Trading Assets and Liabilities and Derivatives Trading Assets and Liabilities and Derivatives (Tables)

9 Months Ended

Sep. 30, 2017

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Trading Securities [Table Text Block]

The fair values of the components of trading assets and liabilities and derivative instruments are presented in the following table:

(Dollars in millions)	September 30, 2017		December 31, 2016
Trading Assets and Derivative Instruments:
U.S. Treasury securities		$366		$539
Federal agency securities	303		480
U.S. states and political subdivisions	53		134
MBS - agency	666		567
CLO securities	—		1
Corporate and other debt securities	665		656
CP	383		140
Equity securities	30		49
Derivative instruments 1	898		984
Trading loans 2	2,954		2,517
Total trading assets and derivative instruments		$6,318		$6,067
Trading Liabilities and Derivative Instruments:
U.S. Treasury securities		$555		$697
MBS - agency	—		1
Corporate and other debt securities	347		255
Equity securities	5		—
Derivative instruments 1	377		398
Total trading liabilities and derivative instruments		$1,284		$1,351

¹ Amounts include the impact of offsetting cash collateral received from and paid to the same derivative counterparties, and the impact of netting derivative assets and derivative liabilities when a legally enforceable master netting agreement or similar agreement exists.

² Includes loans related to TRS.

Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block]

Pledged trading assets are presented in the following table:

(Dollars in millions)	September 30, 2017		December 31, 2016
Pledged trading assets to secure repurchase agreements 1		$756		$968
Pledged trading assets to secure certain derivative agreements	291		471
Pledged trading assets to secure other arrangements	51		40

¹ Repurchase agreements secured by collateral totaled $721 million and $928 million at September 30, 2017 and December 31, 2016, respectively.