Outstanding Loans and Leases (Details) (USD $)	Sep. 30, 2011		Dec. 31, 2010
Outstanding Loans and Leases
30 to 59 Days Past Due	$ 9,328,000,000	[1],[2]	$ 10,952,000,000	[1],[2]
60 to 89 Days Past Due	5,812,000,000		6,733,000,000
90 Days or More Past Due	44,226,000,000		46,505,000,000
Total Past Due 30 Days or More	59,366,000,000		64,190,000,000
Total Current or Less Than 30 Days Past Due	829,293,000,000		837,891,000,000
Purchased Credit - impaired	32,648,000,000		35,038,000,000
Loans Receivable, Fair Value Disclosure	11,224,000,000		3,321,000,000
Total Outstandings	932,531,000,000		940,440,000,000
Outstanding Loans and Leases (Textuals) [Abstract]
Loans and leases receivable Purchased Credit Impaired home loans from acquisition			1,600,000,000
Number of Basis point of the original pool balance to be required to reimburse the Mezzanine risk protection	10
Mezzanine risk protection	866,000,000		1,100,000,000
Long term credit protection agreements	21,400,000,000		12,900,000,000
Receivables from synthetic securitizations for reimbursement of losses	390,000,000		722,000,000
Residential Mortgage loans under mezzanine risk protection agreements	35,500,000,000		53,900,000,000
Core Sub Portfolio Segment [Member] | Residential Portfolio Segment [Member] | Residential Mortgage [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	1,833,000,000		1,160,000,000
60 to 89 Days Past Due	736,000,000		236,000,000
90 Days or More Past Due	2,398,000,000		1,255,000,000
Total Past Due 30 Days or More	4,967,000,000		2,651,000,000
Total Current or Less Than 30 Days Past Due	174,154,000,000		164,276,000,000
Total Outstandings	179,121,000,000	[3],[4],[5]	166,927,000,000	[3],[4],[6]
Core Sub Portfolio Segment [Member] | Residential Portfolio Segment [Member] | Home Equity [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	271,000,000		186,000,000
60 to 89 Days Past Due	152,000,000		12,000,000
90 Days or More Past Due	324,000,000		105,000,000
Total Past Due 30 Days or More	747,000,000		303,000,000
Total Current or Less Than 30 Days Past Due	67,509,000,000		71,216,000,000
Total Outstandings	68,256,000,000	[3],[4]	71,519,000,000	[3],[4]
Legacy Asset Servicing Sub Portfolio Segment [Member] | Residential Portfolio Segment [Member] | Residential Mortgage [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	3,632,000,000		3,999,000,000
60 to 89 Days Past Due	2,358,000,000		2,879,000,000
90 Days or More Past Due	32,504,000,000		31,985,000,000
Total Past Due 30 Days or More	38,494,000,000		38,863,000,000
Total Current or Less Than 30 Days Past Due	38,636,000,000		41,591,000,000
Purchased Credit - impaired	10,265,000,000		10,592,000,000
Total Outstandings	87,395,000,000		91,046,000,000
Legacy Asset Servicing Sub Portfolio Segment [Member] | Residential Portfolio Segment [Member] | Home Equity [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	877,000,000		1,096,000,000
60 to 89 Days Past Due	529,000,000		792,000,000
90 Days or More Past Due	1,703,000,000		2,186,000,000
Total Past Due 30 Days or More	3,109,000,000		4,074,000,000
Total Current or Less Than 30 Days Past Due	44,229,000,000		49,798,000,000
Purchased Credit - impaired	12,142,000,000		12,590,000,000
Total Outstandings	59,480,000,000		66,462,000,000
Legacy Asset Servicing Sub Portfolio Segment [Member] | Residential Portfolio Segment [Member] | Financing Receivable Recorded Investment Class Of Financing Receivable Discontinued Real Estate [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	51,000,000		68,000,000
60 to 89 Days Past Due	27,000,000		39,000,000
90 Days or More Past Due	378,000,000		419,000,000
Total Past Due 30 Days or More	456,000,000		526,000,000
Total Current or Less Than 30 Days Past Due	844,000,000		930,000,000
Purchased Credit - impaired	10,241,000,000		11,652,000,000
Total Outstandings	11,541,000,000	[7]	13,108,000,000	[8]
Outstanding Loans and Leases (Textuals) [Abstract]
Pay option loans	10,300,000,000		11,800,000,000
Subprime loans	1,200,000,000		1,300,000,000
Consumer Including Residential Mortgage Portfolio Segment [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	8,784,000,000	[1],[2]
60 to 89 Days Past Due	5,185,000,000	[2]
90 Days or More Past Due	40,652,000,000	[9]
Total Past Due 30 Days or More	54,621,000,000
Total Current or Less Than 30 Days Past Due	530,697,000,000	[10]
Purchased Credit - impaired	32,648,000,000	[11]
Loans Receivable, Fair Value Disclosure	4,741,000,000
Total Outstandings	622,707,000,000
Residential Portfolio Segment [Member] | Residential Mortgage [Member]
Outstanding Loans and Leases
Loans Receivable, Fair Value Disclosure	1,300,000,000
Residential Portfolio Segment [Member] | Financing Receivable Recorded Investment Class Of Financing Receivable Discontinued Real Estate [Member]
Outstanding Loans and Leases
Loans Receivable, Fair Value Disclosure	3,400,000,000
Consumer Portfolio Segment [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	8,784,000,000		9,497,000,000	[12]
60 to 89 Days Past Due	5,185,000,000		6,016,000,000	[12]
90 Days or More Past Due	40,652,000,000		41,023,000,000	[13]
Total Past Due 30 Days or More	54,621,000,000		56,536,000,000
Total Current or Less Than 30 Days Past Due	530,697,000,000		552,080,000,000	[14]
Purchased Credit - impaired	32,648,000,000		34,834,000,000	[15]
Total Outstandings	617,966,000,000		643,450,000,000
Consumer Portfolio Segment [Member] | Consumer Credit Card Financing Receivable [Member] | UNITED STATES
Outstanding Loans and Leases
30 to 59 Days Past Due	1,079,000,000		1,398,000,000
60 to 89 Days Past Due	813,000,000		1,195,000,000
90 Days or More Past Due	2,128,000,000		3,320,000,000
Total Past Due 30 Days or More	4,020,000,000		5,913,000,000
Total Current or Less Than 30 Days Past Due	98,783,000,000		107,872,000,000
Total Outstandings	102,803,000,000		113,785,000,000
Consumer Portfolio Segment [Member] | Consumer Credit Card Financing Receivable [Member] | Foreign [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	215,000,000		439,000,000
60 to 89 Days Past Due	177,000,000		316,000,000
90 Days or More Past Due	416,000,000		599,000,000
Total Past Due 30 Days or More	808,000,000		1,354,000,000
Total Current or Less Than 30 Days Past Due	15,278,000,000		26,111,000,000
Total Outstandings	16,086,000,000		27,465,000,000
Consumer Portfolio Segment [Member] | Direct And Indirect Consumer Financing Receivable [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	770,000,000		1,086,000,000
60 to 89 Days Past Due	374,000,000		522,000,000
90 Days or More Past Due	775,000,000		1,104,000,000
Total Past Due 30 Days or More	1,919,000,000		2,712,000,000
Total Current or Less Than 30 Days Past Due	88,555,000,000		87,596,000,000
Total Outstandings	90,474,000,000	[16]	90,308,000,000	[17]
Outstanding Loans and Leases (Textuals) [Abstract]
Dealer financial services loans in outstanding direct indirect consumer loans	43,600,000,000		43,300,000,000
Consumer Lending within Direct Indirect consumer loans	8,900,000,000		12,400,000,000
Domestic Securities based lending margin loans within direct indirect consumer loans	22,300,000,000		16,600,000,000
Student Loans within Direct Indirect consumer loans	6,100,000,000		6,800,000,000
Foreign Consumer within Direct Indirect consumer loans	7,800,000,000		8,000,000,000
Other Consumer Loans within Direct Indirect consumer loans	1,800,000,000		3,200,000,000
Consumer Portfolio Segment [Member] | Consumer Other Financing Receivable [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	56,000,000		65,000,000
60 to 89 Days Past Due	19,000,000		25,000,000
90 Days or More Past Due	26,000,000		50,000,000
Total Past Due 30 Days or More	101,000,000		140,000,000
Total Current or Less Than 30 Days Past Due	2,709,000,000		2,690,000,000
Total Outstandings	2,810,000,000	[18],[19]	2,830,000,000	[18],[20]
Outstanding Loans and Leases (Textuals) [Abstract]
Consumer Finance	1,700,000,000		1,900,000,000
Consumer Overdrafts	94,000,000		88,000,000
Consumer Portfolio Segment [Member] | Consumer Other Financing Receivable [Member] | Foreign [Member]
Outstanding Loans and Leases (Textuals) [Abstract]
Consumer Finance	992,000,000		803,000,000
Commercial Portfolio Segment [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	544,000,000	[1],[2]	1,455,000,000	[1],[2]
60 to 89 Days Past Due	627,000,000		717,000,000
90 Days or More Past Due	3,574,000,000		5,482,000,000
Total Past Due 30 Days or More	4,745,000,000		7,654,000,000
Total Current or Less Than 30 Days Past Due	298,596,000,000		285,811,000,000
Purchased Credit - impaired			204,000,000
Loans Receivable, Fair Value Disclosure	6,483,000,000		3,321,000,000
Loans and Leases Receivable, Net of Deferred Income and Loans At Fair Value	303,341,000,000		293,669,000,000
Total Outstandings	309,824,000,000		296,990,000,000
Commercial Portfolio Segment [Member] | Commercial Financing Receivable Member | UNITED STATES
Outstanding Loans and Leases
30 to 59 Days Past Due	269,000,000		605,000,000
60 to 89 Days Past Due	204,000,000		341,000,000
90 Days or More Past Due	1,056,000,000		1,453,000,000
Total Past Due 30 Days or More	1,529,000,000		2,399,000,000
Total Current or Less Than 30 Days Past Due	177,477,000,000		173,185,000,000
Loans Receivable, Fair Value Disclosure	1,900,000,000		1,600,000,000
Total Outstandings	179,006,000,000	[21]	175,586,000,000	[21]
Commercial Portfolio Segment [Member] | Commercial Financing Receivable Member | Foreign [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	0		25,000,000
60 to 89 Days Past Due	0		2,000,000
90 Days or More Past Due	1,000,000		6,000,000
Total Past Due 30 Days or More	1,000,000		33,000,000
Total Current or Less Than 30 Days Past Due	48,460,000,000		31,955,000,000
Purchased Credit - impaired			41,000,000
Loans Receivable, Fair Value Disclosure	4,500,000,000		1,700,000,000
Total Outstandings	48,461,000,000	[21]	32,029,000,000	[21]
Commercial Portfolio Segment [Member] | Us Commercial [Member]
Outstanding Loans and Leases
Purchased Credit - impaired			2,000,000
Commercial Portfolio Segment [Member] | Commercial Real Estate Receivable [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	102,000,000		535,000,000
60 to 89 Days Past Due	275,000,000		186,000,000
90 Days or More Past Due	2,204,000,000		3,554,000,000
Total Past Due 30 Days or More	2,581,000,000		4,275,000,000
Total Current or Less Than 30 Days Past Due	38,307,000,000		44,957,000,000
Purchased Credit - impaired			161,000,000
Loans Receivable, Fair Value Disclosure	75,000,000
Total Outstandings	40,888,000,000	[21],[22]	49,393,000,000	[21],[23]
Outstanding Loans and Leases (Textuals) [Abstract]
Loans Receivable, Gross, Commercial, Real Estate			79,000,000
Commercial Portfolio Segment [Member] | Finance Leases Financing Receivable [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	44,000,000		95,000,000
60 to 89 Days Past Due	41,000,000		23,000,000
90 Days or More Past Due	22,000,000		31,000,000
Total Past Due 30 Days or More	107,000,000		149,000,000
Total Current or Less Than 30 Days Past Due	21,243,000,000		21,793,000,000
Total Outstandings	21,350,000,000	[21]	21,942,000,000	[21]
Commercial Portfolio Segment [Member] | Small Business Commercial Receivable [Member]
Outstanding Loans and Leases
30 to 59 Days Past Due	129,000,000		195,000,000
60 to 89 Days Past Due	107,000,000		165,000,000
90 Days or More Past Due	291,000,000		438,000,000
Total Past Due 30 Days or More	527,000,000		798,000,000
Total Current or Less Than 30 Days Past Due	13,109,000,000		13,921,000,000
Total Outstandings	13,636,000,000		14,719,000,000
Commercial Portfolio Segment [Member] | Small Business Commercial Receivable [Member] | UNITED STATES
Outstanding Loans and Leases
Total Outstandings	13,636,000,000	[21]	14,719,000,000	[21]
Commercial Portfolio Segment [Member] | UNITED STATES
Outstanding Loans and Leases (Textuals) [Abstract]
Loans Receivable, Gross, Commercial, Real Estate	39,300,000,000		46,900,000,000
Commercial Portfolio Segment [Member] | Foreign [Member]
Outstanding Loans and Leases (Textuals) [Abstract]
Loans Receivable, Gross, Commercial, Real Estate	1,600,000,000		2,500,000,000
Residential Mortgage [Member]
Outstanding Loans and Leases
Purchased Credit - impaired	10,265,000,000	[3]	10,592,000,000	[3]
Residential Mortgage [Member] | Foreign [Member]
Outstanding Loans and Leases
Total Outstandings	86,000,000		90,000,000
Home Equity [Member]
Outstanding Loans and Leases
Purchased Credit - impaired	12,142,000,000	[3]	12,590,000,000	[3]
Financing Receivable Recorded Investment Class Of Financing Receivable Discontinued Real Estate [Member]
Outstanding Loans and Leases
Purchased Credit - impaired	10,241,000,000	[3]	11,652,000,000	[3]
Consumer Credit Card Financing Receivable [Member] | Foreign [Member] | Thirty To Eighty Nine Days Past Due Member
Outstanding Loans and Leases
Percentage of outstandings	2.00%		3.00%
Consumer Credit Card Financing Receivable [Member] | Foreign [Member] | 90 Days or More Past Due [Member]
Outstanding Loans and Leases
Percentage of outstandings	3.00%		2.00%
Consumer Credit Card Financing Receivable [Member] | Foreign [Member] | Total Current or Less Than 30 Days past Due [Member]
Outstanding Loans and Leases
Percentage of outstandings			95.00%
30-59 days Past Due [Member]
Outstanding Loans and Leases
Percentage of outstandings	1.00%	[2]	1.16%	[2]
Outstanding Loans and Leases (Textuals) [Abstract]
Loans And Leases Receivable Fully Insured Loans	3,800,000,000		2,400,000,000
Thirty To Eighty Nine Days Past Due Member
Outstanding Loans and Leases (Textuals) [Abstract]
Loans And Leases Receivable Nonperforming loans	737,000,000		818,000,000
Troubled Debt Restructurings Removed from Loan With Deteriorated Credit	118,000,000		156,000,000
60-89 days Past Due [Member]
Outstanding Loans and Leases
Percentage of outstandings	0.62%	[2]	0.72%	[2]
90 Days or More Past Due [Member]
Outstanding Loans and Leases
Percentage of outstandings	4.74%	[9]	4.95%	[9]
Outstanding Loans and Leases (Textuals) [Abstract]
Loans And Leases Receivable Fully Insured Loans	20,300,000,000		16,800,000,000
Troubled Debt Restructurings Removed from Loan With Deteriorated Credit	387,000,000		372,000,000
Total Past Due 30 Days or More[ Member]
Outstanding Loans and Leases
Percentage of outstandings	6.36%		6.83%
Total Current or Less Than 30 Days past Due [Member]
Outstanding Loans and Leases
Percentage of outstandings	88.94%	[10]	89.10%	[10]
Outstanding Loans and Leases (Textuals) [Abstract]
Loans And Leases Receivable Nonperforming loans	$ 1,700,000,000		$ 1,100,000,000
Purchased Credit-Impaired [Member]
Outstanding Loans and Leases
Percentage of outstandings	3.50%	[11]	3.72%	[11]
Loans Measured at Fair Value [Member]
Outstanding Loans and Leases
Percentage of outstandings	1.20%		0.35%

[1] Certain consumer loans are accounted for under the fair value option and include residential mortgage loans of $1.3 billion and discontinued real estate loans of $3.4 billion at September 30, 2011. Certain commercial loans are accounted for under the fair value option and include U.S. commercial loans of $1.9 billion, non-U.S. commercial loans of $4.5 billion and commercial real estate loans of $75 million at September 30, 2011. See Note 16 – Fair Value Measurements and Note 17 – Fair Value Option for additional information.

[2] Home loans includes $3.8 billion of fully-insured loans, $737 million of nonperforming loans and $118 million of TDRs that were removed from the Countrywide PCI loan portfolio prior to the adoption of accounting guidance on PCI loans effective January 1, 2010.

[3] Excludes $4.7 billion of loans accounted for under the fair value option.

[4] Excludes Countrywide PCI loans

[5] Total outstandings includes non-U.S. residential mortgages of $86 million at September 30, 2011.

[6] Total outstandings includes non-U.S. residential mortgages of $90 million at December 31, 2010.

[7] Total outstandings includes $10.3 billion of pay option loans and $1.2 billion of subprime loans at September 30, 2011. The Corporation no longer originates these products.

[8] Total outstandings includes $11.8 billion of pay option loans and $1.3 billion of subprime loans at December 31, 2010. The Corporation no longer originates these products.

[9] Home loans includes $20.3 billion of fully-insured loans and $387 million of TDRs that were removed from the Countrywide PCI loan portfolio prior to the adoption of accounting guidance on PCI loans effective January 1, 2010.

[10] Home loans includes $1.7 billion of nonperforming loans as all principal and interest are not current or the loans are TDRs that have not demonstrated sustained repayment performance.

[11] PCI loan amounts are shown gross of the valuation allowance

[12] Home loans includes $2.4 billion of fully-insured loans, $818 million of nonperforming loans and $156 million of TDRs that were removed from the Countrywide PCI loan portfolio prior to the adoption of accounting guidance on PCI loans effective January 1, 2010.

[13] Home loans includes $16.8 billion of fully-insured loans and $372 million of TDRs that were removed from the Countrywide PCI loan portfolio prior to the adoption of accounting guidance on PCI loans effective January 1, 2010.

[14] Home loans includes $1.1 billion of nonperforming loans as all principal and interest are not current or the loans are TDRs that have not demonstrated sustained repayment performance.

[15] PCI loan amounts are shown gross of the valuation allowance and exclude $1.6 billion of PCI home loans from the Merrill Lynch acquisition which are included in their appropriate aging categories.

[16] Total outstandings includes dealer financial services loans of $43.6 billion, consumer lending of $8.9 billion, U.S. securities-based lending margin loans of $22.3 billion, student loans of $6.1 billion, non-U.S. consumer loans of $7.8 billion and other consumer loans of $1.8 billion at September 30, 2011.

[17] Total outstandings includes dealer financial services loans of $43.3 billion, consumer lending of $12.4 billion, U.S. securities-based lending margin loans of $16.6 billion, student loans of $6.8 billion, non-U.S. consumer loans of $8.0 billion and other consumer loans of $3.2 billion at December 31, 2010.

[18] 96 percent of the other consumer portfolio was associated with portfolios from certain consumer finance businesses that the Corporation previously exited.

[19] Total outstandings includes consumer finance loans of $1.7 billion, other non-U.S. consumer loans of $992 million and consumer overdrafts of $94 million at September 30, 2011.

[20] Total outstandings includes consumer finance loans of $1.9 billion, other non-U.S. consumer loans of $803 million and consumer overdrafts of $88 million at December 31, 2010.

[21] Excludes $6.5 billion of loans accounted for under the fair value option.

[22] Total outstandings includes U.S. commercial real estate loans of $39.3 billion and non-U.S. commercial real estate loans of $1.6 billion at September 30, 2011.

[23] Total outstandings includes U.S. commercial real estate loans of $46.9 billion and non-U.S. commercial real estate loans of $2.5 billion at December 31, 2010.