Federal Funds Sold and Securities Financing Activities (Tables)

12 Months Ended

Dec. 31, 2018

Securities Purchased under Agreements to Resell [Abstract]

Schedule of Resale Agreements [Table Text Block]

Fed Funds sold and securities borrowed or purchased under agreements to resell were as follows:



(Dollars in millions)	December 31, 2018		December 31, 2017
Fed funds sold		$42		$65
Securities borrowed	394		298
Securities purchased under agreements to resell	1,243		1,175
Total Fed funds sold and securities borrowed or purchased under agreements to resell		$1,679		$1,538

Securities sold under agreements to repurchase remaining contractual maturity [Table Text Block]

Securities sold under agreements to repurchase are accounted for as secured borrowings. The following table presents the Company’s related activity, by collateral type and remaining contractual maturity:



	December 31, 2018								December 31, 2017
(Dollars in millions)	Overnight and Continuous		Up to 30 days		30-90 days		Total		Overnight and Continuous		Up to 30 days		30-90 days		Total
U.S. Treasury securities		$197		$7		$—		$204		$95		$—		$—		$95
Federal agency securities	112		10		—		122		101		15		—		116
MBS - agency	881		35		—		916		694		135		—		829
CP	78		—		—		78		19		—		—		19
Corporate and other debt securities	216		158		80		454		316		88		40		444
Total securities sold under agreements to repurchase		$1,484		$210		$80		$1,774		$1,225		$238		$40		$1,503

Netting of Financial Instruments - Repurchase Agreements [Table Text Block]

The following table presents the Company's securities borrowed or purchased under agreements to resell and securities

sold under agreements to repurchase that are subject to MRAs. Generally, MRAs require collateral to exceed the asset or liability recognized on the balance sheet. Transactions subject to these agreements are treated as collateralized financings, and those with a single counterparty are permitted to be presented net on the Company's Consolidated Balance Sheets, provided certain criteria are met that permit balance sheet netting. At December 31, 2018 and 2017, there were no such transactions subject to legally enforceable MRAs that were eligible for balance sheet netting. The following table includes the amount of collateral pledged or received related to exposures subject to enforceable MRAs. While these agreements are typically over-collateralized, the amount of collateral presented in this table is limited to the amount of the related recognized asset or liability for each counterparty.



(Dollars in millions)	Gross Amount		Amount Offset		Net Amount Presented in Consolidated Balance Sheets			Held/Pledged Financial Instruments		Net Amount
December 31, 2018
Financial assets:
Securities borrowed or purchased under agreements to resell		$1,637		$—		$1,637	¹		$1,624		$13
Financial liabilities:
Securities sold under agreements to repurchase	1,774		—		1,774			1,774		—

December 31, 2017
Financial assets:
Securities borrowed or purchased under agreements to resell		$1,473		$—		$1,473	¹		$1,462		$11
Financial liabilities:
Securities sold under agreements to repurchase	1,503		—		1,503			1,503		—

¹Excludes $42 million and $65 million of Fed Funds sold, which are not subject to a master netting agreement at December 31, 2018 and 2017