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

3 Months Ended

Mar. 31, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

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



(Dollars in millions)	March 31, 2018		December 31, 2017
Trading Assets and Derivative Instruments:
U.S. Treasury securities		$182		$157
Federal agency securities	238		395
U.S. states and political subdivisions	123		61
MBS - agency	699		700
Corporate and other debt securities	804		655
CP	169		118
Equity securities	51		56
Derivative instruments ¹	657		802
Trading loans ²	2,189		2,149
Total trading assets and derivative instruments		$5,112		$5,093

Trading Liabilities and Derivative Instruments:
U.S. Treasury securities		$698		$577
MBS - agency	1		—
Corporate and other debt securities	453		289
Equity securities	5		9
Derivative instruments ¹	580		408
Total trading liabilities and derivative instruments		$1,737		$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)	March 31, 2018		December 31, 2017
Pledged trading assets to secure repurchase agreements ¹		$1,151		$1,016
Pledged trading assets to secure certain derivative agreements	97		72
Pledged trading assets to secure other arrangements	40		41

¹ Repurchase agreements secured by collateral totaled $1.1 billion and $975 million at March 31, 2018 and December 31, 2017, respectively.