Loans Loans (Tables)

6 Months Ended

Jun. 30, 2019

Receivables [Abstract]

Loan composition

The period end loan composition was as follows:

	June 30, 2019		December 31, 2018
	($ in Thousands)
Commercial and industrial	$	7,579,384	$	7,398,044
Commercial real estate — owner occupied	942,811		920,443
Commercial and business lending	8,522,194		8,318,487
Commercial real estate — investor	3,779,201		3,751,554
Real estate construction	1,394,815		1,335,031
Commercial real estate lending	5,174,016		5,086,585
Total commercial	13,696,210		13,405,072
Residential mortgage	8,277,479		8,277,712
Home equity	916,213		894,473
Other consumer	360,065		363,171
Total consumer	9,553,757		9,535,357
Total loans(a)	$	23,249,967	$	22,940,429

Commercial and consumer loans by credit quality indicator

The following table presents commercial and consumer loans by credit quality indicator at June 30, 2019:

	Pass		Special Mention		Potential Problem		Nonaccrual		Total
	($ in Thousands)
Commercial and industrial	$	7,387,549	$	49,026	$	58,658	$	84,151	$	7,579,384
Commercial real estate - owner occupied	909,641		8,362		24,237		571		942,811
Commercial and business lending	8,297,189		57,388		82,895		84,722		8,522,194
Commercial real estate - investor	3,628,197		71,753		77,766		1,485		3,779,201
Real estate construction	1,382,502		8,720		3,166		427		1,394,815
Commercial real estate lending	5,010,699		80,473		80,932		1,912		5,174,016
Total commercial	13,307,888		137,860		163,828		86,634		13,696,210
Residential mortgage	8,206,689		641		1,983		68,166		8,277,479
Home equity	903,694		652		32		11,835		916,213
Other consumer	359,487		506		—		72		360,065
Total consumer	9,469,870		1,799		2,014		80,073		9,553,757
Total loans	$	22,777,758	$	139,660	$	165,842	$	166,707	$	23,249,967

The following table presents commercial and consumer loans by credit quality indicator at December 31, 2018:

	Pass		Special Mention		Potential Problem		Nonaccrual		Total
	($ in Thousands)
Commercial and industrial	$	7,162,370	$	78,075	$	116,578	$	41,021	$	7,398,044
Commercial real estate - owner occupied	854,265		6,257		55,964		3,957		920,443
Commercial and business lending	8,016,635		84,332		172,542		44,978		8,318,487
Commercial real estate - investor	3,653,642		28,479		67,481		1,952		3,751,554
Real estate construction	1,321,447		8,771		3,834		979		1,335,031
Commercial real estate lending	4,975,089		37,249		71,315		2,931		5,086,585
Total commercial	12,991,724		121,582		243,856		47,909		13,405,072
Residential mortgage	8,203,729		434		5,975		67,574		8,277,712
Home equity	880,808		1,223		103		12,339		894,473
Other consumer	362,343		749		—		79		363,171
Total consumer	9,446,881		2,406		6,078		79,992		9,535,357
Total loans	$	22,438,605	$	123,988	$	249,935	$	127,901	$	22,940,429

Summarized details of Loans

The following table presents loans by past due status at June 30, 2019:

	Accruing
	Current		30-59 Days Past Due		60-89 Days Past Due		90 Days or More Past Due		Nonaccrual(a)		Total
	($ in Thousands)
Commercial and industrial	$	7,490,030	$	4,769	$	139	$	293	$	84,151	$	7,579,384
Commercial real estate - owner occupied	940,222		2,018		—		—		571		942,811
Commercial and business lending	8,430,252		6,787		139		293		84,722		8,522,194
Commercial real estate - investor	3,776,334		1,382		—		—		1,485		3,779,201
Real estate construction	1,394,237		131		19		—		427		1,394,815
Commercial real estate lending	5,170,572		1,513		19		—		1,912		5,174,016
Total commercial	13,600,824		8,300		159		293		86,634		13,696,210
Residential mortgage	8,199,557		9,199		558		—		68,166		8,277,479
Home equity	898,550		5,176		652		—		11,835		916,213
Other consumer	356,360		1,150		688		1,795		72		360,065
Total consumer	9,454,467		15,524		1,898		1,795		80,073		9,553,757
Total loans	$	23,055,291	$	23,824	$	2,057	$	2,088	$	166,707	$	23,249,967

(a) Of the total nonaccrual loans, $90 million, or 54%, were current with respect to payment at June 30, 2019.

The following table presents loans by past due status at December 31, 2018:

	Accruing
	Current		30-59 Days Past Due		60-89 Days Past Due		90 Days or More Past Due		Nonaccrual(a)		Total
	($ in Thousands)
Commercial and industrial	$	7,356,187	$	187	$	338	$	311	$	41,021	$	7,398,044
Commercial real estate - owner occupied	913,787		2,580		119		—		3,957		920,443
Commercial and business lending	8,269,974		2,767		457		311		44,978		8,318,487
Commercial real estate - investor	3,745,835		2,954		813		—		1,952		3,751,554
Real estate construction	1,333,722		330		—		—		979		1,335,031
Commercial real estate lending	5,079,557		3,284		813		—		2,931		5,086,585
Total commercial	13,349,531		6,051		1,270		311		47,909		13,405,072
Residential mortgage	8,200,432		9,272		434		—		67,574		8,277,712
Home equity	876,085		4,826		1,223		—		12,339		894,473
Other consumer	358,970		1,401		868		1,853		79		363,171
Total consumer	9,435,487		15,499		2,525		1,853		79,992		9,535,357
Total loans	$	22,785,019	$	21,550	$	3,795	$	2,165	$	127,901	$	22,940,429

(a) Of the total nonaccrual loans, $74 million, or 58%, were current with respect to payment at December 31, 2018.

Summarized details of impaired Loans

The following table presents impaired loans individually evaluated under ASC Topic 310, excluding $2 million of purchased credit-impaired loans, at June 30, 2019:

	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
	($ in Thousands)
Loans with a related allowance
Commercial and industrial	$	83,561	$	94,759	$	22,890	$	48,118	$	1,104
Commercial real estate — owner occupied	1,970		1,977		27		2,017		51
Commercial and business lending	85,531		96,735		22,917		50,135		1,155
Commercial real estate — investor	776		782		103		786		17
Real estate construction	417		497		56		422		14
Commercial real estate lending	1,193		1,279		159		1,208		31
Total commercial	86,724		98,015		23,076		51,343		1,186
Residential mortgage	45,856		49,110		5,693		45,953		991
Home equity	9,609		10,600		3,233		11,042		240
Other consumer	1,225		1,227		185		1,227		—
Total consumer	56,690		60,938		9,112		58,222		1,231
Total loans with a related allowance	$	143,414	$	158,952	$	32,188	$	109,565	$	2,417
Loans with no related allowance
Commercial and industrial	$	16,505	$	33,999	$	—	$	23,303	$	25
Commercial real estate — owner occupied	503		735		—		569		3
Commercial and business lending	17,007		34,734		—		23,872		28
Commercial real estate — investor	635		1,805		—		638		—
Real estate construction	—		—		—		—		—
Commercial real estate lending	635		1,805		—		638		—
Total commercial	17,642		36,539		—		24,511		28
Residential mortgage	10,416		10,584		—		8,183		178
Home equity	1,017		1,036		—		—		11
Other consumer	—		—		—		—		—
Total consumer	11,432		11,620		—		8,183		189
Total loans with no related allowance	$	29,075	$	48,159	$	—	$	32,694	$	216
Total
Commercial and industrial	$	100,066	$	128,758	$	22,890	$	71,421	$	1,129
Commercial real estate — owner occupied	2,473		2,712		27		2,586		54
Commercial and business lending	102,538		131,470		22,917		74,007		1,183
Commercial real estate — investor	1,411		2,587		103		1,424		17
Real estate construction	417		497		56		422		14
Commercial real estate lending	1,828		3,084		159		1,847		31
Total commercial	104,367		134,554		23,076		75,853		1,214
Residential mortgage	56,272		59,694		5,693		54,136		1,168
Home equity	10,626		11,636		3,233		11,042		251
Other consumer	1,225		1,227		185		1,227		—
Total consumer	68,122		72,557		9,112		66,405		1,420
Total loans(a)	$	172,489	$	207,111	$	32,188	$	142,258	$	2,633

(a) The net recorded investment (defined as recorded investment, net of the related allowance) of the impaired loans represented 68% of the unpaid principal balance at June 30, 2019.

The following table presents impaired loans individually evaluated under ASC Topic 310, excluding $5 million of purchased credit-impaired loans, at December 31, 2018: 

	Recorded Investment		Unpaid Principal Balance		Related Allowance		Average Recorded Investment		Interest Income Recognized
	($ in Thousands)
Loans with a related allowance
Commercial and industrial	$	40,747	$	42,131	$	5,721	$	52,461	$	1,167
Commercial real estate — owner occupied	2,080		2,087		24		2,179		104
Commercial and business lending	42,827		44,218		5,745		54,640		1,271
Commercial real estate — investor	799		805		28		827		38
Real estate construction	510		589		75		533		32
Commercial real estate lending	1,309		1,394		103		1,360		70
Total commercial	44,136		45,612		5,848		56,000		1,341
Residential mortgage	41,691		45,149		6,023		42,687		1,789
Home equity	9,601		10,539		3,312		10,209		566
Other consumer	1,181		1,183		121		1,184		3
Total consumer	52,473		56,871		9,456		54,080		2,358
Total loans with a related allowance	$	96,609	$	102,483	$	15,304	$	110,079	$	3,699
Loans with no related allowance
Commercial and industrial	$	22,406	$	45,024	$	—	$	21,352	$	(344	)
Commercial real estate — owner occupied	3,772		4,823		—		3,975		—
Commercial and business lending	26,178		49,847		—		25,327		(344		)
Commercial real estate — investor	1,585		2,820		—		980		68
Real estate construction	—		—		—		—		—
Commercial real estate lending	1,585		2,820		—		980		68
Total commercial	27,763		52,667		—		26,307		(276		)
Residential mortgage	8,795		9,074		—		8,790		203
Home equity	523		542		—		530		—
Other consumer	—		—		—		—		—
Total consumer	9,318		9,616		—		9,320		203
Total loans with no related allowance	$	37,081	$	62,283	$	—	$	35,627	$	(73	)
Total
Commercial and industrial	$	63,153	$	87,155	$	5,721	$	73,813	$	823
Commercial real estate — owner occupied	5,852		6,910		24		6,154		104
Commercial and business lending	69,005		94,065		5,745		79,967		927
Commercial real estate — investor	2,384		3,625		28		1,807		106
Real estate construction	510		589		75		533		32
Commercial real estate lending	2,894		4,214		103		2,340		138
Total commercial	71,899		98,279		5,848		82,307		1,065
Residential mortgage	50,486		54,223		6,023		51,477		1,992
Home equity	10,124		11,081		3,312		10,739		566
Other consumer	1,181		1,183		121		1,184		3
Total consumer	61,791		66,487		9,456		63,400		2,561
Total loans(a)	$	133,690	$	164,766	$	15,304	$	145,707	$	3,626

(a) The net recorded investment (defined as recorded investment, net of the related allowance) of the impaired loans represented 72% of the unpaid principal balance at December 31, 2018.

Nonaccrual and performing restructured loans

The following table presents nonaccrual and performing restructured loans by loan portfolio:

	June 30, 2019				December 31, 2018
	Performing Restructured Loans		Nonaccrual Restructured Loans(a)		Performing Restructured Loans		Nonaccrual Restructured Loans(a)
	($ in Thousands)
Commercial and industrial	$	16,850	$	101	$	25,478	$	249
Commercial real estate — owner occupied	1,970		—		2,080		—
Commercial real estate — investor	315		461		799		933
Real estate construction	232		185		311		198
Residential mortgage	17,645		21,213		16,036		22,279
Home equity	7,247		2,369		7,385		2,627
Other consumer	1,222		3		1,174		6
Total restructured loans	$	45,481	$	24,332	$	53,263	$	26,292

(a) Nonaccrual restructured loans have been included within nonaccrual loans

Summary of restructured loans

	Six Months Ended June 30, 2019					Six Months Ended June 30, 2018
	Number of Loans	Recorded Investment(a)		Unpaid Principal Balance(b)		Number of Loans	Recorded Investment(a)		Unpaid Principal Balance(b)
	($ in Thousands)
Commercial and industrial	1	$	196	$	196	1	$	47	$	47
Commercial real estate — investor	—	—		—		1	984		1,031
Residential mortgage	38	5,665		5,682		10	2,064		2,064
Home equity	18	499		506		10	935		949
Other consumer	1	10		10		1	5		8
Total loans modified	58	$	6,370	$	6,394	23	$	4,035	$	4,099

(a) Represents post-modification outstanding recorded investment.

(b) Represents pre-modification outstanding recorded investment.

Troubled debt restructurings subsequent redefault

The following table provides the number of loans modified in a troubled debt restructuring during the previous twelve months which subsequently defaulted during the six months ended June 30, 2019 and 2018 and the recorded investment in these restructured loans as of June 30, 2019 and 2018:

	Six Months Ended June 30, 2019			Six Months Ended June 30, 2018
	Number of Loans	Recorded Investment		Number of Loans	Recorded Investment
	($ in Thousands)
Commercial and industrial	—	$	—	3	$	—
Residential mortgage	16	2,813		8	2,219
Home equity	14	477		21	1,409
Total loans modified	30	$	3,290	32	$	3,628

Changes in the allowance for loan losses by portfolio segment

The allowance related to the oil and gas portfolio was $25 million, or 3.8% of total oil and gas loans, and $12 million, or 1.6% of total oil and gas loans, at June 30, 2019 and December 31, 2018, respectively.

($ in Millions)	Six Months Ended June 30, 2019			Year Ended December 31, 2018
Balance at beginning of period	$	12		$	27
Charge offs	(17		)	(24		)
Recoveries	4			6
Net Charge offs	(13		)	(17		)
Provision for loan losses	26			2
Balance at end of period	$	25		$	12
Allowance for loan losses
Individually evaluated for impairment	$	16		$	—
Collectively evaluated for impairment	9			12
Total allowance for loan losses	$	25		$	12
Loans
Individually evaluated for impairment	$	63		$	22
Collectively evaluated for impairment	594			725
Total loans	$	657		$	747

The following table presents a summary of the changes in the allowance for loan losses by portfolio segment for the six months ended June 30, 2019:

($ in Thousands)	Commercial and industrial			Commercial real estate - owner occupied			Commercial real estate -  investor		Real estate construction			Residential mortgage			Home equity			Other consumer			Total
December 31, 2018	$	108,835		$	9,255		$	40,844	$	28,240		$	25,595		$	19,266		$	5,988		$	238,023
Charge offs	(26,255		)	(222		)	—		(60		)	(1,260		)	(725		)	(2,726		)	(31,247		)
Recoveries	6,650			1,312			34		211			438			1,273			467			10,384
Net Charge offs	(19,605		)	1,089			34		151			(822		)	548			(2,259		)	(20,864		)
Provision for loan losses	23,970			(1,110		)	10		(1,267		)	(3,421		)	(4,241		)	2,558			16,500
June 30, 2019	$	113,199		$	9,235		$	40,888	$	27,124		$	21,352		$	15,573		$	6,287		$	233,659
Allowance for loan losses
Individually evaluated for impairment	$	22,890		$	27		$	103	$	56		$	5,693		$	3,233		$	185		$	32,188
Collectively evaluated for impairment	90,309			9,207			40,785		27,068			15,659			12,340			6,102			201,470
Total allowance for loan losses	$	113,199		$	9,235		$	40,888	$	27,124		$	21,352		$	15,573		$	6,287		$	233,659
Loans
Individually evaluated for impairment	$	100,066		$	2,473		$	1,411	$	417		$	56,272		$	10,626		$	1,225		$	172,489
Collectively evaluated for impairment	7,478,790			939,647			3,777,511		1,394,384			8,220,602			905,560			358,841			23,075,334
Acquired and accounted for under ASC 310-30(a)	528			691			279		14			605			27			—			2,145
Total loans	$	7,579,384		$	942,811		$	3,779,201	$	1,394,815		$	8,277,479		$	916,213		$	360,065		$	23,249,967

(a) Loans acquired in business combinations and accounted for under ASC Subtopic 310-30 "Receivables — Loans and Debt Securities Acquired with Deteriorated Credit Quality."

For comparison purposes, a summary of the changes in the allowance for loan losses by portfolio segment for the year ended December 31, 2018, was as follows:

($ in Thousands)	Commercial and industrial			Commercial real estate - owner occupied			Commercial real estate -  investor			Real estate construction			Residential mortgage			Home equity			Other consumer			Total
December 31, 2017	$	123,068		$	10,352		$	41,059		$	34,370		$	29,607		$	22,126		$	5,298		$	265,880
Charge offs	(30,837		)	(1,363		)	(7,914		)	(298		)	(1,627		)	(3,236		)	(5,261		)	(50,536		)
Recoveries	13,714			639			668			446			1,271			2,628			812			20,179
Net Charge offs	(17,123		)	(724		)	(7,246		)	149			(355		)	(608		)	(4,448		)	(30,358		)
Provision for loan losses	2,890			(373		)	7,031			(6,279		)	(3,657		)	(2,252		)	5,138			2,500
December 31, 2018	$	108,835		$	9,255		$	40,844		$	28,240		$	25,595		$	19,266		$	5,988		$	238,023
Allowance for loan losses
Individually evaluated for impairment	$	5,721		$	24		$	28		$	75		$	6,023		$	3,312		$	121		$	15,304
Collectively evaluated for impairment	103,114			9,231			40,816			28,165			19,572			15,954			5,867			222,719
Total allowance for loan losses	$	108,835		$	9,255		$	40,844		$	28,240		$	25,595		$	19,266		$	5,988		$	238,023
Loans
Individually evaluated for impairment	$	63,153		$	5,852		$	2,384		$	510		$	50,486		$	10,124		$	1,181		$	133,690
Collectively evaluated for impairment	7,331,898			913,708			3,748,883			1,334,500			8,226,642			884,266			361,990			22,801,887
Acquired and accounted for under ASC 310-30(a)	2,994			883			287			21			584			83			—			4,853
Total loans	$	7,398,044		$	920,443		$	3,751,554		$	1,335,031		$	8,277,712		$	894,473		$	363,171		$	22,940,429

(a) Loans acquired in business combinations and accounted for under ASC Subtopic 310-30 "Receivables — Loans and Debt Securities Acquired with Deteriorated Credit Quality."

Changes in the allowance for unfunded commitments

The following table presents a summary of the changes in the allowance for unfunded commitments:

	Six Months Ended June 30, 2019			Year Ended December 31, 2018
	($ in Thousands)
Allowance for Unfunded Commitments
Balance at beginning of period	$	24,336		$	24,400
Provision for unfunded commitments	(2,500		)	(2,500		)
Amount recorded at acquisition	70			2,436
Balance at end of period	$	21,907		$	24,336

Changes In accretable yield for purchased credit impaired

Changes in the accretable yield for loans acquired and accounted for under ASC Topic 310-30 were as follows for the six months ended June 30, 2019 and for the year ended December 31, 2018:

	Six Months Ended June 30, 2019			Year Ended December 31, 2018
	($ in Thousands)
Changes in Accretable Yield
Balance at beginning of period	$	1,482		$	—
Purchases	—			4,853
Accretion	(812		)	(4,954		)
Net reclassification from non-accretable yield	23			1,605
Other(a)	—			(22		)
Balance at end of period	$	694		$	1,482

(a) Primarily includes charge-offs which are accounted for under ASC Subtopic 310-30 "Receivables — Loans and Debt Securities Acquired with Deteriorated Credit Quality."