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Goodwill and Other Intangible Assets - Identifiable Intangible Assets (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
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|---|---|
| Schedule of Finite and Indefinite Lived Intangible Assets [Line Items] | |
| Gross Carrying Amount | $ 36,839 |
| Finite-Lived Intangible Assets, Accumulated Amortization | 5,244 |
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INTANGIBLE ASSETS WITH DETERMINABLE LIVES
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| Schedule of Finite and Indefinite Lived Intangible Assets [Line Items] | |
| Gross Carrying Amount | 9,853 |
| Finite-Lived Intangible Assets, Accumulated Amortization | 5,244 |
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INTANGIBLE ASSETS WITH INDEFINITE LIVES
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| Schedule of Finite and Indefinite Lived Intangible Assets [Line Items] | |
| Gross Carrying Amount | 26,986 |
| Finite-Lived Intangible Assets, Accumulated Amortization | $ 0 |