Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Company's Significant Commitments

The following table presents the Company’s significant commitments. Certain of these commitments are not included in the Company’s consolidated balance sheet.

	December 31
	2015		2014
	(In thousands)
Commitments to extend credit
Home equity lines of credit	$	5,631,680	$	6,194,516
Commercial real estate loans to be sold		57,597		212,257
Other commercial real estate		5,949,933		5,161,273
Residential real estate loans to be sold		488,621		432,352
Other residential real estate		212,619		197,825
Commercial and other		11,802,850		11,080,856
Standby letters of credit		3,330,013		3,706,888
Commercial letters of credit		55,559		46,965
Financial guarantees and indemnification contracts		2,794,322		2,490,050
Commitments to sell real estate loans		782,885		1,237,294

Minimum Lease Payments Under Noncancelable Operating Leases

Minimum lease payments under noncancelable operating leases are summarized in the following table:

	(In thousands)
Year ending December 31:
2016	$	96,308
2017		93,926
2018		79,995
2019		64,819
2020		46,589
Later years		110,533
	$	492,170