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Acquisitions, Dispositions, Goodwill and Other Intangible Assets (Amortization Expense) (Details) (USD $)
In Millions, unless otherwise specified |
Sep. 30, 2014
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|---|---|
| Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] | |
| Amortization Expense, Remaining 2014 | $ 162 |
| Amortization Expense, 2015 | 669 |
| Amortization Expense, 2016 | 677 |
| Amortization Expense, 2017 | 751 |
| Amortization Expense, 2018 | 819 |
| Amortization Expense, 2019 | $ 810 |