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

12 Months Ended

Dec. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Debt Securities, Trading, and Equity Securities, FV-NI [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)	December 31, 2018		December 31, 2017
Trading Assets and Derivative Instruments:
U.S. Treasury securities		$262		$157
Federal agency securities	188		395
U.S. states and political subdivisions	54		61
MBS - agency	860		700
Corporate and other debt securities	700		655
CP	190		118
Equity securities	73		56
Derivative instruments ¹	639		802
Trading loans ²	2,540		2,149
Total trading assets and derivative instruments		$5,506		$5,093

Trading Liabilities and Derivative Instruments:
U.S. Treasury securities		$801		$577
MBS - agency	3		—
Corporate and other debt securities	385		289
Equity securities	5		9
Derivative instruments ¹	410		408
Total trading liabilities and derivative instruments		$1,604		$1,283

¹Amounts 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)	December 31, 2018		December 31, 2017
Pledged trading assets to secure repurchase agreements ¹		$1,418		$1,016
Pledged trading assets to secure certain derivative agreements	22		72
Pledged trading assets to secure other arrangements	40		41

¹ Repurchase agreements secured by collateral totaled $1.4 billion and $975 million at December 31, 2018 and 2017, respectively.