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Restructuring and Other Charges - Schedule of Restructuring and Other Charges by Reportable Segments, Pretax (Detail) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and other charges | $ 73 | $ 16
Operating Segments [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and other charges | 66 | 10
Corporate [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and other charges | 7 | 6
Engineered Products and Solutions [Member] | Operating Segments [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and other charges | 6 | 8
Global Rolled Products [Member] | Operating Segments [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and other charges | 57 | $ 2
Transportation and Construction Solutions [Member] | Operating Segments [Member] |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and other charges | $ 3 |

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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
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- 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. + Details
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