The following table summarizes the changes in the allowance for credit losses by product and the related loan balance by product during the years ended December 31, 2013 , 2012 and 2011:



	Commercial												Consumer
	Construction and Other Real Estate			Business and Corporate Banking			Global Banking			Other Comm’l			Residential Mortgages			Home Equity Mortgages			Credit Card			Other Consumer			Total
	(in millions)
Year Ended December 31, 2013
Allowance for credit losses – beginning of period	$	162		$	97		$	41		$	17		$	210		$	45		$	55		$	20		$	647
Provision charged to income	(7		)	48			26			(5		)	42			54			32			3			193
Charge offs	(62		)	(42		)	—			—			(78		)	(52		)	(41		)	(13		)	(288		)
Recoveries	15			9			1			8			12			2			4			3			54
Net (charge offs) recoveries	(47		)	(33		)	1			8			(66		)	(50		)	(37		)	(10		)	(234		)
Other	—			—			—			—			—			—			—			—			—
Allowance for credit losses – end of period	$	108		$	112		$	68		$	20		$	186		$	49		$	50		$	13		$	606
Ending balance: collectively evaluated for impairment	$	76		$	109		$	63		$	20		$	120		$	47		$	48		$	13		$	496
Ending balance: individually evaluated for impairment	32			3			5			—			66			2			2			—			110
Total allowance for credit losses	$	108		$	112		$	68		$	20		$	186		$	49		$	50		$	13		$	606

Loans:
Collectively evaluated for impairment	$	8,701		$	14,420		$	21,560		$	3,346		$	13,967		$	1,991		$	846		$	510		$	65,341
Individually evaluated for impairment⁽¹⁾	333			26			65			43			247			20			8			—			742
Loans carried at lower of amortized cost or fair value less cost to sell	—			—			—			—			1,612			—			—			—			1,612
Total loans	$	9,034		$	14,446		$	21,625		$	3,389		$	15,826		$	2,011		$	854		$	510		$	67,695

Year Ended December 31, 2012
Allowance for credit losses – beginning of period	$	212		$	78		$	131		$	21		$	192		$	52		$	39		$	18		$	743
Provision charged to income	(33		)	48			14			(10		)	114			72			67			21			293
Charge offs	(36		)	(37		)	(105		)	(1		)	(107		)	(79		)	(62		)	(25		)	(452		)
Recoveries	19			8			1			7			11			—			11			6			63
Net (charge offs) recoveries	(17		)	(29		)	(104		)	6			(96		)	(79		)	(51		)	(19		)	(389		)
Other	—			—			—			—			—			—			—			—			—
Allowance for credit losses – end of period	$	162		$	97		$	41		$	17		$	210		$	45		$	55		$	20		$	647
Ending balance: collectively evaluated for impairment	$	76		$	87		$	41		$	17		$	105		$	41		$	50		$	20		$	437
Ending balance: individually evaluated for impairment	86			10			—			—			105			4			5			—			210
Total allowance for credit losses	$	162		$	97		$	41		$	17		$	210		$	45		$	55		$	20		$	647

Loans:
Collectively evaluated for impairment	$	7,960		$	12,502		$	19,991		$	3,000		$	13,563		$	2,303		$	801		$	598		$	60,718
Individually evaluated for impairment⁽¹⁾	497			106			18			76			331			21			14			—			1,063
Loans carried at lower of amortized cost or fair value less cost to sell	—			—			—			—			1,477			—			—			—			1,477
Total loans	$	8,457		$	12,608		$	20,009		$	3,076		$	15,371		$	2,324		$	815		$	598		$	63,258




	Commercial												Consumer
	Construction and Other Real Estate			Business and Corporate Banking			Global Banking			Other Comm’l			Residential Mortgages			Home Equity Mortgages			Credit Card			Other Consumer			Total
	(in millions)
Year Ended December 31, 2011
Allowance for credit losses – beginning of period	$	243		$	132		$	116		$	32		$	167		$	77		$	58		$	27		$	852
Provision charged to income	11			(3		)	31			(28		)	133			49			46			19			258
Charge offs	(51		)	(53		)	—			(6		)	(106		)	(70		)	(71		)	(29		)	(386		)
Recoveries	9			12			—			23			5			—			12			4			65
Net charge offs	(42		)	(41		)	—			17			(101		)	(70		)	(59		)	(25		)	(321		)
Allowance on loans transferred to held for sale	—			(10		)	(16		)	—			(7		)	(4		)	(6		)	(3		)	(46		)
Other	—			—			—			—			—			—			—			—			—
Allowance for credit losses – end of period	$	212		$	78		$	131		$	21		$	192		$	52		$	39		$	18		$	743
Ending balance: collectively evaluated for impairment	$	98		$	66		$	41		$	21		$	104		$	48		$	32		$	18		$	428
Ending balance: individually evaluated for impairment	114			12			90			—			88			4			7			—			315
Total allowance for credit losses	$	212		$	78		$	131		$	21		$	192		$	52		$	39		$	18		$	743
Loans:
Collectively evaluated for impairment	$	7,127		$	10,098		$	12,521		$	2,816		$	12,817		$	2,550		$	807		$	714		$	49,450
Individually evaluated for impairment⁽¹⁾	733			127			137			90			244			13			21			—			1,365
Loans carried at lower of amortized cost or fair value less cost to sell	—			—			—			—			1,052			—			—			—			1,052
Total loans	$	7,860		$	10,225		$	12,658		$	2,906		$	14,113		$	2,563		$	828		$	714		$	51,867

⁽¹⁾

For consumer loans, these amounts represent TDR Loans for which we evaluate reserves using a discounted cash flow methodology. Each loan is individually identified as a TDR Loan and then grouped together with other TDR Loans with similar characteristics. The discounted cash flow analysis is then applied to these groups of TDR Loans. Loans individually evaluated for impairment exclude TDR loans that are carried at the lower of amortized cost or fair value of the collateral less cost to sell which totaled $706 million, $608 million and $303 million at December 31, 2013 , 2012 and 2011, respectively.