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Borrowings and Deposits Long-term Borrowings (Details) (USD $)
In Millions, unless otherwise specified |
Mar. 31, 2013
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Dec. 31, 2012
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| Debt Instrument [Line Items] | ||
| Long-term Debt | $ 90,106 | $ 92,249 |
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Put Option [Member]
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| Debt Instrument [Line Items] | ||
| Long-term Debt | 9,800 | |
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Structured Notes With Performance Requirements [Member]
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| Debt Instrument [Line Items] | ||
| Long-term Debt | $ 7,500 |
| X | ||||||||||
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- Details
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- Definition
Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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