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Income Taxes - Additional Information (Detail) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Income Tax [Line Items] |  |  |  |
Effective income tax rate | 31.30% | 37.60% | 29.40% | 29.40%
Tax benefits related to Venezuelan subsidiaries | $ 39,400,000 | $ 36,700,000 | $ 88,300,000 | $ 79,800,000
Effective income tax rate, benefited from certain favorable discrete items |  |  |  | 16,000,000
Effective income tax rate, favorable tax settlement |  |  |  | 7,000,000
Effective income tax rate, reserves, statute of limitations and a successful judicial verdict |  |  |  | 6,000,000
Unrecognized tax benefits |  |  | 17,000,000 |
Unrecognized Tax Benefits [Member] |  |  |  |
Income Tax [Line Items] |  |  |  |
Discrete income tax expense (benefit) | 17,000,000 |  |  |
Return To Provision Adjustments [Member] |  |  |  |
Income Tax [Line Items] |  |  |  |
Discrete income tax expense (benefit) | $ (15,000,000) |  |  |
Venezuela [Member] |  |  |  |
Income Tax [Line Items] |  |  |  |
Foreign currency exchange losses related to Venezuelan subsidiaries |  |  | 31,000,000 | 19,000,000
Tax benefits related to Venezuelan subsidiaries |  |  | $ 0 | $ 0

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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax settlements. Including, but not limited to, domestic tax settlement, foreign tax settlement, state and local tax settlement, and other tax settlements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 + Details
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