Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The following table presents the notional amounts and fair values, including accrued interest, of derivative positions:

	At December 31, 2021
	Asset Derivatives				Liability Derivatives
(In thousands)	Notional Amounts		Fair Value		Notional Amounts		Fair Value
Designated as hedging instruments:
Interest rate derivatives (1)	$	1,000,000	$	17,583	$	—	$	—
Not designated as hedging instruments:
Interest rate derivatives (1)	4,463,048		141,243		4,372,846		21,570
Mortgage banking derivatives (2)	14,212		80		—		—
Other (3)	76,755		211		374,688		214
Total not designated as hedging instruments	4,554,015		141,534		4,747,534		21,784
Gross derivative instruments, before netting	$	5,554,015	159,117		$	4,747,534	21,784
Less: Master netting agreements			6,364				6,364
Cash collateral			19,272				2,119
Total derivative instruments, after netting			$	133,481			$	13,301
	At December 31, 2020
	Asset Derivatives				Liability Derivatives
(In thousands)	Notional Amounts		Fair Value		Notional Amounts		Fair Value
Designated as hedging instruments:
Interest rate derivatives (1)	$	1,000,000	$	40,854	$	25,000	$	110
Not designated as hedging instruments:
Interest rate derivatives (1)	4,421,627		297,085		4,468,153		12,203
Mortgage banking derivatives (2)	40,771		855		—		—
Other (3)	108,987		264		360,497		377
Total not designated as hedging instruments	4,571,385		298,204		4,828,650		12,580
Gross derivative instruments, before netting	$	5,571,385	339,058		$	4,853,650	12,690
Less: Master netting agreements			7,748				7,748
Cash collateral			33,972				4,550
Total derivative instruments, after netting			$	297,338			$	392

(1)Balances related to CME are presented as a single unit of account. In accordance with its rule book, CME legally characterizes variation margin payments as settlement of derivatives rather than collateral against derivative positions. Notional amounts of interest rate swaps cleared through CME include $0.4 billion and $0.1 billion for asset derivatives and $2.6 billion and $3.2 billion for liability derivatives at December 31, 2021 and 2020, respectively. The related fair values approximate zero.

(2)Notional amounts related to residential loans exclude approved floating rate commitments of $1.0 million at December 31, 2021.

(3)Other derivatives include foreign currency forward contracts related to lending arrangements and customer hedging activity, a Visa equity swap transaction, and risk participation agreements. Notional amounts of risk participation agreements include $66.0 million and $80.5 million for asset derivatives and $338.2 million and $338.9 million for liability derivatives at December 31, 2021 and 2020, respectively, that have insignificant related fair values.

Schedule of Net Investment Hedges, Statements of Financial Performance and Financial Position, Location [Table Text Block]

The following table presents fair value positions transitioned from gross to net upon applying counterparty netting agreements:

	At December 31, 2021
(In thousands)	Gross Amount		Offset Amount		Net Amount on Balance Sheet		Amounts Not Offset		Net Amounts
Asset derivatives	$	25,636	$	25,636	$	—	$	51	$	51
Liability derivatives	8,483		8,483		—		428		428
	At December 31, 2020
(In thousands)	Gross Amount		Offset Amount		Net Amount on Balance Sheet		Amounts Not Offset		Net Amounts
Asset derivatives	$	41,774	$	41,720	$	54	$	666	$	720
Liability derivatives	12,352		12,298		54		265		319

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

The following table summarizes the income statement effect of derivatives designated as cash flow hedges:

	Recognized In	Years ended December 31,
(In thousands)	Net Interest Income	2021		2020		2019
Interest rate derivatives	Long-term debt	$	411	$	8,206	$	4,241
Interest rate derivatives	Interest and fees on loans and leases	(10,676)		(6,373)		1,314
Net recognized on cash flow hedges		$	(10,265)	$	1,833	$	5,555

The following table summarizes information related to a fair value hedging adjustment:

Consolidated Balance Sheet Line Item in Which Hedged Item is Located	Carrying Amount of Hedged Item				Cumulative Amount of Fair Value Hedging Adjustment Included in Carrying Amount
	At December 31,				At December 31,
(In thousands)	2021		2020		2021		2020
Long-term debt	$	338,811	$	344,164	$	38,811	$	44,164

Other Derivatives Not Designated For Hedge Accounting

The following table summarizes the income statement effect of derivatives not designated as hedging instruments:

	Recognized In	Years ended December 31,
(In thousands)	Non-interest Income	2021		2020		2019
Interest rate derivatives	Other income	$	10,369	$	11,068	$	8,477
Mortgage banking derivatives	Mortgage banking activities	(776)		636		(6)
Other	Other income	878		(1,696)		1,100
Total not designated as hedging instruments		$	10,471	$	10,008	$	9,571