Loans - Credit Card Loans, by Portfolio, by Geographic Region (Details 10b) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2010
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	$ 692,944	$ 685,498	$ 687,049
Credit Card
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	127,041	135,524
Credit Card | California [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	16,876	18,104
Credit Card | California [Member] | Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	14,695	15,454
Credit Card | California [Member] | Washington Mutual Credit Card Portfolio [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	2,181	2,650
Credit Card | New York [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	10,161	10,572
Credit Card | New York [Member] | Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	9,300	9,540
Credit Card | New York [Member] | Washington Mutual Credit Card Portfolio [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	861	1,032
Credit Card | Florida [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	7,261	7,889
Credit Card | Florida [Member] | Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	6,310	6,724
Credit Card | Florida [Member] | Washington Mutual Credit Card Portfolio [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	951	1,165
Credit Card | Illinois [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	7,255	7,619
Credit Card | Illinois [Member] | Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	6,802	7,077
Credit Card | Illinois [Member] | Washington Mutual Credit Card Portfolio [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	453	542
Credit Card | Texas [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	9,826	10,223
Credit Card | Texas [Member] | Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	8,985	9,217
Credit Card | Texas [Member] | Washington Mutual Credit Card Portfolio [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	841	1,006
Credit Card | New Jersey [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	5,322	5,564
Credit Card | New Jersey [Member] | Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	4,913	5,070
Credit Card | New Jersey [Member] | Washington Mutual Credit Card Portfolio [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	409	494
Credit Card | Pennsylvania [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	4,548	4,945
Credit Card | Washington [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	2,375	2,491
Credit Card | Washington [Member] | Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	2,006	2,053
Credit Card | Washington [Member] | Washington Mutual Credit Card Portfolio [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	369	438
Credit Card | Ohio [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	5,014	5,436
Credit Card | Ohio [Member] | Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	4,684	5,035
Credit Card | Ohio [Member] | Washington Mutual Credit Card Portfolio [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	330	401
Credit Card | Michigan [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	3,895	4,229
Credit Card | Michigan [Member] | Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	3,669	3,956
Credit Card | Michigan [Member] | Washington Mutual Credit Card Portfolio [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	226	273
Credit Card | All Other States [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	48,431	51,905
Credit Card | All Other States [Member] | Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	44,607	47,290
Credit Card | All Other States [Member] | Washington Mutual Credit Card Portfolio [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	3,824	4,615
Credit Card | Chase Credit Card Portfolio Excluding Washington Mutual [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	115,672	121,791
Credit Card | Chase Credit Card Portfolio Excluding Washington Mutual [Member] | Pennsylvania [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	4,194	4,521
Credit Card | Chase Credit Card Portfolio Excluding Washington Mutual [Member] | Virginia [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	2,882	3,020
Credit Card | Chase Credit Card Portfolio Excluding Washington Mutual [Member] | Georgia [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	2,625	2,834
Credit Card | Washington Mutual Credit Card Portfolio [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	11,369	13,733
Credit Card | Washington Mutual Credit Card Portfolio [Member] | Pennsylvania [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	354	424
Credit Card | Washington Mutual Credit Card Portfolio [Member] | Virginia [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	245	295
Credit Card | Washington Mutual Credit Card Portfolio [Member] | Georgia [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	325	398
Credit Card | Virginia [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	3,127	3,315
Credit Card | Georgia [Member]
Credit Card Loans, by Geographic Region [Line Items]
Retained loans	$ 2,950	$ 3,232