Derivatives - Schedule of Derivatives Not Designated as Hedging Instruments (Details) MMBTU in Thousands, Boe in Thousands, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2025 USD ($) Boe MMBTU	Dec. 31, 2024 USD ($) MMBTU Boe
Derivative [Line Items]
Derivative assets - Fair value	$ 513,897	$ 523,133
Derivative liabilities - Fair value	464,084	545,885
Customer-related positions:
Derivative [Line Items]
Notional Amount	10,718,394	10,994,794
Derivative assets - Fair value	52,430	39,718
Derivative liabilities - Fair value	305,977	416,216
Other economic hedges:
Derivative [Line Items]
Notional Amount	10,938,091	11,212,047
Derivative assets - Fair value	312,183	429,029
Derivative liabilities - Fair value	48,954	33,999
Interest rate contracts | Customer-related positions:
Derivative [Line Items]
Notional Amount	8,573,538	8,493,839
Derivative assets - Fair value	31,133	11,908
Derivative liabilities - Fair value	292,176	366,649
Interest rate contracts | Other economic hedges:
Derivative [Line Items]
Notional Amount	8,573,538	8,511,542
Derivative assets - Fair value	294,099	367,756
Derivative liabilities - Fair value	31,854	12,312
Interest rate contracts | Swaps | Customer-related positions:
Derivative [Line Items]
Notional Amount	6,906,842	6,854,372
Derivative assets - Fair value	30,939	11,828
Derivative liabilities - Fair value	287,307	361,256
Interest rate contracts | Swaps | Other economic hedges:
Derivative [Line Items]
Notional Amount	6,906,842	6,872,075
Derivative assets - Fair value	289,196	362,323
Derivative liabilities - Fair value	31,653	12,228
Interest rate contracts | Written options | Customer-related positions:
Derivative [Line Items]
Notional Amount	1,477,752	1,458,428
Derivative assets - Fair value	0	0
Derivative liabilities - Fair value	4,616	4,953
Interest rate contracts | Collars and corridors | Customer-related positions:
Derivative [Line Items]
Notional Amount	188,944	181,039
Derivative assets - Fair value	194	80
Derivative liabilities - Fair value	253	440
Interest rate contracts | Collars and corridors | Other economic hedges:
Derivative [Line Items]
Notional Amount	188,944	181,039
Derivative assets - Fair value	254	443
Derivative liabilities - Fair value	201	84
Interest rate contracts | Purchased options | Other economic hedges:
Derivative [Line Items]
Notional Amount	1,477,752	1,458,428
Derivative assets - Fair value	4,649	4,990
Derivative liabilities - Fair value	0	0
Foreign exchange contracts | Customer-related positions:
Derivative [Line Items]
Notional Amount	2,144,856	2,500,955
Derivative assets - Fair value	21,297	27,810
Derivative liabilities - Fair value	13,801	49,567
Foreign exchange contracts | Other economic hedges:
Derivative [Line Items]
Notional Amount	2,364,553	2,700,505
Derivative assets - Fair value	18,084	61,273
Derivative liabilities - Fair value	17,100	21,687
Foreign exchange contracts | Swaps | Customer-related positions:
Derivative [Line Items]
Notional Amount	1,241,537	1,504,469
Derivative assets - Fair value	16,106	16,117
Derivative liabilities - Fair value	2,539	25,366
Foreign exchange contracts | Swaps | Other economic hedges:
Derivative [Line Items]
Notional Amount	2,097,312	2,613,755
Derivative assets - Fair value	15,112	58,955
Derivative liabilities - Fair value	16,843	19,949
Foreign exchange contracts | Written options | Customer-related positions:
Derivative [Line Items]
Notional Amount	161,165	0
Derivative assets - Fair value	0	0
Derivative liabilities - Fair value	2,433	0
Foreign exchange contracts | Forwards and spot | Customer-related positions:
Derivative [Line Items]
Notional Amount	742,154	996,486
Derivative assets - Fair value	5,191	11,693
Derivative liabilities - Fair value	8,829	24,201
Foreign exchange contracts | Forwards and spot | Other economic hedges:
Derivative [Line Items]
Notional Amount	106,076	86,750
Derivative assets - Fair value	539	2,318
Derivative liabilities - Fair value	257	1,738
Foreign exchange contracts | Purchased options | Other economic hedges:
Derivative [Line Items]
Notional Amount	161,165	0
Derivative assets - Fair value	2,433	0
Derivative liabilities - Fair value	0	0
Commodity contracts | Customer-related positions:
Derivative [Line Items]
Derivative assets - Fair value	116,136	25,609
Derivative liabilities - Fair value	13,052	32,500
Commodity contracts | Customer-related positions: | Crude oil
Derivative [Line Items]
Derivative assets - Fair value	4,614	6,286
Derivative liabilities - Fair value	$ 10,823	$ 10,236
Derivative, nonmonetary notional amount, energy measure | Boe	9,657	10,307
Commodity contracts | Customer-related positions: | Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 111,522	$ 19,323
Derivative liabilities - Fair value	$ 2,229	$ 22,264
Derivative, nonmonetary notional amount, energy measure | MMBTU	215,362	205,015
Commodity contracts | Other economic hedges:
Derivative [Line Items]
Derivative assets - Fair value	$ 6,730	$ 22,890
Derivative liabilities - Fair value	68,810	12,828
Commodity contracts | Other economic hedges: | Crude oil
Derivative [Line Items]
Derivative assets - Fair value	5,345	6,026
Derivative liabilities - Fair value	$ 3,232	$ 3,969
Derivative, nonmonetary notional amount, energy measure | Boe	9,657	10,307
Commodity contracts | Other economic hedges: | Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 1,385	$ 16,864
Derivative liabilities - Fair value	$ 65,578	$ 8,859
Derivative, nonmonetary notional amount, energy measure | MMBTU	210,365	201,711
Commodity contracts | Swaps | Customer-related positions: | Crude oil
Derivative [Line Items]
Derivative assets - Fair value	$ 3,321	$ 4,682
Derivative liabilities - Fair value	$ 8,138	$ 6,874
Derivative, nonmonetary notional amount, energy measure | Boe	5,365	4,830
Commodity contracts | Swaps | Customer-related positions: | Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 72,251	$ 13,095
Derivative liabilities - Fair value	$ 2,109	$ 17,708
Derivative, nonmonetary notional amount, energy measure | MMBTU	132,980	141,736
Commodity contracts | Swaps | Other economic hedges: | Crude oil
Derivative [Line Items]
Derivative assets - Fair value	$ 4,718	$ 4,479
Derivative liabilities - Fair value	$ 2,813	$ 3,893
Derivative, nonmonetary notional amount, energy measure | Boe	5,365	4,830
Commodity contracts | Swaps | Other economic hedges: | Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 1,265	$ 13,323
Derivative liabilities - Fair value	$ 38,435	$ 5,056
Derivative, nonmonetary notional amount, energy measure | MMBTU	129,568	139,136
Commodity contracts | Written options | Customer-related positions: | Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 219	$ 167
Derivative liabilities - Fair value	$ 0	$ 0
Derivative, nonmonetary notional amount, energy measure | MMBTU	1,234	1,234
Commodity contracts | Purchased options | Other economic hedges: | Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 0	$ 0
Derivative liabilities - Fair value	$ 204	$ 153
Derivative, nonmonetary notional amount, energy measure | MMBTU	1,234	1,234
Commodity contracts | Collars | Customer-related positions: | Crude oil
Derivative [Line Items]
Derivative assets - Fair value	$ 1,293	$ 1,604
Derivative liabilities - Fair value	$ 2,685	$ 3,362
Derivative, nonmonetary notional amount, energy measure | Boe	4,292	5,477
Commodity contracts | Collars | Customer-related positions: | Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 39,052	$ 6,061
Derivative liabilities - Fair value	$ 120	$ 4,556
Derivative, nonmonetary notional amount, energy measure | MMBTU	81,148	62,045
Commodity contracts | Collars | Other economic hedges: | Crude oil
Derivative [Line Items]
Derivative assets - Fair value	$ 627	$ 1,547
Derivative liabilities - Fair value	$ 419	$ 76
Derivative, nonmonetary notional amount, energy measure | Boe	4,292	5,477
Commodity contracts | Collars | Other economic hedges: | Natural gas
Derivative [Line Items]
Derivative assets - Fair value	$ 120	$ 3,541
Derivative liabilities - Fair value	$ 26,939	$ 3,650
Derivative, nonmonetary notional amount, energy measure | MMBTU	79,563	61,341