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Other Comprehensive Earnings/Losses (Reclassifications) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings | $ 50 | $ 54 | $ 98 | $ 108
AB InBev [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings | (7) | 2 | (20) | 2
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 | 67 | 61 | 137 | 123
Prior service cost/credit [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |  |  |  |
Pre-tax amounts reclassified from accumulated other comprehensive losses to net earnings | (10) | (9) | (19) | (17)
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 | $ 57 | $ 52 | $ 118 | $ 106

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