Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Off-Balance Sheet Commitments

The following table summarizes additional off-balance sheet commitments for the Bank (dollars in millions):

	December 31, 2019						December 31, 2018
	Expire within one year		Expire after one year		Total		Total
Standby letters of credit1	$	10,025	$	168	$	10,193	$	9,094
Standby bond purchase agreements	62		757		819		675
Commitments to purchase mortgage loans	127		—		127		101
Commitments to issue bonds	—		—		—		60
Commitments to fund advances	527		—		527		50

1

Excludes commitments to issue standby letters of credit of $34 million and $3 million at December 31, 2019 and 2018.