| **Restructuring And Other Charges (Narrative) (Details) (USD $)In Millions, unless otherwise specified** |        |        |        | 20 Months Ended | 32 Months Ended   | 20 Months Ended |        |        | 20 Months Ended |        |        | 32 Months Ended | 30 Months Ended | 39 Months Ended   | 30 Months Ended |        | 39 Months Ended | 30 Months Ended | 39 Months Ended | 30 Months Ended | 39 Months Ended | 3 Months Ended | 30 Months Ended | 33 Months Ended |                   |        |        |
|----------------------------------------------------------------------------------------------------------|--------|--------|--------|-----------------|-------------------|-----------------|--------|--------|-----------------|--------|--------|-----------------|-----------------|-------------------|-----------------|--------|-----------------|-----------------|-----------------|-----------------|-----------------|----------------|-----------------|-----------------|-------------------|--------|--------|
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| **Restructuring And Other Charges**                                                                      |   |   |   |            |              |            |   |   |            |   |   |            |            |              |            |   |            |            |            |            |            |           |            |            |              |   |   |   |   |
| Restructuring incurred charges                                                                           |   |   |   | $ 23            |              | $ 10            |   |   | $ 9             | $ 4    |   |            |            |              | $ 171           |   |            | $ 12            |            | $ 128           |            | $ 31           |            |            |              |   |   |   |   |
| Restructuring charges                                                                                    |   |   |   |            |              |            |   |   |            |   |   |            | 2               |              |            |   |            |            | 12              |            | 166             |           | 1               | 7               |              |   |   |   |   |
| Restructuring and related activities expected completion date                                            |   |   |   |            | Aug. 31,				 2016 |            |   |   |            |   |   |            |            | Jun. 30,				 2016 |            |   |            |            |            |            |            |           |            |            | Sep. 30,				 2016 |   |   |   |   |
| Restructuring reserve and accrual                                                                        | 56     | 62     | 78     |            |              | 0               | 0      | 0      |            | 1      | 2      | 0               |            |              |            |   | 53              |            |            |            |            |           |            |            |              | 1      | 1      | 2 | 3 |
| Expected restructuring charges, Minimum                                                                  |   |   |   |            |              |            |   |   |            |   |   |            |            |              |            | 175    |            |            |            |            |            |           |            |            |              |   |   |   |   |
| Expected restructuring charges, Maximum                                                                  |   |   |   |            |              |            |   |   |            |   |   |            |            |              |            | $ 180  |            |            |            |            |            |           |            |            |              |   |   |   |   |

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| - Definition
Date the exit and disposal activities were completed or are expected to be completed, in CCYY-MM-DD format.
+ References
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| - Definition
Amount of costs incurred to date for the specified type of restructuring cost.
+ References
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| - Definition
Amount expected to be recognized in earnings for the specified restructuring cost.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.
+ References
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