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Goodwill and Other Intangible Assets - Other Intangible Assets (Detail) - USD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
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Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | $ 1,852 | $ 1,762
Accumulated amortization | (897) | (806)
Indefinite-lived trade names and trademarks | 32 | 32
Total other intangible assets | 1,884 | 1,794
Computer software |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | 789 | 755
Accumulated amortization | (674) | (623)
Patents and licenses |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | 110 | 110
Accumulated amortization | (107) | (102)
Other intangible assets |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross carrying amount | 953 | 897
Accumulated amortization | $ (116) | $ (81)

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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