Line Items]
Notional Amount	7,526,652	6,872,075
Derivative assets - Fair value	217,149	362,323
Derivative liabilities - Fair value	51,010	12,228
Interest rate contracts \| Written options \| Customer-related positions:
Derivative [Line Items]
Notional Amount	1,519,006	1,458,428
Derivative assets - Fair value	0	0
Derivative liabilities - Fair value	1,942	4,953
Interest rate contracts \| Collars and corridors \| Customer-related positions:
Derivative [Line Items]
Notional Amount	457,654	181,039
Derivative assets - Fair value	483	80
Derivative liabilities - Fair value	96	440
Interest rate contracts \| Collars and corridors \| Economic hedges and other:
Derivative [Line Items]
Notional Amount	457,654	181,039
Derivative assets - Fair value	96	443
Derivative liabilities - Fair value	525	84
Interest rate contracts \| Purchased options \| Economic hedges and other:
Derivative [Line Items]
Notional Amount	1,519,006	1,458,428
Derivative assets - Fair value	1,955	4,990
Derivative liabilities - Fair value	0	0
Foreign exchange contracts \| Customer-related positions:
Derivative [Line Items]
Notional Amount	1,897,326	2,500,955
Derivative assets - Fair value	36,591	27,810
Derivative liabilities - Fair value	5,659	49,567
Foreign exchange contracts \| Economic hedges and other:
Derivative [Line Items]
Notional Amount	2,366,652	2,700,505
Derivative assets - Fair value	9,408	61,273
Derivative liabilities - Fair value	35,305	21,687
Foreign exchange contracts \| Swaps \| Customer-related positions:
Derivative [Line Items]
Notional Amount	830,798	1,504,469
Derivative assets - Fair value	15,555	16,117
Derivative liabilities - Fair value	2,406	25,366
Foreign exchange contracts \| Swaps \| Economic hedges and other:
Derivative [Line Items]
Notional Amount	2,078,033	2,613,755
Derivative assets - Fair value	7,635	58,955
Derivative liabilities - Fair value	31,544	19,949
Foreign exchange contracts \| Written options \| Customer-related positions:
Derivative [Line Items]
Notional Amount	76,120	0
Derivative assets - Fair value	0	0
Derivative liabilities - Fair value	152	0
Foreign exchange contracts \| Forwards and spot \| Customer-related positions:
Derivative [Line Items]
Notional Amount	990,408	996,486
Derivative assets - Fair value	21,036	11,693
Derivative liabilities - Fair value	3,101	24,201
Foreign exchange contracts \| Forwards and spot \| Economic hedges and other:
Derivative [Line Items]
Notional Amount	212,499	86,750
Derivative assets - Fair value	1,621	2,318
Derivative liabilities - Fair value	3,761	1,738
Foreign exchange contracts \| Purchased options \| Economic hedges and other:
Derivative [Line Items]
Notional Amount	76,120	0
Derivative assets - Fair value	152	0
Derivative liabilities - Fair value	0	0
Commodity contracts \| Customer-related positions:
Derivative [Line Items]
Derivative assets - Fair value	15,561	25,609
Derivative liabilities - Fair value	47,533	32,500
Commodity contracts \| Customer-related positions: \| Crude oil
Derivative [Line Items]
Derivative assets - Fair value	992	6,286
Derivative liabilities - Fair value	$ 29,546	$ 10,236
Derivative, nonmonetary notional amount, energy measure \| Boe	9,675	10,307
Commodity contracts \| Customer-related positions: \| Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 14,569	$ 19,323
Derivative liabilities - Fair value	$ 17,987	$ 22,264
Derivative, nonmonetary notional amount, energy measure \| MMBTU	185,263	205,015
Commodity contracts \| Economic hedges and other:
Derivative [Line Items]
Derivative assets - Fair value	$ 32,904	$ 22,890
Derivative liabilities - Fair value	8,242	12,828
Commodity contracts \| Economic hedges and other: \| Crude oil
Derivative [Line Items]
Derivative assets - Fair value	20,401	6,026
Derivative liabilities - Fair value	$ 228	$ 3,969
Derivative, nonmonetary notional amount, energy measure \| Boe	9,675	10,307
Commodity contracts \| Economic hedges and other: \| Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 12,503	$ 16,864
Derivative liabilities - Fair value	$ 8,014	$ 8,859
Derivative, nonmonetary notional amount, energy measure \| MMBTU	179,026	201,711
Commodity contracts \| Swaps \| Customer-related positions: \| Crude oil
Derivative [Line Items]
Derivative assets - Fair value	$ 293	$ 4,682
Derivative liabilities - Fair value	$ 20,392	$ 6,874
Derivative, nonmonetary notional amount, energy measure \| Boe	4,839	4,830
Commodity contracts \| Swaps \| Customer-related positions: \| Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 9,516	$ 13,095
Derivative liabilities - Fair value	$ 12,452	$ 17,708
Derivative, nonmonetary notional amount, energy measure \| MMBTU	103,622	141,736
Commodity contracts \| Swaps \| Economic hedges and other: \| Crude oil
Derivative [Line Items]
Derivative assets - Fair value	$ 16,094	$ 4,479
Derivative liabilities - Fair value	$ 155	$ 3,893
Derivative, nonmonetary notional amount, energy measure \| Boe	4,839	4,830
Commodity contracts \| Swaps \| Economic hedges and other: \| Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 8,655	$ 13,323
Derivative liabilities - Fair value	$ 5,076	$ 5,056
Derivative, nonmonetary notional amount, energy measure \| MMBTU	99,105	139,136
Commodity contracts \| Written options \| Customer-related positions: \| Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 113	$ 167
Derivative liabilities - Fair value	$ 0	$ 0
Derivative, nonmonetary notional amount, energy measure \| MMBTU	611	1,234
Commodity contracts \| Purchased options \| Economic hedges and other: \| Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 0	$ 0
Derivative liabilities - Fair value	$ 105	$ 153
Derivative, nonmonetary notional amount, energy measure \| MMBTU	611	1,234
Commodity contracts \| Collars \| Customer-related positions: \| Crude oil
Derivative [Line Items]
Derivative assets - Fair value	$ 699	$ 1,604
Derivative liabilities - Fair value	$ 9,154	$ 3,362
Derivative, nonmonetary notional amount, energy measure \| Boe	4,836	5,477
Commodity contracts \| Collars \| Customer-related positions: \| Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 4,940	$ 6,061
Derivative liabilities - Fair value	$ 5,535	$ 4,556
Derivative, nonmonetary notional amount, energy measure \| MMBTU	81,030	62,045
Commodity contracts \| Collars \| Economic hedges and other: \| Crude oil
Derivative [Line Items]
Derivative assets - Fair value	$ 4,307	$ 1,547
Derivative liabilities - Fair value	$ 73	$ 76
Derivative, nonmonetary notional amount, energy measure \| Boe	4,836	5,477
Commodity contracts \| Collars \| Economic hedges and other: \| Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 3,848	$ 3,541
Derivative liabilities - Fair value	$ 2,833	$ 3,650
Derivative, nonmonetary notional amount, energy measure \| MMBTU	79,310	61,341

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and elected not to be offset.

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- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and elected not to be offset.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Nominal energy measure used to calculate payments on a derivative instrument.

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- Definition

Nominal or face amount used to calculate payment on derivative.

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