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Other Comprehensive Earnings/Losses (Reclassifications) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings | $ 299 | $ 1,338 | $ 293
AB InBev and SABMiller [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings | 8 | 1,160 | 21
Net loss [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings | 325 | 223 | 304
Prior service costs/credit [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings | (34) | (45) | (32)
Benefit Plans [Member] |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings | $ 291 | $ 178 | $ 272

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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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- Definition Amount before 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=84228862&loc=SL7669686-108580 + Details
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