XML 49 R37.htm IDEA: XBRL DOCUMENT v3.21.2
Legal Proceedings, Contingencies and Commitments (Tables)
 9 Months Ended
Sep. 30, 2021
Commitments and Contingencies Disclosure [Abstract]  
Summary of Contractual Amount of Significant Commitments The following table is a summary of the contractual amount of significant commitments:
September 30, 2021December 31, 2020
 (Dollars in millions)
Commitments to extend credit
Mortgage loan commitments including interest rate locks$7,636 $10,702 
Warehouse loan commitments4,697 2,849 
Commercial and industrial commitments1,452 1,271 
Other construction commitments2,429 1,934 
HELOC commitments603 544 
Other consumer commitments151 121 
Standby and commercial letters of credit107 95