Outstanding Loans and Leases (Details 9) (USD $) |
9 Months Ended | 3 Months Ended | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 30, 2011 |
Sep. 30, 2010 |
Dec. 31, 2010 |
Sep. 30, 2011
Consumer Portfolio Segment [Member]
CANADA
Consumer Credit Card Financing Receivable [Member]
|
Sep. 30, 2011
Consumer Portfolio Segment [Member]
Consumer Other Financing Receivable [Member]
|
Dec. 31, 2010
Consumer Portfolio Segment [Member]
Consumer Other Financing Receivable [Member]
|
Sep. 30, 2011
Consumer Portfolio Segment [Member]
Consumer Other Financing Receivable [Member]
Foreign [Member]
|
Dec. 31, 2010
Consumer Portfolio Segment [Member]
Consumer Other Financing Receivable [Member]
Foreign [Member]
|
Sep. 30, 2011
Commercial Portfolio Segment [Member]
|
Dec. 31, 2010
Commercial Portfolio Segment [Member]
|
Sep. 30, 2011
Commercial Portfolio Segment [Member]
Commercial Financing Receivable Member
UNITED STATES
|
Dec. 31, 2010
Commercial Portfolio Segment [Member]
Commercial Financing Receivable Member
UNITED STATES
|
Sep. 30, 2011
Commercial Portfolio Segment [Member]
Commercial Financing Receivable Member
Foreign [Member]
|
Dec. 31, 2010
Commercial Portfolio Segment [Member]
Commercial Financing Receivable Member
Foreign [Member]
|
Sep. 30, 2011
Commercial Portfolio Segment [Member]
Commercial Real Estate Receivable [Member]
|
Dec. 31, 2010
Commercial Portfolio Segment [Member]
Commercial Real Estate Receivable [Member]
|
Sep. 30, 2011
Commercial Portfolio Segment [Member]
UNITED STATES
|
Dec. 31, 2010
Commercial Portfolio Segment [Member]
UNITED STATES
|
Sep. 30, 2011
Commercial Portfolio Segment [Member]
Foreign [Member]
|
Dec. 31, 2010
Commercial Portfolio Segment [Member]
Foreign [Member]
|
|
| Loans Held for Sale [Line Items] | ||||||||||||||||||||
| Loans Receivable, Gross, Commercial, Real Estate | $ 79,000,000 | $ 39,300,000,000 | $ 46,900,000,000 | $ 1,600,000,000 | $ 2,500,000,000 | |||||||||||||||
| Consumer Finance | 1,700,000,000 | 1,900,000,000 | 992,000,000 | 803,000,000 | ||||||||||||||||
| Loans Receivable, Fair Value Disclosure | 11,224,000,000 | 3,321,000,000 | 6,483,000,000 | 3,321,000,000 | 1,900,000,000 | 1,600,000,000 | 4,500,000,000 | 1,700,000,000 | 75,000,000 | |||||||||||
| Loans Receivable Held-for-sale, Amount | 23,100,000,000 | 35,100,000,000 | ||||||||||||||||||
| Proceeds from sales securitizations and paydowns of loans held for sale | 127,600,000,000 | 221,400,000,000 | ||||||||||||||||||
| Proceeds used for originations and purchase of loan held for sale | 103,600,000,000 | 200,400,000,000 | ||||||||||||||||||
| Transfer of Portfolio Loans and Leases to Held-for-sale | $ 8,100,000,000 | |||||||||||||||||||