Derivative and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary Of Other Derivative Instruments Not Designated As Hedging Instruments [Table Text Block]

The table below identifies the balance sheet category and fair values of the Corporation’s derivative instruments:

	December 31, 2021								December 31, 2020
	Asset				Liability				Asset				Liability
($ in Thousands)	Notional Amount		Fair Value		Notional Amount		Fair Value		Notional Amount		Fair Value		Notional Amount		Fair Value
Not designated as hedging instruments
Interest rate-related instruments	$	3,874,781	$	83,626	$	3,874,781	$	26,231	$	3,639,679	$	192,518	$	3,639,679	$	25,680
Foreign currency exchange forwards	490,057		5,490		478,745		5,441		411,292		4,909		398,890		4,836
Commodity contracts	3,894		1,264		3,910		1,248		87,547		12,486		83,214		11,155
Mortgage banking(a)(b)	133,990		2,647		245,016		—		226,818		9,624		335,500		2,046
Gross derivatives before netting			$	93,026			$	32,921			$	219,537			$	43,716
Less: Legally enforceable master netting agreements			2,143				2,143				1,936				1,936
Less: Cash collateral pledged/received			1,313				11,357				10,879				25,625
Total derivative instruments, after netting			$	89,570			$	19,421			$	206,722			$	16,155

(a) Mortgage derivative assets include interest rate lock commitments and mortgage derivative liabilities include forward commitments.

(b) Includes approximately $30,000 of forward commitment fair value.

Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block]

The table below identifies the effect of fair value hedge accounting on the Corporation's consolidated statements of income during the twelve months ended December 31, 2021, 2020,and 2019:

	Location and Amount of Gain or (Loss) Recognized on Consolidated Statements of Income in Fair Value and Cash Flow Hedging Relationships
	For the Years Ended December 31,
	2021		2020				2019
($ in Thousands)	Interest Income		Interest Income		Other Expense		Interest Income
Total amounts of income and expense line items presented on the consolidated statements of income in which the effects of fair value or cash flow hedges are recorded(a)	$	(1,376)	$	(1,779)	$	(262)	$	(448)
The effects of fair value and cash flow hedging: Gain or (loss) on fair value hedging relationships in Subtopic 815-20
Interest contracts
Hedged items	(1,376)		(1,779)		(262)		5,871
Derivatives designated as hedging instruments(a)	—		—		—		(6,319)

(a) Includes net settlements as hedging instruments

Gain (loss) on derivative instruments not designated as hedging instruments

The table below identifies the effect of derivatives not designated as hedging instruments on the Corporation's consolidated statements of income during the twelve months ended December 31, 2021, 2020, and 2019:

	Consolidated Statements of Income Category of Gain / (Loss) Recognized in Income	For the Years Ended December 31,
($ in Thousands)		2021		2020		2019
Derivative Instruments
Interest rate-related instruments — customer and mirror, net	Capital market fees, net	$	2,432	$	(1,758)	$	(1,393)
Interest rate lock commitments (mortgage)	Mortgage banking, net	(7,007)		7,097		319
Forward commitments (mortgage)	Mortgage banking, net	(2,075)		1,335		1,362
Foreign currency exchange forwards	Capital market fees, net	(25)		(105)		132
Commodity contracts	Capital market fees, net	(1,316)		427		(1,763)