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Basis of Presentation - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 12 Months Ended |  |  |  |  |  |  | 0 Months Ended | 9 Months Ended
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Sep. 30, 2014 | Sep. 30, 2013 | Mar. 31, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 ARGENTINA | Sep. 30, 2014 ARGENTINA | Sep. 30, 2014 SICAD I | Mar. 31, 2014 SICAD I | Dec. 31, 2013 Prior Periods | Sep. 30, 2014 Venezuelan bolívar fuerte | Feb. 08, 2013 Venezuelan bolívar fuerte | Jan. 02, 2010 Venezuelan bolívar fuerte | Sep. 30, 2014 Venezuelan bolívar fuerte SICAD I | Mar. 31, 2014 Venezuelan bolívar fuerte SICAD I | Sep. 30, 2014 Venezuelan bolívar fuerte SICAD II | Jan. 23, 2014 Argentina, Pesos | Sep. 30, 2014 Argentina, Pesos
Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase / (reduction) in cumulative net earnings |  |  |  |  | $ (59) |  |  |  |  | $ 94 |  |  |  |  |  |  |  |
Foreign currency exchange rate translation |  |  |  |  |  |  |  |  |  |  | 6.30 | 6.30 | 4.30 | 11.50 | 10.70 | 49.99 |  |
Foreign currency impacts relating to highly inflationary accounting |  |  | (54) |  |  |  |  | (19) | (142) |  |  |  |  |  |  |  |  |
Argentina peso devalued percentage against US Dollar |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15.00% | 30.00%
Net revenue | 8,337 | 8,472 |  | 25,414 | 25,811 | 180 | 520 |  |  |  |  |  |  |  |  |  |  |
Percentage of consolidated net revenues |  |  |  |  |  | 2.20% | 2.00% |  |  |  |  |  |  |  |  |  |  |
Change in accounting policy effect of change on net revenue |  | 19 |  |  | 19 |  |  |  |  |  |  |  |  |  |  |  |  |
Change in accounting policy effect of change on operating results |  | $ 3 |  |  | $ 3 |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The amount that will be recognized through the income statement (as well as the impact on the other financial statements) as part of highly inflationary accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521 + Details
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