Legal Proceedings, Contingencies and Commitments (Tables)

12 Months Ended

Dec. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Summary of the Contractual Amount of Significant Commitments

The following table is a summary of the contractual amount of significant commitments:

	December 31,
	2019		2018
	(Dollars in millions)
Commitments to extend credit
Mortgage loan commitments including interest-rate locks	$	4,099	$	2,293
Warehouse loan commitments	1,944		2,334
Commercial and industrial commitments	1,107		918
Other commercial commitments	2,015		1,260
HELOC commitments	558		429
Other consumer commitments	175		108
Standby and commercial letters of credit	82		63