Gross and net information for selecting financial instruments (Tables)

12 Months Ended

Dec. 31, 2019

Fair Value, by Balance Sheet Grouping [Table Text Block]

	December 31, 2019					December 31, 2018
(In millions)	Carrying value		Estimated fair value		Level	Carrying value		Estimated fair value		Level
Financial assets:
Held-to-maturity investment securities	$	592	$	597	2	$	774	$	767	2
Loans and leases (including loans held for sale), net of allowance	48,343		47,958		3	46,312		45,251		3
Financial liabilities:
Time deposits	4,719		4,725		2	4,336		4,319		2
Long-term debt	1,723		1,751		2	724		727		2

Offsetting Assets and Liabilities

	December 31, 2019
(In millions)							Gross amounts not offset in the balance sheet
Description	Gross amounts recognized		Gross amounts offset in the balance sheet		Net amounts presented in the balance sheet		Financial instruments		Cash collateral received/pledged		Net amount
Assets:
Federal funds sold and security resell agreements	$	694	$	(210)	$	484	$	—	$	—	$	484
Derivatives (included in other assets)	153		—		153		(6)		—		147
Total assets	$	847	$	(210)	$	637	$	(6)	$	—	$	631
Liabilities:
Federal funds and other short-term borrowings	$	2,263	$	(210)	$	2,053	$	—	$	—	$	2,053
Derivatives (included in other liabilities)	19		—		19		(6)		(10)		3
Total liabilities	$	2,282	$	(210)	$	2,072	$	(6)	$	(10)	$	2,056

	December 31, 2018
(In millions)							Gross amounts not offset in the balance sheet
Description	Gross amounts recognized		Gross amounts offset in the balance sheet		Net amounts presented in the balance sheet		Financial instruments		Cash collateral received/pledged		Net amount
Assets:
Federal funds sold and security resell agreements	$	1,461	$	—	$	1,461	$	—	$	—	$	1,461
Derivatives (included in other assets)	45		—		45		(35)		(3)		7
Total assets	$	1,506	$	—	$	1,506	$	(35)	$	(3)	$	1,468
Liabilities:
Federal funds and other short-term borrowings	$	5,653	$	—	$	5,653	$	—	$	—	$	5,653
Derivatives (included in other liabilities)	39		—		39		(35)		(1)		3
Total liabilities	$	5,692	$	—	$	5,692	$	(35)	$	(1)	$	5,656