Loans - Credit Card Loans, Impaired (Details 11) (Credit Card, USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Financing Receivable, Impaired [Line Items]
Default Rate for Modified Credit Card Loans, Estimated Weighted Average			36.22%		36.45%
Impaired Credit Card Loans
Credit card loans with modified payment terms	$ 6,598		$ 6,598		$ 8,255
Modified credit card loans that have reverted to original payment terms	1,222		1,222		1,750
Total impaired loans	7,820		7,820		10,005
Allowance for loan losses related to impaired loans	3,052		3,052		4,069
Average balance of impaired loans during the period:
Average impaired loans	8,142	10,745	8,829	10,870
Interest income on impaired loans	111	155	362	457
Noncompliance With Modified Terms [Member]
Impaired Credit Card Loans
Modified credit card loans that have reverted to original payment terms	804		804		1,200
Completion of Short Term Modification [Member]
Impaired Credit Card Loans
Modified credit card loans that have reverted to original payment terms	418		418		590
Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Impaired Credit Card Loans
Credit card loans with modified payment terms	5,373		5,373		6,685
Modified credit card loans that have reverted to original payment terms	998		998		1,439
Total impaired loans	6,371		6,371		8,124
Allowance for loan losses related to impaired loans	2,447		2,447		3,175
Average balance of impaired loans during the period:
Average impaired loans	6,629	8,743	7,178	8,872
Interest income on impaired loans	87	123	282	363
Washington Mutual Credit Card Portfolio [Member]
Impaired Credit Card Loans
Credit card loans with modified payment terms	1,225		1,225		1,570
Modified credit card loans that have reverted to original payment terms	224		224		311
Total impaired loans	1,449		1,449		1,881
Allowance for loan losses related to impaired loans	605		605		894
Average balance of impaired loans during the period:
Average impaired loans	1,513	2,002	1,651	1,998
Interest income on impaired loans	$ 24	$ 32	$ 80	$ 94