Derivatives Instruments and Hedging Activities Disclosure (Tables)

3 Months Ended

Mar. 31, 2013

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Notional values or contractual amounts and fair value of the Corporation's derivatives designated in hedge relationships

	Asset Derivatives												Liability Derivatives
	March 31, 2013				December 31, 2012				March 31, 2012				March 31, 2013				December 31, 2012				March 31, 2012
	Notional/ Contract Amount		Fair Value (a)		Notional/ Contract Amount		Fair Value (a)		Notional/ Contract Amount		Fair Value (a)		Notional/ Contract Amount		Fair Value (b)		Notional/ Contract Amount		Fair Value (b)		Notional/ Contract Amount		Fair Value (b)
Interest rate swaps:
Fair value hedges	$	—	$	—	$	—	$	—	$	—	$	—	$	145,382	$	17,247	$	161,133	$	19,080	$	220,630	$	23,786

Notional values or contractual amounts and fair value of the Corporation's derivatives not designated in hedge

As of March 31, 2013, December 31, 2012 and March 31, 2012, the notional values or contractual amounts and fair value of the Corporation's derivatives not designated in hedge relationships were as follows:

	Asset Derivatives														Liability Derivatives
	March 31, 2013					December 31, 2012					March 31, 2012				March 31, 2013				December 31, 2012				March 31, 2012
	Notional/ Contract Amount		Fair Value(a)			Notional/ Contract Amount		Fair Value(a)			Notional/ Contract Amount		Fair Value(a)		Notional/ Contract Amount		Fair Value(b)		Notional/ Contract Amount		Fair Value(b)		Notional/ Contract Amount		Fair Value(b)
Interest rate swaps	$	1,266,831	$	54,590		$	1,204,835	$	58,769		$	1,016,626	$	56,298	$	1,266,831	$	54,590	$	1,204,835	$	58,769	$	1,016,626	$	56,298
Mortgage loan commitments	214,573		4,152			168,271		4,400			247,453		3,268		—		—		—		—		—		—
Forward sales contracts	122,795		(284		)	124,017		(62		)	201,637		446		—		—		—		—		—		—
Credit contracts	—		—			—		—			—		—		40,541		—		25,225		—		17,805		—
Foreign exchange	8,063		105			6,662		62			7,969		103		8,080		96		6,026		57		8,043		90
Other	—		—			—		—			—		—		35,286		—		31,492		—		24,516		—
Total	$	1,612,262	$	58,563		$	1,503,785	$	63,169		$	1,473,685	$	60,115	$	1,350,738	$	54,686	$	1,267,578	$	58,826	$	1,066,990	$	56,388

Gains and losses recognized in income on non-designated hedging instruments

Gains and losses recognized in income on non-designated hedging instruments for the three months ended March 31, 2013 and 2012 are as follows:

Derivatives not designated as hedging instruments	Location of Gain/(Loss) Recognized in Income on Derivative	Amount of Gain / (Loss) Recognized in Income on Derivatives
		Three Months Ended
		March 31, 2013			March 31, 2012
Mortgage loan commitments	Other operating income	$	(248	)	$	(1,691	)
Forward sales contracts	Other operating income	(223		)	2,244
Foreign exchange contracts	Other operating income	(191		)	45
Other	Other operating expense	—			—
Total		$	(662	)	$	598

Offsetting disclosure for derivatives contracts [Table Text Block]

Derivative assets and liabilities are recorded at fair value on the balance sheet and do not take into account the effects of master netting agreements. Master netting agreements allow the Corporation to settle all derivative contracts held with a single counterparty on a net basis, and to offset net derivative positions with related collateral, where applicable. The following tables illustrate the potential effect of the Corporation's derivative master netting arrangements, by type of financial instrument, on the Corporation's statement of financial position as of March 31, 2013, December 31, 2012 and March 31, 2012.

As of March 31, 2013
	Gross amounts of recognized assets		Gross amounts offset in the statement of financial position		Net amounts of assets presented in the statement of financial position		Gross amounts of financial instruments not offset in the statement of financial position					Total of gross amounts of financial instruments not offset in the statement of financial position including applicable netting agreement and fair value of collateral		Net amount
							Netting adjustment per applicable master netting agreements			Fair value of financial collateral
Derivative Assets	(i)		(ii)		(iii) = (i) - (ii)							(iv)		(v) = (iii) - (iv)
Interest rate swaps - designated	$	—	$	—	$	—	$	—		$	—	$	—	$	—
Interest rate swaps - non-designated	54,590		—		54,590		—			54,590		54,590		—
Credit contracts	—		—		—		—			—		—		—
Foreign exchange	105		—		105		(21		)	126		105		—
Total	$	54,695	$	—	$	54,695	$	(21	)	$	54,716	$	54,695	$	—
	Gross amounts of recognized liabilities		Gross amounts offset in the statement of financial position		Net amounts of liabilities presented in the statement of financial position		Gross amounts of financial instruments not offset in the statement of financial position					Total of gross amounts of financial instruments not offset in the statement of financial position including applicable netting agreement and fair value of collateral		Net amount
							Netting adjustment per applicable master netting agreements			Fair value of financial collateral
Derivative Liabilities	(i)		(ii)		(iii) = (i) - (ii)							(iv)		(v) = (iii) - (iv)
Interest rate swaps - designated	$	17,247	$	—	$	17,247	$	—		$	17,247	$	17,247	$	—
Interest rate swaps - non-designated	54,590		—		54,590		(59		)	54,649		54,590		—
Credit contracts	—		—		—		—			—		—		—
Foreign exchange	96		—		96		—			96		96		—
Total	$	71,933	$	—	$	71,933	$	(59	)	$	71,992	$	71,933	$	—

As of December 31, 2012
	Gross amounts of recognized assets		Gross amounts offset in the statement of financial position		Net amounts of assets presented in the statement of financial position		Gross amounts of financial instruments not offset in the statement of financial position					Total of gross amounts of financial instruments not offset in the statement of financial position including applicable netting agreement and fair value of collateral		Net amount
							Netting adjustment per applicable master netting agreements			Fair value of financial instrument collateral
Derivative assets	(i)		(ii)		(iii) = (i) - (ii)							(iv)		(v) = (iii) - (iv)
Interest rate swaps - designated	—		—		—		—			—		—		—
Interest rate swaps - non-designated	$	58,769	$	—	$	58,769	$	—		$	58,769	$	58,769	$	—
Credit contracts	—		—		—		—			—		—		—
Foreign exchange	62		—		62		—			62		62		—
Total	$	58,831	$	—	$	58,831	$	—		$	58,831	$	58,831	$	—
	Gross amounts of recognized liabilities		Gross amounts offset in the statement of financial position		Net amounts of liabilities presented in the statement of financial position		Gross amounts of financial instruments not offset in the statement of financial position					Total of gross amounts of financial instruments not offset in the statement of financial position including applicable netting agreement and fair value of collateral		Net amount
							Netting adjustment per applicable master netting agreements			Fair value of financial instrument collateral
Derivative Liabilities	(i)		(ii)		(iii) = (i) - (ii)							(iv)		(v) = (iii) - (iv)
Interest rate swaps - designated	$	19,080	$	—	$	19,080	$	—		$	19,080	$	19,080	$	—
Interest rate swaps - non-designated	58,769		—		58,769		(55		)	58,824		58,769		—
Credit contracts	—		—		—		—			—		—		—
Foreign exchange	57		—		57		(14		)	71		57		—
Total	$	77,906	$	—	$	77,906	$	(69	)	$	77,975	$	77,906	$	—

As of March 31, 2012
	Gross amounts of recognized assets		Gross amounts offset in the statement of financial position		Net amounts of assets presented in the statement of financial position		Gross amounts of financial instruments not offset in the statement of financial position					Total of gross amounts of financial instruments not offset in the statement of financial position including applicable netting agreement and fair value of collateral		Net amount
							Netting adjustment per applicable master netting agreements			Fair value of financial instrument collateral
Derivative assets	(i)		(ii)		(iii) = (i) - (ii)							(iv)		(v) = (iii) - (iv)
Interest rate swaps - designated	—		—		—		—			—		—		—
Interest rate swaps - non-designated	$	56,298	$	—	$	56,298	$	—		$	56,298	$	56,298	$	—
Credit contracts	—		—		—		—			—		—		—
Foreign exchange	103		—		103		—			103		103		—
Total	$	56,401	$	—	$	56,401	$	—		$	56,401	$	56,401	$	—
	Gross amounts of recognized liabilities		Gross amounts offset in the statement of financial position		Net amounts of liabilities presented in the statement of financial position		Gross amounts of financial instruments not offset in the statement of financial position					Total of gross amounts of financial instruments not offset in the statement of financial position including applicable netting agreement and fair value of collateral		Net amount
							Netting adjustment per applicable master netting agreements			Fair value of financial instrument collateral
Derivative Liabilities	(i)		(ii)		(iii) = (i) - (ii)							(iv)		(v) = (iii) - (iv)
Interest rate swaps - designated	$	23,786	$	—	$	23,786	$	—		$	23,786	$	23,786	$	—
Interest rate swaps - non-designated	56,298		—		56,298		(204		)	56,502		56,298		—
Credit contracts	—		—		—		—			—		—		—
Foreign exchange	90		—		90		(24		)	114		90		—
Total	$	80,174	$	—	$	80,174	$	(228	)	$	80,402	$	80,174	$	—