| **Special Charges (Summary Of Activity Related To Special Charge Restructuring Accrual) (Details) (2012 Business Realignment Restructuring Plan [Member], USD $)In Millions, unless otherwise specified** | 3 Months Ended | 12 Months Ended |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------|-----------------|
||
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Balance at beginning                                                                                                                                                                                      | $ 68           | $ 87            | $ 66 |   |
| Special charges, fixed asset impairment charges                                                                                                                                                           | 14             |            |   |   |
| Special charges                                                                                                                                                                                           | 60             | 34              | 220 | 185 |
| Non-cash charges used                                                                                                                                                                                     | (21)           | (2)             | (47) |   |
| Cash payments                                                                                                                                                                                             | (26)           | (51)            | (152) |   |
| Balance at ending                                                                                                                                                                                         | 81             | 68              | 87 | 66 |
| Employee Termination Costs [Member]                                                                                                                                                                       |           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Balance at beginning                                                                                                                                                                                      | 44             | 54              | 58 |   |
| Non-cash charges used                                                                                                                                                                                     | 0              | 0               | 0 |   |
| Cash payments                                                                                                                                                                                             | (14)           | (22)            | (79) |   |
| Balance at ending                                                                                                                                                                                         | 60             | 44              | 54 |   |
| Inventory Charges [Member]                                                                                                                                                                                |           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Balance at beginning                                                                                                                                                                                      | 0              | 0               | 0 |   |
| Non-cash charges used                                                                                                                                                                                     | (7)            | (1)             | (30) |   |
| Cash payments                                                                                                                                                                                             | 0              | 0               | 0 |   |
| Balance at ending                                                                                                                                                                                         | 0              | 0               | 0 |   |
| Fixed Asset Charges [Member]                                                                                                                                                                              |           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Balance at beginning                                                                                                                                                                                      | 0              | 0               | 0 |   |
| Non-cash charges used                                                                                                                                                                                     | (14)           | (1)             | (13) |   |
| Cash payments                                                                                                                                                                                             | 0              | 0               | 0 |   |
| Balance at ending                                                                                                                                                                                         | 0              | 0               | 0 |   |
| Other Restructuring [Member]                                                                                                                                                                              |           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Balance at beginning                                                                                                                                                                                      | 24             | 33              | 8 |   |
| Non-cash charges used                                                                                                                                                                                     | 0              | 0               | (4) |   |
| Cash payments                                                                                                                                                                                             | (12)           | (29)            | (73) |   |
| Balance at ending                                                                                                                                                                                         | 21             | 24              | 33 |   |
| Cost of Sales [Member]                                                                                                                                                                                    |           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Special charges                                                                                                                                                                                           | 26             | 1               | 35 |   |
| Cost of Sales [Member] | Employee Termination Costs [Member]                                                                                                                                              |           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Special charges, severance and benefit costs                                                                                                                                                              | 7              | 0               | 0 |   |
| Cost of Sales [Member] | Inventory Charges [Member]                                                                                                                                                       |           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Special charges, inventory obsolescence charges                                                                                                                                                           | 7              | 1               | 30 |   |
| Cost of Sales [Member] | Fixed Asset Charges [Member]                                                                                                                                                     |           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Special charges, fixed asset impairment charges                                                                                                                                                           | 12             | 0               | 0 |   |
| Cost of Sales [Member] | Other Restructuring [Member]                                                                                                                                                     |           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Restructuring reserve period expense                                                                                                                                                                      | 0              | 0               | 5 |   |
| Operating Expense [Member]                                                                                                                                                                                |           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Special charges                                                                                                                                                                                           | 34             | 33              | 185 |   |
| Operating Expense [Member] | Employee Termination Costs [Member]                                                                                                                                          |           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Special charges, severance and benefit costs                                                                                                                                                              | 23             | 12              | 75 |   |
| Operating Expense [Member] | Inventory Charges [Member]                                                                                                                                                   |           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Special charges, inventory obsolescence charges                                                                                                                                                           | 0              | 0               | 0 |   |
| Operating Expense [Member] | Fixed Asset Charges [Member]                                                                                                                                                 |           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Special charges, fixed asset impairment charges                                                                                                                                                           | 2              | 1               | 13 |   |
| Operating Expense [Member] | Other Restructuring [Member]                                                                                                                                                 |           |            |   |   |
| **Restructuring Cost and Reserve [Line Items]**                                                                                                                                                           |           |            |   |   |
| Restructuring reserve period expense                                                                                                                                                                      | $ 9            | $ 20            | $ 97 |   |

| X                                                                                                                                                                                                                                                                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Includes costs associated with cost of sales expenses and operating expenses that are unusual or infrequent in occurrence (such as restructuring, remediation, impairment charges and certain litigation charges).
+ References
No definition available.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Charge to cost of goods sold that represents the reduction of the carrying amount of inventory, generally attributable to obsolescence or market conditions.
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.
+ References
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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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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of consideration other than cash used to fully or partially settle an accrued restructuring cost.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.
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