Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Schedule of Commitments and Contingencies

The following table summarizes certain tax credit, private equity, and certain other equity method investments:

December 31, (Dollars in millions)	Balance Sheet Location	2019		2018
Investments in affordable housing projects:
Carrying amount	Other assets	$	3,684	$	2,088
Amount of future funding commitments included in carrying amount	Other liabilities	1,271		919
Lending exposure		647		460
Renewable energy investments:
Carrying amount	Other assets	81		—
Amount of future funding commitments not included in carrying amount	N/A	246		—
Private equity and certain other equity method investments:
Carrying amount	Other assets	1,556		458
Amount of future funding commitments not included in carrying amount	N/A	331		331

Schedule of Pledged Assets

December 31, (Dollars in millions)	2019		2018
Pledged securities	$	11,283	$	13,237
Pledged loans:
FRB	30,238		30,007
FHLB	80,816		47,840
Available borrowing capacity:
FRB	21,169		21,599
FHLB	66,842		33,349

Schedule of Off-Balance Sheet

The following is a summary of selected notional amounts of off-balance sheet financial instruments:

December 31, (Dollars in millions)	2019		2018
Commitments to extend, originate or purchase credit	$	177,598	$	72,435
Residential mortgage loans sold with recourse	371		419
CRE mortgages serviced for others covered by recourse provisions	8,676		4,699
Letters of credit	5,181		2,389