Medium- And Long-Term Debt

9 Months Ended

Sep. 30, 2020

Medium- and long-term debt is summarized as follows:


(in millions)	September 30, 2020		December 31, 2019
Parent company
Subordinated notes:
3.80% subordinated notes due 2026 (a)	$	282	$	264
Medium- and long-term notes:
3.70% notes due 2023 (a)	911		884
4.00% notes due 2029 (a)	643		587
Total medium- and long-term notes	1,554		1,471
Total parent company	1,836		1,735
Subsidiaries
Subordinated notes:
4.00% subordinated notes due 2025 (a)	382		360
7.875% subordinated notes due 2026 (a)	210		202
Total subordinated notes	592		562
Medium- and long-term notes:
2.50% notes due 2020 (a)	—		674
2.50% notes due 2024 (a)	526		498
Total medium- and long-term notes	526		1,172
FHLB advances:
Floating-rate based on FHLB auction rate due 2026	2,800		2,800
Floating-rate based on FHLB auction rate due 2028	—		1,000
Total FHLB advances	2,800		3,800
Total subsidiaries	3,918		5,534
Total medium- and long-term debt	$	5,754	$	7,269

(a)The fixed interest rates on these notes have been swapped to a variable rate and designated in a hedging relationship. Accordingly, carrying value has been adjusted to reflect the change in the fair value of the debt as a result of changes in the benchmark rate.

Subordinated notes with remaining maturities greater than one year qualify as Tier 2 capital.

Comerica Bank (the Bank), a wholly-owned subsidiary of the Corporation, is a member of the FHLB, which provides short- and long-term funding to its members through advances collateralized by real estate-related assets. The interest rates on

the FHLB advances resets between four and eight weeks, based on the FHLB auction rate. At September 30, 2020, the weighted-average rate on the FHLB advances was 0.22%. Each note may be prepaid in full, without penalty, at each scheduled reset date. Borrowing capacity is contingent on the amount of collateral available to be pledged to the FHLB. At September 30, 2020, $19.0 billion of real estate-related loans and $4.8 billion of investment securities were pledged to the FHLB as collateral for outstanding long-term advances of $2.8 billion with an additional capacity for potential future borrowings of approximately $11.7 billion.

Unamortized debt issuance costs deducted from the carrying amount of medium- and long-term debt totaled $10 million at September 30, 2020 and $12 million at December 31, 2019.