Commitments, Contingencies and Guarantees (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Summary of Commitments

The following table summarizes the Company's commitments:

(Dollars in millions)	December 31, 2018
Commitments to extend credit	$	33,487
Issued standby and commercial letters of credit	4,852
Commitments to enter into forward-starting resale agreements	877
Other commitments	493