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Derivatives, Fair Value of Derivatives Contracts (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Derivative Assets, Fair Value, Net [Abstract]    
Derviative contracts, net of cash collateral, Assets, Fair value $ 353,037 $ 880,343
Derivative Liabilities, Fair Value, Net [Abstract]    
Derivative Liabilities, Fair Value, Net of Cash Collateral 550,653 554,900
Not Designated as Hedging Instrument [Member]    
Notional Amount of Derivatives [Abstract]    
Derivative Assets, Notional 35,763,096 [1] 28,273,268 [2]
Derivative Liabilities, Notional 31,679,977 [1] 25,778,851 [2]
Derivative Assets, Fair Value, Net [Abstract]    
Derivative Assets, Gross Fair Value 1,261,267 1,736,280
Derivative Assets, Netting Adjustments (639,061) (669,203)
Derivative Assets, Net Fair Value Before Cash Collateral 622,206 1,067,077
Derivative Assets, Cash Collateral (269,169) (186,734)
Derviative contracts, net of cash collateral, Assets, Fair value 353,037 880,343
Derivative Liabilities, Fair Value, Net [Abstract]    
Derivative Liabilities, Gross Fair Value 1,214,700 1,708,852
Derivative Liabilities, Netting Adjustments (639,061) (669,203)
Derivative Liabilities, Net Fair Value Before Cash Collateral 575,639 1,039,649
Derivative Liabilities, Cash Collateral (24,986) (484,749)
Derivative Liabilities, Fair Value, Net of Cash Collateral 550,653 554,900
Not Designated as Hedging Instrument [Member] | Total customer risk management programs    
Notional Amount of Derivatives [Abstract]    
Derivative Assets, Notional 11,007,232 [1] 10,788,231 [2]
Derivative Liabilities, Notional 11,004,117 [1] 11,561,139 [2]
Derivative Assets, Fair Value, Net [Abstract]    
Derivative Assets, Gross Fair Value 1,125,834 1,607,870
Derivative Assets, Netting Adjustments (587,545) (594,543)
Derivative Assets, Net Fair Value Before Cash Collateral 538,289 1,013,327
Derivative Assets, Cash Collateral (269,016) (182,088)
Derviative contracts, net of cash collateral, Assets, Fair value 269,273 831,239
Derivative Liabilities, Fair Value, Net [Abstract]    
Derivative Liabilities, Gross Fair Value 1,114,013 1,612,300
Derivative Liabilities, Netting Adjustments (587,545) (594,543)
Derivative Liabilities, Net Fair Value Before Cash Collateral 526,468 1,017,757
Derivative Liabilities, Cash Collateral (23,427) (484,326)
Derivative Liabilities, Fair Value, Net of Cash Collateral 503,041 533,431
Not Designated as Hedging Instrument [Member] | Interest rate contracts [Member]    
Notional Amount of Derivatives [Abstract]    
Derivative Assets, Notional 2,667,177 [1] 2,629,318 [2]
Derivative Liabilities, Notional [1] 2,667,177 2,629,122
Derivative Assets, Fair Value, Net [Abstract]    
Derivative Assets, Gross Fair Value 150,410 158,825
Derivative Assets, Netting Adjustments 0 0
Derivative Assets, Net Fair Value Before Cash Collateral 150,410 158,825
Derivative Assets, Cash Collateral (146,700) (114,955)
Derviative contracts, net of cash collateral, Assets, Fair value 3,710 43,870
Derivative Liabilities, Fair Value, Net [Abstract]    
Derivative Liabilities, Gross Fair Value 150,412 158,816
Derivative Liabilities, Netting Adjustments 0 0
Derivative Liabilities, Net Fair Value Before Cash Collateral 150,412 158,816
Derivative Liabilities, Cash Collateral 0 0
Derivative Liabilities, Fair Value, Net of Cash Collateral 150,412 158,816
Not Designated as Hedging Instrument [Member] | Energy contracts [Member]    
Notional Amount of Derivatives [Abstract]    
Derivative Assets, Notional 8,269,088 [1] 7,918,020 [2]
Derivative Liabilities, Notional 8,266,679 [1] 8,696,060 [2]
Derivative Assets, Fair Value, Net [Abstract]    
Derivative Assets, Gross Fair Value 914,855 1,232,283
Derivative Assets, Netting Adjustments (587,545) (594,543)
Derivative Assets, Net Fair Value Before Cash Collateral 327,310 637,740
Derivative Assets, Cash Collateral (120,398) (67,024)
Derviative contracts, net of cash collateral, Assets, Fair value 206,912 570,716
Derivative Liabilities, Fair Value, Net [Abstract]    
Derivative Liabilities, Gross Fair Value 903,909 1,242,058
Derivative Liabilities, Netting Adjustments (587,545) (594,543)
Derivative Liabilities, Net Fair Value Before Cash Collateral 316,364 647,515
Derivative Liabilities, Cash Collateral (23,427) (484,319)
Derivative Liabilities, Fair Value, Net of Cash Collateral 292,937 163,196
Not Designated as Hedging Instrument [Member] | Foreign exchange contracts [Member]    
Notional Amount of Derivatives [Abstract]    
Derivative Assets, Notional 62,860 [1] 219,791 [2]
Derivative Liabilities, Notional 62,154 [1] 214,855 [2]
Derivative Assets, Fair Value, Net [Abstract]    
Derivative Assets, Gross Fair Value 60,509 216,569
Derivative Assets, Netting Adjustments 0 0
Derivative Assets, Net Fair Value Before Cash Collateral 60,509 216,569
Derivative Assets, Cash Collateral (1,862) 0
Derviative contracts, net of cash collateral, Assets, Fair value 58,647 216,569
Derivative Liabilities, Fair Value, Net [Abstract]    
Derivative Liabilities, Gross Fair Value 59,632 211,233
Derivative Liabilities, Netting Adjustments 0 0
Derivative Liabilities, Net Fair Value Before Cash Collateral 59,632 211,233
Derivative Liabilities, Cash Collateral 0 (7)
Derivative Liabilities, Fair Value, Net of Cash Collateral 59,632 211,226
Not Designated as Hedging Instrument [Member] | Equity option contracts [Member]    
Notional Amount of Derivatives [Abstract]    
Derivative Assets, Notional 8,107 [1] 21,102 [2]
Derivative Liabilities, Notional 8,107 [1] 21,102 [2]
Derivative Assets, Fair Value, Net [Abstract]    
Derivative Assets, Gross Fair Value 60 193
Derivative Assets, Netting Adjustments 0 0
Derivative Assets, Net Fair Value Before Cash Collateral 60 193
Derivative Assets, Cash Collateral (56) (109)
Derviative contracts, net of cash collateral, Assets, Fair value 4 84
Derivative Liabilities, Fair Value, Net [Abstract]    
Derivative Liabilities, Gross Fair Value 60 193
Derivative Liabilities, Netting Adjustments 0 0
Derivative Liabilities, Net Fair Value Before Cash Collateral 60 193
Derivative Liabilities, Cash Collateral 0 0
Derivative Liabilities, Fair Value, Net of Cash Collateral 60 193
Not Designated as Hedging Instrument [Member] | Trading [Member]    
Notional Amount of Derivatives [Abstract]    
Derivative Assets, Notional 24,565,864 [1] 17,400,037 [2]
Derivative Liabilities, Notional 20,340,860 [1] 14,038,906 [2]
Derivative Assets, Fair Value, Net [Abstract]    
Derivative Assets, Gross Fair Value 133,391 126,910
Derivative Assets, Netting Adjustments (51,516) (74,647)
Derivative Assets, Net Fair Value Before Cash Collateral 81,875 52,263
Derivative Assets, Cash Collateral (153) (4,646)
Derviative contracts, net of cash collateral, Assets, Fair value 81,722 47,617
Derivative Liabilities, Fair Value, Net [Abstract]    
Derivative Liabilities, Gross Fair Value 96,506 94,958
Derivative Liabilities, Netting Adjustments (51,516) (74,647)
Derivative Liabilities, Net Fair Value Before Cash Collateral 44,990 20,311
Derivative Liabilities, Cash Collateral (1,559) (423)
Derivative Liabilities, Fair Value, Net of Cash Collateral 43,431 19,888
Not Designated as Hedging Instrument [Member] | Internal risk management programs [Member]    
Notional Amount of Derivatives [Abstract]    
Derivative Assets, Notional 190,000 [1] 85,000 [2]
Derivative Liabilities, Notional 335,000 [1] 178,806 [2]
Derivative Assets, Fair Value, Net [Abstract]    
Derivative Assets, Gross Fair Value 2,042 1,500
Derivative Assets, Netting Adjustments 0 (13)
Derivative Assets, Net Fair Value Before Cash Collateral 2,042 1,487
Derivative Assets, Cash Collateral 0 0
Derviative contracts, net of cash collateral, Assets, Fair value 2,042 1,487
Derivative Liabilities, Fair Value, Net [Abstract]    
Derivative Liabilities, Gross Fair Value 4,181 1,594
Derivative Liabilities, Netting Adjustments 0 (13)
Derivative Liabilities, Net Fair Value Before Cash Collateral 4,181 1,581
Derivative Liabilities, Cash Collateral 0 0
Derivative Liabilities, Fair Value, Net of Cash Collateral $ 4,181 $ 1,581
[1] Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract.
[2] Notional amounts for commodity contracts are converted into dollar-equivalent amounts based on dollar prices at the inception of the contract.