Commitments and contingencies (Tables)

12 Months Ended

Dec. 31, 2019

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingent Liabilities Outstanding

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
	2019		2018
	(In thousands)
Commitments to extend credit
Home equity lines of credit	$	5,442,160		5,484,197
Commercial real estate loans to be sold		164,076		229,401
Other commercial real estate		9,029,608		7,556,722
Residential real estate loans to be sold		423,056		245,211
Other residential real estate		448,375		219,351
Commercial and other		16,170,731		14,363,803
Standby letters of credit		2,441,432		2,326,991
Commercial letters of credit		41,059		55,808
Financial guarantees and indemnification contracts		4,108,572		3,529,136
Commitments to sell real estate loans		906,037		940,692