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Components of Accumulated Other Comprehensive Earnings / (Losses) (Parenthetical) (Detail) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2016 | Mar. 31, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Net loss amounts reclassified from accumulated other comprehensive earnings / (losses) to net earnings (net of tax) | $ (140) | $ (24)
Currency Translation Adjustments |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Net loss amounts reclassified from accumulated other comprehensive earnings / (losses) to net earnings (net of tax) | $ 57 |

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- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=36458714&loc=SL7669686-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=51821188&loc=d3e1436-108581 + Details
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