Offsetting Assets and Liabilities (Tables)

9 Months Ended

Sep. 30, 2017

Offsetting Assets and Liabilities [Abstract]

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

	September 30, 2017					December 31, 2016
(In millions)	Carrying value		Estimated fair value		Level	Carrying value		Estimated fair value		Level
Financial assets:
HTM investment securities	$	746	$	743	2	$	868	$	850	2
Loans and leases (including loans held for sale), net of allowance	43,686		43,196		3	42,254		42,111		3
Financial liabilities:
Time deposits	2,909		2,890		2	2,757		2,744		2
Other short-term borrowings	3,250		3,250		2	500		500		2
Long-term debt	383		406		2	535		552		2

	September 30, 2017
(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	$	779	$	(312	)	$	467	$	—		$	—		$	467
Derivatives (included in other assets)	43		—			43		(15		)	—			28
Total assets	$	822	$	(312	)	$	510	$	(15	)	$	—		$	495
Liabilities:
Federal funds and other short-term borrowings	$	4,936	$	(312	)	$	4,624	$	—		$	—		$	4,624
Derivatives (included in other liabilities)	35		—			35		(15		)	(11		)	9
Total Liabilities	$	4,971	$	(312	)	$	4,659	$	(15	)	$	(11	)	$	4,633

	December 31, 2016
(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	$	568	$	—	$	568	$	—		$	—		$	568
Derivatives (included in other assets)	64		—		64		(17		)	—			47
Total assets	$	632	$	—	$	632	$	(17	)	$	—		$	615
Liabilities:
Federal funds and other short-term borrowings	$	827	$	—	$	827	$	—		$	—		$	827
Derivatives (included in other liabilities)	59		—		59		(17		)	(17		)	25
Total Liabilities	$	886	$	—	$	886	$	(17	)	$	(17	)	$	852