Off-Balance Sheet - Other Off-Balance Sheet Arrangements (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Other off-balance sheet arrangements - supplemental information [Abstract]
Other Noninterest Expense	$ 14,032,000,000	$ 13,559,000,000	$ 14,558,000,000
Chase PayMentech Solutions [Member]
Other off-balance sheet arrangements - supplemental information [Abstract]
Other Noninterest Expense	16,000,000	13,000,000	12,000,000
AggregateVolumeProcessedByElectronicPaymentServicesBusiness	655,200,000,000	553,700,000,000	469,300,000,000
CashCollateralHeld	$ 203,000,000	$ 204,000,000	$ 189,000,000