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Loans - Credit Card Loans, Impaired (Details 11) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended 6 Months Ended 12 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Dec. 31, 2010
Jun. 30, 2011
Credit Card
Dec. 31, 2010
Credit Card
Jun. 30, 2011
Credit Card
Noncompliance With Modified Terms [Member]
Dec. 31, 2010
Credit Card
Noncompliance With Modified Terms [Member]
Jun. 30, 2011
Credit Card
Completion of Short Term Modification [Member]
Dec. 31, 2010
Credit Card
Completion of Short Term Modification [Member]
Jun. 30, 2011
Credit Card
Jun. 30, 2010
Credit Card
Jun. 30, 2011
Credit Card
Jun. 30, 2010
Credit Card
Dec. 31, 2010
Credit Card
Jun. 30, 2011
Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card
Jun. 30, 2010
Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card
Jun. 30, 2011
Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card
Jun. 30, 2010
Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card
Dec. 31, 2010
Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card
Jun. 30, 2011
Washington Mutual Credit Card Portfolio [Member]
Credit Card
Jun. 30, 2010
Washington Mutual Credit Card Portfolio [Member]
Credit Card
Jun. 30, 2011
Washington Mutual Credit Card Portfolio [Member]
Credit Card
Jun. 30, 2010
Washington Mutual Credit Card Portfolio [Member]
Credit Card
Dec. 31, 2010
Washington Mutual Credit Card Portfolio [Member]
Credit Card
Jun. 30, 2011
Consumer business banking [Member]
Dec. 31, 2010
Consumer business banking [Member]
Jun. 30, 2011
Other Consumer [Member]
Dec. 31, 2010
Other Consumer [Member]
Jun. 30, 2011
Consumer Loans Auto Financing Receivable [Member]
Dec. 31, 2010
Consumer Loans Auto Financing Receivable [Member]
Financing Receivable, Impaired [Line Items]                                                                
Default Rate for Modified Credit Card Loans, Estimated Weighted Average           37.40% 36.45%                                                  
Impaired Credit Card Loans                                                                
Credit card loans with modified payment terms                       $ 7,165   $ 7,165   $ 8,255 $ 5,820   $ 5,820   $ 6,685 $ 1,345   $ 1,345   $ 1,570 $ 429 $ 395 $ 517 $ 486 $ 88 $ 91
Modified credit card loans that have reverted to original payment terms               850 1,200 469 590 1,319   1,319   1,750 1,083   1,083   1,439 236   236   311            
Total impaired loans 7,011   7,011   5,344             8,484   8,484   10,005 6,903   6,903   8,124 1,581   1,581   1,881            
Allowance for loan losses related to impaired loans 820   820   811             3,451   3,451   4,069 2,765   2,765   3,175 686   686   894            
Average balance of impaired loans during the period:                                                                
Average impaired loans 6,717 4,316 6,266 3,966               8,864 10,987 9,177 10,935   7,205 8,965 7,456 8,938   1,659 2,022 1,721 1,997              
Interest income on impaired loans 76 49 143 98               121 152 251 302   94 121 195 240   27 31 56 62              
Loans and Leases Receivable, Impaired, Troubled Debt Restructuring, Nonaccrual of Interest                                                     $ 269 $ 268 $ 307 $ 307 $ 38 $ 39