Commitments and Contingencies (Details) (USD $)
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12 Months Ended | 3 Months Ended | 4 Months Ended | 4 Months Ended | 36 Months Ended | 4 Months Ended | 4 Months Ended | 36 Months Ended | 1 Months Ended | 0 Months Ended | 0 Months Ended | 0 Months Ended | 1 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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Dec. 31, 2011
External Credit Rating, Investment Grade [Member]
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Dec. 31, 2010
External Credit Rating, Investment Grade [Member]
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Dec. 31, 2011
External Credit Rating, Non Investment Grade [Member]
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Dec. 31, 2010
External Credit Rating, Non Investment Grade [Member]
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Dec. 31, 2011
522110 Commercial Banking [Member]
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Dec. 31, 2010
522110 Commercial Banking [Member]
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Dec. 31, 2011
S P Es [Member]
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Dec. 31, 2010
S P Es [Member]
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Dec. 31, 2008
Merrill Lynch Acquisition Related Matters [Member]
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Jan. 21, 2009
Securities Actions [Member]
Contract
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Sep. 12, 2008
Securities Actions [Member]
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May 20, 2008
Montgomery [Member]
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Dec. 31, 2007
AIG Litigation [Member]
Offering
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Dec. 31, 2007
Luther Litigation [Member]
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Dec. 31, 2011
Mortgage Servicing Investigations [Member]
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Apr. 30, 2011
Mortgage Servicing Investigations [Member]
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Dec. 31, 2011
Loan Commitments [Member]
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Dec. 31, 2010
Loan Commitments [Member]
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Dec. 31, 2011
Home Equity [Member]
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Dec. 31, 2010
Home Equity [Member]
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Dec. 31, 2011
Financial Standby Letter Of Credit And Financial Guarantee [Member]
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Dec. 31, 2010
Financial Standby Letter Of Credit And Financial Guarantee [Member]
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Dec. 31, 2011
Letter of Credit [Member]
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Dec. 31, 2010
Letter of Credit [Member]
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Dec. 31, 2011
Legally Binding Commitments [Member]
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Dec. 31, 2010
Legally Binding Commitments [Member]
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Dec. 31, 2011
Credit Card Lines [Member]
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Dec. 31, 2010
Credit Card Lines [Member]
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Dec. 31, 2011
Guarantee Type, Other [Member]
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Dec. 31, 2010
Guarantee Type, Other [Member]
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Dec. 31, 2011
Payment Guarantee [Member]
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Dec. 31, 2010
Payment Guarantee [Member]
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Dec. 31, 2011
Consumer Letter of Credit [Member]
Financial Standby Letter Of Credit And Financial Guarantee [Member]
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Dec. 31, 2010
Consumer Letter of Credit [Member]
Letter of Credit [Member]
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Dec. 31, 2010
Commercial Letter of Credit [Member]
Letter of Credit [Member]
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Dec. 31, 2011
Guarantee Life Insurance Book Value Protection Derivative [Member]
Financial Guarantee [Member]
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Dec. 31, 2011
Guarantee Employee Retirement Protection Derivative [Member]
Financial Guarantee [Member]
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Dec. 31, 2010
Guarantee Employee Retirement Protection Derivative [Member]
Financial Guarantee [Member]
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Jan. 21, 2009
Maximum [Member]
Securities Actions [Member]
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Dec. 31, 2011
Maximum [Member]
Guarantee Life Insurance Book Value Protection Derivative [Member]
Financial Guarantee [Member]
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Dec. 31, 2010
Maximum [Member]
Guarantee Life Insurance Book Value Protection Derivative [Member]
Financial Guarantee [Member]
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Jan. 21, 2009
Minimum [Member]
Securities Actions [Member]
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Dec. 31, 2007
Minimum [Member]
AIG Litigation [Member]
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Apr. 30, 2009
Minimum [Member]
Ocala [Member]
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Aug. 06, 2011
Bank of America, N.A. [Member]
Ocala [Member]
Loan
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Dec. 31, 2011
Pending or Threatened Litigation [Member]
Checking Account Overdraft Litigation [Member]
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Dec. 31, 2011
Pending or Threatened Litigation [Member]
Fair Lending Investigation [Member]
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Mar. 24, 2010
Pending or Threatened Litigation [Member]
Fontainebleau Las Vegas Litigation [Member]
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Jun. 09, 2009
Pending or Threatened Litigation [Member]
Fontainebleau Las Vegas Litigation [Member]
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Dec. 31, 2011
Pending or Threatened Litigation [Member]
Interchange and Related Litigation [Member]
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Dec. 31, 2011
Pending or Threatened Litigation [Member]
Interchange and Related Litigation - Visa Related Claims [Member]
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Dec. 31, 2011
Pending or Threatened Litigation [Member]
Interchange and Related Litigation - Mastercard Related Claims [Member]
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Dec. 31, 2011
Pending or Threatened Litigation [Member]
Interchange and Related Litigation - Internetwork Related Claims [Member]
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Dec. 31, 2011
Pending or Threatened Litigation [Member]
Minimum [Member]
Auction Rate Securities Litigation [Member]
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Mar. 24, 2010
Pending or Threatened Litigation [Member]
Minimum [Member]
Financial Guaranty Insurance Company [Member]
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Jun. 09, 2009
Pending or Threatened Litigation [Member]
Bank of America, N.A. [Member]
Fontainebleau Las Vegas Litigation [Member]
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Apr. 30, 2011
State and Federal Governments and Borrower Restitution [Member]
Mortgage Servicing Investigations [Member]
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Apr. 30, 2011
Borrower Assistance [Member]
Mortgage Servicing Investigations [Member]
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Apr. 30, 2011
Refinancing Assistance [Member]
Mortgage Servicing Investigations [Member]
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Dec. 31, 2011
Unfunded loan commitments [Member]
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Dec. 31, 2010
Unfunded loan commitments [Member]
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Guarantor Obligations [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Expire in One Year or Less | $ 576,860,000,000 | $ 690,689,000,000 | $ 96,291,000,000 | $ 152,926,000,000 | $ 1,679,000,000 | $ 1,722,000,000 | $ 26,965,000,000 | [1] | $ 35,275,000,000 | [1] | $ 2,828,000,000 | $ 3,698,000,000 | [2] | $ 127,763,000,000 | $ 193,621,000,000 | $ 449,097,000,000 | [3] | $ 497,068,000,000 | [3] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Expire After One Year Through Three Years | 112,137,000,000 | 167,801,000,000 | 85,413,000,000 | 144,461,000,000 | 7,765,000,000 | 4,290,000,000 | 18,932,000,000 | [1] | 18,940,000,000 | [1] | 27,000,000 | 110,000,000 | [2] | 112,137,000,000 | 167,801,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Expire After Three Years Through Five Years | 148,171,000,000 | 65,816,000,000 | 120,770,000,000 | 43,465,000,000 | 20,963,000,000 | 18,207,000,000 | 6,433,000,000 | [1] | 4,144,000,000 | [1] | 5,000,000 | 148,171,000,000 | 65,816,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Expire After Five Years | 57,963,000,000 | 78,829,000,000 | 15,009,000,000 | 16,172,000,000 | 37,066,000,000 | 55,886,000,000 | 5,505,000,000 | [1] | 5,897,000,000 | [1] | 383,000,000 | 874,000,000 | [2] | 57,963,000,000 | 78,829,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Notional Amount Of Credit Extension Commitments | 895,131,000,000 | 1,003,135,000,000 | 317,483,000,000 | 357,024,000,000 | 67,473,000,000 | 80,105,000,000 | 57,835,000,000 | [1] | 64,256,000,000 | [1] | 3,243,000,000 | 4,682,000,000 | [2] | 446,034,000,000 | 506,067,000,000 | 449,097,000,000 | [3] | 497,068,000,000 | [3] | 859,000,000 | 849,000,000 | 3,800,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
Notional amount of Sblcs and financial guarantees | 39,200,000,000 | 41,100,000,000 | 17,800,000,000 | 22,400,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Credit Extension Commitments [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Legally Binding Unfunded Commitments Syndicated | 27,100,000,000 | 23,300,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Carrying Amount Credit Extension Commitments Syndicated | 741,000,000 | 1,200,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Deferred revenue related to binding unfunded lending commitments | 27,000,000 | 29,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Reserve For Credit Extension Commitments Syndicated | 714,000,000 | 1,200,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Notional Amount Of Credit Extension Commitments Under Fair Value Option | 25,700,000,000 | 27,300,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Fair Value Carrying Amount Liabilities | 1,249,000,000 | 866,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Unfunded equity investment commitments | 772,000,000 | 1,500,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Commitment to purchase residential mortgage and commercial real estate loans | 2,500,000,000 | 2,600,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Forward Dated Resale and Securities Borrowing Agreements Commitment | 67,000,000,000 | 39,400,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Forward Dated Repurchase And Securities Lending Agreements Commitment | 42,000,000,000 | 33,500,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
2012 | 3,000,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
2013 | 2,600,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
2014 | 2,000,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
2015 | 1,600,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
2016 | 1,300,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Thereafter | 6,100,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Committed Minimum Fees On Market Data Communications Systems Consulting And Other Office Related Services | 1,900,000,000 | 2,100,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Notional Amount of Derivatives | 1,903,782,000,000 | 2,155,962,000,000 | 3,200,000,000 | 4,300,000,000 | 1,800,000,000 | 1,700,000,000 | 300,000,000 | 666,000,000 | 15,800,000,000 | 28,800,000,000 | 33,800,000,000 | 5,100,000,000 | 5,000,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Life Insurance Book Value Protection, Fair Value Liability | 48,000,000 | 78,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Equity Method Investment, Ownership Percentage | 49.00% | 46.50% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Merchant Services Transactions Processed And Settled By Sponsored Entitites | 460,400,000,000 | 339,400,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Losses As Result Of Cardholder Disputed Transactions | 11,000,000 | 17,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Merchant escrow deposits held as collateral | 238,000,000 | 25,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Guarantor Obligations, Maximum Exposure, Undiscounted | 236,000,000,000 | 139,500,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Registration Payment Arrangement, Maximum Potential Consideration | 3,700,000,000 | 3,400,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loss Contingency Accrual, at Carrying Value | 476,000,000 | 700,000,000 | 410,000,000 | 335,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Litigation Settlement, Expense | 5,600,000,000 | 2,600,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loss Contingency, Range of Possible Loss, Minimum | 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loss Contingency, Range of Possible Loss, Maximum | 3,600,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loss Contingency, Estimate of Possible Loss | 1,200,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loss Contingency, Damages Sought, Value | 10,000,000,000 | 1,600,000,000 | 900,000,000 | 3,000,000,000 | 100,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Breach of Contract Dispute, Amount Claimed Under Commitment To Lend | 800,000,000 | 100,000,000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loss Contingency, Damages Sought, Percent of Monetary Portion of Comprehensive Settlement, Loss Sharing Agreement | 11.60% | 12.80% | 9.10% | 11.60% | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loss Contingency, Escrow Cap Percent | 12.81% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Percent of Entity Loss Contingency, Monetary Damages, Covered by Escrow Funds | 73.90% | 100.00% | 73.90% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Bonus Payments Made To Employees | 5,800,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Number of Company Shares Held in Benefit Plan | 5,017,579,321 | 4,560,112,687 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Common Stock, Market Price | $ 6.68 | $ 33.74 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Total Number Of Call Option Contracts | 9,500,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Total Number of Put Options | 8,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Proceeds Received From Plaintiff Claims | 15,800,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loss Contingency, Number of Offerings Sought to Rescind | 347 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Amount Spend For Securities Purchased | 216,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loss Contingency, Loss in Period | 1,900,000,000 | 7,600,000,000 | 1,000,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loss Contingency, Additional Possible Payment | 350,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loss Contingency, Upfront Cash Payment Requirement | 500,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loss Contingency Additional Payment if Triggered | 500,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Amount for Imposition of Civil Monetary Penalty Held in Abeyance | 164,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Civil Monetary Penalty To Be Paid if Required Payments Are Not Made in Prescribed Time | $ 176,000,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Loss Contingency Claim, Number of Loans Converted, Breach of Contract | 4,808 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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