The table below summarizes information about the allowance for loan losses, loans by impairment methodology, the allowance for lending-related commitments and lending-related commitments by impairment methodology.



	2015													2014
Six months ended June 30 (in millions)	Consumer, excluding credit card			Credit card				Wholesale			Total			Consumer, excluding credit card			Credit card				Wholesale			Total
Allowance for loan losses
Beginning balance at January 1,	$	7,050		$	3,439			$	3,696		$	14,185		8,456			$	3,795			$	4,013		$	16,264
Gross charge-offs	827			1,776				33			2,636			1,084			1,982				77			3,143
Gross recoveries	(337		)	(187		)		(53		)	(577		)	(399		)	(209		)		(108		)	(716		)
Net charge-offs/(recoveries)	490			1,589				(20		)	2,059			685			1,773				(31		)	2,427
Write-offs of PCI loans^(a)	110			—				—			110			109			—				—			109
Provision for loan losses	42			1,589				265			1,896			81			1,573				(55		)	1,599
Other	—			(5		)		8			3			—			(1		)		—			(1		)
Ending balance at June 30,	$	6,492		$	3,434			$	3,989		$	13,915		$	7,743		$	3,594			$	3,989		$	15,326

Allowance for loan losses by impairment methodology
Asset-specific^(b)	$	436		$	518		^(c)	$	147		$	1,101		$	598		$	583		^(c)	$	138		$	1,319
Formula-based	2,841			2,916				3,842			9,599			3,396			3,011				3,851			10,258
PCI	3,215			—				—			3,215			3,749			—				—			3,749
Total allowance for loan losses	$	6,492		$	3,434			$	3,989		$	13,915		$	7,743		$	3,594			$	3,989		$	15,326

Loans by impairment methodology
Asset-specific	$	9,960		$	1,685			$	908		$	12,553		$	13,191		$	2,467			$	732		$	16,390
Formula-based	263,015			123,020				337,307			723,342			224,905			123,154				320,797			668,856
PCI	43,806			—				4			43,810			50,118			—				5			50,123
Total retained loans	$	316,781		$	124,705			$	338,219		$	779,705		$	288,214		$	125,621			$	321,534		$	735,369

Impaired collateral-dependent loans
Net charge-offs	$	33		$	—			$	2		$	35		$	81		$	—			$	(5	)	$	76
Loans measured at fair value of collateral less cost to sell	2,695			—				307			3,002			3,250			—				321			3,571

Allowance for lending-related commitments
Beginning balance at January 1,	$	13		$	—			$	609		$	622		$	8		$	—			$	697		$	705
Provision for lending-related commitments	2			—				(4		)	(2		)	1			—				(58		)	(57		)
Other	—			—				—			—			—			—				—			—
Ending balance at June 30,	$	15		$	—			$	605		$	620		$	9		$	—			$	639		$	648

Allowance for lending-related commitments by impairment methodology
Asset-specific	$	—		$	—			$	55		$	55		$	—		$	—			$	43		$	43
Formula-based	15			—				550			565			9			—				596			605
Total allowance for lending-related commitments	$	15		$	—			$	605		$	620		$	9		$	—			$	639		$	648

Lending-related commitments by impairment methodology
Asset-specific	$	—		$	—			$	133		$	133		$	—		$	—			$	122		$	122
Formula-based	59,817			523,717				351,915			935,449			56,410			533,688				451,153			1,041,251
Total lending-related commitments	$	59,817		$	523,717			$	352,048		$	935,582		$	56,410		$	533,688			$	451,275		$	1,041,373


(a)	Write-offs of PCI loans are recorded against the allowance for loan losses when actual losses for a pool exceed estimated losses that were recorded as purchase accounting adjustments at the time of acquisition. A write-off of a PCI loan is recognized when the underlying loan is removed from a pool (e.g., upon liquidation).


(b)	Includes risk-rated loans that have been placed on nonaccrual status and loans that have been modified in a TDR.


(c)	The asset-specific credit card allowance for loan losses is related to loans that have been modified in a TDR; such allowance is calculated based on the loans’ original contractual interest rates and does not consider any incremental penalty rates.