Commitments, Guarantees, And Contingent Liabilities (Tables)

3 Months Ended

Mar. 31, 2017

Guarantees, Commitments And Contingencies [Abstract]

Schedule Of Guarantees Issued

(In millions)	March 31, 2017		December 31, 2016
Net unfunded commitments to extend credit 1	$	18,467	$	18,274
Standby letters of credit:
Financial	701		771
Performance	191		196
Commercial letters of credit	77		60
Total unfunded lending commitments	$	19,436	$	19,301

¹  Net of participations