| **Property, Plant and Equipment - Schedule of Property, Plant and Equipment by Component (Details) - USD ($) $ in Millions** | 12 Months Ended |          |         |
|------------------------------------------------------------------------------------------------------------------------------|-----------------|----------|---------|
||
| **Property, Plant and Equipment**                                                                                            |            |     |    |
| Subtotal                                                                                                                     | $ 10,838        | $ 14,071 |    |
| Less: Accumulated depreciation                                                                                               | 6,567           | 7,378    |    |
| Total property, plant and equipment                                                                                          | 4,271           | 6,693    | $ 9,063 |
| Land                                                                                                                         |            |     |    |
| **Property, Plant and Equipment**                                                                                            |            |     |    |
| Subtotal                                                                                                                     | 211             | 263      |    |
| Buildings and improvements                                                                                                   |            |     |    |
| **Property, Plant and Equipment**                                                                                            |            |     |    |
| Subtotal                                                                                                                     | 2,146           | 2,624    |    |
| Machinery, equipment and other                                                                                               |            |     |    |
| **Property, Plant and Equipment**                                                                                            |            |     |    |
| Subtotal                                                                                                                     | $ 8,481         | $ 11,184 |    |
| Minimum | Buildings and improvements                                                                                         |            |     |    |
| **Property, Plant and Equipment**                                                                                            |            |     |    |
| Useful Life                                                                                                                  | 5 years         |     |    |
| Minimum | Machinery, equipment and other                                                                                     |            |     |    |
| **Property, Plant and Equipment**                                                                                            |            |     |    |
| Useful Life                                                                                                                  | 1 year          |     |    |
| Maximum | Buildings and improvements                                                                                         |            |     |    |
| **Property, Plant and Equipment**                                                                                            |            |     |    |
| Useful Life                                                                                                                  | 30 years        |     |    |
| Maximum | Machinery, equipment and other                                                                                     |            |     |    |
| **Property, Plant and Equipment**                                                                                            |            |     |    |
| Useful Life                                                                                                                  | 20 years        |     |    |

| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682
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| X                                                                                                                                                                                                                                                                                                                                                                                                                          |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.
+ References
No definition available.
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| X                                                                                                                                                      |
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| X                                                                                                                               |
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| X                                                                                                                               |
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