Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments - Other Off-Balance Sheet Arrangements (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other off-balance sheet arrangements - supplemental information [Abstract]
Other expense	$ 11,146,000,000us-gaap_OtherNoninterestExpense	$ 20,398,000,000us-gaap_OtherNoninterestExpense	$ 14,989,000,000us-gaap_OtherNoninterestExpense
Valuation Allowances and Reserves, Balance	275,000,000	681,000,000	2,811,000,000	3,557,000,000
Chase Paymentech Solutions
Other off-balance sheet arrangements - supplemental information [Abstract]
Other expense	10,000,000	14,000,000	16,000,000
Aggregate volume processed by electronic payment services business	847,900,000,000	750,100,000,000	655,200,000,000
Valuation Allowances and Reserves, Balance	4,000,000	5,000,000
Cash collateral held	$ 174,000,000	$ 208,000,000

Aggregate volume processed by electronic payment services business.

No definition available.

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- Definition

Carrying amount as of the balance sheet date of cash collateral held.

+ References

No definition available.

+ Details

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- Details

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- Definition

Other noninterest expenses that are not separately presented in any other noninterest expense category.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-04.14)

-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

+ Details

Name:	us-gaap_OtherNoninterestExpense
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 09

-Article 12

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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