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

6 Months Ended

Jun. 30, 2012

Derivative Instruments and Other Financial Instruments Used For Hedging [Abstract]

Notional amounts, balance sheet location, and fair value amounts of derivative instruments

	June 30, 2012
			Asset Derivatives				Liability Derivatives
(Dollars in millions)	Notional Amount		Balance Sheet Location		Fair Value		Balance Sheet Location		Fair Value
Total derivatives designated as hedging instruments:
Interest rate contracts	$	10,500		Other assets	$	25		Other liabilities	$	—
Derivatives not designated as hedging instruments:
Interest rate contracts	$	34,574		Trading account assets	$	997		Trading account liabilities	$	940
Commodity contracts		5,929		Trading account assets		249		Trading account liabilities		212
Foreign exchange contracts		4,985		Trading account assets		103		Trading account liabilities		105
Equity contracts		3,379		Trading account assets		89		Trading account liabilities		89
Credit contracts		35		Trading account assets		3		Trading account liabilities		—
Total derivatives not designated as hedging instruments	$	48,902			$	1,441			$	1,346
Total derivative instruments	$	59,402			$	1,466			$	1,346

	December 31, 2011
			Asset Derivatives				Liability Derivatives
(Dollars in millions)	Notional Amount		Balance Sheet Location		Fair Value		Balance Sheet Location		Fair Value
Total derivatives designated as hedging instruments:
Interest rate contracts	$	7,400		Other assets	$	3		Other liabilities	$	10
Derivatives not designated as hedging instruments:
Interest rate contracts	$	33,903		Trading account assets	$	922		Trading account liabilities	$	869
Commodity contracts		5,136		Trading account assets		250		Trading account liabilities		247
Foreign exchange contracts		4,152		Trading account assets		88		Trading account liabilities		95
Equity contracts		3,037		Trading account assets		87		Trading account liabilities		87
Total derivatives not designated as hedging instruments	$	46,228			$	1,347			$	1,298
Total derivative instruments	$	53,628			$	1,350			$	1,308

Amount and location of the net gains and losses recorded in consolidated statements of income and changes in stockholder's equity for derivatives designated as cash flow hedges

	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 or (Loss) Recognized in Income on Derivative Instruments (Ineffective Portion and Amount Excluded from Effectiveness Testing)
	For the Three Months Ended June 30,						For the Three Months Ended June 30,								For the Three Months Ended June 30,
(Dollars in millions)	2012		2011			Location	2012			2011			Location		2012		2011
Derivatives in cash flow hedging relationships
						Interest income	$	4		$	(3	)		Noninterest
Interest rate contracts	$	28	$	(12	)	Interest expense		(1	)		(1	)		expense	$	—	$	—
Total	$	28	$	(12	)		$	3		$	(4	)			$	—	$	—

	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 or (Loss) Recognized in Income on Derivative Instruments (Ineffective Portion and Amount Excluded from Effectiveness Testing)
	For the Six Months Ended June 30,						For the Six Months Ended June 30,								For the Six Months Ended June 30,
(Dollars in millions)	2012		2011			Location	2012			2011			Location		2012		2011
Derivatives in cash flow hedging relationships
						Interest income	$	6		$	(4	)		Noninterest
Interest rate contracts	$	38	$	(7	)	Interest expense		(1	)		(2	)		expense	$	—	$	—
Total	$	38	$	(7	)		$	5		$	(6	)			$	—	$	—

Gain or (Loss) Recognized in Income on Derivative Instruments

	Gain or (Loss) Recognized in Income on Derivative  Instruments				Gain or (Loss) Recognized in Income on Derivative  Instruments
	For the Three Months Ended				For the Six Months Ended
(Dollars in millions)	June 30, 2012		June 30, 2011		June 30, 2012		June 30, 2011
Trading derivatives:
Interest rate contracts	$	7	$	8	$	21	$	19
Equity contracts		4		5		9		13
Foreign exchange contracts		6		7		13		13
Commodity contracts		4		3		4		2
Credit contracts		—		2		—		6
Total	$	21	$	25	$	47	$	53