Annual report pursuant to Section 13 and 15(d)

Goodwill Balances by Business Segment (Details)

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Goodwill Balances by Business Segment (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended 12 Months Ended 1 Months Ended 3 Months Ended 12 Months Ended 12 Months Ended 3 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Dec. 31, 2011
Deposits [Member]
Dec. 31, 2010
Deposits [Member]
Dec. 31, 2010
Card Services [Member]
Dec. 31, 2011
Card Services [Member]
Jun. 30, 2011
Consumer Real Estate Services [Member]
Dec. 31, 2010
Consumer Real Estate Services [Member]
Dec. 31, 2011
Consumer Real Estate Services [Member]
Dec. 31, 2010
Consumer Real Estate Services [Member]
Dec. 31, 2011
Global Commercial Banking [Member]
Dec. 31, 2010
Global Commercial Banking [Member]
Dec. 31, 2011
Global Banking & Markets [Member]
Dec. 31, 2010
Global Banking & Markets [Member]
Dec. 31, 2011
Global Wealth & Investment Management [Member]
Dec. 31, 2010
Global Wealth & Investment Management [Member]
Dec. 31, 2011
All Other [Member]
Dec. 31, 2010
All Other [Member]
Dec. 31, 2011
International Consumer Card [Member]
Sep. 30, 2011
International Consumer Card [Member]
Sep. 30, 2011
CANADA
International Consumer Card [Member]
Goodwill [Abstract]                                            
Total Goodwill $ 69,967 $ 73,861   $ 17,875 $ 17,875 $ 10,014 $ 10,014   $ 2,796   $ 2,796 $ 20,668 $ 20,668 $ 10,672 $ 10,672 $ 9,928 $ 9,928 $ 810 $ 1,908      
In Text Details [Abstract]                                            
Goodwill Allocated Due To Sale of Business               193                         1,900 526
Goodwill impairment $ 3,184 [1] $ 12,400 [1] $ 0 [1]     $ 10,400 [2]   $ 2,600 $ 2,000 $ 2,603 $ 2,000             $ 581   $ 581    
[1] There were no material intersegment revenues.
[2] 2011 and 2010 are presented in accordance with new consolidation guidance. 2009 Card Services results are presented on a managed basis with a corresponding offset recorded in All Other.