Payment Status for the LHFI Portfolio (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	$ 126,266		$ 124,733
Accruing 30-89 Days Past Due	868		945
Accruing 90+ Days Past Due	1,137		1,228
Nonaccruing	925	[1],[2]	971	[1],[3]
Total	129,196	[4]	127,877	[4]
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	65,397		63,985
Accruing 30-89 Days Past Due	64		53
Accruing 90+ Days Past Due	19		25
Nonaccruing	229	[2]	247	[3]
Total	65,709		64,310
Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	41,296		41,563
Accruing 30-89 Days Past Due	275		331
Accruing 90+ Days Past Due	540		584
Nonaccruing	684	[2]	712	[3]
Total	42,795		43,190
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	19,573		19,185
Accruing 30-89 Days Past Due	529		561
Accruing 90+ Days Past Due	578		619
Nonaccruing	12	[2]	12	[3]
Total	20,692		20,377
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	58,576		57,713
Accruing 30-89 Days Past Due	56		47
Accruing 90+ Days Past Due	19		18
Nonaccruing	177	[2]	196	[3]
Total	58,828		57,974
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	5,914		5,430
Accruing 30-89 Days Past Due	6		5
Accruing 90+ Days Past Due	0		7
Nonaccruing	41	[2]	39	[3]
Total	5,961		5,481
Commercial Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	907		842
Accruing 30-89 Days Past Due	2		1
Accruing 90+ Days Past Due	0		0
Nonaccruing	11	[2]	12	[3]
Total	920		855
Residential Guaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	2,731		2,787
Accruing 30-89 Days Past Due	38		58
Accruing 90+ Days Past Due	526		571
Nonaccruing	0		0
Total	3,295		3,416
Residential Nonguaranteed [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	23,770	[5]	23,808	[6]
Accruing 30-89 Days Past Due	121	[5]	150	[6]
Accruing 90+ Days Past Due	14	[5]	13	[6]
Nonaccruing	426	[2],[5]	441	[3],[6]
Total	24,331	[5],[7]	24,412	[6],[7]
Home Equity Line of Credit [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	14,323		14,480
Accruing 30-89 Days Past Due	107		119
Accruing 90+ Days Past Due	0		0
Nonaccruing	207	[2]	210	[3]
Total	14,637	[7]	14,809	[7]
Residential Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	472		488
Accruing 30-89 Days Past Due	9		4
Accruing 90+ Days Past Due	0		0
Nonaccruing	51	[2]	61	[3]
Total	532	[7]	553	[7]
Federally Guaranteed Student Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	4,520		4,475
Accruing 30-89 Days Past Due	444		461
Accruing 90+ Days Past Due	569		609
Nonaccruing	0		0
Total	5,533		5,545
Consumer Other Direct [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	3,086		2,803
Accruing 30-89 Days Past Due	15		18
Accruing 90+ Days Past Due	2		3
Nonaccruing	6	[2]	5	[3]
Total	3,109	[8]	2,829	[8]
Consumer Indirect [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	11,268		11,189
Accruing 30-89 Days Past Due	64		75
Accruing 90+ Days Past Due	1		1
Nonaccruing	6	[2]	7	[3]
Total	11,339	[8]	11,272	[8]
Consumer Credit Card Financing Receivable [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accruing Current	699		718
Accruing 30-89 Days Past Due	6		7
Accruing 90+ Days Past Due	6		6
Nonaccruing	0		0
Total	$ 711	[8]	$ 731	[8]

[1] Does not include foreclosed real estate related to loans insured by the FHA or the VA. Proceeds due from the FHA and the VA are recorded as a receivable in other assets in the Consolidated Balance Sheets until the funds are received and the property is conveyed. The receivable amount related to proceeds due from the FHA or the VA totaled $81 million and $88 million at March 31, 2014 and December 31, 2013, respectively.

[2] Nonaccruing loans past due 90 days or more totaled $635 million. Nonaccruing loans past due fewer than 90 days include modified nonaccrual loans reported as TDRs and performing second lien loans which are classified as nonaccrual when the first lien loan is nonperforming.

[3] Nonaccruing loans past due 90 days or more totaled $653 million. Nonaccruing loans past due fewer than 90 days include modified nonaccrual loans reported as TDRs and performing second lien loans which are classified as nonaccrual when the first lien loan is nonperforming.

[4] Includes loans of consolidated VIEs of $318 million and $327 million at March 31, 2014 and December 31, 2013, respectively.

[5] Includes $299 million of loans carried at fair value, the majority of which were accruing current.

[6] Includes $302 million of loans carried at fair value, the majority of which were accruing current.

[7] Excludes $3.3 billion and $3.4 billion at March 31, 2014 and December 31, 2013, respectively, of guaranteed residential loans. At March 31, 2014 and December 31, 2013, the majority of these loans had FICO scores of 700 and above.

[8] Excludes $5.5 billion of guaranteed student loans at March 31, 2014 and December 31, 2013