Contingencies and Guarantees (Tables)

3 Months Ended

Mar. 31, 2016

Commitments and Contingencies Disclosure [Abstract]

Schedule of Commitments to Extend Credit

The Corporation's credit risk associated with these instruments is represented by the contractual amounts indicated in the following table.

Unused commitments to extend credit
(In thousands)		March 31, 2016		December 31, 2015		March 31, 2015
	Commercial	$	3,609,266	$	3,992,089	$	3,691,193
	Consumer	2,458,973		2,393,058		2,343,677
	Total unused commitments to extend credit	$	6,068,239	$	6,385,147	$	6,034,870

Schedule of Guarantor Obligations

The Corporation is a guarantor in certain agreements with third parties. The Corporation's maximum credit risk associated with these instruments is represented by the contractual amounts indicated in the following table.

Financial guarantees
(In thousands)		March 31, 2016		December 31, 2015		March 31, 2015
	Standby letters of credit	$	236,642	$	254,703	$	275,736
	Loans sold with recourse	11,781		12,902		39,996
	Total financial guarantees	$	248,423	$	267,605	$	315,732

Changes in Repurchase Reserve

Changes in the repurchase reserves for the three months ended March 31, 2016 and 2015 are as follows:

	Three Months Ended March 31,
(In thousands)	2016			2015
Balance at beginning of period	$	2,725		$	7,250
Net increase/(decrease) to reserve	(53		)	(402		)
Net realized (losses)/gains	(47		)	(198		)
Balance at end of period	$	2,625		$	6,650