Derivative Instruments and Other Financial Instruments Used For Hedging (Tables)

12 Months Ended

Dec. 31, 2015

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Notional Amounts, Balance Sheet Location and Fair Value Amounts of Derivative Instruments

The table below presents the notional amounts and fair value amounts of the Company's derivative instruments reported on the consolidated balance sheets, segregated between derivative instruments designated and qualifying as hedging instruments and derivative instruments not designated as hedging instruments as of December 31, 2015 and December 31, 2014, respectively. Asset and liability values are presented gross, excluding the impact of legally enforceable master netting and credit support annex agreements. The fair value of asset and liability derivatives designated and qualifying as hedging instruments and derivatives designated as other risk management are included in other assets and other liabilities, respectively. The fair value of asset and liability trading derivatives are included in trading account assets and trading account liabilities, respectively.

	December 31, 2015						December 31, 2014
			Fair Value						Fair Value
(Dollars in millions)	Notional Amount		Asset Derivatives		Liability Derivatives		Notional Amount		Asset Derivatives		Liability Derivatives
Cash flow hedges
Interest rate contracts	$	15,250	$	68	$	14	$	9,750	$	34	$	4
Fair value hedges
Interest rate contracts	500		5		—		500		2		—
Not designated as hedging instruments:
Trading
Interest rate contracts	100,932		1,002		948		46,944		933		830
Commodity contracts	3,775		409		369		4,741		422		408
Foreign exchange contracts	5,541		117		93		5,661		106		80
Equity contracts	3,351		222		221		3,797		300		299
Total Trading	113,599		1,750		1,631		61,143		1,761		1,617
Other risk management	251		5		2		286		2		3
Total derivative instruments	$	129,600	$	1,828	$	1,647	$	71,679	$	1,799	$	1,624

Amount and Location of Gains and Losses for Derivatives Designated as Cash Flow Hedges

The following tables present the amount and location of the net gains and losses recorded in the Company's consolidated statements of income and changes in stockholder's equity for derivatives designated as cash flow hedges for the years ended December 31, 2015 and 2014:

	Amount of Gain or (Loss) Recognized in OCI on Derivative Instruments (Effective Portion)				Gain or (Loss) Reclassified from Accumulated OCI into Income (Effective Portion)					Gain (Loss) Recognized in Income on Derivative Instruments (Ineffective Portion)
	For the Years Ended December 31,					For the Years Ended December 31,					For the Years Ended December 31,
(Dollars in millions)	2015		2014		Location	2015		2014		Location	2015		2014
Derivatives in cash flow hedging relationships
					Interest income	$	168	$	115
Interest rate contracts	$	195	$	126	Interest expense	2		2		Noninterest expense	$	1	$	2
Total	$	195	$	126		$	170	$	117		$	1	$	2

Schedule of Derivative Instruments Gain (Loss) on Fair Value Hedges

The following table presents the gains (losses) on the Company's fair value hedges and hedged item for the years ended December 31, 2015 and 2014:

		For the Year Ended December 31, 2015							For the Year Ended December 31, 2014
(Dollars in millions)		Derivative		Hedged Item			Hedge Ineffectiveness		Derivative		Hedged Item			Hedge Ineffectiveness
Interest rate risk on long-term debt		$	2	$	(2	)	$	—	$	2	$	(1	)	$	1
	Total	$	2	$	(2	)	$	—	$	2	$	(1	)	$	1

Gain or (Loss) Recognized in Income on Derivative Instruments

The following table presents the amount of the net gains and losses for derivative instruments classified as trading reported in the consolidated statements of income under the heading trading account activities for the twelve months ended December 31, 2015 and 2014:

	Gain (Loss) Recognized in Income on Derivative Instruments
	For the Years Ended
(Dollars in millions)	December 31, 2015		December 31, 2014
Trading derivatives:
Interest rate contracts	$	17	$	36
Equity contracts	—		3
Foreign exchange contracts	27		19
Commodity contracts	3		8
Other contracts	—		1
Total	$	47	$	67

Summary of Offsetting Assets and Liabilities

The following tables present the offsetting of financial assets and liabilities as of December 31, 2015 and 2014:

	December 31, 2015
							Gross Amounts Not Offset in Balance Sheet
(Dollars in millions)	Gross Amounts of Recognized Assets/Liabilities		Gross Amounts Offset in Balance Sheet		Net Amounts Presented in Balance Sheet		Financial Instruments		Cash Collateral Received/Pledged		Net Amount
Financial Assets:
Derivative assets	$	1,828	$	909	$	919	$	60	$	—	$	859
Securities purchased under resale agreements	24		—		24		24		—		—
Total	$	1,852	$	909	$	943	$	84	$	—	$	859
Financial Liabilities:
Derivative liabilities	$	1,647	$	872	$	775	$	180	$	—	$	595
Securities sold under repurchase agreements	36		—		36		36		—		—
Total	$	1,683	$	872	$	811	$	216	$	—	$	595

	December 31, 2014
							Gross Amounts Not Offset in Balance Sheet
(Dollars in millions)	Gross Amounts of Recognized Assets/Liabilities		Gross Amounts Offset in Balance Sheet		Net Amounts Presented in Balance Sheet		Financial Instruments		Cash Collateral Received/Pledged		Net Amount
Financial Assets:
Derivative assets	$	1,799	$	887	$	912	$	113	$	—	$	799
Securities purchased under resale agreements	62		—		62		61		—		1
Total	$	1,861	$	887	$	974	$	174	$	—	$	800
Financial Liabilities:
Derivative liabilities	$	1,624	$	787	$	837	$	162	$	—	$	675
Securities sold under repurchase agreements	68		—		68		68		—		—
Total	$	1,692	$	787	$	905	$	230	$	—	$	675