CREDIT QUALITY AND THE ALLOWANCE FOR CREDIT LOSSES - Amortized Cost Basis by Credit Quality Indicator (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Total	[1]	$ 151,320		$ 151,320		$ 156,662
Gross charge-offs
Total		189	$ 91	360	$ 192
Commercial
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		2,978		2,978		14,715
Year two		14,125		14,125		15,843
Year three		14,337		14,337		6,633
Year four		5,727		5,727		6,280
Year five		5,170		5,170		4,245
Prior to year five		9,445		9,445		7,076
Within the Revolving Period		26,327		26,327		27,221
Converted to Term		170		170		167
Total		78,279		78,279		82,180
Gross charge-offs
Year one				0
Year two				1
Year three				32
Year four				26
Year five				7
Prior to year five				43
Within the Revolving Period				29
Converted to Term				0
Total		79	13	138	27
Commercial | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		2,967		2,967		14,334
Year two		12,821		12,821		15,274
Year three		13,246		13,246		6,113
Year four		4,810		4,810		5,239
Year five		3,932		3,932		3,607
Prior to year five		7,544		7,544		5,833
Within the Revolving Period		24,826		24,826		26,099
Converted to Term		161		161		151
Total		70,307		70,307		76,650
Commercial | Special Mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		8		8		129
Year two		667		667		313
Year three		640		640		225
Year four		345		345		470
Year five		533		533		148
Prior to year five		360		360		269
Within the Revolving Period		698		698		426
Converted to Term		1		1		0
Total		3,252		3,252		1,980
Commercial | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		3		3		242
Year two		515		515		240
Year three		419		419		285
Year four		562		562		511
Year five		596		596		449
Prior to year five		1,283		1,283		959
Within the Revolving Period		705		705		620
Converted to Term		4		4		14
Total		4,087		4,087		3,320
Commercial | Doubtful
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		10
Year two		122		122		16
Year three		32		32		10
Year four		10		10		60
Year five		109		109		41
Prior to year five		258		258		15
Within the Revolving Period		98		98		76
Converted to Term		4		4		2
Total		633		633		230
Commercial | Commercial and industrial
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		1,954		1,954		8,588
Year two		7,780		7,780		8,890
Year three		7,194		7,194		2,548
Year four		1,875		1,875		2,408
Year five		1,586		1,586		1,522
Prior to year five		3,212		3,212		2,468
Within the Revolving Period		24,271		24,271		25,248
Converted to Term		166		166		164
Total		48,038		48,038		51,836
Gross charge-offs
Year one				0
Year two				1
Year three				32
Year four				4
Year five				1
Prior to year five				5
Within the Revolving Period				29
Converted to Term				0
Total				72
Commercial | Commercial and industrial | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		1,946		1,946		8,304
Year two		7,317		7,317		8,469
Year three		6,579		6,579		2,224
Year four		1,502		1,502		2,074
Year five		1,382		1,382		1,334
Prior to year five		2,553		2,553		1,952
Within the Revolving Period		22,996		22,996		24,211
Converted to Term		157		157		148
Total		44,432		44,432		48,716
Commercial | Commercial and industrial | Special Mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		8		8		124
Year two		145		145		189
Year three		256		256		120
Year four		137		137		74
Year five		64		64		48
Prior to year five		186		186		153
Within the Revolving Period		493		493		364
Converted to Term		1		1		0
Total		1,290		1,290		1,072
Commercial | Commercial and industrial | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		150
Year two		287		287		218
Year three		331		331		203
Year four		232		232		255
Year five		134		134		99
Prior to year five		363		363		349
Within the Revolving Period		685		685		597
Converted to Term		4		4		14
Total		2,036		2,036		1,885
Commercial | Commercial and industrial | Doubtful
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		10
Year two		31		31		14
Year three		28		28		1
Year four		4		4		5
Year five		6		6		41
Prior to year five		110		110		14
Within the Revolving Period		97		97		76
Converted to Term		4		4		2
Total		280		280		163
Commercial | Commercial real estate
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		958		958		5,860
Year two		6,109		6,109		6,581
Year three		6,818		6,818		3,830
Year four		3,632		3,632		3,764
Year five		3,499		3,499		2,594
Prior to year five		5,871		5,871		4,260
Within the Revolving Period		2,056		2,056		1,973
Converted to Term		4		4		3
Total		28,947		28,947		28,865
Gross charge-offs
Year one				0
Year two				0
Year three				0
Year four				22
Year five				6
Prior to year five				38
Within the Revolving Period				0
Converted to Term				0
Total				66
Commercial | Commercial real estate | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		958		958		5,767
Year two		5,314		5,314		6,442
Year three		6,361		6,361		3,639
Year four		3,098		3,098		3,066
Year five		2,474		2,474		2,145
Prior to year five		4,633		4,633		3,536
Within the Revolving Period		1,830		1,830		1,888
Converted to Term		4		4		3
Total		24,672		24,672		26,486
Commercial | Commercial real estate | Special Mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		1
Year two		489		489		119
Year three		378		378		103
Year four		205		205		390
Year five		467		467		99
Prior to year five		173		173		113
Within the Revolving Period		205		205		62
Converted to Term		0		0		0
Total		1,917		1,917		887
Commercial | Commercial real estate | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		92
Year two		215		215		18
Year three		78		78		79
Year four		323		323		253
Year five		455		455		350
Prior to year five		917		917		610
Within the Revolving Period		20		20		23
Converted to Term		0		0		0
Total		2,008		2,008		1,425
Commercial | Commercial real estate | Doubtful
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		0
Year two		91		91		2
Year three		1		1		9
Year four		6		6		55
Year five		103		103		0
Prior to year five		148		148		1
Within the Revolving Period		1		1		0
Converted to Term		0		0		0
Total		350		350		67
Commercial | Leases
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		66		66		267
Year two		236		236		372
Year three		325		325		255
Year four		220		220		108
Year five		85		85		129
Prior to year five		362		362		348
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		1,294		1,294		1,479
Gross charge-offs
Year one				0
Year two				0
Year three				0
Year four				0
Year five				0
Prior to year five				0
Within the Revolving Period				0
Converted to Term				0
Total				0
Commercial | Leases | Pass
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		63		63		263
Year two		190		190		363
Year three		306		306		250
Year four		210		210		99
Year five		76		76		128
Prior to year five		358		358		345
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		1,203		1,203		1,448
Commercial | Leases | Special Mention
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		4
Year two		33		33		5
Year three		6		6		2
Year four		3		3		6
Year five		2		2		1
Prior to year five		1		1		3
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		45		45		21
Commercial | Leases | Substandard
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		3		3		0
Year two		13		13		4
Year three		10		10		3
Year four		7		7		3
Year five		7		7		0
Prior to year five		3		3		0
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		43		43		10
Commercial | Leases | Doubtful
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		0
Year two		0		0		0
Year three		3		3		0
Year four		0		0		0
Year five		0		0		0
Prior to year five		0		0		0
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		3		3		0
Retail
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		2,405		2,405		11,158
Year two		10,899		10,899		18,251
Year three		16,808		16,808		11,083
Year four		10,057		10,057		5,223
Year five		4,602		4,602		2,457
Prior to year five		10,649		10,649		9,401
Within the Revolving Period		16,572		16,572		15,803
Converted to Term		1,049		1,049		1,106
Total		73,041		73,041		74,482
Gross charge-offs
Year one				19
Year two				38
Year three				34
Year four				22
Year five				21
Prior to year five				36
Within the Revolving Period				52
Converted to Term				0
Total		110	$ 78	222	$ 165
Retail | Residential mortgages
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		1,304		1,304		5,421
Year two		5,732		5,732		9,071
Year three		8,957		8,957		5,519
Year four		5,363		5,363		2,432
Year five		2,354		2,354		1,017
Prior to year five		7,059		7,059		6,461
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		30,769		30,769		29,921
Gross charge-offs
Year one				0
Year two				0
Year three				0
Year four				0
Year five				1
Prior to year five				1
Within the Revolving Period				0
Converted to Term				0
Total				2
Retail | Home equity
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		7
Year two		7		7		9
Year three		8		8		8
Year four		7		7		36
Year five		34		34		57
Prior to year five		485		485		496
Within the Revolving Period		12,908		12,908		12,340
Converted to Term		1,038		1,038		1,090
Total		14,487		14,487		14,043
Gross charge-offs
Year one				0
Year two				0
Year three				0
Year four				0
Year five				0
Prior to year five				2
Within the Revolving Period				3
Converted to Term				0
Total				5
Retail | Automobile
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		593		593		3,276
Year two		2,785		2,785		5,141
Year three		4,240		4,240		2,028
Year four		1,587		1,587		1,160
Year five		838		838		474
Prior to year five		385		385		213
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		10,428		10,428		12,292
Gross charge-offs
Year one				0
Year two				15
Year three				21
Year four				7
Year five				6
Prior to year five				5
Within the Revolving Period				0
Converted to Term				0
Total				54
Retail | Education
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		354		354		1,712
Year two		1,824		1,824		3,586
Year three		3,332		3,332		3,131
Year four		2,853		2,853		1,400
Year five		1,258		1,258		820
Prior to year five		2,625		2,625		2,159
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		12,246		12,246		12,808
Gross charge-offs
Year one				0
Year two				3
Year three				6
Year four				10
Year five				7
Prior to year five				23
Within the Revolving Period				0
Converted to Term				0
Total				49
Retail | Other retail
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		154		154		742
Year two		551		551		444
Year three		271		271		397
Year four		247		247		195
Year five		118		118		89
Prior to year five		95		95		72
Within the Revolving Period		3,664		3,664		3,463
Converted to Term		11		11		16
Total		5,111		5,111		5,418
Gross charge-offs
Year one				19
Year two				20
Year three				7
Year four				5
Year five				7
Prior to year five				5
Within the Revolving Period				49
Converted to Term				0
Total				112
Greater than 800 | Retail
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		614		614		3,516
Year two		4,204		4,204		8,226
Year three		8,214		8,214		5,389
Year four		5,220		5,220		2,251
Year five		2,095		2,095		924
Prior to year five		4,860		4,860		4,340
Within the Revolving Period		5,527		5,527		5,449
Converted to Term		250		250		267
Total		30,984		30,984		30,362
Greater than 800 | Retail | Residential mortgages
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		381		381		2,132
Year two		2,785		2,785		4,943
Year three		5,168		5,168		3,143
Year four		3,187		3,187		1,180
Year five		1,173		1,173		363
Prior to year five		3,305		3,305		3,081
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		15,999		15,999		14,842
Greater than 800 | Retail | Home equity
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		4
Year two		4		4		5
Year three		5		5		2
Year four		2		2		5
Year five		5		5		6
Prior to year five		100		100		110
Within the Revolving Period		5,005		5,005		4,958
Converted to Term		250		250		267
Total		5,371		5,371		5,357
Greater than 800 | Retail | Automobile
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		92		92		650
Year two		606		606		1,453
Year three		1,274		1,274		584
Year four		478		478		324
Year five		238		238		120
Prior to year five		97		97		54
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		2,785		2,785		3,185
Greater than 800 | Retail | Education
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		109		109		548
Year two		665		665		1,720
Year three		1,702		1,702		1,567
Year four		1,495		1,495		694
Year five		649		649		410
Prior to year five		1,326		1,326		1,068
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		5,946		5,946		6,007
Greater than 800 | Retail | Other retail
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		32		32		182
Year two		144		144		105
Year three		65		65		93
Year four		58		58		48
Year five		30		30		25
Prior to year five		32		32		27
Within the Revolving Period		522		522		491
Converted to Term		0		0		0
Total		883		883		971
740-799 | Retail
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		1,072		1,072		4,305
Year two		3,873		3,873		6,084
Year three		5,278		5,278		3,557
Year four		3,070		3,070		1,539
Year five		1,312		1,312		695
Prior to year five		2,745		2,745		2,422
Within the Revolving Period		5,556		5,556		5,324
Converted to Term		252		252		275
Total		23,158		23,158		24,201
740-799 | Retail | Residential mortgages
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		696		696		2,376
Year two		2,137		2,137		2,991
Year three		2,715		2,715		1,660
Year four		1,510		1,510		638
Year five		609		609		257
Prior to year five		1,759		1,759		1,635
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		9,426		9,426		9,557
740-799 | Retail | Home equity
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		2
Year two		2		2		2
Year three		2		2		1
Year four		1		1		4
Year five		4		4		6
Prior to year five		94		94		97
Within the Revolving Period		4,514		4,514		4,350
Converted to Term		251		251		274
Total		4,868		4,868		4,736
740-799 | Retail | Automobile
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		162		162		962
Year two		810		810		1,606
Year three		1,306		1,306		649
Year four		502		502		343
Year five		246		246		134
Prior to year five		104		104		56
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		3,130		3,130		3,750
740-799 | Retail | Education
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		166		166		735
Year two		758		758		1,351
Year three		1,176		1,176		1,126
Year four		982		982		486
Year five		413		413		267
Prior to year five		755		755		609
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		4,250		4,250		4,574
740-799 | Retail | Other retail
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		48		48		230
Year two		166		166		134
Year three		79		79		121
Year four		75		75		68
Year five		40		40		31
Prior to year five		33		33		25
Within the Revolving Period		1,042		1,042		974
Converted to Term		1		1		1
Total		1,484		1,484		1,584
680-739 | Retail
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		490		490		2,228
Year two		1,844		1,844		2,619
Year three		2,191		2,191		1,422
Year four		1,179		1,179		790
Year five		655		655		386
Prior to year five		1,467		1,467		1,311
Within the Revolving Period		3,550		3,550		3,289
Converted to Term		226		226		238
Total		11,602		11,602		12,283
680-739 | Retail | Residential mortgages
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		198		198		769
Year two		656		656		899
Year three		835		835		502
Year four		472		472		308
Year five		292		292		149
Prior to year five		919		919		851
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		3,372		3,372		3,478
680-739 | Retail | Home equity
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		1
Year two		0		0		1
Year three		1		1		1
Year four		1		1		6
Year five		6		6		11
Prior to year five		109		109		114
Within the Revolving Period		2,490		2,490		2,296
Converted to Term		223		223		234
Total		2,830		2,830		2,664
680-739 | Retail | Automobile
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		186		186		920
Year two		737		737		1,187
Year three		922		922		460
Year four		343		343		254
Year five		178		178		102
Prior to year five		81		81		44
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		2,447		2,447		2,967
680-739 | Retail | Education
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		64		64		363
Year two		326		326		423
Year three		367		367		356
Year four		300		300		170
Year five		148		148		103
Prior to year five		338		338		288
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		1,543		1,543		1,703
680-739 | Retail | Other retail
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		42		42		175
Year two		125		125		109
Year three		66		66		103
Year four		63		63		52
Year five		31		31		21
Prior to year five		20		20		14
Within the Revolving Period		1,060		1,060		993
Converted to Term		3		3		4
Total		1,410		1,410		1,471
620-679 | Retail
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		184		184		841
Year two		676		676		896
Year three		700		700		456
Year four		347		347		336
Year five		269		269		214
Prior to year five		760		760		649
Within the Revolving Period		1,098		1,098		993
Converted to Term		143		143		147
Total		4,177		4,177		4,532
620-679 | Retail | Residential mortgages
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		27		27		125
Year two		120		120		168
Year three		151		151		135
Year four		107		107		138
Year five		120		120		99
Prior to year five		495		495		422
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		1,020		1,020		1,087
620-679 | Retail | Home equity
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		0
Year two		1		1		1
Year three		0		0		2
Year four		2		2		9
Year five		9		9		16
Prior to year five		92		92		93
Within the Revolving Period		648		648		558
Converted to Term		140		140		143
Total		892		892		822
620-679 | Retail | Automobile
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		122		122		554
Year two		418		418		586
Year three		445		445		205
Year four		152		152		133
Year five		95		95		62
Prior to year five		50		50		28
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		1,282		1,282		1,568
620-679 | Retail | Education
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		10		10		54
Year two		62		62		76
Year three		66		66		62
Year four		55		55		38
Year five		34		34		29
Prior to year five		116		116		102
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		343		343		361
620-679 | Retail | Other retail
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		25		25		108
Year two		75		75		65
Year three		38		38		52
Year four		31		31		18
Year five		11		11		8
Prior to year five		7		7		4
Within the Revolving Period		450		450		435
Converted to Term		3		3		4
Total		640		640		694
Less than 620 | Retail
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		38		38		246
Year two		298		298		423
Year three		423		423		254
Year four		238		238		304
Year five		268		268		236
Prior to year five		761		761		620
Within the Revolving Period		463		463		368
Converted to Term		177		177		178
Total		2,666		2,666		2,629
Less than 620 | Retail | Residential mortgages
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		2		2		17
Year two		34		34		68
Year three		86		86		77
Year four		86		86		165
Year five		157		157		147
Prior to year five		564		564		455
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		929		929		929
Less than 620 | Retail | Home equity
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		0
Year two		0		0		0
Year three		0		0		2
Year four		1		1		12
Year five		10		10		18
Prior to year five		90		90		82
Within the Revolving Period		251		251		178
Converted to Term		174		174		172
Total		526		526		464
Less than 620 | Retail | Automobile
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		30		30		188
Year two		214		214		309
Year three		293		293		130
Year four		112		112		106
Year five		81		81		56
Prior to year five		53		53		31
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		783		783		820
Less than 620 | Retail | Education
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		1		1		6
Year two		13		13		16
Year three		21		21		20
Year four		21		21		12
Year five		14		14		11
Prior to year five		51		51		50
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		121		121		115
Less than 620 | Retail | Other retail
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		5		5		35
Year two		37		37		30
Year three		23		23		25
Year four		18		18		9
Year five		6		6		4
Prior to year five		3		3		2
Within the Revolving Period		212		212		190
Converted to Term		3		3		6
Total		307		307		301
No FICO available | Retail
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		7		7		22
Year two		4		4		3
Year three		2		2		5
Year four		3		3		3
Year five		3		3		2
Prior to year five		56		56		59
Within the Revolving Period		378		378		380
Converted to Term		1		1		1
Total		454		454		475
No FICO available | Retail | Residential mortgages
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		0		0		2
Year two		0		0		2
Year three		2		2		2
Year four		1		1		3
Year five		3		3		2
Prior to year five		17		17		17
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		23		23		28
No FICO available | Retail | Automobile
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		1		1		2
Year two		0		0		0
Year three		0		0		0
Year four		0		0		0
Year five		0		0		0
Prior to year five		0		0		0
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		1		1		2
No FICO available | Retail | Education
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		4		4		6
Year two		0		0		0
Year three		0		0		0
Year four		0		0		0
Year five		0		0		0
Prior to year five		39		39		42
Within the Revolving Period		0		0		0
Converted to Term		0		0		0
Total		43		43		48
No FICO available | Retail | Other retail
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract]
Year one		2		2		12
Year two		4		4		1
Year three		0		0		3
Year four		2		2		0
Year five		0		0		0
Prior to year five		0		0		0
Within the Revolving Period		378		378		380
Converted to Term		1		1		1
Total		$ 387		$ 387		$ 397

[1] Includes amounts in consolidated VIEs. See Note 6 for additional information.