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Property, Plant and Equipment - Property, Plant and Equipment (Detail) - USD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Property, Plant and Equipment [Line Items] |  |
Gross Cost | $ 19,374 | $ 17,008
Accumulated Depreciation | (16,280) | (14,721)
Net Cost | 3,094 | 2,287
Land [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Gross Cost | 81 | 73
Net Cost | 81 | 73
Buildings [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Gross Cost | 891 | 788
Accumulated Depreciation | (479) | (412)
Net Cost | 412 | 376
Facilities and Leasehold Improvements [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Gross Cost | 3,074 | 2,713
Accumulated Depreciation | (2,782) | (2,474)
Net Cost | 292 | 239
Machinery and Equipment [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Gross Cost | 14,529 | 12,808
Accumulated Depreciation | (12,569) | (11,415)
Net Cost | 1,960 | 1,393
Computer and R&D Equipment [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Gross Cost | 397 | 362
Accumulated Depreciation | (351) | (324)
Net Cost | 46 | 38
Other Tangible Assets [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Gross Cost | 118 | 105
Accumulated Depreciation | (99) | (96)
Net Cost | 19 | 9
Construction in Progress [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Gross Cost | 284 | 159
Net Cost | $ 284 | $ 159

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- Definition Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services. + 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 (c) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.14) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- 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=d3e2868-110229 Reference 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 + Details
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